./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label25.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/Problem10_label25.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 699ecca4c05e82af9ddaf76f64fe18abd85263cf30f7f15e631a0ddff4b0faf4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:20:00,894 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:20:00,967 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:20:00,971 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:20:00,971 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:20:00,995 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:20:00,995 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:20:00,996 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:20:00,996 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:20:00,996 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:20:00,997 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:20:00,998 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:20:00,998 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:20:01,002 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:20:01,002 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:20:01,002 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:20:01,003 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:20:01,003 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:20:01,003 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:20:01,003 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:20:01,004 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:20:01,005 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:20:01,005 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:20:01,005 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:20:01,005 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:20:01,006 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:20:01,006 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:20:01,006 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:20:01,006 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:20:01,007 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:20:01,007 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:20:01,007 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:20:01,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:20:01,008 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:20:01,008 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:20:01,008 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:20:01,008 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:20:01,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:20:01,009 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:20:01,009 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:20:01,009 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:20:01,010 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:20:01,010 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 699ecca4c05e82af9ddaf76f64fe18abd85263cf30f7f15e631a0ddff4b0faf4 [2024-11-09 19:20:01,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:20:01,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:20:01,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:20:01,305 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:20:01,306 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:20:01,307 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label25.c [2024-11-09 19:20:02,779 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:20:03,032 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:20:03,033 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label25.c [2024-11-09 19:20:03,065 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f5311c97/e89230e704a54f5284393a77bd35e6c8/FLAGc8caf0332 [2024-11-09 19:20:03,086 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f5311c97/e89230e704a54f5284393a77bd35e6c8 [2024-11-09 19:20:03,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:20:03,092 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:20:03,093 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:20:03,095 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:20:03,101 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:20:03,102 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:20:03" (1/1) ... [2024-11-09 19:20:03,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d87a002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:03, skipping insertion in model container [2024-11-09 19:20:03,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:20:03" (1/1) ... [2024-11-09 19:20:03,155 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:20:03,453 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/Problem10_label25.c[7284,7297] [2024-11-09 19:20:03,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:20:03,600 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:20:03,639 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/Problem10_label25.c[7284,7297] [2024-11-09 19:20:03,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:20:03,731 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:20:03,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:03 WrapperNode [2024-11-09 19:20:03,732 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:20:03,733 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:20:03,734 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:20:03,734 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:20:03,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:03" (1/1) ... [2024-11-09 19:20:03,767 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:03" (1/1) ... [2024-11-09 19:20:03,834 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2024-11-09 19:20:03,835 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:20:03,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:20:03,836 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:20:03,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:20:03,846 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:03" (1/1) ... [2024-11-09 19:20:03,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:03" (1/1) ... [2024-11-09 19:20:03,854 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:03" (1/1) ... [2024-11-09 19:20:03,895 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 19:20:03,896 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:03" (1/1) ... [2024-11-09 19:20:03,897 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:03" (1/1) ... [2024-11-09 19:20:03,924 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:03" (1/1) ... [2024-11-09 19:20:03,928 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:03" (1/1) ... [2024-11-09 19:20:03,932 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:03" (1/1) ... [2024-11-09 19:20:03,936 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:03" (1/1) ... [2024-11-09 19:20:03,946 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:20:03,948 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:20:03,948 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:20:03,948 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:20:03,949 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:03" (1/1) ... [2024-11-09 19:20:03,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:20:03,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:20:03,982 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 19:20:03,985 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 19:20:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:20:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:20:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:20:04,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:20:04,082 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:20:04,083 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:20:05,278 INFO L? ?]: Removed 158 outVars from TransFormulas that were not future-live. [2024-11-09 19:20:05,278 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:20:05,302 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:20:05,303 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:20:05,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:20:05 BoogieIcfgContainer [2024-11-09 19:20:05,304 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:20:05,307 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:20:05,307 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:20:05,310 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:20:05,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:20:03" (1/3) ... [2024-11-09 19:20:05,311 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d0402b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:20:05, skipping insertion in model container [2024-11-09 19:20:05,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:03" (2/3) ... [2024-11-09 19:20:05,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d0402b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:20:05, skipping insertion in model container [2024-11-09 19:20:05,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:20:05" (3/3) ... [2024-11-09 19:20:05,313 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label25.c [2024-11-09 19:20:05,331 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:20:05,331 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:20:05,403 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:20:05,411 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;@2fe0c5a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:20:05,412 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:20:05,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 207 states have (on average 2.033816425120773) internal successors, (421), 208 states have internal predecessors, (421), 0 states have call successors, (0), 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 19:20:05,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 19:20:05,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:05,431 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:20:05,431 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:05,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:05,437 INFO L85 PathProgramCache]: Analyzing trace with hash 2048013921, now seen corresponding path program 1 times [2024-11-09 19:20:05,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:05,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726564011] [2024-11-09 19:20:05,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:05,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:06,070 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 19:20:06,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:06,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726564011] [2024-11-09 19:20:06,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726564011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:06,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:20:06,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:20:06,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33818013] [2024-11-09 19:20:06,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:06,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:20:06,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:06,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:20:06,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:20:06,110 INFO L87 Difference]: Start difference. First operand has 209 states, 207 states have (on average 2.033816425120773) internal successors, (421), 208 states have internal predecessors, (421), 0 states have call successors, (0), 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 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 19:20:07,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:20:07,533 INFO L93 Difference]: Finished difference Result 703 states and 1551 transitions. [2024-11-09 19:20:07,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:20:07,535 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-09 19:20:07,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:20:07,547 INFO L225 Difference]: With dead ends: 703 [2024-11-09 19:20:07,547 INFO L226 Difference]: Without dead ends: 425 [2024-11-09 19:20:07,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:20:07,556 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 648 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 1193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:20:07,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 50 Invalid, 1193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 19:20:07,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-09 19:20:07,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 425. [2024-11-09 19:20:07,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 424 states have (on average 1.903301886792453) internal successors, (807), 424 states have internal predecessors, (807), 0 states have call successors, (0), 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 19:20:07,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 807 transitions. [2024-11-09 19:20:07,620 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 807 transitions. Word has length 66 [2024-11-09 19:20:07,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:20:07,621 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 807 transitions. [2024-11-09 19:20:07,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 19:20:07,621 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 807 transitions. [2024-11-09 19:20:07,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-09 19:20:07,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:07,629 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, 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] [2024-11-09 19:20:07,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:20:07,630 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:07,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:07,630 INFO L85 PathProgramCache]: Analyzing trace with hash 429517357, now seen corresponding path program 1 times [2024-11-09 19:20:07,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:07,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427858951] [2024-11-09 19:20:07,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:07,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:07,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:08,319 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:20:08,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:08,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427858951] [2024-11-09 19:20:08,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427858951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:08,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:20:08,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 19:20:08,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137528205] [2024-11-09 19:20:08,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:08,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 19:20:08,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:08,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 19:20:08,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:20:08,327 INFO L87 Difference]: Start difference. First operand 425 states and 807 transitions. Second operand has 5 states, 5 states have (on average 37.0) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:20:09,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:20:09,072 INFO L93 Difference]: Finished difference Result 708 states and 1388 transitions. [2024-11-09 19:20:09,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:20:09,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2024-11-09 19:20:09,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:20:09,075 INFO L225 Difference]: With dead ends: 708 [2024-11-09 19:20:09,075 INFO L226 Difference]: Without dead ends: 425 [2024-11-09 19:20:09,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:20:09,077 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 310 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:20:09,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 93 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 19:20:09,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-09 19:20:09,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 425. [2024-11-09 19:20:09,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 424 states have (on average 1.8915094339622642) internal successors, (802), 424 states have internal predecessors, (802), 0 states have call successors, (0), 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 19:20:09,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 802 transitions. [2024-11-09 19:20:09,106 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 802 transitions. Word has length 185 [2024-11-09 19:20:09,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:20:09,107 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 802 transitions. [2024-11-09 19:20:09,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:20:09,108 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 802 transitions. [2024-11-09 19:20:09,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-09 19:20:09,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:09,116 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:20:09,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:20:09,117 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:09,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:09,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1411730627, now seen corresponding path program 1 times [2024-11-09 19:20:09,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:09,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139566456] [2024-11-09 19:20:09,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:09,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:20:09,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:09,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139566456] [2024-11-09 19:20:09,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139566456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:09,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:20:09,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:20:09,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918328932] [2024-11-09 19:20:09,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:09,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:20:09,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:09,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:20:09,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:09,376 INFO L87 Difference]: Start difference. First operand 425 states and 802 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 19:20:09,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:20:09,945 INFO L93 Difference]: Finished difference Result 988 states and 1962 transitions. [2024-11-09 19:20:09,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:20:09,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2024-11-09 19:20:09,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:20:09,949 INFO L225 Difference]: With dead ends: 988 [2024-11-09 19:20:09,949 INFO L226 Difference]: Without dead ends: 705 [2024-11-09 19:20:09,950 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 19:20:09,951 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 140 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:20:09,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 294 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 19:20:09,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-11-09 19:20:09,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 565. [2024-11-09 19:20:09,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 564 states have (on average 1.8191489361702127) internal successors, (1026), 564 states have internal predecessors, (1026), 0 states have call successors, (0), 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 19:20:09,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 1026 transitions. [2024-11-09 19:20:09,979 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 1026 transitions. Word has length 212 [2024-11-09 19:20:09,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:20:09,979 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 1026 transitions. [2024-11-09 19:20:09,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 19:20:09,980 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 1026 transitions. [2024-11-09 19:20:09,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-09 19:20:09,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:09,983 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:20:09,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:20:09,983 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:09,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:09,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1615123847, now seen corresponding path program 1 times [2024-11-09 19:20:09,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:09,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830932308] [2024-11-09 19:20:09,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:09,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:10,460 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 19:20:10,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:10,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830932308] [2024-11-09 19:20:10,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830932308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:10,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:20:10,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 19:20:10,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873980058] [2024-11-09 19:20:10,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:10,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 19:20:10,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:10,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 19:20:10,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:20:10,464 INFO L87 Difference]: Start difference. First operand 565 states and 1026 transitions. Second operand has 7 states, 7 states have (on average 30.714285714285715) internal successors, (215), 6 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:20:11,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:20:11,235 INFO L93 Difference]: Finished difference Result 1044 states and 1887 transitions. [2024-11-09 19:20:11,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 19:20:11,236 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.714285714285715) internal successors, (215), 6 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221 [2024-11-09 19:20:11,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:20:11,239 INFO L225 Difference]: With dead ends: 1044 [2024-11-09 19:20:11,239 INFO L226 Difference]: Without dead ends: 565 [2024-11-09 19:20:11,240 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:20:11,241 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 217 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:20:11,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 41 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 19:20:11,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-09 19:20:11,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 565. [2024-11-09 19:20:11,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 564 states have (on average 1.8138297872340425) internal successors, (1023), 564 states have internal predecessors, (1023), 0 states have call successors, (0), 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 19:20:11,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 1023 transitions. [2024-11-09 19:20:11,253 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 1023 transitions. Word has length 221 [2024-11-09 19:20:11,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:20:11,254 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 1023 transitions. [2024-11-09 19:20:11,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.714285714285715) internal successors, (215), 6 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:20:11,254 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 1023 transitions. [2024-11-09 19:20:11,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-09 19:20:11,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:11,257 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:11,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:20:11,257 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:11,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:11,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1017562637, now seen corresponding path program 1 times [2024-11-09 19:20:11,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:11,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38852013] [2024-11-09 19:20:11,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:11,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:11,481 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:20:11,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:11,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38852013] [2024-11-09 19:20:11,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38852013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:11,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:20:11,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:20:11,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461619182] [2024-11-09 19:20:11,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:11,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:20:11,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:11,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:20:11,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:11,484 INFO L87 Difference]: Start difference. First operand 565 states and 1023 transitions. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 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 19:20:12,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:20:12,071 INFO L93 Difference]: Finished difference Result 1128 states and 2114 transitions. [2024-11-09 19:20:12,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:20:12,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 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 257 [2024-11-09 19:20:12,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:20:12,086 INFO L225 Difference]: With dead ends: 1128 [2024-11-09 19:20:12,086 INFO L226 Difference]: Without dead ends: 705 [2024-11-09 19:20:12,087 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 19:20:12,088 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 152 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:20:12,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 266 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 19:20:12,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-11-09 19:20:12,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 705. [2024-11-09 19:20:12,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 704 states have (on average 1.7514204545454546) internal successors, (1233), 704 states have internal predecessors, (1233), 0 states have call successors, (0), 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 19:20:12,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 1233 transitions. [2024-11-09 19:20:12,107 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 1233 transitions. Word has length 257 [2024-11-09 19:20:12,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:20:12,107 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 1233 transitions. [2024-11-09 19:20:12,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 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 19:20:12,108 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 1233 transitions. [2024-11-09 19:20:12,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-09 19:20:12,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:12,113 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:12,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:20:12,113 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:12,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:12,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1031105533, now seen corresponding path program 1 times [2024-11-09 19:20:12,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:12,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321500990] [2024-11-09 19:20:12,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:12,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:12,385 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-09 19:20:12,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:12,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321500990] [2024-11-09 19:20:12,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321500990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:12,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:20:12,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:20:12,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717079803] [2024-11-09 19:20:12,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:12,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:20:12,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:12,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:20:12,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:12,389 INFO L87 Difference]: Start difference. First operand 705 states and 1233 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 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 19:20:13,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:20:13,009 INFO L93 Difference]: Finished difference Result 1408 states and 2534 transitions. [2024-11-09 19:20:13,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:20:13,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 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 276 [2024-11-09 19:20:13,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:20:13,016 INFO L225 Difference]: With dead ends: 1408 [2024-11-09 19:20:13,016 INFO L226 Difference]: Without dead ends: 845 [2024-11-09 19:20:13,018 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 19:20:13,019 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 87 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:20:13,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 81 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 19:20:13,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-11-09 19:20:13,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845. [2024-11-09 19:20:13,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 844 states have (on average 1.7369668246445498) internal successors, (1466), 844 states have internal predecessors, (1466), 0 states have call successors, (0), 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 19:20:13,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1466 transitions. [2024-11-09 19:20:13,041 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1466 transitions. Word has length 276 [2024-11-09 19:20:13,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:20:13,042 INFO L471 AbstractCegarLoop]: Abstraction has 845 states and 1466 transitions. [2024-11-09 19:20:13,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 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 19:20:13,042 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1466 transitions. [2024-11-09 19:20:13,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-11-09 19:20:13,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:13,046 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:20:13,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:20:13,047 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:13,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:13,047 INFO L85 PathProgramCache]: Analyzing trace with hash 387006341, now seen corresponding path program 1 times [2024-11-09 19:20:13,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:13,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762068370] [2024-11-09 19:20:13,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:13,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:13,318 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-09 19:20:13,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:13,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762068370] [2024-11-09 19:20:13,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762068370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:13,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:20:13,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:20:13,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101077871] [2024-11-09 19:20:13,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:13,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:20:13,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:13,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:20:13,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:13,322 INFO L87 Difference]: Start difference. First operand 845 states and 1466 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 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 19:20:13,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:20:13,881 INFO L93 Difference]: Finished difference Result 1828 states and 3194 transitions. [2024-11-09 19:20:13,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:20:13,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 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 316 [2024-11-09 19:20:13,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:20:13,886 INFO L225 Difference]: With dead ends: 1828 [2024-11-09 19:20:13,886 INFO L226 Difference]: Without dead ends: 1125 [2024-11-09 19:20:13,887 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 19:20:13,889 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 121 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:20:13,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 37 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 19:20:13,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2024-11-09 19:20:13,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 1125. [2024-11-09 19:20:13,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 1124 states have (on average 1.666370106761566) internal successors, (1873), 1124 states have internal predecessors, (1873), 0 states have call successors, (0), 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 19:20:13,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1873 transitions. [2024-11-09 19:20:13,911 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1873 transitions. Word has length 316 [2024-11-09 19:20:13,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:20:13,911 INFO L471 AbstractCegarLoop]: Abstraction has 1125 states and 1873 transitions. [2024-11-09 19:20:13,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 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 19:20:13,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1873 transitions. [2024-11-09 19:20:13,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2024-11-09 19:20:13,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:13,917 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:20:13,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:20:13,917 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:13,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:13,918 INFO L85 PathProgramCache]: Analyzing trace with hash -966571697, now seen corresponding path program 1 times [2024-11-09 19:20:13,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:13,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748931323] [2024-11-09 19:20:13,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:13,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:14,491 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 262 proven. 151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:20:14,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:14,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748931323] [2024-11-09 19:20:14,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748931323] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:20:14,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028932189] [2024-11-09 19:20:14,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:14,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:20:14,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:20:14,495 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 19:20:14,496 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 19:20:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:14,641 INFO L255 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:20:14,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:20:14,849 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-09 19:20:14,849 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:20:14,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028932189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:14,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:20:14,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-09 19:20:14,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255339240] [2024-11-09 19:20:14,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:14,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:20:14,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:14,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:20:14,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:20:14,852 INFO L87 Difference]: Start difference. First operand 1125 states and 1873 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 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 19:20:15,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:20:15,482 INFO L93 Difference]: Finished difference Result 2248 states and 3789 transitions. [2024-11-09 19:20:15,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:20:15,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 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 331 [2024-11-09 19:20:15,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:20:15,493 INFO L225 Difference]: With dead ends: 2248 [2024-11-09 19:20:15,493 INFO L226 Difference]: Without dead ends: 1265 [2024-11-09 19:20:15,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:20:15,496 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 162 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:20:15,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 22 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 19:20:15,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2024-11-09 19:20:15,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2024-11-09 19:20:15,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1264 states have (on average 1.6819620253164558) internal successors, (2126), 1264 states have internal predecessors, (2126), 0 states have call successors, (0), 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 19:20:15,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2126 transitions. [2024-11-09 19:20:15,519 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2126 transitions. Word has length 331 [2024-11-09 19:20:15,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:20:15,520 INFO L471 AbstractCegarLoop]: Abstraction has 1265 states and 2126 transitions. [2024-11-09 19:20:15,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 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 19:20:15,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2126 transitions. [2024-11-09 19:20:15,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-09 19:20:15,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:15,526 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, 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, 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] [2024-11-09 19:20:15,544 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 19:20:15,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:20:15,731 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:15,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:15,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1924958739, now seen corresponding path program 1 times [2024-11-09 19:20:15,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:15,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872854524] [2024-11-09 19:20:15,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:15,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:16,078 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-09 19:20:16,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:16,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872854524] [2024-11-09 19:20:16,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872854524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:16,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:20:16,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:20:16,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893703448] [2024-11-09 19:20:16,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:16,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:20:16,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:16,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:20:16,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:16,084 INFO L87 Difference]: Start difference. First operand 1265 states and 2126 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:20:16,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:20:16,648 INFO L93 Difference]: Finished difference Result 3508 states and 5936 transitions. [2024-11-09 19:20:16,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:20:16,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 341 [2024-11-09 19:20:16,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:20:16,657 INFO L225 Difference]: With dead ends: 3508 [2024-11-09 19:20:16,657 INFO L226 Difference]: Without dead ends: 2385 [2024-11-09 19:20:16,659 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 19:20:16,660 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 154 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:20:16,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 55 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 19:20:16,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2024-11-09 19:20:16,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 1825. [2024-11-09 19:20:16,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1825 states, 1824 states have (on average 1.6913377192982457) internal successors, (3085), 1824 states have internal predecessors, (3085), 0 states have call successors, (0), 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 19:20:16,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1825 states to 1825 states and 3085 transitions. [2024-11-09 19:20:16,698 INFO L78 Accepts]: Start accepts. Automaton has 1825 states and 3085 transitions. Word has length 341 [2024-11-09 19:20:16,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:20:16,699 INFO L471 AbstractCegarLoop]: Abstraction has 1825 states and 3085 transitions. [2024-11-09 19:20:16,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:20:16,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1825 states and 3085 transitions. [2024-11-09 19:20:16,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2024-11-09 19:20:16,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:16,703 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:20:16,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:20:16,704 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:16,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:16,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1745804317, now seen corresponding path program 1 times [2024-11-09 19:20:16,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:16,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782652665] [2024-11-09 19:20:16,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:16,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:17,254 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-11-09 19:20:17,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:17,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782652665] [2024-11-09 19:20:17,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782652665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:17,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:20:17,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:20:17,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554772430] [2024-11-09 19:20:17,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:17,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:20:17,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:17,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:20:17,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:20:17,257 INFO L87 Difference]: Start difference. First operand 1825 states and 3085 transitions. Second operand has 4 states, 4 states have (on average 47.0) 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 19:20:17,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:20:17,732 INFO L93 Difference]: Finished difference Result 3380 states and 5733 transitions. [2024-11-09 19:20:17,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:20:17,733 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) 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 375 [2024-11-09 19:20:17,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:20:17,733 INFO L225 Difference]: With dead ends: 3380 [2024-11-09 19:20:17,734 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 19:20:17,736 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 19:20:17,737 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 167 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:20:17,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 15 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 19:20:17,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 19:20:17,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 19:20:17,739 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 19:20:17,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 19:20:17,739 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 375 [2024-11-09 19:20:17,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:20:17,739 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 19:20:17,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) 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 19:20:17,740 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 19:20:17,740 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 19:20:17,743 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 19:20:17,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 19:20:17,746 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:20:17,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 19:20:17,895 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 19:20:17,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:20:17 BoogieIcfgContainer [2024-11-09 19:20:17,905 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 19:20:17,906 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 19:20:17,906 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 19:20:17,906 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 19:20:17,906 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:20:05" (3/4) ... [2024-11-09 19:20:17,909 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 19:20:17,930 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-09 19:20:17,935 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 19:20:17,936 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 19:20:17,937 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 19:20:18,065 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 19:20:18,066 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 19:20:18,066 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 19:20:18,067 INFO L158 Benchmark]: Toolchain (without parser) took 14975.08ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 68.6MB in the beginning and 274.0MB in the end (delta: -205.4MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2024-11-09 19:20:18,067 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 92.8MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 19:20:18,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 639.62ms. Allocated memory was 142.6MB in the beginning and 197.1MB in the end (delta: 54.5MB). Free memory was 68.3MB in the beginning and 151.5MB in the end (delta: -83.2MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2024-11-09 19:20:18,067 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.99ms. Allocated memory is still 197.1MB. Free memory was 151.5MB in the beginning and 143.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 19:20:18,067 INFO L158 Benchmark]: Boogie Preprocessor took 111.11ms. Allocated memory is still 197.1MB. Free memory was 143.1MB in the beginning and 133.6MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 19:20:18,068 INFO L158 Benchmark]: IcfgBuilder took 1356.37ms. Allocated memory is still 197.1MB. Free memory was 133.6MB in the beginning and 124.2MB in the end (delta: 9.4MB). Peak memory consumption was 88.1MB. Max. memory is 16.1GB. [2024-11-09 19:20:18,068 INFO L158 Benchmark]: TraceAbstraction took 12598.53ms. Allocated memory was 197.1MB in the beginning and 360.7MB in the end (delta: 163.6MB). Free memory was 123.1MB in the beginning and 287.6MB in the end (delta: -164.5MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2024-11-09 19:20:18,068 INFO L158 Benchmark]: Witness Printer took 160.45ms. Allocated memory is still 360.7MB. Free memory was 287.6MB in the beginning and 274.0MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 19:20:18,070 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 92.8MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 639.62ms. Allocated memory was 142.6MB in the beginning and 197.1MB in the end (delta: 54.5MB). Free memory was 68.3MB in the beginning and 151.5MB in the end (delta: -83.2MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.99ms. Allocated memory is still 197.1MB. Free memory was 151.5MB in the beginning and 143.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 111.11ms. Allocated memory is still 197.1MB. Free memory was 143.1MB in the beginning and 133.6MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * IcfgBuilder took 1356.37ms. Allocated memory is still 197.1MB. Free memory was 133.6MB in the beginning and 124.2MB in the end (delta: 9.4MB). Peak memory consumption was 88.1MB. Max. memory is 16.1GB. * TraceAbstraction took 12598.53ms. Allocated memory was 197.1MB in the beginning and 360.7MB in the end (delta: 163.6MB). Free memory was 123.1MB in the beginning and 287.6MB in the end (delta: -164.5MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. * Witness Printer took 160.45ms. Allocated memory is still 360.7MB. Free memory was 287.6MB in the beginning and 274.0MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. 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: 206]: 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, 209 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.4s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2158 SdHoareTripleChecker+Valid, 6.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2158 mSDsluCounter, 954 SdHoareTripleChecker+Invalid, 5.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 97 mSDsCounter, 712 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6526 IncrementalHoareTripleChecker+Invalid, 7238 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 712 mSolverCounterUnsat, 857 mSDtfsCounter, 6526 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 366 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1825occurred in iteration=9, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 700 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 2911 NumberOfCodeBlocks, 2911 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2900 ConstructedInterpolants, 0 QuantifiedInterpolants, 11049 SizeOfPredicates, 0 NumberOfNonLiveVariables, 458 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 2659/2810 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: 592]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-09 19:20:18,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE