./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_field5.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_field5.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 3c647f6863775d2469032dd5ed46849f62619864af6c165841f34d909d09f048 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 03:02:34,258 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 03:02:34,344 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 03:02:34,349 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 03:02:34,349 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 03:02:34,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 03:02:34,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 03:02:34,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 03:02:34,377 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 03:02:34,378 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 03:02:34,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 03:02:34,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 03:02:34,379 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 03:02:34,380 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 03:02:34,381 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 03:02:34,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 03:02:34,382 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 03:02:34,382 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 03:02:34,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 03:02:34,382 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 03:02:34,384 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 03:02:34,385 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 03:02:34,385 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 03:02:34,385 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 03:02:34,385 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 03:02:34,386 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 03:02:34,386 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 03:02:34,386 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 03:02:34,386 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 03:02:34,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 03:02:34,387 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 03:02:34,387 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 03:02:34,387 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 03:02:34,387 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 03:02:34,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 03:02:34,387 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 03:02:34,388 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 03:02:34,388 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 03:02:34,388 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 03:02:34,388 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c647f6863775d2469032dd5ed46849f62619864af6c165841f34d909d09f048 [2024-11-10 03:02:34,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 03:02:34,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 03:02:34,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 03:02:34,620 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 03:02:34,621 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 03:02:34,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_field5.c [2024-11-10 03:02:35,899 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 03:02:36,280 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 03:02:36,281 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_field5.c [2024-11-10 03:02:36,327 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e0d1524e/e10282e3f6954f7cac5376058149143b/FLAG55cda46aa [2024-11-10 03:02:36,342 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e0d1524e/e10282e3f6954f7cac5376058149143b [2024-11-10 03:02:36,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 03:02:36,348 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 03:02:36,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 03:02:36,351 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 03:02:36,356 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 03:02:36,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:02:36" (1/1) ... [2024-11-10 03:02:36,357 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ad88c24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:36, skipping insertion in model container [2024-11-10 03:02:36,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:02:36" (1/1) ... [2024-11-10 03:02:36,547 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 03:02:36,799 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/hardware-verification-bv/btor2c-lazyMod.vis_arrays_field5.c[1257,1270] [2024-11-10 03:02:37,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 03:02:37,545 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 03:02:37,554 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/hardware-verification-bv/btor2c-lazyMod.vis_arrays_field5.c[1257,1270] [2024-11-10 03:02:38,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 03:02:38,087 INFO L204 MainTranslator]: Completed translation [2024-11-10 03:02:38,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:38 WrapperNode [2024-11-10 03:02:38,088 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 03:02:38,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 03:02:38,089 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 03:02:38,089 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 03:02:38,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:38" (1/1) ... [2024-11-10 03:02:38,224 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:38" (1/1) ... [2024-11-10 03:02:39,395 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 17810 [2024-11-10 03:02:39,395 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 03:02:39,396 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 03:02:39,396 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 03:02:39,396 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 03:02:39,404 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:38" (1/1) ... [2024-11-10 03:02:39,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:38" (1/1) ... [2024-11-10 03:02:39,882 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:38" (1/1) ... [2024-11-10 03:02:40,155 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]. [2024-11-10 03:02:40,156 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:38" (1/1) ... [2024-11-10 03:02:40,156 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:38" (1/1) ... [2024-11-10 03:02:40,565 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:38" (1/1) ... [2024-11-10 03:02:40,621 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:38" (1/1) ... [2024-11-10 03:02:40,681 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:38" (1/1) ... [2024-11-10 03:02:40,729 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:38" (1/1) ... [2024-11-10 03:02:40,972 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 03:02:40,973 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 03:02:40,973 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 03:02:40,973 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 03:02:40,974 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:38" (1/1) ... [2024-11-10 03:02:40,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 03:02:40,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 03:02:41,001 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) [2024-11-10 03:02:41,003 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 [2024-11-10 03:02:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 03:02:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 03:02:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 03:02:41,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 03:02:41,997 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 03:02:41,999 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 03:02:59,209 INFO L? ?]: Removed 11982 outVars from TransFormulas that were not future-live. [2024-11-10 03:02:59,209 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 03:02:59,479 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 03:02:59,480 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 03:02:59,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 03:02:59 BoogieIcfgContainer [2024-11-10 03:02:59,482 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 03:02:59,484 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 03:02:59,484 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 03:02:59,487 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 03:02:59,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 03:02:36" (1/3) ... [2024-11-10 03:02:59,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5970e1ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:02:59, skipping insertion in model container [2024-11-10 03:02:59,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:38" (2/3) ... [2024-11-10 03:02:59,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5970e1ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:02:59, skipping insertion in model container [2024-11-10 03:02:59,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 03:02:59" (3/3) ... [2024-11-10 03:02:59,492 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_field5.c [2024-11-10 03:02:59,508 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 03:02:59,508 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 03:02:59,622 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 03:02:59,627 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;@5ec1fc30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 03:02:59,627 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 03:02:59,644 INFO L276 IsEmpty]: Start isEmpty. Operand has 3869 states, 3867 states have (on average 1.499353504008275) internal successors, (5798), 3868 states have internal predecessors, (5798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 03:02:59,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-10 03:02:59,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:02:59,662 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 03:02:59,662 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:02:59,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:02:59,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1325874342, now seen corresponding path program 1 times [2024-11-10 03:02:59,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:02:59,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582581883] [2024-11-10 03:02:59,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:02:59,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:03:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:03:04,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 03:03:04,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:03:04,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582581883] [2024-11-10 03:03:04,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582581883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:03:04,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:03:04,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 03:03:04,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541776046] [2024-11-10 03:03:04,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:03:04,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 03:03:04,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:03:04,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 03:03:04,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 03:03:04,453 INFO L87 Difference]: Start difference. First operand has 3869 states, 3867 states have (on average 1.499353504008275) internal successors, (5798), 3868 states have internal predecessors, (5798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 03:03:06,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:03:06,133 INFO L93 Difference]: Finished difference Result 7633 states and 11443 transitions. [2024-11-10 03:03:06,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 03:03:06,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2024-11-10 03:03:06,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:03:06,164 INFO L225 Difference]: With dead ends: 7633 [2024-11-10 03:03:06,164 INFO L226 Difference]: Without dead ends: 3866 [2024-11-10 03:03:06,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 03:03:06,181 INFO L432 NwaCegarLoop]: 4826 mSDtfsCounter, 0 mSDsluCounter, 9647 mSDsCounter, 0 mSdLazyCounter, 2902 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14473 SdHoareTripleChecker+Invalid, 2902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-10 03:03:06,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14473 Invalid, 2902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2902 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-10 03:03:06,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3866 states. [2024-11-10 03:03:06,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3866 to 3866. [2024-11-10 03:03:06,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3866 states, 3865 states have (on average 1.4990944372574386) internal successors, (5794), 3865 states have internal predecessors, (5794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 03:03:06,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3866 states to 3866 states and 5794 transitions. [2024-11-10 03:03:06,301 INFO L78 Accepts]: Start accepts. Automaton has 3866 states and 5794 transitions. Word has length 166 [2024-11-10 03:03:06,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:03:06,302 INFO L471 AbstractCegarLoop]: Abstraction has 3866 states and 5794 transitions. [2024-11-10 03:03:06,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 03:03:06,302 INFO L276 IsEmpty]: Start isEmpty. Operand 3866 states and 5794 transitions. [2024-11-10 03:03:06,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-10 03:03:06,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:03:06,305 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 03:03:06,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 03:03:06,306 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:03:06,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:03:06,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1992627923, now seen corresponding path program 1 times [2024-11-10 03:03:06,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:03:06,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380147863] [2024-11-10 03:03:06,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:03:06,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:03:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:03:09,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 03:03:09,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:03:09,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380147863] [2024-11-10 03:03:09,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380147863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:03:09,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:03:09,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 03:03:09,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826540353] [2024-11-10 03:03:09,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:03:09,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 03:03:09,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:03:09,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 03:03:09,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 03:03:09,121 INFO L87 Difference]: Start difference. First operand 3866 states and 5794 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 03:03:10,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:03:10,738 INFO L93 Difference]: Finished difference Result 7632 states and 11439 transitions. [2024-11-10 03:03:10,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 03:03:10,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 0 states have call successors, (0), 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 167 [2024-11-10 03:03:10,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:03:10,753 INFO L225 Difference]: With dead ends: 7632 [2024-11-10 03:03:10,753 INFO L226 Difference]: Without dead ends: 3868 [2024-11-10 03:03:10,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 03:03:10,761 INFO L432 NwaCegarLoop]: 4826 mSDtfsCounter, 0 mSDsluCounter, 9644 mSDsCounter, 0 mSdLazyCounter, 2905 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14470 SdHoareTripleChecker+Invalid, 2905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-10 03:03:10,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14470 Invalid, 2905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2905 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-10 03:03:10,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3868 states. [2024-11-10 03:03:10,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3868 to 3868. [2024-11-10 03:03:10,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3868 states, 3867 states have (on average 1.4988363072148954) internal successors, (5796), 3867 states have internal predecessors, (5796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 03:03:10,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3868 states to 3868 states and 5796 transitions. [2024-11-10 03:03:10,840 INFO L78 Accepts]: Start accepts. Automaton has 3868 states and 5796 transitions. Word has length 167 [2024-11-10 03:03:10,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:03:10,842 INFO L471 AbstractCegarLoop]: Abstraction has 3868 states and 5796 transitions. [2024-11-10 03:03:10,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 03:03:10,842 INFO L276 IsEmpty]: Start isEmpty. Operand 3868 states and 5796 transitions. [2024-11-10 03:03:10,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-10 03:03:10,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:03:10,845 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 03:03:10,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 03:03:10,846 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:03:10,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:03:10,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1389173215, now seen corresponding path program 1 times [2024-11-10 03:03:10,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:03:10,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080193419] [2024-11-10 03:03:10,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:03:10,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:03:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:03:51,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 03:03:51,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:03:51,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080193419] [2024-11-10 03:03:51,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080193419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:03:51,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:03:51,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 03:03:51,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146964324] [2024-11-10 03:03:51,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:03:51,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 03:03:51,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:03:51,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 03:03:51,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 03:03:51,670 INFO L87 Difference]: Start difference. First operand 3868 states and 5796 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 03:03:53,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:03:53,782 INFO L93 Difference]: Finished difference Result 7632 states and 11438 transitions. [2024-11-10 03:03:53,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 03:03:53,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2024-11-10 03:03:53,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:03:53,793 INFO L225 Difference]: With dead ends: 7632 [2024-11-10 03:03:53,794 INFO L226 Difference]: Without dead ends: 3866 [2024-11-10 03:03:53,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-10 03:03:53,802 INFO L432 NwaCegarLoop]: 4746 mSDtfsCounter, 5634 mSDsluCounter, 9489 mSDsCounter, 0 mSdLazyCounter, 3130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5634 SdHoareTripleChecker+Valid, 14235 SdHoareTripleChecker+Invalid, 3131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-10 03:03:53,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5634 Valid, 14235 Invalid, 3131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3130 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-10 03:03:53,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3866 states. [2024-11-10 03:03:53,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3866 to 3866. [2024-11-10 03:03:53,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3866 states, 3865 states have (on average 1.4985769728331177) internal successors, (5792), 3865 states have internal predecessors, (5792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 03:03:53,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3866 states to 3866 states and 5792 transitions. [2024-11-10 03:03:53,870 INFO L78 Accepts]: Start accepts. Automaton has 3866 states and 5792 transitions. Word has length 168 [2024-11-10 03:03:53,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:03:53,871 INFO L471 AbstractCegarLoop]: Abstraction has 3866 states and 5792 transitions. [2024-11-10 03:03:53,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 03:03:53,872 INFO L276 IsEmpty]: Start isEmpty. Operand 3866 states and 5792 transitions. [2024-11-10 03:03:53,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-10 03:03:53,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:03:53,875 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 03:03:53,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 03:03:53,876 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:03:53,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:03:53,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1392729762, now seen corresponding path program 1 times [2024-11-10 03:03:53,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:03:53,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847331658] [2024-11-10 03:03:53,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:03:53,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms