./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem11_label04.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 1108eeb4bd20019b014e3c74d7da568cbd9d144764ba0dc8eabd0c3ee1f98907 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:48:39,023 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:48:39,092 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:48:39,107 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:48:39,108 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:48:39,129 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:48:39,130 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:48:39,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:48:39,131 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:48:39,132 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:48:39,132 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:48:39,132 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:48:39,133 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:48:39,133 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:48:39,134 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:48:39,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:48:39,135 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:48:39,135 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:48:39,135 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:48:39,135 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:48:39,135 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:48:39,139 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:48:39,139 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:48:39,139 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:48:39,139 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:48:39,139 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:48:39,139 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:48:39,140 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:48:39,140 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:48:39,140 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:48:39,140 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:48:39,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:48:39,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:48:39,141 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:48:39,141 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:48:39,141 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:48:39,141 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:48:39,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:48:39,141 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:48:39,142 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:48:39,142 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:48:39,142 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:48:39,142 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1108eeb4bd20019b014e3c74d7da568cbd9d144764ba0dc8eabd0c3ee1f98907 [2024-11-16 03:48:39,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:48:39,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:48:39,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:48:39,354 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:48:39,354 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:48:39,355 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label04.c [2024-11-16 03:48:39,917 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:48:41,635 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:48:41,636 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label04.c [2024-11-16 03:48:41,648 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23ae431b9/bb0cdaaa868142a5b66245d85766f975/FLAGda742985f [2024-11-16 03:48:41,667 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23ae431b9/bb0cdaaa868142a5b66245d85766f975 [2024-11-16 03:48:41,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:48:41,671 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:48:41,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:48:41,672 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:48:41,676 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:48:41,677 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:48:41" (1/1) ... [2024-11-16 03:48:41,678 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3029b2f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:41, skipping insertion in model container [2024-11-16 03:48:41,678 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:48:41" (1/1) ... [2024-11-16 03:48:41,720 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:48:41,916 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label04.c[7746,7759] [2024-11-16 03:48:42,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:48:42,119 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:48:42,148 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label04.c[7746,7759] [2024-11-16 03:48:42,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:48:42,257 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:48:42,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:42 WrapperNode [2024-11-16 03:48:42,258 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:48:42,259 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:48:42,259 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:48:42,260 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:48:42,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:42" (1/1) ... [2024-11-16 03:48:42,288 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:42" (1/1) ... [2024-11-16 03:48:42,361 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2024-11-16 03:48:42,362 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:48:42,362 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:48:42,362 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:48:42,363 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:48:42,370 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:42" (1/1) ... [2024-11-16 03:48:42,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:42" (1/1) ... [2024-11-16 03:48:42,378 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:42" (1/1) ... [2024-11-16 03:48:42,420 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]. [2024-11-16 03:48:42,420 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:42" (1/1) ... [2024-11-16 03:48:42,420 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:42" (1/1) ... [2024-11-16 03:48:42,457 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:42" (1/1) ... [2024-11-16 03:48:42,461 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:42" (1/1) ... [2024-11-16 03:48:42,476 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:42" (1/1) ... [2024-11-16 03:48:42,484 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:42" (1/1) ... [2024-11-16 03:48:42,494 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:48:42,496 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:48:42,496 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:48:42,496 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:48:42,497 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:42" (1/1) ... [2024-11-16 03:48:42,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:48:42,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:48:42,529 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) [2024-11-16 03:48:42,536 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 [2024-11-16 03:48:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:48:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:48:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:48:42,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:48:42,652 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:48:42,655 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:48:43,844 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-11-16 03:48:43,844 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:48:43,862 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:48:43,865 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:48:43,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:48:43 BoogieIcfgContainer [2024-11-16 03:48:43,865 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:48:43,867 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:48:43,868 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:48:43,871 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:48:43,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:48:41" (1/3) ... [2024-11-16 03:48:43,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c03f6ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:48:43, skipping insertion in model container [2024-11-16 03:48:43,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:42" (2/3) ... [2024-11-16 03:48:43,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c03f6ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:48:43, skipping insertion in model container [2024-11-16 03:48:43,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:48:43" (3/3) ... [2024-11-16 03:48:43,873 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label04.c [2024-11-16 03:48:43,886 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:48:43,886 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:48:43,941 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:48:43,947 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;@36732b7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:48:43,947 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:48:43,952 INFO L276 IsEmpty]: Start isEmpty. Operand has 286 states, 284 states have (on average 1.7077464788732395) internal successors, (485), 285 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:43,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-16 03:48:43,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:43,960 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:43,960 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:43,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:43,964 INFO L85 PathProgramCache]: Analyzing trace with hash 2040998898, now seen corresponding path program 1 times [2024-11-16 03:48:43,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:43,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102192197] [2024-11-16 03:48:43,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:43,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:44,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:48:44,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:44,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102192197] [2024-11-16 03:48:44,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102192197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:44,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:44,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:48:44,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83338784] [2024-11-16 03:48:44,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:44,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:44,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:44,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:44,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:44,380 INFO L87 Difference]: Start difference. First operand has 286 states, 284 states have (on average 1.7077464788732395) internal successors, (485), 285 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:45,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:45,355 INFO L93 Difference]: Finished difference Result 767 states and 1351 transitions. [2024-11-16 03:48:45,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:45,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-16 03:48:45,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:45,366 INFO L225 Difference]: With dead ends: 767 [2024-11-16 03:48:45,367 INFO L226 Difference]: Without dead ends: 416 [2024-11-16 03:48:45,369 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 [2024-11-16 03:48:45,372 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 175 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:45,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 227 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 03:48:45,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-16 03:48:45,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2024-11-16 03:48:45,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 415 states have (on average 1.4506024096385541) internal successors, (602), 415 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:45,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 602 transitions. [2024-11-16 03:48:45,419 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 602 transitions. Word has length 55 [2024-11-16 03:48:45,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:45,420 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 602 transitions. [2024-11-16 03:48:45,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:45,420 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 602 transitions. [2024-11-16 03:48:45,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 03:48:45,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:45,424 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:45,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:48:45,425 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:45,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:45,425 INFO L85 PathProgramCache]: Analyzing trace with hash -2136174401, now seen corresponding path program 1 times [2024-11-16 03:48:45,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:45,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675809764] [2024-11-16 03:48:45,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:45,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:45,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:45,628 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:48:45,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:45,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675809764] [2024-11-16 03:48:45,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675809764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:45,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:45,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:48:45,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511147441] [2024-11-16 03:48:45,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:45,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:45,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:45,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:45,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:45,634 INFO L87 Difference]: Start difference. First operand 416 states and 602 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:46,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:46,320 INFO L93 Difference]: Finished difference Result 1219 states and 1771 transitions. [2024-11-16 03:48:46,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:46,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-16 03:48:46,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:46,324 INFO L225 Difference]: With dead ends: 1219 [2024-11-16 03:48:46,324 INFO L226 Difference]: Without dead ends: 805 [2024-11-16 03:48:46,325 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 [2024-11-16 03:48:46,326 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 145 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:46,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 122 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:48:46,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2024-11-16 03:48:46,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 794. [2024-11-16 03:48:46,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 1.373266078184111) internal successors, (1089), 793 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:46,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1089 transitions. [2024-11-16 03:48:46,349 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1089 transitions. Word has length 124 [2024-11-16 03:48:46,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:46,349 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1089 transitions. [2024-11-16 03:48:46,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:46,350 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1089 transitions. [2024-11-16 03:48:46,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 03:48:46,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:46,353 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:46,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:48:46,353 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:46,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:46,354 INFO L85 PathProgramCache]: Analyzing trace with hash -389425533, now seen corresponding path program 1 times [2024-11-16 03:48:46,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:46,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233527704] [2024-11-16 03:48:46,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:46,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:46,672 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:48:46,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:46,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233527704] [2024-11-16 03:48:46,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233527704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:46,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:46,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:46,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133769514] [2024-11-16 03:48:46,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:46,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:48:46,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:46,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:48:46,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:48:46,674 INFO L87 Difference]: Start difference. First operand 794 states and 1089 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:47,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:47,745 INFO L93 Difference]: Finished difference Result 2520 states and 3443 transitions. [2024-11-16 03:48:47,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:48:47,745 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-11-16 03:48:47,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:47,755 INFO L225 Difference]: With dead ends: 2520 [2024-11-16 03:48:47,755 INFO L226 Difference]: Without dead ends: 1728 [2024-11-16 03:48:47,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:48:47,757 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 488 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:47,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 225 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 03:48:47,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2024-11-16 03:48:47,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1724. [2024-11-16 03:48:47,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1724 states, 1723 states have (on average 1.2251886244921648) internal successors, (2111), 1723 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:47,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 2111 transitions. [2024-11-16 03:48:47,811 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 2111 transitions. Word has length 125 [2024-11-16 03:48:47,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:47,812 INFO L471 AbstractCegarLoop]: Abstraction has 1724 states and 2111 transitions. [2024-11-16 03:48:47,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:47,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 2111 transitions. [2024-11-16 03:48:47,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-16 03:48:47,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:47,817 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:47,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:48:47,817 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:47,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:47,818 INFO L85 PathProgramCache]: Analyzing trace with hash 388416461, now seen corresponding path program 1 times [2024-11-16 03:48:47,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:47,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187622982] [2024-11-16 03:48:47,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:47,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:47,957 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:48:47,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:47,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187622982] [2024-11-16 03:48:47,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187622982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:47,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:47,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:47,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636438586] [2024-11-16 03:48:47,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:47,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:47,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:47,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:47,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:47,960 INFO L87 Difference]: Start difference. First operand 1724 states and 2111 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:48,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:48,537 INFO L93 Difference]: Finished difference Result 4028 states and 5071 transitions. [2024-11-16 03:48:48,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:48,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 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 [2024-11-16 03:48:48,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:48,544 INFO L225 Difference]: With dead ends: 4028 [2024-11-16 03:48:48,544 INFO L226 Difference]: Without dead ends: 2491 [2024-11-16 03:48:48,546 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 [2024-11-16 03:48:48,546 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 182 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:48,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 327 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:48:48,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2024-11-16 03:48:48,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 2488. [2024-11-16 03:48:48,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2488 states, 2487 states have (on average 1.2295938882187374) internal successors, (3058), 2487 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:48,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3058 transitions. [2024-11-16 03:48:48,577 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3058 transitions. Word has length 183 [2024-11-16 03:48:48,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:48,578 INFO L471 AbstractCegarLoop]: Abstraction has 2488 states and 3058 transitions. [2024-11-16 03:48:48,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:48,579 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3058 transitions. [2024-11-16 03:48:48,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-16 03:48:48,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:48,582 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:48,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:48:48,583 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:48,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:48,583 INFO L85 PathProgramCache]: Analyzing trace with hash -638127398, now seen corresponding path program 1 times [2024-11-16 03:48:48,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:48,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091407258] [2024-11-16 03:48:48,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:48,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:48,760 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 171 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:48:48,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:48,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091407258] [2024-11-16 03:48:48,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091407258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:48,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:48,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:48,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862694578] [2024-11-16 03:48:48,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:48,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:48,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:48,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:48,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:48,763 INFO L87 Difference]: Start difference. First operand 2488 states and 3058 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:49,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:49,365 INFO L93 Difference]: Finished difference Result 5918 states and 7383 transitions. [2024-11-16 03:48:49,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:49,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 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 237 [2024-11-16 03:48:49,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:49,375 INFO L225 Difference]: With dead ends: 5918 [2024-11-16 03:48:49,375 INFO L226 Difference]: Without dead ends: 3617 [2024-11-16 03:48:49,378 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 [2024-11-16 03:48:49,379 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 136 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:49,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 344 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:48:49,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3617 states. [2024-11-16 03:48:49,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3617 to 3416. [2024-11-16 03:48:49,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3416 states, 3415 states have (on average 1.2093704245973647) internal successors, (4130), 3415 states have internal predecessors, (4130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:49,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3416 states to 3416 states and 4130 transitions. [2024-11-16 03:48:49,425 INFO L78 Accepts]: Start accepts. Automaton has 3416 states and 4130 transitions. Word has length 237 [2024-11-16 03:48:49,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:49,425 INFO L471 AbstractCegarLoop]: Abstraction has 3416 states and 4130 transitions. [2024-11-16 03:48:49,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:49,426 INFO L276 IsEmpty]: Start isEmpty. Operand 3416 states and 4130 transitions. [2024-11-16 03:48:49,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-16 03:48:49,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:49,451 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:49,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:48:49,451 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:49,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:49,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1194608696, now seen corresponding path program 1 times [2024-11-16 03:48:49,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:49,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838048090] [2024-11-16 03:48:49,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:49,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:49,675 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-16 03:48:49,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:49,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838048090] [2024-11-16 03:48:49,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838048090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:49,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:49,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:49,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506568806] [2024-11-16 03:48:49,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:49,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:49,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:49,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:49,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:49,678 INFO L87 Difference]: Start difference. First operand 3416 states and 4130 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:50,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:50,304 INFO L93 Difference]: Finished difference Result 8682 states and 10616 transitions. [2024-11-16 03:48:50,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:50,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2024-11-16 03:48:50,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:50,318 INFO L225 Difference]: With dead ends: 8682 [2024-11-16 03:48:50,318 INFO L226 Difference]: Without dead ends: 5268 [2024-11-16 03:48:50,322 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 [2024-11-16 03:48:50,323 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 186 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:50,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 134 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:48:50,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5268 states. [2024-11-16 03:48:50,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5268 to 5083. [2024-11-16 03:48:50,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5083 states, 5082 states have (on average 1.1855568673750492) internal successors, (6025), 5082 states have internal predecessors, (6025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:50,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5083 states to 5083 states and 6025 transitions. [2024-11-16 03:48:50,414 INFO L78 Accepts]: Start accepts. Automaton has 5083 states and 6025 transitions. Word has length 238 [2024-11-16 03:48:50,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:50,415 INFO L471 AbstractCegarLoop]: Abstraction has 5083 states and 6025 transitions. [2024-11-16 03:48:50,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:50,415 INFO L276 IsEmpty]: Start isEmpty. Operand 5083 states and 6025 transitions. [2024-11-16 03:48:50,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-16 03:48:50,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:50,418 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:50,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:48:50,418 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:50,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:50,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1115691761, now seen corresponding path program 1 times [2024-11-16 03:48:50,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:50,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119766954] [2024-11-16 03:48:50,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:50,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:50,625 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-16 03:48:50,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:50,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119766954] [2024-11-16 03:48:50,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119766954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:50,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:50,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:50,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556177889] [2024-11-16 03:48:50,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:50,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:50,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:50,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:50,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:50,628 INFO L87 Difference]: Start difference. First operand 5083 states and 6025 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:51,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:51,227 INFO L93 Difference]: Finished difference Result 11295 states and 13437 transitions. [2024-11-16 03:48:51,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:51,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 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 259 [2024-11-16 03:48:51,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:51,242 INFO L225 Difference]: With dead ends: 11295 [2024-11-16 03:48:51,242 INFO L226 Difference]: Without dead ends: 6214 [2024-11-16 03:48:51,247 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 [2024-11-16 03:48:51,248 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 149 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:51,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 193 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:48:51,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6214 states. [2024-11-16 03:48:51,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6214 to 6008. [2024-11-16 03:48:51,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6008 states, 6007 states have (on average 1.1849508906276012) internal successors, (7118), 6007 states have internal predecessors, (7118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:51,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6008 states to 6008 states and 7118 transitions. [2024-11-16 03:48:51,337 INFO L78 Accepts]: Start accepts. Automaton has 6008 states and 7118 transitions. Word has length 259 [2024-11-16 03:48:51,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:51,338 INFO L471 AbstractCegarLoop]: Abstraction has 6008 states and 7118 transitions. [2024-11-16 03:48:51,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:51,338 INFO L276 IsEmpty]: Start isEmpty. Operand 6008 states and 7118 transitions. [2024-11-16 03:48:51,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-16 03:48:51,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:51,341 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:51,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:48:51,342 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:51,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:51,342 INFO L85 PathProgramCache]: Analyzing trace with hash -499938191, now seen corresponding path program 1 times [2024-11-16 03:48:51,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:51,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218526092] [2024-11-16 03:48:51,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:51,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:51,815 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 57 proven. 122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:48:51,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:51,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218526092] [2024-11-16 03:48:51,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218526092] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:48:51,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343606988] [2024-11-16 03:48:51,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:51,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:48:51,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:48:51,824 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) [2024-11-16 03:48:51,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 03:48:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:51,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:48:51,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:48:52,038 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-16 03:48:52,038 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:48:52,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343606988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:52,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:48:52,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-16 03:48:52,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838323517] [2024-11-16 03:48:52,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:52,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:52,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:52,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:52,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 03:48:52,041 INFO L87 Difference]: Start difference. First operand 6008 states and 7118 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:52,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:52,774 INFO L93 Difference]: Finished difference Result 13133 states and 15711 transitions. [2024-11-16 03:48:52,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:52,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 276 [2024-11-16 03:48:52,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:52,793 INFO L225 Difference]: With dead ends: 13133 [2024-11-16 03:48:52,794 INFO L226 Difference]: Without dead ends: 7127 [2024-11-16 03:48:52,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 03:48:52,800 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 148 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:52,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 382 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:48:52,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7127 states. [2024-11-16 03:48:52,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7127 to 6932. [2024-11-16 03:48:52,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6932 states, 6931 states have (on average 1.1800605973164047) internal successors, (8179), 6931 states have internal predecessors, (8179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:52,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6932 states to 6932 states and 8179 transitions. [2024-11-16 03:48:52,907 INFO L78 Accepts]: Start accepts. Automaton has 6932 states and 8179 transitions. Word has length 276 [2024-11-16 03:48:52,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:52,907 INFO L471 AbstractCegarLoop]: Abstraction has 6932 states and 8179 transitions. [2024-11-16 03:48:52,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:52,908 INFO L276 IsEmpty]: Start isEmpty. Operand 6932 states and 8179 transitions. [2024-11-16 03:48:52,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-11-16 03:48:52,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:52,915 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:52,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 03:48:53,119 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 [2024-11-16 03:48:53,120 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:53,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:53,121 INFO L85 PathProgramCache]: Analyzing trace with hash 377684822, now seen corresponding path program 1 times [2024-11-16 03:48:53,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:53,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971786875] [2024-11-16 03:48:53,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:53,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:53,263 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-16 03:48:53,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:53,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971786875] [2024-11-16 03:48:53,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971786875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:53,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:53,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:53,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100887815] [2024-11-16 03:48:53,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:53,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:53,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:53,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:53,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:53,265 INFO L87 Difference]: Start difference. First operand 6932 states and 8179 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:53,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:53,788 INFO L93 Difference]: Finished difference Result 13464 states and 15856 transitions. [2024-11-16 03:48:53,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:53,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 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 337 [2024-11-16 03:48:53,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:53,798 INFO L225 Difference]: With dead ends: 13464 [2024-11-16 03:48:53,798 INFO L226 Difference]: Without dead ends: 6534 [2024-11-16 03:48:53,803 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 [2024-11-16 03:48:53,804 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 164 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:53,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 152 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:48:53,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6534 states. [2024-11-16 03:48:53,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6534 to 5792. [2024-11-16 03:48:53,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5792 states, 5791 states have (on average 1.1384907615265067) internal successors, (6593), 5791 states have internal predecessors, (6593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:53,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5792 states to 5792 states and 6593 transitions. [2024-11-16 03:48:53,908 INFO L78 Accepts]: Start accepts. Automaton has 5792 states and 6593 transitions. Word has length 337 [2024-11-16 03:48:53,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:53,909 INFO L471 AbstractCegarLoop]: Abstraction has 5792 states and 6593 transitions. [2024-11-16 03:48:53,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:53,909 INFO L276 IsEmpty]: Start isEmpty. Operand 5792 states and 6593 transitions. [2024-11-16 03:48:53,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-11-16 03:48:53,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:53,914 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:48:53,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:48:53,914 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:53,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:53,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1284684887, now seen corresponding path program 1 times [2024-11-16 03:48:53,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:53,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600067950] [2024-11-16 03:48:53,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:53,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:53,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:54,139 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-16 03:48:54,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:54,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600067950] [2024-11-16 03:48:54,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600067950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:54,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:54,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:48:54,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192088133] [2024-11-16 03:48:54,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:54,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:54,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:54,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:54,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:54,141 INFO L87 Difference]: Start difference. First operand 5792 states and 6593 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 2 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:54,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:54,558 INFO L93 Difference]: Finished difference Result 11577 states and 13179 transitions. [2024-11-16 03:48:54,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:54,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 2 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 339 [2024-11-16 03:48:54,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:54,571 INFO L225 Difference]: With dead ends: 11577 [2024-11-16 03:48:54,571 INFO L226 Difference]: Without dead ends: 5787 [2024-11-16 03:48:54,575 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 [2024-11-16 03:48:54,575 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 190 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:54,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 42 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:48:54,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5787 states. [2024-11-16 03:48:54,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5787 to 5787. [2024-11-16 03:48:54,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5787 states, 5786 states have (on average 1.1377462841341168) internal successors, (6583), 5786 states have internal predecessors, (6583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:54,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5787 states to 5787 states and 6583 transitions. [2024-11-16 03:48:54,613 INFO L78 Accepts]: Start accepts. Automaton has 5787 states and 6583 transitions. Word has length 339 [2024-11-16 03:48:54,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:54,613 INFO L471 AbstractCegarLoop]: Abstraction has 5787 states and 6583 transitions. [2024-11-16 03:48:54,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 2 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:54,613 INFO L276 IsEmpty]: Start isEmpty. Operand 5787 states and 6583 transitions. [2024-11-16 03:48:54,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2024-11-16 03:48:54,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:54,618 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:48:54,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 03:48:54,619 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:54,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:54,619 INFO L85 PathProgramCache]: Analyzing trace with hash 188019236, now seen corresponding path program 1 times [2024-11-16 03:48:54,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:54,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996875326] [2024-11-16 03:48:54,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:54,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:54,980 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 29 proven. 74 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-16 03:48:54,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:54,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996875326] [2024-11-16 03:48:54,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996875326] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:48:54,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618836670] [2024-11-16 03:48:54,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:54,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:48:54,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:48:54,982 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:48:54,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 03:48:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:55,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:48:55,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:48:55,152 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-16 03:48:55,152 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:48:55,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618836670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:55,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:48:55,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 03:48:55,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977517035] [2024-11-16 03:48:55,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:55,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:55,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:55,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:55,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:48:55,154 INFO L87 Difference]: Start difference. First operand 5787 states and 6583 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:55,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:55,763 INFO L93 Difference]: Finished difference Result 13239 states and 15210 transitions. [2024-11-16 03:48:55,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:55,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 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 340 [2024-11-16 03:48:55,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:55,772 INFO L225 Difference]: With dead ends: 13239 [2024-11-16 03:48:55,772 INFO L226 Difference]: Without dead ends: 7454 [2024-11-16 03:48:55,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:48:55,776 INFO L432 NwaCegarLoop]: 343 mSDtfsCounter, 142 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:55,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 370 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:48:55,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7454 states. [2024-11-16 03:48:55,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7454 to 6896. [2024-11-16 03:48:55,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6896 states, 6895 states have (on average 1.1258883248730964) internal successors, (7763), 6895 states have internal predecessors, (7763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:55,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6896 states to 6896 states and 7763 transitions. [2024-11-16 03:48:55,823 INFO L78 Accepts]: Start accepts. Automaton has 6896 states and 7763 transitions. Word has length 340 [2024-11-16 03:48:55,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:55,823 INFO L471 AbstractCegarLoop]: Abstraction has 6896 states and 7763 transitions. [2024-11-16 03:48:55,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:55,824 INFO L276 IsEmpty]: Start isEmpty. Operand 6896 states and 7763 transitions. [2024-11-16 03:48:55,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2024-11-16 03:48:55,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:55,830 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 03:48:55,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 03:48:56,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-16 03:48:56,034 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:56,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:56,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1821031113, now seen corresponding path program 1 times [2024-11-16 03:48:56,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:56,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419445977] [2024-11-16 03:48:56,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:56,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:56,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:56,395 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 155 proven. 175 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-16 03:48:56,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:56,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419445977] [2024-11-16 03:48:56,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419445977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:48:56,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681630365] [2024-11-16 03:48:56,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:56,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:48:56,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:48:56,397 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:48:56,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 03:48:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:56,521 INFO L255 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 03:48:56,525 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:48:56,730 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-16 03:48:56,730 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:48:56,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681630365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:56,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:48:56,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 03:48:56,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759913967] [2024-11-16 03:48:56,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:56,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:56,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:56,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:56,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:48:56,732 INFO L87 Difference]: Start difference. First operand 6896 states and 7763 transitions. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:57,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:57,266 INFO L93 Difference]: Finished difference Result 13791 states and 15526 transitions. [2024-11-16 03:48:57,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:57,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 360 [2024-11-16 03:48:57,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:57,275 INFO L225 Difference]: With dead ends: 13791 [2024-11-16 03:48:57,275 INFO L226 Difference]: Without dead ends: 6897 [2024-11-16 03:48:57,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:48:57,281 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 109 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:57,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 368 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:48:57,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6897 states. [2024-11-16 03:48:57,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6897 to 6897. [2024-11-16 03:48:57,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6897 states, 6896 states have (on average 1.1197795823665893) internal successors, (7722), 6896 states have internal predecessors, (7722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:57,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6897 states to 6897 states and 7722 transitions. [2024-11-16 03:48:57,343 INFO L78 Accepts]: Start accepts. Automaton has 6897 states and 7722 transitions. Word has length 360 [2024-11-16 03:48:57,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:57,344 INFO L471 AbstractCegarLoop]: Abstraction has 6897 states and 7722 transitions. [2024-11-16 03:48:57,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:57,344 INFO L276 IsEmpty]: Start isEmpty. Operand 6897 states and 7722 transitions. [2024-11-16 03:48:57,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-16 03:48:57,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:57,352 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:57,367 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 03:48:57,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:48:57,553 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:57,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:57,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1874735447, now seen corresponding path program 1 times [2024-11-16 03:48:57,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:57,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477784002] [2024-11-16 03:48:57,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:57,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:57,805 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-16 03:48:57,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:57,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477784002] [2024-11-16 03:48:57,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477784002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:57,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:57,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:57,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669243115] [2024-11-16 03:48:57,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:57,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:48:57,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:57,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:48:57,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:48:57,809 INFO L87 Difference]: Start difference. First operand 6897 states and 7722 transitions. Second operand has 4 states, 4 states have (on average 86.0) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:58,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:58,720 INFO L93 Difference]: Finished difference Result 18803 states and 21051 transitions. [2024-11-16 03:48:58,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:48:58,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.0) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 395 [2024-11-16 03:48:58,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:58,732 INFO L225 Difference]: With dead ends: 18803 [2024-11-16 03:48:58,733 INFO L226 Difference]: Without dead ends: 11723 [2024-11-16 03:48:58,740 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 [2024-11-16 03:48:58,741 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 208 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:58,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 71 Invalid, 1185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:48:58,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11723 states. [2024-11-16 03:48:58,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11723 to 11164. [2024-11-16 03:48:58,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11164 states, 11163 states have (on average 1.1193227626981994) internal successors, (12495), 11163 states have internal predecessors, (12495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:58,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11164 states to 11164 states and 12495 transitions. [2024-11-16 03:48:58,841 INFO L78 Accepts]: Start accepts. Automaton has 11164 states and 12495 transitions. Word has length 395 [2024-11-16 03:48:58,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:58,841 INFO L471 AbstractCegarLoop]: Abstraction has 11164 states and 12495 transitions. [2024-11-16 03:48:58,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.0) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:58,842 INFO L276 IsEmpty]: Start isEmpty. Operand 11164 states and 12495 transitions. [2024-11-16 03:48:58,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2024-11-16 03:48:58,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:58,850 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:58,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 03:48:58,851 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:58,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:58,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1617550831, now seen corresponding path program 1 times [2024-11-16 03:48:58,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:58,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94533758] [2024-11-16 03:48:58,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:58,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:59,103 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-11-16 03:48:59,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:59,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94533758] [2024-11-16 03:48:59,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94533758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:59,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:59,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:59,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946190451] [2024-11-16 03:48:59,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:59,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:59,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:59,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:59,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:59,105 INFO L87 Difference]: Start difference. First operand 11164 states and 12495 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:59,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:59,701 INFO L93 Difference]: Finished difference Result 22140 states and 24737 transitions. [2024-11-16 03:48:59,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:59,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 398 [2024-11-16 03:48:59,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:59,702 INFO L225 Difference]: With dead ends: 22140 [2024-11-16 03:48:59,702 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 03:48:59,713 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 [2024-11-16 03:48:59,715 INFO L432 NwaCegarLoop]: 328 mSDtfsCounter, 142 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:59,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 345 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:48:59,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 03:48:59,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 03:48:59,719 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) [2024-11-16 03:48:59,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 03:48:59,719 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 398 [2024-11-16 03:48:59,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:59,720 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 03:48:59,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:59,720 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 03:48:59,720 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 03:48:59,722 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 03:48:59,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 03:48:59,726 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:59,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 03:49:00,300 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 03:49:00,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 03:49:00 BoogieIcfgContainer [2024-11-16 03:49:00,310 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 03:49:00,311 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 03:49:00,311 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 03:49:00,311 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 03:49:00,311 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:48:43" (3/4) ... [2024-11-16 03:49:00,313 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 03:49:00,339 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-16 03:49:00,340 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 03:49:00,341 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 03:49:00,342 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 03:49:00,464 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 03:49:00,465 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 03:49:00,465 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 03:49:00,466 INFO L158 Benchmark]: Toolchain (without parser) took 18794.98ms. Allocated memory was 224.4MB in the beginning and 612.4MB in the end (delta: 388.0MB). Free memory was 142.8MB in the beginning and 396.5MB in the end (delta: -253.7MB). Peak memory consumption was 135.2MB. Max. memory is 16.1GB. [2024-11-16 03:49:00,466 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 03:49:00,466 INFO L158 Benchmark]: CACSL2BoogieTranslator took 586.99ms. Allocated memory is still 224.4MB. Free memory was 142.5MB in the beginning and 165.4MB in the end (delta: -22.9MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2024-11-16 03:49:00,466 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.92ms. Allocated memory is still 224.4MB. Free memory was 165.4MB in the beginning and 147.8MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-16 03:49:00,466 INFO L158 Benchmark]: Boogie Preprocessor took 132.13ms. Allocated memory is still 224.4MB. Free memory was 147.8MB in the beginning and 123.5MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-16 03:49:00,466 INFO L158 Benchmark]: IcfgBuilder took 1370.22ms. Allocated memory is still 224.4MB. Free memory was 123.5MB in the beginning and 151.5MB in the end (delta: -28.1MB). Peak memory consumption was 71.4MB. Max. memory is 16.1GB. [2024-11-16 03:49:00,467 INFO L158 Benchmark]: TraceAbstraction took 16443.22ms. Allocated memory was 224.4MB in the beginning and 612.4MB in the end (delta: 388.0MB). Free memory was 150.5MB in the beginning and 414.3MB in the end (delta: -263.8MB). Peak memory consumption was 339.1MB. Max. memory is 16.1GB. [2024-11-16 03:49:00,467 INFO L158 Benchmark]: Witness Printer took 154.32ms. Allocated memory is still 612.4MB. Free memory was 414.3MB in the beginning and 396.5MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-16 03:49:00,468 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 586.99ms. Allocated memory is still 224.4MB. Free memory was 142.5MB in the beginning and 165.4MB in the end (delta: -22.9MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.92ms. Allocated memory is still 224.4MB. Free memory was 165.4MB in the beginning and 147.8MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 132.13ms. Allocated memory is still 224.4MB. Free memory was 147.8MB in the beginning and 123.5MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * IcfgBuilder took 1370.22ms. Allocated memory is still 224.4MB. Free memory was 123.5MB in the beginning and 151.5MB in the end (delta: -28.1MB). Peak memory consumption was 71.4MB. Max. memory is 16.1GB. * TraceAbstraction took 16443.22ms. Allocated memory was 224.4MB in the beginning and 612.4MB in the end (delta: 388.0MB). Free memory was 150.5MB in the beginning and 414.3MB in the end (delta: -263.8MB). Peak memory consumption was 339.1MB. Max. memory is 16.1GB. * Witness Printer took 154.32ms. Allocated memory is still 612.4MB. Free memory was 414.3MB in the beginning and 396.5MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. 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: 175]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 286 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.8s, OverallIterations: 14, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 9.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2564 SdHoareTripleChecker+Valid, 8.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2564 mSDsluCounter, 3302 SdHoareTripleChecker+Invalid, 7.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 359 mSDsCounter, 1409 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8458 IncrementalHoareTripleChecker+Invalid, 9867 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1409 mSolverCounterUnsat, 2943 mSDtfsCounter, 8458 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1018 GetRequests, 990 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11164occurred in iteration=13, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 2664 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 4642 NumberOfCodeBlocks, 4642 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 4625 ConstructedInterpolants, 0 QuantifiedInterpolants, 16061 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1332 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 17 InterpolantComputations, 14 PerfectInterpolantSequences, 3511/3882 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 03:49:00,502 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE