./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label59.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label59.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 86b33a3328c808cec34f54492a07e8640c009630cc5a59a5959b66da0514436c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 10:38:45,472 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 10:38:45,582 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 10:38:45,585 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 10:38:45,586 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 10:38:45,629 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 10:38:45,633 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 10:38:45,633 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 10:38:45,634 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 10:38:45,634 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 10:38:45,634 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 10:38:45,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 10:38:45,635 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 10:38:45,635 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 10:38:45,635 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 10:38:45,636 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 10:38:45,636 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 10:38:45,641 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 10:38:45,641 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 10:38:45,642 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 10:38:45,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 10:38:45,645 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 10:38:45,645 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 10:38:45,645 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 10:38:45,645 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 10:38:45,646 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 10:38:45,646 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 10:38:45,646 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 10:38:45,646 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 10:38:45,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 10:38:45,646 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 10:38:45,647 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 10:38:45,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 10:38:45,647 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 10:38:45,647 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 10:38:45,647 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 10:38:45,647 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 10:38:45,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 10:38:45,648 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 10:38:45,648 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 10:38:45,653 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 10:38:45,654 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 10:38:45,654 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86b33a3328c808cec34f54492a07e8640c009630cc5a59a5959b66da0514436c [2024-11-18 10:38:46,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 10:38:46,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 10:38:46,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 10:38:46,126 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 10:38:46,127 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 10:38:46,128 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label59.c [2024-11-18 10:38:48,075 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 10:38:48,478 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 10:38:48,479 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label59.c [2024-11-18 10:38:48,510 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59cd728e5/6f70c9fe3efe444eb4ffe168c4106756/FLAG11916e073 [2024-11-18 10:38:48,539 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59cd728e5/6f70c9fe3efe444eb4ffe168c4106756 [2024-11-18 10:38:48,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 10:38:48,546 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 10:38:48,547 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 10:38:48,547 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 10:38:48,557 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 10:38:48,561 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:38:48" (1/1) ... [2024-11-18 10:38:48,562 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72601708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:48, skipping insertion in model container [2024-11-18 10:38:48,562 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:38:48" (1/1) ... [2024-11-18 10:38:48,643 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 10:38:48,938 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label59.c[4234,4247] [2024-11-18 10:38:49,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 10:38:49,189 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 10:38:49,209 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label59.c[4234,4247] [2024-11-18 10:38:49,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 10:38:49,484 INFO L204 MainTranslator]: Completed translation [2024-11-18 10:38:49,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:49 WrapperNode [2024-11-18 10:38:49,484 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 10:38:49,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 10:38:49,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 10:38:49,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 10:38:49,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:49" (1/1) ... [2024-11-18 10:38:49,571 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:49" (1/1) ... [2024-11-18 10:38:49,664 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 859 [2024-11-18 10:38:49,668 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 10:38:49,669 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 10:38:49,669 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 10:38:49,669 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 10:38:49,687 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:49" (1/1) ... [2024-11-18 10:38:49,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:49" (1/1) ... [2024-11-18 10:38:49,710 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:49" (1/1) ... [2024-11-18 10:38:49,749 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 10:38:49,753 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:49" (1/1) ... [2024-11-18 10:38:49,753 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:49" (1/1) ... [2024-11-18 10:38:49,785 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:49" (1/1) ... [2024-11-18 10:38:49,790 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:49" (1/1) ... [2024-11-18 10:38:49,796 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:49" (1/1) ... [2024-11-18 10:38:49,800 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:49" (1/1) ... [2024-11-18 10:38:49,809 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 10:38:49,810 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 10:38:49,810 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 10:38:49,810 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 10:38:49,811 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:49" (1/1) ... [2024-11-18 10:38:49,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 10:38:49,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:38:49,838 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 10:38:49,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 10:38:49,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 10:38:49,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 10:38:49,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 10:38:49,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 10:38:49,921 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 10:38:49,923 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 10:38:51,347 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-18 10:38:51,351 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 10:38:51,383 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 10:38:51,388 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 10:38:51,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:38:51 BoogieIcfgContainer [2024-11-18 10:38:51,389 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 10:38:51,395 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 10:38:51,396 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 10:38:51,403 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 10:38:51,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:38:48" (1/3) ... [2024-11-18 10:38:51,404 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38df27cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:38:51, skipping insertion in model container [2024-11-18 10:38:51,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:49" (2/3) ... [2024-11-18 10:38:51,404 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38df27cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:38:51, skipping insertion in model container [2024-11-18 10:38:51,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:38:51" (3/3) ... [2024-11-18 10:38:51,405 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label59.c [2024-11-18 10:38:51,438 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 10:38:51,442 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 10:38:51,558 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 10:38:51,572 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;@f2e53bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 10:38:51,573 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 10:38:51,582 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:38:51,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-18 10:38:51,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:38:51,594 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] [2024-11-18 10:38:51,598 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:38:51,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:38:51,609 INFO L85 PathProgramCache]: Analyzing trace with hash 2102454322, now seen corresponding path program 1 times [2024-11-18 10:38:51,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:38:51,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251827473] [2024-11-18 10:38:51,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:38:51,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:38:51,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:38:51,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:38:51,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:38:51,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251827473] [2024-11-18 10:38:51,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251827473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:38:51,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:38:51,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:38:51,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537865589] [2024-11-18 10:38:51,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:38:52,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:38:52,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:38:52,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:38:52,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:38:52,018 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:38:53,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:38:53,227 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2024-11-18 10:38:53,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:38:53,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2024-11-18 10:38:53,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:38:53,239 INFO L225 Difference]: With dead ends: 669 [2024-11-18 10:38:53,240 INFO L226 Difference]: Without dead ends: 360 [2024-11-18 10:38:53,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:38:53,246 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 196 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-18 10:38:53,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 30 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-18 10:38:53,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-18 10:38:53,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2024-11-18 10:38:53,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.6378830083565459) internal successors, (588), 359 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:38:53,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 588 transitions. [2024-11-18 10:38:53,294 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 588 transitions. Word has length 40 [2024-11-18 10:38:53,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:38:53,294 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 588 transitions. [2024-11-18 10:38:53,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:38:53,295 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 588 transitions. [2024-11-18 10:38:53,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-18 10:38:53,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:38:53,297 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:38:53,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 10:38:53,298 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:38:53,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:38:53,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1576038760, now seen corresponding path program 1 times [2024-11-18 10:38:53,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:38:53,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651761395] [2024-11-18 10:38:53,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:38:53,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:38:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:38:53,553 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:38:53,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:38:53,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651761395] [2024-11-18 10:38:53,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651761395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:38:53,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:38:53,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:38:53,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923268911] [2024-11-18 10:38:53,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:38:53,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:38:53,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:38:53,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:38:53,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:38:53,568 INFO L87 Difference]: Start difference. First operand 360 states and 588 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:38:54,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:38:54,456 INFO L93 Difference]: Finished difference Result 1076 states and 1760 transitions. [2024-11-18 10:38:54,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:38:54,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2024-11-18 10:38:54,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:38:54,465 INFO L225 Difference]: With dead ends: 1076 [2024-11-18 10:38:54,465 INFO L226 Difference]: Without dead ends: 718 [2024-11-18 10:38:54,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:38:54,467 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 134 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 10:38:54,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 88 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 10:38:54,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2024-11-18 10:38:54,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 716. [2024-11-18 10:38:54,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.4223776223776223) internal successors, (1017), 715 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:38:54,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1017 transitions. [2024-11-18 10:38:54,552 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1017 transitions. Word has length 105 [2024-11-18 10:38:54,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:38:54,553 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 1017 transitions. [2024-11-18 10:38:54,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:38:54,557 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1017 transitions. [2024-11-18 10:38:54,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-18 10:38:54,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:38:54,560 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:38:54,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 10:38:54,560 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:38:54,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:38:54,566 INFO L85 PathProgramCache]: Analyzing trace with hash 335241793, now seen corresponding path program 1 times [2024-11-18 10:38:54,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:38:54,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945527895] [2024-11-18 10:38:54,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:38:54,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:38:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:38:54,824 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:38:54,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:38:54,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945527895] [2024-11-18 10:38:54,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945527895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:38:54,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:38:54,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:38:54,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063898781] [2024-11-18 10:38:54,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:38:54,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:38:54,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:38:54,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:38:54,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:38:54,832 INFO L87 Difference]: Start difference. First operand 716 states and 1017 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:38:55,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:38:55,522 INFO L93 Difference]: Finished difference Result 1786 states and 2617 transitions. [2024-11-18 10:38:55,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:38:55,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-18 10:38:55,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:38:55,530 INFO L225 Difference]: With dead ends: 1786 [2024-11-18 10:38:55,532 INFO L226 Difference]: Without dead ends: 1072 [2024-11-18 10:38:55,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:38:55,537 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 125 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 10:38:55,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 57 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 10:38:55,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2024-11-18 10:38:55,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2024-11-18 10:38:55,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.3837535014005602) internal successors, (1482), 1071 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:38:55,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1482 transitions. [2024-11-18 10:38:55,591 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1482 transitions. Word has length 106 [2024-11-18 10:38:55,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:38:55,592 INFO L471 AbstractCegarLoop]: Abstraction has 1072 states and 1482 transitions. [2024-11-18 10:38:55,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:38:55,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1482 transitions. [2024-11-18 10:38:55,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-18 10:38:55,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:38:55,600 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:38:55,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 10:38:55,601 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:38:55,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:38:55,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1081133986, now seen corresponding path program 1 times [2024-11-18 10:38:55,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:38:55,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811954956] [2024-11-18 10:38:55,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:38:55,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:38:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:38:56,083 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:38:56,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:38:56,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811954956] [2024-11-18 10:38:56,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811954956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:38:56,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:38:56,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:38:56,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020140467] [2024-11-18 10:38:56,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:38:56,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:38:56,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:38:56,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:38:56,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:38:56,093 INFO L87 Difference]: Start difference. First operand 1072 states and 1482 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:38:57,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:38:57,228 INFO L93 Difference]: Finished difference Result 2498 states and 3366 transitions. [2024-11-18 10:38:57,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:38:57,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-18 10:38:57,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:38:57,232 INFO L225 Difference]: With dead ends: 2498 [2024-11-18 10:38:57,232 INFO L226 Difference]: Without dead ends: 1428 [2024-11-18 10:38:57,237 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 [2024-11-18 10:38:57,244 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 439 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-18 10:38:57,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 121 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-18 10:38:57,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2024-11-18 10:38:57,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1250. [2024-11-18 10:38:57,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.3386709367493994) internal successors, (1672), 1249 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:38:57,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1672 transitions. [2024-11-18 10:38:57,270 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1672 transitions. Word has length 109 [2024-11-18 10:38:57,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:38:57,271 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 1672 transitions. [2024-11-18 10:38:57,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:38:57,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1672 transitions. [2024-11-18 10:38:57,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-18 10:38:57,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:38:57,276 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:38:57,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 10:38:57,276 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:38:57,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:38:57,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1707496834, now seen corresponding path program 1 times [2024-11-18 10:38:57,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:38:57,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685672430] [2024-11-18 10:38:57,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:38:57,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:38:57,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:38:57,566 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:38:57,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:38:57,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685672430] [2024-11-18 10:38:57,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685672430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:38:57,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:38:57,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:38:57,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103933952] [2024-11-18 10:38:57,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:38:57,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:38:57,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:38:57,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:38:57,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:38:57,578 INFO L87 Difference]: Start difference. First operand 1250 states and 1672 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:38:58,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:38:58,421 INFO L93 Difference]: Finished difference Result 2885 states and 3777 transitions. [2024-11-18 10:38:58,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:38:58,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2024-11-18 10:38:58,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:38:58,430 INFO L225 Difference]: With dead ends: 2885 [2024-11-18 10:38:58,431 INFO L226 Difference]: Without dead ends: 1608 [2024-11-18 10:38:58,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:38:58,437 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 103 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 10:38:58,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 123 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 10:38:58,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2024-11-18 10:38:58,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1606. [2024-11-18 10:38:58,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1769470404984423) internal successors, (1889), 1605 states have internal predecessors, (1889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:38:58,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1889 transitions. [2024-11-18 10:38:58,494 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1889 transitions. Word has length 120 [2024-11-18 10:38:58,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:38:58,495 INFO L471 AbstractCegarLoop]: Abstraction has 1606 states and 1889 transitions. [2024-11-18 10:38:58,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:38:58,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1889 transitions. [2024-11-18 10:38:58,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-18 10:38:58,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:38:58,498 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 10:38:58,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 10:38:58,500 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:38:58,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:38:58,501 INFO L85 PathProgramCache]: Analyzing trace with hash -308035380, now seen corresponding path program 1 times [2024-11-18 10:38:58,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:38:58,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305342304] [2024-11-18 10:38:58,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:38:58,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:38:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:38:58,923 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:38:58,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:38:58,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305342304] [2024-11-18 10:38:58,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305342304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:38:58,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:38:58,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:38:58,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799218242] [2024-11-18 10:38:58,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:38:58,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:38:58,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:38:58,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:38:58,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:38:58,930 INFO L87 Difference]: Start difference. First operand 1606 states and 1889 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:38:59,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:38:59,561 INFO L93 Difference]: Finished difference Result 3744 states and 4424 transitions. [2024-11-18 10:38:59,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:38:59,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2024-11-18 10:38:59,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:38:59,577 INFO L225 Difference]: With dead ends: 3744 [2024-11-18 10:38:59,578 INFO L226 Difference]: Without dead ends: 2140 [2024-11-18 10:38:59,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:38:59,581 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 111 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 10:38:59,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 77 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 10:38:59,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2024-11-18 10:38:59,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2024-11-18 10:38:59,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.1514726507713886) internal successors, (2463), 2139 states have internal predecessors, (2463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:38:59,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2463 transitions. [2024-11-18 10:38:59,649 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2463 transitions. Word has length 214 [2024-11-18 10:38:59,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:38:59,650 INFO L471 AbstractCegarLoop]: Abstraction has 2140 states and 2463 transitions. [2024-11-18 10:38:59,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:38:59,650 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2463 transitions. [2024-11-18 10:38:59,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2024-11-18 10:38:59,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:38:59,656 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:38:59,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 10:38:59,657 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:38:59,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:38:59,657 INFO L85 PathProgramCache]: Analyzing trace with hash -150105723, now seen corresponding path program 1 times [2024-11-18 10:38:59,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:38:59,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289613619] [2024-11-18 10:38:59,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:38:59,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:38:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:39:00,279 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2024-11-18 10:39:00,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:39:00,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289613619] [2024-11-18 10:39:00,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289613619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:39:00,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:39:00,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:39:00,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785755792] [2024-11-18 10:39:00,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:39:00,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:39:00,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:39:00,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:39:00,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:39:00,285 INFO L87 Difference]: Start difference. First operand 2140 states and 2463 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:01,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:39:01,079 INFO L93 Difference]: Finished difference Result 4336 states and 5006 transitions. [2024-11-18 10:39:01,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:39:01,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 331 [2024-11-18 10:39:01,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:39:01,089 INFO L225 Difference]: With dead ends: 4336 [2024-11-18 10:39:01,093 INFO L226 Difference]: Without dead ends: 2318 [2024-11-18 10:39:01,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:39:01,099 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 141 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 10:39:01,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 17 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 10:39:01,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2024-11-18 10:39:01,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2140. [2024-11-18 10:39:01,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.1033193080878916) internal successors, (2360), 2139 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:01,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2360 transitions. [2024-11-18 10:39:01,158 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2360 transitions. Word has length 331 [2024-11-18 10:39:01,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:39:01,163 INFO L471 AbstractCegarLoop]: Abstraction has 2140 states and 2360 transitions. [2024-11-18 10:39:01,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:01,163 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2360 transitions. [2024-11-18 10:39:01,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2024-11-18 10:39:01,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:39:01,171 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:39:01,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 10:39:01,172 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:39:01,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:39:01,172 INFO L85 PathProgramCache]: Analyzing trace with hash 2021328189, now seen corresponding path program 1 times [2024-11-18 10:39:01,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:39:01,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582979673] [2024-11-18 10:39:01,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:39:01,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:39:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:39:01,992 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-18 10:39:01,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:39:01,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582979673] [2024-11-18 10:39:01,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582979673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:39:01,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:39:01,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:39:01,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495487924] [2024-11-18 10:39:01,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:39:01,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:39:01,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:39:01,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:39:01,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:39:01,999 INFO L87 Difference]: Start difference. First operand 2140 states and 2360 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:02,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:39:02,638 INFO L93 Difference]: Finished difference Result 4456 states and 4944 transitions. [2024-11-18 10:39:02,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:39:02,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 420 [2024-11-18 10:39:02,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:39:02,649 INFO L225 Difference]: With dead ends: 4456 [2024-11-18 10:39:02,653 INFO L226 Difference]: Without dead ends: 2496 [2024-11-18 10:39:02,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:39:02,660 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 141 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 10:39:02,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 247 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 10:39:02,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2024-11-18 10:39:02,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2318. [2024-11-18 10:39:02,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.1022874406560208) internal successors, (2554), 2317 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:02,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2554 transitions. [2024-11-18 10:39:02,730 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2554 transitions. Word has length 420 [2024-11-18 10:39:02,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:39:02,734 INFO L471 AbstractCegarLoop]: Abstraction has 2318 states and 2554 transitions. [2024-11-18 10:39:02,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:02,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2554 transitions. [2024-11-18 10:39:02,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2024-11-18 10:39:02,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:39:02,744 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-18 10:39:02,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 10:39:02,744 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:39:02,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:39:02,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1485861164, now seen corresponding path program 1 times [2024-11-18 10:39:02,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:39:02,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097707827] [2024-11-18 10:39:02,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:39:02,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:39:02,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:39:03,342 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 357 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-18 10:39:03,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:39:03,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097707827] [2024-11-18 10:39:03,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097707827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:39:03,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:39:03,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:39:03,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474582165] [2024-11-18 10:39:03,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:39:03,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:39:03,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:39:03,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:39:03,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:39:03,349 INFO L87 Difference]: Start difference. First operand 2318 states and 2554 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:03,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:39:03,972 INFO L93 Difference]: Finished difference Result 4990 states and 5544 transitions. [2024-11-18 10:39:03,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:39:03,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 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 426 [2024-11-18 10:39:03,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:39:03,980 INFO L225 Difference]: With dead ends: 4990 [2024-11-18 10:39:03,982 INFO L226 Difference]: Without dead ends: 2852 [2024-11-18 10:39:03,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:39:03,984 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 10:39:03,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 245 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 10:39:03,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2024-11-18 10:39:04,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2318. [2024-11-18 10:39:04,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.0971083297367286) internal successors, (2542), 2317 states have internal predecessors, (2542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:04,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2542 transitions. [2024-11-18 10:39:04,014 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2542 transitions. Word has length 426 [2024-11-18 10:39:04,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:39:04,014 INFO L471 AbstractCegarLoop]: Abstraction has 2318 states and 2542 transitions. [2024-11-18 10:39:04,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:04,015 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2542 transitions. [2024-11-18 10:39:04,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-18 10:39:04,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:39:04,020 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:39:04,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 10:39:04,020 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:39:04,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:39:04,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1077170215, now seen corresponding path program 1 times [2024-11-18 10:39:04,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:39:04,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575253352] [2024-11-18 10:39:04,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:39:04,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:39:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:39:04,617 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 357 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-18 10:39:04,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:39:04,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575253352] [2024-11-18 10:39:04,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575253352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:39:04,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:39:04,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:39:04,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795867704] [2024-11-18 10:39:04,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:39:04,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:39:04,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:39:04,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:39:04,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:39:04,618 INFO L87 Difference]: Start difference. First operand 2318 states and 2542 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:05,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:39:05,422 INFO L93 Difference]: Finished difference Result 5168 states and 5725 transitions. [2024-11-18 10:39:05,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:39:05,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 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 433 [2024-11-18 10:39:05,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:39:05,441 INFO L225 Difference]: With dead ends: 5168 [2024-11-18 10:39:05,444 INFO L226 Difference]: Without dead ends: 3030 [2024-11-18 10:39:05,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:39:05,448 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 112 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 10:39:05,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 203 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 10:39:05,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2024-11-18 10:39:05,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2674. [2024-11-18 10:39:05,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.0800598578376357) internal successors, (2887), 2673 states have internal predecessors, (2887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:05,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2887 transitions. [2024-11-18 10:39:05,480 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2887 transitions. Word has length 433 [2024-11-18 10:39:05,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:39:05,481 INFO L471 AbstractCegarLoop]: Abstraction has 2674 states and 2887 transitions. [2024-11-18 10:39:05,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:05,481 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2887 transitions. [2024-11-18 10:39:05,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2024-11-18 10:39:05,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:39:05,486 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:39:05,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 10:39:05,487 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:39:05,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:39:05,487 INFO L85 PathProgramCache]: Analyzing trace with hash -254075414, now seen corresponding path program 1 times [2024-11-18 10:39:05,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:39:05,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434319298] [2024-11-18 10:39:05,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:39:05,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:39:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:39:06,029 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 471 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-18 10:39:06,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:39:06,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434319298] [2024-11-18 10:39:06,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434319298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:39:06,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:39:06,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:39:06,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87525700] [2024-11-18 10:39:06,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:39:06,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:39:06,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:39:06,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:39:06,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:39:06,035 INFO L87 Difference]: Start difference. First operand 2674 states and 2887 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:06,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:39:06,707 INFO L93 Difference]: Finished difference Result 6236 states and 6826 transitions. [2024-11-18 10:39:06,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:39:06,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 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 474 [2024-11-18 10:39:06,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:39:06,728 INFO L225 Difference]: With dead ends: 6236 [2024-11-18 10:39:06,728 INFO L226 Difference]: Without dead ends: 3742 [2024-11-18 10:39:06,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:39:06,735 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 74 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 10:39:06,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 50 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 10:39:06,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2024-11-18 10:39:06,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2024-11-18 10:39:06,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.0772520716385994) internal successors, (4030), 3741 states have internal predecessors, (4030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:06,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4030 transitions. [2024-11-18 10:39:06,822 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4030 transitions. Word has length 474 [2024-11-18 10:39:06,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:39:06,823 INFO L471 AbstractCegarLoop]: Abstraction has 3742 states and 4030 transitions. [2024-11-18 10:39:06,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:06,823 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4030 transitions. [2024-11-18 10:39:06,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2024-11-18 10:39:06,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:39:06,825 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:39:06,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 10:39:06,829 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:39:06,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:39:06,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1114907619, now seen corresponding path program 1 times [2024-11-18 10:39:06,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:39:06,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559950725] [2024-11-18 10:39:06,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:39:06,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:39:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:39:07,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 625 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2024-11-18 10:39:07,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:39:07,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559950725] [2024-11-18 10:39:07,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559950725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:39:07,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:39:07,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:39:07,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332568235] [2024-11-18 10:39:07,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:39:07,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:39:07,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:39:07,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:39:07,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:39:07,424 INFO L87 Difference]: Start difference. First operand 3742 states and 4030 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:08,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:39:08,301 INFO L93 Difference]: Finished difference Result 7482 states and 8073 transitions. [2024-11-18 10:39:08,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:39:08,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 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 510 [2024-11-18 10:39:08,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:39:08,324 INFO L225 Difference]: With dead ends: 7482 [2024-11-18 10:39:08,327 INFO L226 Difference]: Without dead ends: 3920 [2024-11-18 10:39:08,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:39:08,335 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 102 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 10:39:08,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 243 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 10:39:08,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2024-11-18 10:39:08,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3564. [2024-11-18 10:39:08,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.074094863878754) internal successors, (3827), 3563 states have internal predecessors, (3827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:08,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3827 transitions. [2024-11-18 10:39:08,461 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3827 transitions. Word has length 510 [2024-11-18 10:39:08,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:39:08,462 INFO L471 AbstractCegarLoop]: Abstraction has 3564 states and 3827 transitions. [2024-11-18 10:39:08,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:08,463 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3827 transitions. [2024-11-18 10:39:08,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2024-11-18 10:39:08,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:39:08,470 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 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] [2024-11-18 10:39:08,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 10:39:08,470 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:39:08,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:39:08,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1922039793, now seen corresponding path program 1 times [2024-11-18 10:39:08,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:39:08,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940174426] [2024-11-18 10:39:08,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:39:08,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:39:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:39:09,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 832 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-18 10:39:09,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:39:09,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940174426] [2024-11-18 10:39:09,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940174426] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:39:09,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44773383] [2024-11-18 10:39:09,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:39:09,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:39:09,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:39:09,205 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 10:39:09,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 10:39:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:39:09,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 10:39:09,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:39:09,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2024-11-18 10:39:09,618 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 10:39:09,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44773383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:39:09,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 10:39:09,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-18 10:39:09,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678103942] [2024-11-18 10:39:09,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:39:09,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:39:09,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:39:09,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:39:09,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 10:39:09,624 INFO L87 Difference]: Start difference. First operand 3564 states and 3827 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:10,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:39:10,221 INFO L93 Difference]: Finished difference Result 7660 states and 8231 transitions. [2024-11-18 10:39:10,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:39:10,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 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 629 [2024-11-18 10:39:10,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:39:10,232 INFO L225 Difference]: With dead ends: 7660 [2024-11-18 10:39:10,242 INFO L226 Difference]: Without dead ends: 3386 [2024-11-18 10:39:10,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 632 GetRequests, 629 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 10:39:10,246 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 141 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 10:39:10,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 241 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 10:39:10,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2024-11-18 10:39:10,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 2852. [2024-11-18 10:39:10,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.067344791301298) internal successors, (3043), 2851 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:10,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3043 transitions. [2024-11-18 10:39:10,312 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3043 transitions. Word has length 629 [2024-11-18 10:39:10,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:39:10,312 INFO L471 AbstractCegarLoop]: Abstraction has 2852 states and 3043 transitions. [2024-11-18 10:39:10,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:10,313 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3043 transitions. [2024-11-18 10:39:10,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2024-11-18 10:39:10,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:39:10,330 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:39:10,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 10:39:10,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-18 10:39:10,534 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:39:10,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:39:10,534 INFO L85 PathProgramCache]: Analyzing trace with hash 145503667, now seen corresponding path program 1 times [2024-11-18 10:39:10,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:39:10,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062913263] [2024-11-18 10:39:10,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:39:10,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:39:10,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:39:11,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1826 backedges. 1319 proven. 155 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-11-18 10:39:11,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:39:11,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062913263] [2024-11-18 10:39:11,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062913263] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:39:11,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716547302] [2024-11-18 10:39:11,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:39:11,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:39:11,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:39:11,006 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) [2024-11-18 10:39:11,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 10:39:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:39:11,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 10:39:11,227 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:39:11,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1826 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 1599 trivial. 0 not checked. [2024-11-18 10:39:11,349 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 10:39:11,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716547302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:39:11,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 10:39:11,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-18 10:39:11,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882417105] [2024-11-18 10:39:11,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:39:11,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:39:11,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:39:11,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:39:11,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 10:39:11,353 INFO L87 Difference]: Start difference. First operand 2852 states and 3043 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:11,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:39:11,718 INFO L93 Difference]: Finished difference Result 6234 states and 6661 transitions. [2024-11-18 10:39:11,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:39:11,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 791 [2024-11-18 10:39:11,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:39:11,720 INFO L225 Difference]: With dead ends: 6234 [2024-11-18 10:39:11,720 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 10:39:11,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 794 GetRequests, 791 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 10:39:11,729 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 141 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 10:39:11,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 233 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 10:39:11,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 10:39:11,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 10:39:11,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:11,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 10:39:11,734 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 791 [2024-11-18 10:39:11,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:39:11,734 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 10:39:11,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:39:11,735 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 10:39:11,735 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 10:39:11,737 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 10:39:11,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-18 10:39:11,942 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,SelfDestructingSolverStorable13 [2024-11-18 10:39:11,945 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:39:11,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 10:39:12,186 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 10:39:12,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:39:12 BoogieIcfgContainer [2024-11-18 10:39:12,199 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 10:39:12,199 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 10:39:12,199 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 10:39:12,199 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 10:39:12,200 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:38:51" (3/4) ... [2024-11-18 10:39:12,201 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 10:39:12,225 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-18 10:39:12,229 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-18 10:39:12,229 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-18 10:39:12,230 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 10:39:12,456 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 10:39:12,459 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 10:39:12,460 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 10:39:12,461 INFO L158 Benchmark]: Toolchain (without parser) took 23914.87ms. Allocated memory was 184.5MB in the beginning and 503.3MB in the end (delta: 318.8MB). Free memory was 112.9MB in the beginning and 296.4MB in the end (delta: -183.5MB). Peak memory consumption was 137.9MB. Max. memory is 16.1GB. [2024-11-18 10:39:12,464 INFO L158 Benchmark]: CDTParser took 3.18ms. Allocated memory is still 121.6MB. Free memory was 82.5MB in the beginning and 82.4MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 10:39:12,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 937.69ms. Allocated memory is still 184.5MB. Free memory was 112.6MB in the beginning and 151.5MB in the end (delta: -38.9MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. [2024-11-18 10:39:12,465 INFO L158 Benchmark]: Boogie Procedure Inliner took 179.32ms. Allocated memory is still 184.5MB. Free memory was 151.5MB in the beginning and 141.3MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-18 10:39:12,465 INFO L158 Benchmark]: Boogie Preprocessor took 140.37ms. Allocated memory is still 184.5MB. Free memory was 141.3MB in the beginning and 128.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-18 10:39:12,465 INFO L158 Benchmark]: RCFGBuilder took 1579.22ms. Allocated memory is still 184.5MB. Free memory was 128.7MB in the beginning and 99.7MB in the end (delta: 29.0MB). Peak memory consumption was 78.0MB. Max. memory is 16.1GB. [2024-11-18 10:39:12,465 INFO L158 Benchmark]: TraceAbstraction took 20803.43ms. Allocated memory was 184.5MB in the beginning and 503.3MB in the end (delta: 318.8MB). Free memory was 98.7MB in the beginning and 311.1MB in the end (delta: -212.4MB). Peak memory consumption was 107.4MB. Max. memory is 16.1GB. [2024-11-18 10:39:12,466 INFO L158 Benchmark]: Witness Printer took 261.37ms. Allocated memory is still 503.3MB. Free memory was 311.1MB in the beginning and 296.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-18 10:39:12,467 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.18ms. Allocated memory is still 121.6MB. Free memory was 82.5MB in the beginning and 82.4MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 937.69ms. Allocated memory is still 184.5MB. Free memory was 112.6MB in the beginning and 151.5MB in the end (delta: -38.9MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 179.32ms. Allocated memory is still 184.5MB. Free memory was 151.5MB in the beginning and 141.3MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 140.37ms. Allocated memory is still 184.5MB. Free memory was 141.3MB in the beginning and 128.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1579.22ms. Allocated memory is still 184.5MB. Free memory was 128.7MB in the beginning and 99.7MB in the end (delta: 29.0MB). Peak memory consumption was 78.0MB. Max. memory is 16.1GB. * TraceAbstraction took 20803.43ms. Allocated memory was 184.5MB in the beginning and 503.3MB in the end (delta: 318.8MB). Free memory was 98.7MB in the beginning and 311.1MB in the end (delta: -212.4MB). Peak memory consumption was 107.4MB. Max. memory is 16.1GB. * Witness Printer took 261.37ms. Allocated memory is still 503.3MB. Free memory was 311.1MB in the beginning and 296.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 134]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.4s, OverallIterations: 14, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2070 SdHoareTripleChecker+Valid, 10.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2070 mSDsluCounter, 1975 SdHoareTripleChecker+Invalid, 8.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 80 mSDsCounter, 955 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7197 IncrementalHoareTripleChecker+Invalid, 8152 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 955 mSolverCounterUnsat, 1895 mSDtfsCounter, 7197 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1460 GetRequests, 1438 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3742occurred in iteration=11, InterpolantAutomatonStates: 45, 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, 2318 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 6128 NumberOfCodeBlocks, 6128 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 6112 ConstructedInterpolants, 0 QuantifiedInterpolants, 13359 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1762 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 16 InterpolantComputations, 14 PerfectInterpolantSequences, 10128/10393 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((((a24 == 1) && (a15 <= 7)) && (((long long) 49 + a12) <= 0)) || ((((long long) 49 + a12) <= 0) && (a15 <= 5))) || ((a24 == 1) && (0 <= ((long long) a12 + 42)))) || ((a24 == 1) && (a15 <= 5))) || ((a24 == 1) && (7 <= a21))) RESULT: Ultimate proved your program to be correct! [2024-11-18 10:39:12,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE