./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label01.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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/Problem01_label01.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 f974ef5ae084ca735facbee0c59fc65e3f1da96ae509150f8b1cec197fdee20c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 09:36:35,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 09:36:35,415 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 09:36:35,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 09:36:35,419 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 09:36:35,452 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 09:36:35,452 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 09:36:35,453 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 09:36:35,453 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 09:36:35,454 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 09:36:35,454 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 09:36:35,454 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 09:36:35,455 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 09:36:35,455 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 09:36:35,456 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 09:36:35,456 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 09:36:35,456 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 09:36:35,457 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 09:36:35,457 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 09:36:35,457 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 09:36:35,458 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 09:36:35,458 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 09:36:35,459 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 09:36:35,459 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 09:36:35,459 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 09:36:35,460 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 09:36:35,460 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 09:36:35,460 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 09:36:35,461 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 09:36:35,461 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 09:36:35,461 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 09:36:35,461 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 09:36:35,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 09:36:35,462 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 09:36:35,462 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 09:36:35,462 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 09:36:35,463 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 09:36:35,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 09:36:35,463 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 09:36:35,463 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 09:36:35,464 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 09:36:35,465 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 09:36:35,465 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f974ef5ae084ca735facbee0c59fc65e3f1da96ae509150f8b1cec197fdee20c [2024-11-18 09:36:35,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 09:36:35,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 09:36:35,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 09:36:35,747 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 09:36:35,748 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 09:36:35,749 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label01.c [2024-11-18 09:36:37,104 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 09:36:37,382 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 09:36:37,383 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label01.c [2024-11-18 09:36:37,403 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afdfa790b/eb24ff4f54284f9cbd6cd2505900ecba/FLAGf38b92c28 [2024-11-18 09:36:37,416 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afdfa790b/eb24ff4f54284f9cbd6cd2505900ecba [2024-11-18 09:36:37,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 09:36:37,420 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 09:36:37,422 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 09:36:37,423 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 09:36:37,428 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 09:36:37,429 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:36:37" (1/1) ... [2024-11-18 09:36:37,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24773084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:37, skipping insertion in model container [2024-11-18 09:36:37,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:36:37" (1/1) ... [2024-11-18 09:36:37,474 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 09:36:37,811 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/Problem01_label01.c[16869,16882] [2024-11-18 09:36:37,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 09:36:37,869 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 09:36:37,961 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/Problem01_label01.c[16869,16882] [2024-11-18 09:36:37,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 09:36:38,004 INFO L204 MainTranslator]: Completed translation [2024-11-18 09:36:38,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:38 WrapperNode [2024-11-18 09:36:38,005 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 09:36:38,006 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 09:36:38,006 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 09:36:38,006 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 09:36:38,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:38" (1/1) ... [2024-11-18 09:36:38,031 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:38" (1/1) ... [2024-11-18 09:36:38,077 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 658 [2024-11-18 09:36:38,078 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 09:36:38,078 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 09:36:38,078 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 09:36:38,079 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 09:36:38,091 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:38" (1/1) ... [2024-11-18 09:36:38,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:38" (1/1) ... [2024-11-18 09:36:38,096 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:38" (1/1) ... [2024-11-18 09:36:38,126 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]. [2024-11-18 09:36:38,129 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:38" (1/1) ... [2024-11-18 09:36:38,130 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:38" (1/1) ... [2024-11-18 09:36:38,158 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:38" (1/1) ... [2024-11-18 09:36:38,168 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:38" (1/1) ... [2024-11-18 09:36:38,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:38" (1/1) ... [2024-11-18 09:36:38,191 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:38" (1/1) ... [2024-11-18 09:36:38,199 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 09:36:38,201 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 09:36:38,201 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 09:36:38,201 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 09:36:38,202 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:38" (1/1) ... [2024-11-18 09:36:38,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 09:36:38,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 09:36:38,240 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) [2024-11-18 09:36:38,247 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 [2024-11-18 09:36:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 09:36:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 09:36:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 09:36:38,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 09:36:38,366 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 09:36:38,368 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 09:36:39,373 INFO L? ?]: Removed 75 outVars from TransFormulas that were not future-live. [2024-11-18 09:36:39,373 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 09:36:39,396 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 09:36:39,398 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 09:36:39,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:36:39 BoogieIcfgContainer [2024-11-18 09:36:39,398 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 09:36:39,401 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 09:36:39,402 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 09:36:39,405 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 09:36:39,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:36:37" (1/3) ... [2024-11-18 09:36:39,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572956d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:36:39, skipping insertion in model container [2024-11-18 09:36:39,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:38" (2/3) ... [2024-11-18 09:36:39,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572956d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:36:39, skipping insertion in model container [2024-11-18 09:36:39,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:36:39" (3/3) ... [2024-11-18 09:36:39,409 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label01.c [2024-11-18 09:36:39,426 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 09:36:39,426 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 09:36:39,505 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 09:36:39,511 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;@1881faeb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 09:36:39,514 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 09:36:39,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:39,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-18 09:36:39,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:39,533 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 09:36:39,534 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:39,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:39,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1687716446, now seen corresponding path program 1 times [2024-11-18 09:36:39,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:39,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596626855] [2024-11-18 09:36:39,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:39,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:40,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 09:36:40,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:40,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596626855] [2024-11-18 09:36:40,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596626855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:40,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 09:36:40,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 09:36:40,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438472387] [2024-11-18 09:36:40,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:40,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 09:36:40,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:40,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 09:36:40,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 09:36:40,117 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:40,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:40,806 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2024-11-18 09:36:40,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 09:36:40,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2024-11-18 09:36:40,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:40,821 INFO L225 Difference]: With dead ends: 528 [2024-11-18 09:36:40,821 INFO L226 Difference]: Without dead ends: 266 [2024-11-18 09:36:40,827 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 [2024-11-18 09:36:40,832 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 104 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:40,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 44 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 09:36:40,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-18 09:36:40,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2024-11-18 09:36:40,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4792452830188678) internal successors, (392), 265 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:40,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 392 transitions. [2024-11-18 09:36:40,881 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 392 transitions. Word has length 91 [2024-11-18 09:36:40,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:40,882 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 392 transitions. [2024-11-18 09:36:40,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:40,882 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 392 transitions. [2024-11-18 09:36:40,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-18 09:36:40,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:40,885 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 09:36:40,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 09:36:40,886 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:40,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:40,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1583336838, now seen corresponding path program 1 times [2024-11-18 09:36:40,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:40,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299390865] [2024-11-18 09:36:40,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:40,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:40,994 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 09:36:40,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:40,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299390865] [2024-11-18 09:36:40,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299390865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:40,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 09:36:40,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 09:36:40,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843070621] [2024-11-18 09:36:40,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:40,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 09:36:40,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:40,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 09:36:40,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 09:36:40,999 INFO L87 Difference]: Start difference. First operand 266 states and 392 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:41,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:41,417 INFO L93 Difference]: Finished difference Result 792 states and 1171 transitions. [2024-11-18 09:36:41,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 09:36:41,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-11-18 09:36:41,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:41,422 INFO L225 Difference]: With dead ends: 792 [2024-11-18 09:36:41,422 INFO L226 Difference]: Without dead ends: 528 [2024-11-18 09:36:41,423 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 [2024-11-18 09:36:41,424 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 172 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:41,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 29 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 09:36:41,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-18 09:36:41,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2024-11-18 09:36:41,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.413662239089184) internal successors, (745), 527 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:41,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 745 transitions. [2024-11-18 09:36:41,475 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 745 transitions. Word has length 96 [2024-11-18 09:36:41,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:41,475 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 745 transitions. [2024-11-18 09:36:41,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:41,476 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 745 transitions. [2024-11-18 09:36:41,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-18 09:36:41,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:41,479 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 09:36:41,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 09:36:41,480 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:41,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:41,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1155104639, now seen corresponding path program 1 times [2024-11-18 09:36:41,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:41,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303637111] [2024-11-18 09:36:41,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:41,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:41,737 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 09:36:41,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:41,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303637111] [2024-11-18 09:36:41,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303637111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:41,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 09:36:41,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 09:36:41,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527298356] [2024-11-18 09:36:41,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:41,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 09:36:41,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:41,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 09:36:41,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 09:36:41,745 INFO L87 Difference]: Start difference. First operand 528 states and 745 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:42,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:42,122 INFO L93 Difference]: Finished difference Result 1447 states and 2032 transitions. [2024-11-18 09:36:42,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 09:36:42,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2024-11-18 09:36:42,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:42,126 INFO L225 Difference]: With dead ends: 1447 [2024-11-18 09:36:42,126 INFO L226 Difference]: Without dead ends: 921 [2024-11-18 09:36:42,127 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 [2024-11-18 09:36:42,128 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 123 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:42,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 55 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 09:36:42,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2024-11-18 09:36:42,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2024-11-18 09:36:42,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.2902173913043478) internal successors, (1187), 920 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:42,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1187 transitions. [2024-11-18 09:36:42,156 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1187 transitions. Word has length 106 [2024-11-18 09:36:42,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:42,156 INFO L471 AbstractCegarLoop]: Abstraction has 921 states and 1187 transitions. [2024-11-18 09:36:42,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:42,156 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1187 transitions. [2024-11-18 09:36:42,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-18 09:36:42,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:42,163 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 09:36:42,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 09:36:42,164 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:42,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:42,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1102812047, now seen corresponding path program 1 times [2024-11-18 09:36:42,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:42,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981398410] [2024-11-18 09:36:42,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:42,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:42,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:42,360 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-18 09:36:42,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:42,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981398410] [2024-11-18 09:36:42,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981398410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:42,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 09:36:42,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 09:36:42,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343790370] [2024-11-18 09:36:42,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:42,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 09:36:42,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:42,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 09:36:42,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 09:36:42,365 INFO L87 Difference]: Start difference. First operand 921 states and 1187 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:42,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:42,746 INFO L93 Difference]: Finished difference Result 2102 states and 2725 transitions. [2024-11-18 09:36:42,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 09:36:42,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 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 107 [2024-11-18 09:36:42,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:42,750 INFO L225 Difference]: With dead ends: 2102 [2024-11-18 09:36:42,750 INFO L226 Difference]: Without dead ends: 1183 [2024-11-18 09:36:42,751 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 [2024-11-18 09:36:42,752 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 132 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:42,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 60 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 09:36:42,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2024-11-18 09:36:42,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2024-11-18 09:36:42,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.252115059221658) internal successors, (1480), 1182 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:42,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1480 transitions. [2024-11-18 09:36:42,771 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1480 transitions. Word has length 107 [2024-11-18 09:36:42,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:42,771 INFO L471 AbstractCegarLoop]: Abstraction has 1183 states and 1480 transitions. [2024-11-18 09:36:42,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:42,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1480 transitions. [2024-11-18 09:36:42,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-18 09:36:42,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:42,773 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 09:36:42,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 09:36:42,774 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:42,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:42,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1216032841, now seen corresponding path program 1 times [2024-11-18 09:36:42,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:42,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194568364] [2024-11-18 09:36:42,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:42,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:43,013 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 09:36:43,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:43,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194568364] [2024-11-18 09:36:43,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194568364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:43,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 09:36:43,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 09:36:43,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589621694] [2024-11-18 09:36:43,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:43,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 09:36:43,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:43,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 09:36:43,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 09:36:43,021 INFO L87 Difference]: Start difference. First operand 1183 states and 1480 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:43,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:43,609 INFO L93 Difference]: Finished difference Result 2888 states and 3590 transitions. [2024-11-18 09:36:43,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 09:36:43,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-11-18 09:36:43,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:43,615 INFO L225 Difference]: With dead ends: 2888 [2024-11-18 09:36:43,616 INFO L226 Difference]: Without dead ends: 1707 [2024-11-18 09:36:43,617 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 [2024-11-18 09:36:43,618 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 382 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:43,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 58 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 09:36:43,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2024-11-18 09:36:43,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1576. [2024-11-18 09:36:43,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 1.231111111111111) internal successors, (1939), 1575 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:43,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1939 transitions. [2024-11-18 09:36:43,648 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1939 transitions. Word has length 110 [2024-11-18 09:36:43,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:43,649 INFO L471 AbstractCegarLoop]: Abstraction has 1576 states and 1939 transitions. [2024-11-18 09:36:43,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:43,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1939 transitions. [2024-11-18 09:36:43,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-18 09:36:43,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:43,652 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 09:36:43,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 09:36:43,652 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:43,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:43,652 INFO L85 PathProgramCache]: Analyzing trace with hash -368839722, now seen corresponding path program 1 times [2024-11-18 09:36:43,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:43,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253049735] [2024-11-18 09:36:43,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:43,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:43,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:43,756 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 09:36:43,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:43,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253049735] [2024-11-18 09:36:43,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253049735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:43,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 09:36:43,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 09:36:43,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815538695] [2024-11-18 09:36:43,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:43,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 09:36:43,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:43,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 09:36:43,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 09:36:43,761 INFO L87 Difference]: Start difference. First operand 1576 states and 1939 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:44,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:44,148 INFO L93 Difference]: Finished difference Result 1840 states and 2250 transitions. [2024-11-18 09:36:44,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 09:36:44,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2024-11-18 09:36:44,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:44,155 INFO L225 Difference]: With dead ends: 1840 [2024-11-18 09:36:44,155 INFO L226 Difference]: Without dead ends: 1838 [2024-11-18 09:36:44,155 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 [2024-11-18 09:36:44,156 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 65 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:44,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 31 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 09:36:44,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2024-11-18 09:36:44,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1445. [2024-11-18 09:36:44,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.2458448753462603) internal successors, (1799), 1444 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:44,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1799 transitions. [2024-11-18 09:36:44,183 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1799 transitions. Word has length 128 [2024-11-18 09:36:44,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:44,184 INFO L471 AbstractCegarLoop]: Abstraction has 1445 states and 1799 transitions. [2024-11-18 09:36:44,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:44,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1799 transitions. [2024-11-18 09:36:44,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-18 09:36:44,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:44,188 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 09:36:44,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 09:36:44,188 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:44,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:44,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1922353074, now seen corresponding path program 1 times [2024-11-18 09:36:44,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:44,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211771509] [2024-11-18 09:36:44,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:44,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:44,418 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-18 09:36:44,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:44,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211771509] [2024-11-18 09:36:44,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211771509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:44,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 09:36:44,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 09:36:44,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74871778] [2024-11-18 09:36:44,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:44,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 09:36:44,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:44,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 09:36:44,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 09:36:44,422 INFO L87 Difference]: Start difference. First operand 1445 states and 1799 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:45,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:45,071 INFO L93 Difference]: Finished difference Result 3281 states and 4085 transitions. [2024-11-18 09:36:45,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 09:36:45,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 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 183 [2024-11-18 09:36:45,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:45,076 INFO L225 Difference]: With dead ends: 3281 [2024-11-18 09:36:45,077 INFO L226 Difference]: Without dead ends: 1838 [2024-11-18 09:36:45,079 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 [2024-11-18 09:36:45,079 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 228 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:45,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 57 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 09:36:45,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2024-11-18 09:36:45,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1707. [2024-11-18 09:36:45,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1706 states have (on average 1.194021101992966) internal successors, (2037), 1706 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:45,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2037 transitions. [2024-11-18 09:36:45,108 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2037 transitions. Word has length 183 [2024-11-18 09:36:45,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:45,109 INFO L471 AbstractCegarLoop]: Abstraction has 1707 states and 2037 transitions. [2024-11-18 09:36:45,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:45,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2037 transitions. [2024-11-18 09:36:45,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-18 09:36:45,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:45,113 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 09:36:45,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 09:36:45,114 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:45,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:45,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1252808211, now seen corresponding path program 1 times [2024-11-18 09:36:45,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:45,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502609010] [2024-11-18 09:36:45,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:45,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:45,446 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 138 proven. 11 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-18 09:36:45,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:45,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502609010] [2024-11-18 09:36:45,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502609010] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 09:36:45,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030955012] [2024-11-18 09:36:45,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:45,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 09:36:45,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 09:36:45,450 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) [2024-11-18 09:36:45,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 09:36:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:45,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 09:36:45,585 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 09:36:45,802 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-18 09:36:45,803 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 09:36:45,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030955012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:45,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 09:36:45,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-18 09:36:45,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189955672] [2024-11-18 09:36:45,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:45,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 09:36:45,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:45,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 09:36:45,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 09:36:45,805 INFO L87 Difference]: Start difference. First operand 1707 states and 2037 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:46,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:46,208 INFO L93 Difference]: Finished difference Result 3410 states and 4071 transitions. [2024-11-18 09:36:46,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 09:36:46,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2024-11-18 09:36:46,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:46,210 INFO L225 Difference]: With dead ends: 3410 [2024-11-18 09:36:46,210 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 09:36:46,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 09:36:46,213 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 47 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:46,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 190 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 09:36:46,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 09:36:46,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 09:36:46,214 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) [2024-11-18 09:36:46,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 09:36:46,215 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 196 [2024-11-18 09:36:46,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:46,215 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 09:36:46,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 09:36:46,215 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 09:36:46,215 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 09:36:46,218 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 09:36:46,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 09:36:46,419 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 [2024-11-18 09:36:46,422 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 09:36:46,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 09:36:46,541 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 09:36:46,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:36:46 BoogieIcfgContainer [2024-11-18 09:36:46,560 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 09:36:46,561 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 09:36:46,561 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 09:36:46,561 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 09:36:46,562 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:36:39" (3/4) ... [2024-11-18 09:36:46,565 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 09:36:46,585 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-18 09:36:46,586 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-18 09:36:46,587 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-18 09:36:46,591 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 09:36:46,728 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 09:36:46,728 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 09:36:46,728 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 09:36:46,729 INFO L158 Benchmark]: Toolchain (without parser) took 9309.22ms. Allocated memory was 184.5MB in the beginning and 251.7MB in the end (delta: 67.1MB). Free memory was 116.5MB in the beginning and 174.4MB in the end (delta: -57.9MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2024-11-18 09:36:46,729 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 09:36:46,730 INFO L158 Benchmark]: CACSL2BoogieTranslator took 582.58ms. Allocated memory is still 184.5MB. Free memory was 116.3MB in the beginning and 143.5MB in the end (delta: -27.2MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2024-11-18 09:36:46,732 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.97ms. Allocated memory is still 184.5MB. Free memory was 143.5MB in the beginning and 137.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 09:36:46,732 INFO L158 Benchmark]: Boogie Preprocessor took 121.42ms. Allocated memory is still 184.5MB. Free memory was 137.2MB in the beginning and 131.6MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 09:36:46,732 INFO L158 Benchmark]: RCFGBuilder took 1197.76ms. Allocated memory is still 184.5MB. Free memory was 131.6MB in the beginning and 142.1MB in the end (delta: -10.4MB). Peak memory consumption was 87.1MB. Max. memory is 16.1GB. [2024-11-18 09:36:46,733 INFO L158 Benchmark]: TraceAbstraction took 7159.18ms. Allocated memory was 184.5MB in the beginning and 251.7MB in the end (delta: 67.1MB). Free memory was 142.1MB in the beginning and 187.0MB in the end (delta: -44.9MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-11-18 09:36:46,733 INFO L158 Benchmark]: Witness Printer took 167.51ms. Allocated memory is still 251.7MB. Free memory was 187.0MB in the beginning and 174.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-18 09:36:46,734 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 582.58ms. Allocated memory is still 184.5MB. Free memory was 116.3MB in the beginning and 143.5MB in the end (delta: -27.2MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.97ms. Allocated memory is still 184.5MB. Free memory was 143.5MB in the beginning and 137.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 121.42ms. Allocated memory is still 184.5MB. Free memory was 137.2MB in the beginning and 131.6MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1197.76ms. Allocated memory is still 184.5MB. Free memory was 131.6MB in the beginning and 142.1MB in the end (delta: -10.4MB). Peak memory consumption was 87.1MB. Max. memory is 16.1GB. * TraceAbstraction took 7159.18ms. Allocated memory was 184.5MB in the beginning and 251.7MB in the end (delta: 67.1MB). Free memory was 142.1MB in the beginning and 187.0MB in the end (delta: -44.9MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * Witness Printer took 167.51ms. Allocated memory is still 251.7MB. Free memory was 187.0MB in the beginning and 174.4MB in the end (delta: 12.6MB). 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: 459]: 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, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.9s, OverallIterations: 8, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1253 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1253 mSDsluCounter, 524 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 47 mSDsCounter, 629 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3170 IncrementalHoareTripleChecker+Invalid, 3799 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 629 mSolverCounterUnsat, 477 mSDtfsCounter, 3170 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 216 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1707occurred in iteration=7, InterpolantAutomatonStates: 26, 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, 8 MinimizatonAttempts, 655 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1213 NumberOfCodeBlocks, 1213 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1204 ConstructedInterpolants, 0 QuantifiedInterpolants, 2672 SizeOfPredicates, 0 NumberOfNonLiveVariables, 404 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 691/702 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: 593]: Loop Invariant Derived loop invariant: (((((a21 == 1) && (a16 <= 5)) || ((a21 <= 0) && (a20 == 1))) || ((a7 != 1) && (a21 == 1))) || (((a21 <= 0) && (a17 == 1)) && (a16 <= 5))) RESULT: Ultimate proved your program to be correct! [2024-11-18 09:36:46,765 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