./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem11_label02.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 30f62f9fddfecd916215dd8f1b75b140359bb989ba38a829add2eea4e4b271dc --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:20:51,136 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:20:51,179 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:20:51,183 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:20:51,183 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:20:51,199 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:20:51,200 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:20:51,200 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:20:51,201 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:20:51,201 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:20:51,201 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:20:51,201 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:20:51,202 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:20:51,202 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:20:51,203 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:20:51,203 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:20:51,203 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:20:51,204 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:20:51,204 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:20:51,204 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:20:51,204 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:20:51,205 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:20:51,205 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:20:51,205 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:20:51,206 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:20:51,206 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:20:51,206 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:20:51,206 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:20:51,207 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:20:51,207 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:20:51,207 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:20:51,207 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:20:51,207 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:20:51,208 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:20:51,208 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:20:51,208 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:20:51,208 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:20:51,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:20:51,209 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:20:51,209 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:20:51,209 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:20:51,209 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:20:51,210 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30f62f9fddfecd916215dd8f1b75b140359bb989ba38a829add2eea4e4b271dc [2024-11-09 19:20:51,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:20:51,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:20:51,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:20:51,419 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:20:51,419 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:20:51,420 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label02.c [2024-11-09 19:20:52,819 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:20:53,058 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:20:53,058 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label02.c [2024-11-09 19:20:53,082 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b1e40bb8/fa74b9f708cf4ef684be1db1de6ff667/FLAG242b700b2 [2024-11-09 19:20:53,100 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b1e40bb8/fa74b9f708cf4ef684be1db1de6ff667 [2024-11-09 19:20:53,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:20:53,104 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:20:53,105 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:20:53,105 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:20:53,110 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:20:53,111 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:20:53" (1/1) ... [2024-11-09 19:20:53,112 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@335da92a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:53, skipping insertion in model container [2024-11-09 19:20:53,112 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:20:53" (1/1) ... [2024-11-09 19:20:53,157 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:20:53,353 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/Problem11_label02.c[7865,7878] [2024-11-09 19:20:53,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:20:53,610 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:20:53,628 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/Problem11_label02.c[7865,7878] [2024-11-09 19:20:53,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:20:53,732 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:20:53,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:53 WrapperNode [2024-11-09 19:20:53,733 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:20:53,734 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:20:53,734 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:20:53,734 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:20:53,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:53" (1/1) ... [2024-11-09 19:20:53,772 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:53" (1/1) ... [2024-11-09 19:20:53,847 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2024-11-09 19:20:53,847 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:20:53,848 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:20:53,848 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:20:53,848 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:20:53,857 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:53" (1/1) ... [2024-11-09 19:20:53,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:53" (1/1) ... [2024-11-09 19:20:53,877 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:53" (1/1) ... [2024-11-09 19:20:53,918 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 19:20:53,919 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:53" (1/1) ... [2024-11-09 19:20:53,919 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:53" (1/1) ... [2024-11-09 19:20:53,948 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:53" (1/1) ... [2024-11-09 19:20:53,953 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:53" (1/1) ... [2024-11-09 19:20:53,960 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:53" (1/1) ... [2024-11-09 19:20:53,965 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:53" (1/1) ... [2024-11-09 19:20:53,974 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:20:53,976 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:20:53,976 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:20:53,976 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:20:53,977 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:53" (1/1) ... [2024-11-09 19:20:53,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:20:53,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:20:54,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 19:20:54,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 19:20:54,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:20:54,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:20:54,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:20:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:20:54,100 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:20:54,101 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:20:55,533 INFO L? ?]: Removed 248 outVars from TransFormulas that were not future-live. [2024-11-09 19:20:55,533 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:20:55,549 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:20:55,549 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:20:55,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:20:55 BoogieIcfgContainer [2024-11-09 19:20:55,550 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:20:55,551 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:20:55,551 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:20:55,553 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:20:55,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:20:53" (1/3) ... [2024-11-09 19:20:55,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd26336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:20:55, skipping insertion in model container [2024-11-09 19:20:55,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:53" (2/3) ... [2024-11-09 19:20:55,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd26336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:20:55, skipping insertion in model container [2024-11-09 19:20:55,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:20:55" (3/3) ... [2024-11-09 19:20:55,555 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label02.c [2024-11-09 19:20:55,567 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:20:55,568 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:20:55,611 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:20:55,616 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;@4f34a8ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:20:55,616 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:20:55,620 INFO L276 IsEmpty]: Start isEmpty. Operand has 286 states, 284 states have (on average 2.1267605633802815) internal successors, (604), 285 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:20:55,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 19:20:55,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:55,626 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:20:55,627 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:55,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:55,630 INFO L85 PathProgramCache]: Analyzing trace with hash -943345360, now seen corresponding path program 1 times [2024-11-09 19:20:55,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:55,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516589576] [2024-11-09 19:20:55,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:55,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:55,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:20:55,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:55,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516589576] [2024-11-09 19:20:55,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516589576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:55,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:20:55,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:20:55,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521848853] [2024-11-09 19:20:55,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:55,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:20:55,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:55,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:20:55,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:55,941 INFO L87 Difference]: Start difference. First operand has 286 states, 284 states have (on average 2.1267605633802815) internal successors, (604), 285 states have internal predecessors, (604), 0 states have call successors, (0), 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) [2024-11-09 19:20:57,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:20:57,077 INFO L93 Difference]: Finished difference Result 767 states and 1708 transitions. [2024-11-09 19:20:57,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:20:57,079 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 [2024-11-09 19:20:57,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:20:57,089 INFO L225 Difference]: With dead ends: 767 [2024-11-09 19:20:57,089 INFO L226 Difference]: Without dead ends: 416 [2024-11-09 19:20:57,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:57,095 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 293 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:20:57,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 227 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:20:57,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-09 19:20:57,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2024-11-09 19:20:57,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 415 states have (on average 2.0240963855421685) internal successors, (840), 415 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:20:57,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 840 transitions. [2024-11-09 19:20:57,166 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 840 transitions. Word has length 56 [2024-11-09 19:20:57,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:20:57,167 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 840 transitions. [2024-11-09 19:20:57,171 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) [2024-11-09 19:20:57,171 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 840 transitions. [2024-11-09 19:20:57,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-09 19:20:57,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:57,174 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:20:57,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:20:57,175 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:57,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:57,178 INFO L85 PathProgramCache]: Analyzing trace with hash -39511466, now seen corresponding path program 1 times [2024-11-09 19:20:57,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:57,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061430748] [2024-11-09 19:20:57,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:57,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:57,467 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:20:57,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:57,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061430748] [2024-11-09 19:20:57,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061430748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:57,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:20:57,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:20:57,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590137370] [2024-11-09 19:20:57,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:57,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:20:57,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:57,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:20:57,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:57,471 INFO L87 Difference]: Start difference. First operand 416 states and 840 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:20:58,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:20:58,344 INFO L93 Difference]: Finished difference Result 1219 states and 2485 transitions. [2024-11-09 19:20:58,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:20:58,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2024-11-09 19:20:58,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:20:58,347 INFO L225 Difference]: With dead ends: 1219 [2024-11-09 19:20:58,347 INFO L226 Difference]: Without dead ends: 805 [2024-11-09 19:20:58,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:58,349 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 261 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:20:58,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 125 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 19:20:58,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2024-11-09 19:20:58,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 794. [2024-11-09 19:20:58,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 1.9722572509457756) internal successors, (1564), 793 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:20:58,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1564 transitions. [2024-11-09 19:20:58,370 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1564 transitions. Word has length 125 [2024-11-09 19:20:58,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:20:58,371 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1564 transitions. [2024-11-09 19:20:58,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:20:58,371 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1564 transitions. [2024-11-09 19:20:58,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-09 19:20:58,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:58,373 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:20:58,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:20:58,373 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:58,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:58,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1006075568, now seen corresponding path program 1 times [2024-11-09 19:20:58,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:58,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288642289] [2024-11-09 19:20:58,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:58,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:58,569 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:20:58,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:58,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288642289] [2024-11-09 19:20:58,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288642289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:58,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:20:58,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:20:58,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779840319] [2024-11-09 19:20:58,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:58,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:20:58,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:58,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:20:58,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:58,572 INFO L87 Difference]: Start difference. First operand 794 states and 1564 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:20:59,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:20:59,467 INFO L93 Difference]: Finished difference Result 2331 states and 4625 transitions. [2024-11-09 19:20:59,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:20:59,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-11-09 19:20:59,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:20:59,473 INFO L225 Difference]: With dead ends: 2331 [2024-11-09 19:20:59,473 INFO L226 Difference]: Without dead ends: 1539 [2024-11-09 19:20:59,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:59,475 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 241 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:20:59,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 199 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 19:20:59,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1539 states. [2024-11-09 19:20:59,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1539 to 1535. [2024-11-09 19:20:59,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1534 states have (on average 1.8370273794002607) internal successors, (2818), 1534 states have internal predecessors, (2818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:20:59,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 2818 transitions. [2024-11-09 19:20:59,497 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 2818 transitions. Word has length 127 [2024-11-09 19:20:59,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:20:59,497 INFO L471 AbstractCegarLoop]: Abstraction has 1535 states and 2818 transitions. [2024-11-09 19:20:59,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:20:59,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 2818 transitions. [2024-11-09 19:20:59,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-09 19:20:59,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:59,500 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:20:59,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:20:59,500 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:59,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:59,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1127408705, now seen corresponding path program 1 times [2024-11-09 19:20:59,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:59,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118133209] [2024-11-09 19:20:59,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:59,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:59,677 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:20:59,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:59,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118133209] [2024-11-09 19:20:59,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118133209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:59,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:20:59,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:20:59,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770709830] [2024-11-09 19:20:59,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:59,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:20:59,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:59,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:20:59,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:59,679 INFO L87 Difference]: Start difference. First operand 1535 states and 2818 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:00,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:21:00,868 INFO L93 Difference]: Finished difference Result 3276 states and 6167 transitions. [2024-11-09 19:21:00,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:21:00,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 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 184 [2024-11-09 19:21:00,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:21:00,875 INFO L225 Difference]: With dead ends: 3276 [2024-11-09 19:21:00,875 INFO L226 Difference]: Without dead ends: 1928 [2024-11-09 19:21:00,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:21:00,877 INFO L432 NwaCegarLoop]: 412 mSDtfsCounter, 300 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:21:00,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 446 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:21:00,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2024-11-09 19:21:00,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1925. [2024-11-09 19:21:00,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1925 states, 1924 states have (on average 1.863825363825364) internal successors, (3586), 1924 states have internal predecessors, (3586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:00,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 3586 transitions. [2024-11-09 19:21:00,902 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 3586 transitions. Word has length 184 [2024-11-09 19:21:00,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:21:00,903 INFO L471 AbstractCegarLoop]: Abstraction has 1925 states and 3586 transitions. [2024-11-09 19:21:00,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:00,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 3586 transitions. [2024-11-09 19:21:00,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-09 19:21:00,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:21:00,906 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:21:00,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:21:00,906 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:21:00,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:21:00,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1906721288, now seen corresponding path program 1 times [2024-11-09 19:21:00,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:21:00,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848745527] [2024-11-09 19:21:00,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:00,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:21:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:01,172 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 19:21:01,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:21:01,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848745527] [2024-11-09 19:21:01,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848745527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:21:01,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:21:01,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:21:01,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489569464] [2024-11-09 19:21:01,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:21:01,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:21:01,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:21:01,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:21:01,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:21:01,176 INFO L87 Difference]: Start difference. First operand 1925 states and 3586 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:02,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:21:02,002 INFO L93 Difference]: Finished difference Result 4414 states and 8354 transitions. [2024-11-09 19:21:02,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:21:02,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 240 [2024-11-09 19:21:02,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:21:02,011 INFO L225 Difference]: With dead ends: 4414 [2024-11-09 19:21:02,011 INFO L226 Difference]: Without dead ends: 2676 [2024-11-09 19:21:02,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:21:02,016 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 262 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:21:02,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 516 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 19:21:02,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2024-11-09 19:21:02,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2481. [2024-11-09 19:21:02,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2481 states, 2480 states have (on average 1.8576612903225806) internal successors, (4607), 2480 states have internal predecessors, (4607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:02,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2481 states to 2481 states and 4607 transitions. [2024-11-09 19:21:02,054 INFO L78 Accepts]: Start accepts. Automaton has 2481 states and 4607 transitions. Word has length 240 [2024-11-09 19:21:02,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:21:02,055 INFO L471 AbstractCegarLoop]: Abstraction has 2481 states and 4607 transitions. [2024-11-09 19:21:02,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:02,056 INFO L276 IsEmpty]: Start isEmpty. Operand 2481 states and 4607 transitions. [2024-11-09 19:21:02,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-09 19:21:02,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:21:02,058 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:21:02,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:21:02,059 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:21:02,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:21:02,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1970627814, now seen corresponding path program 1 times [2024-11-09 19:21:02,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:21:02,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176718124] [2024-11-09 19:21:02,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:02,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:21:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:02,509 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 27 proven. 78 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-09 19:21:02,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:21:02,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176718124] [2024-11-09 19:21:02,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176718124] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:21:02,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451421371] [2024-11-09 19:21:02,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:02,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:21:02,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:21:02,515 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:21:02,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 19:21:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:02,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:21:02,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:21:02,719 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-09 19:21:02,719 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:21:02,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451421371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:21:02,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:21:02,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 19:21:02,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629483201] [2024-11-09 19:21:02,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:21:02,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:21:02,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:21:02,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:21:02,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:21:02,721 INFO L87 Difference]: Start difference. First operand 2481 states and 4607 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:03,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:21:03,558 INFO L93 Difference]: Finished difference Result 6445 states and 12145 transitions. [2024-11-09 19:21:03,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:21:03,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 246 [2024-11-09 19:21:03,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:21:03,569 INFO L225 Difference]: With dead ends: 6445 [2024-11-09 19:21:03,569 INFO L226 Difference]: Without dead ends: 3966 [2024-11-09 19:21:03,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:21:03,572 INFO L432 NwaCegarLoop]: 379 mSDtfsCounter, 295 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:21:03,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 395 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 19:21:03,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3966 states. [2024-11-09 19:21:03,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3966 to 3963. [2024-11-09 19:21:03,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3963 states, 3962 states have (on average 1.861686017163049) internal successors, (7376), 3962 states have internal predecessors, (7376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:03,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3963 states to 3963 states and 7376 transitions. [2024-11-09 19:21:03,619 INFO L78 Accepts]: Start accepts. Automaton has 3963 states and 7376 transitions. Word has length 246 [2024-11-09 19:21:03,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:21:03,620 INFO L471 AbstractCegarLoop]: Abstraction has 3963 states and 7376 transitions. [2024-11-09 19:21:03,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:03,620 INFO L276 IsEmpty]: Start isEmpty. Operand 3963 states and 7376 transitions. [2024-11-09 19:21:03,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-09 19:21:03,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:21:03,623 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:21:03,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 19:21:03,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 19:21:03,824 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:21:03,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:21:03,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1497484708, now seen corresponding path program 1 times [2024-11-09 19:21:03,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:21:03,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611383125] [2024-11-09 19:21:03,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:03,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:21:03,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:04,014 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:21:04,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:21:04,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611383125] [2024-11-09 19:21:04,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611383125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:21:04,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:21:04,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:21:04,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813079108] [2024-11-09 19:21:04,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:21:04,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:21:04,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:21:04,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:21:04,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:21:04,018 INFO L87 Difference]: Start difference. First operand 3963 states and 7376 transitions. Second operand has 4 states, 4 states have (on average 71.25) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:05,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:21:05,349 INFO L93 Difference]: Finished difference Result 12222 states and 23165 transitions. [2024-11-09 19:21:05,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:21:05,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.25) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 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 285 [2024-11-09 19:21:05,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:21:05,370 INFO L225 Difference]: With dead ends: 12222 [2024-11-09 19:21:05,371 INFO L226 Difference]: Without dead ends: 8446 [2024-11-09 19:21:05,375 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:21:05,375 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 503 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 1778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:21:05,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 104 Invalid, 1778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1613 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 19:21:05,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8446 states. [2024-11-09 19:21:05,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8446 to 8441. [2024-11-09 19:21:05,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8441 states, 8440 states have (on average 1.8778436018957345) internal successors, (15849), 8440 states have internal predecessors, (15849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:05,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8441 states to 8441 states and 15849 transitions. [2024-11-09 19:21:05,478 INFO L78 Accepts]: Start accepts. Automaton has 8441 states and 15849 transitions. Word has length 285 [2024-11-09 19:21:05,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:21:05,479 INFO L471 AbstractCegarLoop]: Abstraction has 8441 states and 15849 transitions. [2024-11-09 19:21:05,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.25) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:05,479 INFO L276 IsEmpty]: Start isEmpty. Operand 8441 states and 15849 transitions. [2024-11-09 19:21:05,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-11-09 19:21:05,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:21:05,483 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:21:05,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:21:05,484 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:21:05,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:21:05,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1565680037, now seen corresponding path program 1 times [2024-11-09 19:21:05,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:21:05,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546558316] [2024-11-09 19:21:05,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:05,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:21:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:05,685 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-09 19:21:05,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:21:05,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546558316] [2024-11-09 19:21:05,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546558316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:21:05,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:21:05,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:21:05,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321078627] [2024-11-09 19:21:05,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:21:05,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:21:05,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:21:05,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:21:05,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:21:05,687 INFO L87 Difference]: Start difference. First operand 8441 states and 15849 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:06,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:21:06,511 INFO L93 Difference]: Finished difference Result 19113 states and 36099 transitions. [2024-11-09 19:21:06,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:21:06,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 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 294 [2024-11-09 19:21:06,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:21:06,540 INFO L225 Difference]: With dead ends: 19113 [2024-11-09 19:21:06,540 INFO L226 Difference]: Without dead ends: 10859 [2024-11-09 19:21:06,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:21:06,547 INFO L432 NwaCegarLoop]: 483 mSDtfsCounter, 261 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:21:06,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 507 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 19:21:06,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10859 states. [2024-11-09 19:21:06,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10859 to 10845. [2024-11-09 19:21:06,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10845 states, 10844 states have (on average 1.8477499077831059) internal successors, (20037), 10844 states have internal predecessors, (20037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:06,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10845 states to 10845 states and 20037 transitions. [2024-11-09 19:21:06,795 INFO L78 Accepts]: Start accepts. Automaton has 10845 states and 20037 transitions. Word has length 294 [2024-11-09 19:21:06,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:21:06,796 INFO L471 AbstractCegarLoop]: Abstraction has 10845 states and 20037 transitions. [2024-11-09 19:21:06,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:06,796 INFO L276 IsEmpty]: Start isEmpty. Operand 10845 states and 20037 transitions. [2024-11-09 19:21:06,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-11-09 19:21:06,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:21:06,805 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:21:06,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:21:06,805 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:21:06,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:21:06,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1060724534, now seen corresponding path program 1 times [2024-11-09 19:21:06,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:21:06,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414478128] [2024-11-09 19:21:06,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:06,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:21:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:07,366 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 174 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:21:07,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:21:07,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414478128] [2024-11-09 19:21:07,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414478128] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:21:07,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130082831] [2024-11-09 19:21:07,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:07,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:21:07,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:21:07,372 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:21:07,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 19:21:07,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:07,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 19:21:07,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:21:08,752 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 174 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:21:08,753 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 19:21:10,286 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 174 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:21:10,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130082831] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 19:21:10,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 19:21:10,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-09 19:21:10,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300382192] [2024-11-09 19:21:10,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 19:21:10,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 19:21:10,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:21:10,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 19:21:10,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-09 19:21:10,288 INFO L87 Difference]: Start difference. First operand 10845 states and 20037 transitions. Second operand has 8 states, 8 states have (on average 73.375) internal successors, (587), 7 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:13,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:21:13,514 INFO L93 Difference]: Finished difference Result 25073 states and 46498 transitions. [2024-11-09 19:21:13,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 19:21:13,515 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 73.375) internal successors, (587), 7 states have internal predecessors, (587), 0 states have call successors, (0), 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 332 [2024-11-09 19:21:13,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:21:13,534 INFO L225 Difference]: With dead ends: 25073 [2024-11-09 19:21:13,535 INFO L226 Difference]: Without dead ends: 14971 [2024-11-09 19:21:13,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 673 GetRequests, 660 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2024-11-09 19:21:13,543 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 1721 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 4341 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1721 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 4769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 4341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:21:13,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1721 Valid, 202 Invalid, 4769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 4341 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 19:21:13,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14971 states. [2024-11-09 19:21:13,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14971 to 11558. [2024-11-09 19:21:13,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11558 states, 11557 states have (on average 1.8188976377952757) internal successors, (21021), 11557 states have internal predecessors, (21021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:13,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11558 states to 11558 states and 21021 transitions. [2024-11-09 19:21:13,664 INFO L78 Accepts]: Start accepts. Automaton has 11558 states and 21021 transitions. Word has length 332 [2024-11-09 19:21:13,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:21:13,664 INFO L471 AbstractCegarLoop]: Abstraction has 11558 states and 21021 transitions. [2024-11-09 19:21:13,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 73.375) internal successors, (587), 7 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:13,664 INFO L276 IsEmpty]: Start isEmpty. Operand 11558 states and 21021 transitions. [2024-11-09 19:21:13,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-11-09 19:21:13,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:21:13,673 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-09 19:21:13,693 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 19:21:13,873 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,SelfDestructingSolverStorable8 [2024-11-09 19:21:13,874 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:21:13,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:21:13,874 INFO L85 PathProgramCache]: Analyzing trace with hash 2106590895, now seen corresponding path program 1 times [2024-11-09 19:21:13,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:21:13,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212512268] [2024-11-09 19:21:13,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:13,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:21:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:14,805 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 240 proven. 101 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-09 19:21:14,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:21:14,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212512268] [2024-11-09 19:21:14,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212512268] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:21:14,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135830690] [2024-11-09 19:21:14,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:14,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:21:14,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:21:14,807 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) [2024-11-09 19:21:14,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 19:21:14,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:14,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 19:21:14,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:21:15,005 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-09 19:21:15,005 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:21:15,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135830690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:21:15,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:21:15,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-09 19:21:15,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643795864] [2024-11-09 19:21:15,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:21:15,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:21:15,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:21:15,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:21:15,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 19:21:15,007 INFO L87 Difference]: Start difference. First operand 11558 states and 21021 transitions. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:15,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:21:15,739 INFO L93 Difference]: Finished difference Result 21647 states and 39487 transitions. [2024-11-09 19:21:15,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:21:15,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 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 353 [2024-11-09 19:21:15,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:21:15,756 INFO L225 Difference]: With dead ends: 21647 [2024-11-09 19:21:15,756 INFO L226 Difference]: Without dead ends: 11573 [2024-11-09 19:21:15,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 19:21:15,765 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 225 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:21:15,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 451 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 19:21:15,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11573 states. [2024-11-09 19:21:15,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11573 to 11558. [2024-11-09 19:21:15,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11558 states, 11557 states have (on average 1.7893051830059703) internal successors, (20679), 11557 states have internal predecessors, (20679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:15,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11558 states to 11558 states and 20679 transitions. [2024-11-09 19:21:15,871 INFO L78 Accepts]: Start accepts. Automaton has 11558 states and 20679 transitions. Word has length 353 [2024-11-09 19:21:15,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:21:15,872 INFO L471 AbstractCegarLoop]: Abstraction has 11558 states and 20679 transitions. [2024-11-09 19:21:15,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:15,872 INFO L276 IsEmpty]: Start isEmpty. Operand 11558 states and 20679 transitions. [2024-11-09 19:21:15,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2024-11-09 19:21:15,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:21:15,878 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:21:15,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 19:21:16,078 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 [2024-11-09 19:21:16,079 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:21:16,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:21:16,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1707063490, now seen corresponding path program 1 times [2024-11-09 19:21:16,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:21:16,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954975784] [2024-11-09 19:21:16,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:16,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:21:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:16,354 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:21:16,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:21:16,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954975784] [2024-11-09 19:21:16,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954975784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:21:16,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:21:16,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:21:16,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581016689] [2024-11-09 19:21:16,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:21:16,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:21:16,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:21:16,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:21:16,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:21:16,357 INFO L87 Difference]: Start difference. First operand 11558 states and 20679 transitions. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:17,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:21:17,174 INFO L93 Difference]: Finished difference Result 27928 states and 50087 transitions. [2024-11-09 19:21:17,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:21:17,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 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 360 [2024-11-09 19:21:17,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:21:17,195 INFO L225 Difference]: With dead ends: 27928 [2024-11-09 19:21:17,195 INFO L226 Difference]: Without dead ends: 17112 [2024-11-09 19:21:17,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:21:17,207 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 177 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:21:17,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 73 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 19:21:17,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17112 states. [2024-11-09 19:21:17,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17112 to 17104. [2024-11-09 19:21:17,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17104 states, 17103 states have (on average 1.7806817517394609) internal successors, (30455), 17103 states have internal predecessors, (30455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:17,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17104 states to 17104 states and 30455 transitions. [2024-11-09 19:21:17,365 INFO L78 Accepts]: Start accepts. Automaton has 17104 states and 30455 transitions. Word has length 360 [2024-11-09 19:21:17,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:21:17,366 INFO L471 AbstractCegarLoop]: Abstraction has 17104 states and 30455 transitions. [2024-11-09 19:21:17,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:17,366 INFO L276 IsEmpty]: Start isEmpty. Operand 17104 states and 30455 transitions. [2024-11-09 19:21:17,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2024-11-09 19:21:17,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:21:17,374 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:21:17,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 19:21:17,375 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:21:17,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:21:17,375 INFO L85 PathProgramCache]: Analyzing trace with hash 652234888, now seen corresponding path program 1 times [2024-11-09 19:21:17,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:21:17,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454443873] [2024-11-09 19:21:17,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:17,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:21:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:18,031 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-11-09 19:21:18,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:21:18,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454443873] [2024-11-09 19:21:18,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454443873] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:21:18,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126225689] [2024-11-09 19:21:18,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:18,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:21:18,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:21:18,036 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) [2024-11-09 19:21:18,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 19:21:18,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:18,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 19:21:18,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:21:18,987 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-11-09 19:21:18,987 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 19:21:19,938 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-11-09 19:21:19,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126225689] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 19:21:19,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 19:21:19,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2024-11-09 19:21:19,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260238331] [2024-11-09 19:21:19,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:21:19,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:21:19,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:21:19,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:21:19,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:21:19,941 INFO L87 Difference]: Start difference. First operand 17104 states and 30455 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:20,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:21:20,787 INFO L93 Difference]: Finished difference Result 34383 states and 61246 transitions. [2024-11-09 19:21:20,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:21:20,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 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 363 [2024-11-09 19:21:20,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:21:20,811 INFO L225 Difference]: With dead ends: 34383 [2024-11-09 19:21:20,811 INFO L226 Difference]: Without dead ends: 19503 [2024-11-09 19:21:20,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 727 GetRequests, 723 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:21:20,825 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 295 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:21:20,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 119 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 19:21:20,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19503 states. [2024-11-09 19:21:20,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19503 to 17283. [2024-11-09 19:21:20,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17283 states, 17282 states have (on average 1.7664043513482235) internal successors, (30527), 17282 states have internal predecessors, (30527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:21,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17283 states to 17283 states and 30527 transitions. [2024-11-09 19:21:21,003 INFO L78 Accepts]: Start accepts. Automaton has 17283 states and 30527 transitions. Word has length 363 [2024-11-09 19:21:21,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:21:21,003 INFO L471 AbstractCegarLoop]: Abstraction has 17283 states and 30527 transitions. [2024-11-09 19:21:21,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:21,003 INFO L276 IsEmpty]: Start isEmpty. Operand 17283 states and 30527 transitions. [2024-11-09 19:21:21,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-09 19:21:21,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:21:21,013 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:21:21,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 19:21:21,214 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 [2024-11-09 19:21:21,215 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:21:21,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:21:21,215 INFO L85 PathProgramCache]: Analyzing trace with hash -2024219512, now seen corresponding path program 1 times [2024-11-09 19:21:21,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:21:21,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581129264] [2024-11-09 19:21:21,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:21,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:21:21,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:21,357 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-09 19:21:21,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:21:21,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581129264] [2024-11-09 19:21:21,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581129264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:21:21,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:21:21,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:21:21,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231924154] [2024-11-09 19:21:21,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:21:21,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:21:21,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:21:21,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:21:21,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:21:21,358 INFO L87 Difference]: Start difference. First operand 17283 states and 30527 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:22,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:21:22,067 INFO L93 Difference]: Finished difference Result 30287 states and 53362 transitions. [2024-11-09 19:21:22,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:21:22,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 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 395 [2024-11-09 19:21:22,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:21:22,082 INFO L225 Difference]: With dead ends: 30287 [2024-11-09 19:21:22,082 INFO L226 Difference]: Without dead ends: 15228 [2024-11-09 19:21:22,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:21:22,094 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 255 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:21:22,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 136 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 19:21:22,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15228 states. [2024-11-09 19:21:22,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15228 to 15042. [2024-11-09 19:21:22,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15042 states, 15041 states have (on average 1.7506814706468985) internal successors, (26332), 15041 states have internal predecessors, (26332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:22,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15042 states to 15042 states and 26332 transitions. [2024-11-09 19:21:22,291 INFO L78 Accepts]: Start accepts. Automaton has 15042 states and 26332 transitions. Word has length 395 [2024-11-09 19:21:22,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:21:22,292 INFO L471 AbstractCegarLoop]: Abstraction has 15042 states and 26332 transitions. [2024-11-09 19:21:22,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:22,292 INFO L276 IsEmpty]: Start isEmpty. Operand 15042 states and 26332 transitions. [2024-11-09 19:21:22,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2024-11-09 19:21:22,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:21:22,303 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:21:22,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 19:21:22,304 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:21:22,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:21:22,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1422877838, now seen corresponding path program 1 times [2024-11-09 19:21:22,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:21:22,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868668363] [2024-11-09 19:21:22,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:22,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:21:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:22,449 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 493 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2024-11-09 19:21:22,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:21:22,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868668363] [2024-11-09 19:21:22,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868668363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:21:22,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:21:22,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:21:22,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025509631] [2024-11-09 19:21:22,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:21:22,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:21:22,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:21:22,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:21:22,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:21:22,451 INFO L87 Difference]: Start difference. First operand 15042 states and 26332 transitions. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:23,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:21:23,222 INFO L93 Difference]: Finished difference Result 29524 states and 51723 transitions. [2024-11-09 19:21:23,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:21:23,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 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 452 [2024-11-09 19:21:23,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:21:23,239 INFO L225 Difference]: With dead ends: 29524 [2024-11-09 19:21:23,239 INFO L226 Difference]: Without dead ends: 16706 [2024-11-09 19:21:23,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:21:23,249 INFO L432 NwaCegarLoop]: 428 mSDtfsCounter, 222 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:21:23,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 448 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 19:21:23,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16706 states. [2024-11-09 19:21:23,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16706 to 14663. [2024-11-09 19:21:23,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14663 states, 14662 states have (on average 1.745805483562952) internal successors, (25597), 14662 states have internal predecessors, (25597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:23,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14663 states to 14663 states and 25597 transitions. [2024-11-09 19:21:23,386 INFO L78 Accepts]: Start accepts. Automaton has 14663 states and 25597 transitions. Word has length 452 [2024-11-09 19:21:23,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:21:23,386 INFO L471 AbstractCegarLoop]: Abstraction has 14663 states and 25597 transitions. [2024-11-09 19:21:23,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:23,386 INFO L276 IsEmpty]: Start isEmpty. Operand 14663 states and 25597 transitions. [2024-11-09 19:21:23,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2024-11-09 19:21:23,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:21:23,399 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:21:23,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 19:21:23,399 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:21:23,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:21:23,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1710525503, now seen corresponding path program 1 times [2024-11-09 19:21:23,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:21:23,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258189744] [2024-11-09 19:21:23,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:23,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:21:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:23,896 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 495 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-11-09 19:21:23,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:21:23,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258189744] [2024-11-09 19:21:23,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258189744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:21:23,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:21:23,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:21:23,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789909239] [2024-11-09 19:21:23,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:21:23,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:21:23,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:21:23,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:21:23,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:21:23,898 INFO L87 Difference]: Start difference. First operand 14663 states and 25597 transitions. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:24,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:21:24,632 INFO L93 Difference]: Finished difference Result 27660 states and 48296 transitions. [2024-11-09 19:21:24,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:21:24,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 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 486 [2024-11-09 19:21:24,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:21:24,647 INFO L225 Difference]: With dead ends: 27660 [2024-11-09 19:21:24,647 INFO L226 Difference]: Without dead ends: 15036 [2024-11-09 19:21:24,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:21:24,656 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 208 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:21:24,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 176 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 19:21:24,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15036 states. [2024-11-09 19:21:24,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15036 to 15033. [2024-11-09 19:21:24,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15033 states, 15032 states have (on average 1.7399547631719) internal successors, (26155), 15032 states have internal predecessors, (26155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:24,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15033 states to 15033 states and 26155 transitions. [2024-11-09 19:21:24,782 INFO L78 Accepts]: Start accepts. Automaton has 15033 states and 26155 transitions. Word has length 486 [2024-11-09 19:21:24,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:21:24,783 INFO L471 AbstractCegarLoop]: Abstraction has 15033 states and 26155 transitions. [2024-11-09 19:21:24,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:24,783 INFO L276 IsEmpty]: Start isEmpty. Operand 15033 states and 26155 transitions. [2024-11-09 19:21:24,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2024-11-09 19:21:24,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:21:24,794 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:21:24,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 19:21:24,795 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:21:24,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:21:24,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1453108102, now seen corresponding path program 1 times [2024-11-09 19:21:24,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:21:24,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437003448] [2024-11-09 19:21:24,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:24,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:21:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:25,221 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 495 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-11-09 19:21:25,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:21:25,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437003448] [2024-11-09 19:21:25,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437003448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:21:25,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:21:25,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 19:21:25,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979111213] [2024-11-09 19:21:25,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:21:25,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:21:25,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:21:25,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:21:25,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:21:25,224 INFO L87 Difference]: Start difference. First operand 15033 states and 26155 transitions. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:26,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:21:26,336 INFO L93 Difference]: Finished difference Result 29878 states and 51973 transitions. [2024-11-09 19:21:26,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:21:26,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 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 487 [2024-11-09 19:21:26,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:21:26,350 INFO L225 Difference]: With dead ends: 29878 [2024-11-09 19:21:26,351 INFO L226 Difference]: Without dead ends: 15587 [2024-11-09 19:21:26,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:21:26,359 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 526 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 1488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:21:26,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 153 Invalid, 1488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 19:21:26,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15587 states. [2024-11-09 19:21:26,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15587 to 15032. [2024-11-09 19:21:26,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15032 states, 15031 states have (on average 1.730091144967068) internal successors, (26005), 15031 states have internal predecessors, (26005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:26,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15032 states to 15032 states and 26005 transitions. [2024-11-09 19:21:26,480 INFO L78 Accepts]: Start accepts. Automaton has 15032 states and 26005 transitions. Word has length 487 [2024-11-09 19:21:26,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:21:26,480 INFO L471 AbstractCegarLoop]: Abstraction has 15032 states and 26005 transitions. [2024-11-09 19:21:26,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:26,480 INFO L276 IsEmpty]: Start isEmpty. Operand 15032 states and 26005 transitions. [2024-11-09 19:21:26,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2024-11-09 19:21:26,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:21:26,491 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2024-11-09 19:21:26,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 19:21:26,492 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:21:26,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:21:26,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1652049098, now seen corresponding path program 1 times [2024-11-09 19:21:26,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:21:26,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54057374] [2024-11-09 19:21:26,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:26,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:21:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:27,404 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 586 proven. 134 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-09 19:21:27,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:21:27,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54057374] [2024-11-09 19:21:27,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54057374] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:21:27,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721286362] [2024-11-09 19:21:27,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:27,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:21:27,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:21:27,406 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) [2024-11-09 19:21:27,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 19:21:27,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:27,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:21:27,552 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:21:27,642 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 667 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-09 19:21:27,642 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:21:27,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721286362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:21:27,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:21:27,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-09 19:21:27,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341881081] [2024-11-09 19:21:27,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:21:27,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:21:27,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:21:27,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:21:27,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:21:27,644 INFO L87 Difference]: Start difference. First operand 15032 states and 26005 transitions. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:28,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:21:28,340 INFO L93 Difference]: Finished difference Result 29699 states and 51423 transitions. [2024-11-09 19:21:28,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:21:28,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 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 524 [2024-11-09 19:21:28,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:21:28,356 INFO L225 Difference]: With dead ends: 29699 [2024-11-09 19:21:28,356 INFO L226 Difference]: Without dead ends: 16891 [2024-11-09 19:21:28,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 524 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:21:28,365 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 212 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:21:28,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 452 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 19:21:28,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16891 states. [2024-11-09 19:21:28,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16891 to 14847. [2024-11-09 19:21:28,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14847 states, 14846 states have (on average 1.7303650815034353) internal successors, (25689), 14846 states have internal predecessors, (25689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:28,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14847 states to 14847 states and 25689 transitions. [2024-11-09 19:21:28,491 INFO L78 Accepts]: Start accepts. Automaton has 14847 states and 25689 transitions. Word has length 524 [2024-11-09 19:21:28,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:21:28,492 INFO L471 AbstractCegarLoop]: Abstraction has 14847 states and 25689 transitions. [2024-11-09 19:21:28,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:28,492 INFO L276 IsEmpty]: Start isEmpty. Operand 14847 states and 25689 transitions. [2024-11-09 19:21:28,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 579 [2024-11-09 19:21:28,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:21:28,503 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:21:28,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 19:21:28,703 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,SelfDestructingSolverStorable16 [2024-11-09 19:21:28,704 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:21:28,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:21:28,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1877505647, now seen corresponding path program 1 times [2024-11-09 19:21:28,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:21:28,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037445480] [2024-11-09 19:21:28,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:28,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:21:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:29,082 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 667 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-09 19:21:29,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:21:29,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037445480] [2024-11-09 19:21:29,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037445480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:21:29,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:21:29,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:21:29,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917301623] [2024-11-09 19:21:29,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:21:29,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:21:29,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:21:29,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:21:29,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:21:29,084 INFO L87 Difference]: Start difference. First operand 14847 states and 25689 transitions. Second operand has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:29,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:21:29,877 INFO L93 Difference]: Finished difference Result 31545 states and 54649 transitions. [2024-11-09 19:21:29,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:21:29,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 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 578 [2024-11-09 19:21:29,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:21:29,893 INFO L225 Difference]: With dead ends: 31545 [2024-11-09 19:21:29,893 INFO L226 Difference]: Without dead ends: 17625 [2024-11-09 19:21:29,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:21:29,901 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 240 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:21:29,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 74 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 19:21:29,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17625 states. [2024-11-09 19:21:30,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17625 to 14662. [2024-11-09 19:21:30,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14662 states, 14661 states have (on average 1.7298274333265125) internal successors, (25361), 14661 states have internal predecessors, (25361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:30,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14662 states to 14662 states and 25361 transitions. [2024-11-09 19:21:30,025 INFO L78 Accepts]: Start accepts. Automaton has 14662 states and 25361 transitions. Word has length 578 [2024-11-09 19:21:30,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:21:30,026 INFO L471 AbstractCegarLoop]: Abstraction has 14662 states and 25361 transitions. [2024-11-09 19:21:30,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:30,026 INFO L276 IsEmpty]: Start isEmpty. Operand 14662 states and 25361 transitions. [2024-11-09 19:21:30,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2024-11-09 19:21:30,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:21:30,038 INFO L215 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, 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, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:21:30,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 19:21:30,038 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:21:30,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:21:30,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1737524384, now seen corresponding path program 1 times [2024-11-09 19:21:30,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:21:30,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703571659] [2024-11-09 19:21:30,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:30,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:21:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:30,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1739 backedges. 1203 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-09 19:21:30,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:21:30,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703571659] [2024-11-09 19:21:30,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703571659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:21:30,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:21:30,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:21:30,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549527021] [2024-11-09 19:21:30,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:21:30,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:21:30,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:21:30,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:21:30,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:21:30,500 INFO L87 Difference]: Start difference. First operand 14662 states and 25361 transitions. Second operand has 4 states, 4 states have (on average 90.25) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:31,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:21:31,672 INFO L93 Difference]: Finished difference Result 28776 states and 49746 transitions. [2024-11-09 19:21:31,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:21:31,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.25) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 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 690 [2024-11-09 19:21:31,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:21:31,696 INFO L225 Difference]: With dead ends: 28776 [2024-11-09 19:21:31,696 INFO L226 Difference]: Without dead ends: 16152 [2024-11-09 19:21:31,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:21:31,704 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 445 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1567 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:21:31,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 78 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1567 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:21:31,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16152 states. [2024-11-09 19:21:31,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16152 to 13552. [2024-11-09 19:21:31,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13552 states, 13551 states have (on average 1.7306471847096154) internal successors, (23452), 13551 states have internal predecessors, (23452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:31,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13552 states to 13552 states and 23452 transitions. [2024-11-09 19:21:31,834 INFO L78 Accepts]: Start accepts. Automaton has 13552 states and 23452 transitions. Word has length 690 [2024-11-09 19:21:31,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:21:31,835 INFO L471 AbstractCegarLoop]: Abstraction has 13552 states and 23452 transitions. [2024-11-09 19:21:31,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.25) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:31,835 INFO L276 IsEmpty]: Start isEmpty. Operand 13552 states and 23452 transitions. [2024-11-09 19:21:31,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2024-11-09 19:21:31,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:21:31,847 INFO L215 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, 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, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 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] [2024-11-09 19:21:31,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 19:21:31,848 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:21:31,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:21:31,848 INFO L85 PathProgramCache]: Analyzing trace with hash 270815871, now seen corresponding path program 1 times [2024-11-09 19:21:31,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:21:31,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006670093] [2024-11-09 19:21:31,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:31,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:21:31,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:32,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2390 backedges. 1119 proven. 342 refuted. 0 times theorem prover too weak. 929 trivial. 0 not checked. [2024-11-09 19:21:32,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:21:32,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006670093] [2024-11-09 19:21:32,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006670093] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:21:32,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714682881] [2024-11-09 19:21:32,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:32,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:21:32,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:21:33,003 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) [2024-11-09 19:21:33,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 19:21:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:33,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 19:21:33,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:21:33,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2390 backedges. 1446 proven. 384 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2024-11-09 19:21:33,827 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 19:21:34,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2390 backedges. 1830 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2024-11-09 19:21:34,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714682881] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 19:21:34,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 19:21:34,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 11 [2024-11-09 19:21:34,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96037479] [2024-11-09 19:21:34,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:21:34,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 19:21:34,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:21:34,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 19:21:34,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-09 19:21:34,946 INFO L87 Difference]: Start difference. First operand 13552 states and 23452 transitions. Second operand has 5 states, 5 states have (on average 88.8) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:36,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:21:36,662 INFO L93 Difference]: Finished difference Result 30067 states and 52072 transitions. [2024-11-09 19:21:36,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:21:36,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.8) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 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 797 [2024-11-09 19:21:36,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:21:36,683 INFO L225 Difference]: With dead ends: 30067 [2024-11-09 19:21:36,683 INFO L226 Difference]: Without dead ends: 18739 [2024-11-09 19:21:36,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1598 GetRequests, 1588 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-09 19:21:36,693 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 480 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1839 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 2031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 1839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:21:36,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 80 Invalid, 2031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 1839 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 19:21:36,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18739 states. [2024-11-09 19:21:36,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18739 to 12627. [2024-11-09 19:21:36,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12627 states, 12626 states have (on average 1.7308728021542847) internal successors, (21854), 12626 states have internal predecessors, (21854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:36,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12627 states to 12627 states and 21854 transitions. [2024-11-09 19:21:36,842 INFO L78 Accepts]: Start accepts. Automaton has 12627 states and 21854 transitions. Word has length 797 [2024-11-09 19:21:36,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:21:36,842 INFO L471 AbstractCegarLoop]: Abstraction has 12627 states and 21854 transitions. [2024-11-09 19:21:36,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.8) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:36,843 INFO L276 IsEmpty]: Start isEmpty. Operand 12627 states and 21854 transitions. [2024-11-09 19:21:36,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 958 [2024-11-09 19:21:36,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:21:36,854 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 19:21:36,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 19:21:37,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:21:37,055 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:21:37,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:21:37,056 INFO L85 PathProgramCache]: Analyzing trace with hash -765535987, now seen corresponding path program 1 times [2024-11-09 19:21:37,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:21:37,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083555614] [2024-11-09 19:21:37,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:37,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:21:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:37,317 INFO L134 CoverageAnalysis]: Checked inductivity of 3235 backedges. 2068 proven. 0 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2024-11-09 19:21:37,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:21:37,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083555614] [2024-11-09 19:21:37,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083555614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:21:37,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:21:37,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:21:37,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494167004] [2024-11-09 19:21:37,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:21:37,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:21:37,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:21:37,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:21:37,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:21:37,319 INFO L87 Difference]: Start difference. First operand 12627 states and 21854 transitions. Second operand has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:38,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:21:38,042 INFO L93 Difference]: Finished difference Result 26917 states and 46580 transitions. [2024-11-09 19:21:38,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:21:38,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 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 957 [2024-11-09 19:21:38,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:21:38,055 INFO L225 Difference]: With dead ends: 26917 [2024-11-09 19:21:38,055 INFO L226 Difference]: Without dead ends: 14292 [2024-11-09 19:21:38,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:21:38,063 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 252 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:21:38,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 110 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 19:21:38,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14292 states. [2024-11-09 19:21:38,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14292 to 12997. [2024-11-09 19:21:38,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12997 states, 12996 states have (on average 1.724222837796245) internal successors, (22408), 12996 states have internal predecessors, (22408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:38,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12997 states to 12997 states and 22408 transitions. [2024-11-09 19:21:38,172 INFO L78 Accepts]: Start accepts. Automaton has 12997 states and 22408 transitions. Word has length 957 [2024-11-09 19:21:38,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:21:38,172 INFO L471 AbstractCegarLoop]: Abstraction has 12997 states and 22408 transitions. [2024-11-09 19:21:38,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:38,172 INFO L276 IsEmpty]: Start isEmpty. Operand 12997 states and 22408 transitions. [2024-11-09 19:21:38,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1109 [2024-11-09 19:21:38,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:21:38,186 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:21:38,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 19:21:38,187 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:21:38,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:21:38,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1723868806, now seen corresponding path program 1 times [2024-11-09 19:21:38,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:21:38,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988278213] [2024-11-09 19:21:38,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:38,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:21:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:39,854 INFO L134 CoverageAnalysis]: Checked inductivity of 4049 backedges. 2161 proven. 978 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2024-11-09 19:21:39,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:21:39,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988278213] [2024-11-09 19:21:39,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988278213] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:21:39,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562998430] [2024-11-09 19:21:39,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:39,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:21:39,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:21:39,856 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) [2024-11-09 19:21:39,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 19:21:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:40,116 INFO L255 TraceCheckSpWp]: Trace formula consists of 1397 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 19:21:40,125 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:21:40,308 INFO L134 CoverageAnalysis]: Checked inductivity of 4049 backedges. 2151 proven. 0 refuted. 0 times theorem prover too weak. 1898 trivial. 0 not checked. [2024-11-09 19:21:40,309 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:21:40,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562998430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:21:40,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:21:40,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-09 19:21:40,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259433067] [2024-11-09 19:21:40,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:21:40,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:21:40,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:21:40,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:21:40,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-09 19:21:40,311 INFO L87 Difference]: Start difference. First operand 12997 states and 22408 transitions. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:41,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:21:41,013 INFO L93 Difference]: Finished difference Result 26556 states and 45786 transitions. [2024-11-09 19:21:41,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:21:41,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 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 1108 [2024-11-09 19:21:41,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:21:41,027 INFO L225 Difference]: With dead ends: 26556 [2024-11-09 19:21:41,028 INFO L226 Difference]: Without dead ends: 13561 [2024-11-09 19:21:41,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1115 GetRequests, 1109 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-09 19:21:41,039 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 226 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:21:41,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 453 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 19:21:41,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13561 states. [2024-11-09 19:21:41,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13561 to 13186. [2024-11-09 19:21:41,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13186 states, 13185 states have (on average 1.7221084565794464) internal successors, (22706), 13185 states have internal predecessors, (22706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:41,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13186 states to 13186 states and 22706 transitions. [2024-11-09 19:21:41,145 INFO L78 Accepts]: Start accepts. Automaton has 13186 states and 22706 transitions. Word has length 1108 [2024-11-09 19:21:41,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:21:41,145 INFO L471 AbstractCegarLoop]: Abstraction has 13186 states and 22706 transitions. [2024-11-09 19:21:41,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:41,145 INFO L276 IsEmpty]: Start isEmpty. Operand 13186 states and 22706 transitions. [2024-11-09 19:21:41,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1172 [2024-11-09 19:21:41,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:21:41,159 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2024-11-09 19:21:41,173 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 19:21:41,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:21:41,364 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:21:41,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:21:41,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1926773449, now seen corresponding path program 1 times [2024-11-09 19:21:41,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:21:41,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016458322] [2024-11-09 19:21:41,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:41,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:21:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:42,045 INFO L134 CoverageAnalysis]: Checked inductivity of 5021 backedges. 2908 proven. 0 refuted. 0 times theorem prover too weak. 2113 trivial. 0 not checked. [2024-11-09 19:21:42,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:21:42,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016458322] [2024-11-09 19:21:42,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016458322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:21:42,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:21:42,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:21:42,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742490743] [2024-11-09 19:21:42,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:21:42,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:21:42,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:21:42,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:21:42,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:21:42,047 INFO L87 Difference]: Start difference. First operand 13186 states and 22706 transitions. Second operand has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:42,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:21:42,718 INFO L93 Difference]: Finished difference Result 27110 states and 46692 transitions. [2024-11-09 19:21:42,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:21:42,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 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 1171 [2024-11-09 19:21:42,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:21:42,729 INFO L225 Difference]: With dead ends: 27110 [2024-11-09 19:21:42,729 INFO L226 Difference]: Without dead ends: 13741 [2024-11-09 19:21:42,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:21:42,737 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 228 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:21:42,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 151 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 19:21:42,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13741 states. [2024-11-09 19:21:42,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13741 to 12446. [2024-11-09 19:21:42,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12446 states, 12445 states have (on average 1.718039373242266) internal successors, (21381), 12445 states have internal predecessors, (21381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:42,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12446 states to 12446 states and 21381 transitions. [2024-11-09 19:21:42,836 INFO L78 Accepts]: Start accepts. Automaton has 12446 states and 21381 transitions. Word has length 1171 [2024-11-09 19:21:42,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:21:42,837 INFO L471 AbstractCegarLoop]: Abstraction has 12446 states and 21381 transitions. [2024-11-09 19:21:42,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:42,837 INFO L276 IsEmpty]: Start isEmpty. Operand 12446 states and 21381 transitions. [2024-11-09 19:21:42,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1246 [2024-11-09 19:21:42,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:21:42,850 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:21:42,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 19:21:42,851 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:21:42,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:21:42,851 INFO L85 PathProgramCache]: Analyzing trace with hash 339091123, now seen corresponding path program 1 times [2024-11-09 19:21:42,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:21:42,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017432167] [2024-11-09 19:21:42,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:42,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:21:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:44,535 INFO L134 CoverageAnalysis]: Checked inductivity of 5813 backedges. 3375 proven. 558 refuted. 0 times theorem prover too weak. 1880 trivial. 0 not checked. [2024-11-09 19:21:44,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:21:44,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017432167] [2024-11-09 19:21:44,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017432167] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:21:44,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362374718] [2024-11-09 19:21:44,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:21:44,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:21:44,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:21:44,537 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) [2024-11-09 19:21:44,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 19:21:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:21:44,818 INFO L255 TraceCheckSpWp]: Trace formula consists of 1580 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 19:21:44,826 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:21:45,011 INFO L134 CoverageAnalysis]: Checked inductivity of 5813 backedges. 3479 proven. 0 refuted. 0 times theorem prover too weak. 2334 trivial. 0 not checked. [2024-11-09 19:21:45,011 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:21:45,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362374718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:21:45,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:21:45,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-09 19:21:45,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036260739] [2024-11-09 19:21:45,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:21:45,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:21:45,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:21:45,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:21:45,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:21:45,013 INFO L87 Difference]: Start difference. First operand 12446 states and 21381 transitions. Second operand has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:45,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:21:45,644 INFO L93 Difference]: Finished difference Result 21360 states and 36705 transitions. [2024-11-09 19:21:45,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:21:45,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 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 1245 [2024-11-09 19:21:45,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:21:45,645 INFO L225 Difference]: With dead ends: 21360 [2024-11-09 19:21:45,645 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 19:21:45,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1250 GetRequests, 1245 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:21:45,652 INFO L432 NwaCegarLoop]: 391 mSDtfsCounter, 217 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:21:45,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 404 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 19:21:45,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 19:21:45,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 19:21:45,653 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) [2024-11-09 19:21:45,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 19:21:45,653 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1245 [2024-11-09 19:21:45,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:21:45,653 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 19:21:45,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:21:45,653 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 19:21:45,654 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 19:21:45,656 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 19:21:45,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 19:21:45,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-09 19:21:45,863 INFO L407 BasicCegarLoop]: Path program 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] [2024-11-09 19:21:45,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 19:21:50,446 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 19:21:50,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:21:50 BoogieIcfgContainer [2024-11-09 19:21:50,465 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 19:21:50,465 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 19:21:50,465 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 19:21:50,466 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 19:21:50,466 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:20:55" (3/4) ... [2024-11-09 19:21:50,471 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 19:21:50,501 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-09 19:21:50,509 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 19:21:50,510 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 19:21:50,511 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 19:21:50,643 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 19:21:50,643 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 19:21:50,644 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 19:21:50,644 INFO L158 Benchmark]: Toolchain (without parser) took 57540.43ms. Allocated memory was 167.8MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 91.6MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 426.8MB. Max. memory is 16.1GB. [2024-11-09 19:21:50,644 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 120.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 19:21:50,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 628.10ms. Allocated memory is still 167.8MB. Free memory was 91.4MB in the beginning and 107.4MB in the end (delta: -16.0MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2024-11-09 19:21:50,645 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.77ms. Allocated memory is still 167.8MB. Free memory was 107.4MB in the beginning and 90.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 19:21:50,645 INFO L158 Benchmark]: Boogie Preprocessor took 126.96ms. Allocated memory is still 167.8MB. Free memory was 90.7MB in the beginning and 66.5MB in the end (delta: 24.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 19:21:50,645 INFO L158 Benchmark]: IcfgBuilder took 1573.96ms. Allocated memory was 167.8MB in the beginning and 243.3MB in the end (delta: 75.5MB). Free memory was 66.5MB in the beginning and 104.5MB in the end (delta: -38.1MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2024-11-09 19:21:50,645 INFO L158 Benchmark]: TraceAbstraction took 54914.20ms. Allocated memory was 243.3MB in the beginning and 2.1GB in the end (delta: 1.8GB). Free memory was 103.5MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-11-09 19:21:50,645 INFO L158 Benchmark]: Witness Printer took 178.22ms. Allocated memory is still 2.1GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 19:21:50,646 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 167.8MB. Free memory is still 120.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 628.10ms. Allocated memory is still 167.8MB. Free memory was 91.4MB in the beginning and 107.4MB in the end (delta: -16.0MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.77ms. Allocated memory is still 167.8MB. Free memory was 107.4MB in the beginning and 90.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 126.96ms. Allocated memory is still 167.8MB. Free memory was 90.7MB in the beginning and 66.5MB in the end (delta: 24.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * IcfgBuilder took 1573.96ms. Allocated memory was 167.8MB in the beginning and 243.3MB in the end (delta: 75.5MB). Free memory was 66.5MB in the beginning and 104.5MB in the end (delta: -38.1MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. * TraceAbstraction took 54914.20ms. Allocated memory was 243.3MB in the beginning and 2.1GB in the end (delta: 1.8GB). Free memory was 103.5MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 178.22ms. Allocated memory is still 2.1GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. 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: 178]: 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, 286 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 50.3s, OverallIterations: 24, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 24.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8345 SdHoareTripleChecker+Valid, 22.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8345 mSDsluCounter, 6079 SdHoareTripleChecker+Invalid, 18.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 625 mSDsCounter, 2742 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25300 IncrementalHoareTripleChecker+Invalid, 28042 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2742 mSolverCounterUnsat, 5454 mSDtfsCounter, 25300 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6546 GetRequests, 6473 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17283occurred in iteration=12, InterpolantAutomatonStates: 88, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.5s AutomataMinimizationTime, 24 MinimizatonAttempts, 25362 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 18.2s InterpolantComputationTime, 16823 NumberOfCodeBlocks, 16823 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 18280 ConstructedInterpolants, 0 QuantifiedInterpolants, 63393 SizeOfPredicates, 8 NumberOfNonLiveVariables, 6454 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 35 InterpolantComputations, 23 PerfectInterpolantSequences, 42875/45789 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: 1044]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-09 19:21:50,691 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