./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/aim-100-3-4-sat-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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/xcsp/aim-100-3-4-sat-2.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 2da21fd0a0575bfcde70dc39d1c3ef2fe30f2a859d46867ac783b28f6eb61449 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 03:13:07,358 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 03:13:07,419 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 03:13:07,425 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 03:13:07,428 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 03:13:07,452 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 03:13:07,452 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 03:13:07,453 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 03:13:07,453 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 03:13:07,455 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 03:13:07,455 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 03:13:07,456 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 03:13:07,456 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 03:13:07,456 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 03:13:07,457 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 03:13:07,460 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 03:13:07,460 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 03:13:07,460 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 03:13:07,460 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 03:13:07,461 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 03:13:07,461 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 03:13:07,461 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 03:13:07,461 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 03:13:07,463 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 03:13:07,463 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 03:13:07,463 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 03:13:07,463 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 03:13:07,464 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 03:13:07,464 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 03:13:07,464 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 03:13:07,465 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 03:13:07,465 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 03:13:07,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:13:07,466 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 03:13:07,466 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 03:13:07,466 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 03:13:07,467 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 03:13:07,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 03:13:07,467 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 03:13:07,467 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 03:13:07,467 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 03:13:07,476 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 03:13:07,476 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2da21fd0a0575bfcde70dc39d1c3ef2fe30f2a859d46867ac783b28f6eb61449 [2024-11-22 03:13:07,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 03:13:07,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 03:13:07,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 03:13:07,734 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 03:13:07,735 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 03:13:07,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/aim-100-3-4-sat-2.c [2024-11-22 03:13:08,921 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 03:13:09,134 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 03:13:09,135 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/aim-100-3-4-sat-2.c [2024-11-22 03:13:09,145 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/609d70c72/530a2af189ae458089737146e5b2a610/FLAG56c9b0175 [2024-11-22 03:13:09,492 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/609d70c72/530a2af189ae458089737146e5b2a610 [2024-11-22 03:13:09,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 03:13:09,495 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 03:13:09,501 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 03:13:09,501 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 03:13:09,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 03:13:09,505 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:13:09" (1/1) ... [2024-11-22 03:13:09,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72b850bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:09, skipping insertion in model container [2024-11-22 03:13:09,508 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:13:09" (1/1) ... [2024-11-22 03:13:09,542 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 03:13:09,858 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/xcsp/aim-100-3-4-sat-2.c[29129,29142] [2024-11-22 03:13:09,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:13:09,899 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 03:13:09,996 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/xcsp/aim-100-3-4-sat-2.c[29129,29142] [2024-11-22 03:13:10,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:13:10,036 INFO L204 MainTranslator]: Completed translation [2024-11-22 03:13:10,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:10 WrapperNode [2024-11-22 03:13:10,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 03:13:10,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 03:13:10,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 03:13:10,037 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 03:13:10,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:10" (1/1) ... [2024-11-22 03:13:10,086 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:10" (1/1) ... [2024-11-22 03:13:10,398 INFO L138 Inliner]: procedures = 13, calls = 523, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6640 [2024-11-22 03:13:10,398 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 03:13:10,399 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 03:13:10,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 03:13:10,399 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 03:13:10,407 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:10" (1/1) ... [2024-11-22 03:13:10,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:10" (1/1) ... [2024-11-22 03:13:10,460 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:10" (1/1) ... [2024-11-22 03:13:10,591 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]. [2024-11-22 03:13:10,591 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:10" (1/1) ... [2024-11-22 03:13:10,591 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:10" (1/1) ... [2024-11-22 03:13:10,710 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:10" (1/1) ... [2024-11-22 03:13:10,735 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:10" (1/1) ... [2024-11-22 03:13:10,760 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:10" (1/1) ... [2024-11-22 03:13:10,834 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:10" (1/1) ... [2024-11-22 03:13:10,874 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 03:13:10,875 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 03:13:10,876 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 03:13:10,876 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 03:13:10,877 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:10" (1/1) ... [2024-11-22 03:13:10,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:13:10,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:13:10,905 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) [2024-11-22 03:13:10,907 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 [2024-11-22 03:13:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 03:13:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 03:13:10,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 03:13:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 03:13:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-22 03:13:10,942 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-22 03:13:11,106 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 03:13:11,107 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 03:13:17,233 INFO L? ?]: Removed 1460 outVars from TransFormulas that were not future-live. [2024-11-22 03:13:17,233 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 03:13:17,282 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 03:13:17,283 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 03:13:17,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:13:17 BoogieIcfgContainer [2024-11-22 03:13:17,283 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 03:13:17,285 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 03:13:17,285 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 03:13:17,287 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 03:13:17,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:13:09" (1/3) ... [2024-11-22 03:13:17,288 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58038ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:13:17, skipping insertion in model container [2024-11-22 03:13:17,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:10" (2/3) ... [2024-11-22 03:13:17,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58038ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:13:17, skipping insertion in model container [2024-11-22 03:13:17,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:13:17" (3/3) ... [2024-11-22 03:13:17,291 INFO L112 eAbstractionObserver]: Analyzing ICFG aim-100-3-4-sat-2.c [2024-11-22 03:13:17,305 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 03:13:17,305 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 03:13:17,402 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 03:13:17,409 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;@761224af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 03:13:17,409 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 03:13:17,419 INFO L276 IsEmpty]: Start isEmpty. Operand has 3046 states, 2527 states have (on average 1.555599525128611) internal successors, (3931), 2528 states have internal predecessors, (3931), 516 states have call successors, (516), 1 states have call predecessors, (516), 1 states have return successors, (516), 516 states have call predecessors, (516), 516 states have call successors, (516) [2024-11-22 03:13:17,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3701 [2024-11-22 03:13:17,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:13:17,572 INFO L215 NwaCegarLoop]: trace histogram [516, 516, 516, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:13:17,573 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:13:17,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:13:17,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1486380527, now seen corresponding path program 1 times [2024-11-22 03:13:17,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:13:17,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924992053] [2024-11-22 03:13:17,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:13:17,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:13:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:13:19,669 INFO L134 CoverageAnalysis]: Checked inductivity of 531480 backedges. 0 proven. 1030 refuted. 0 times theorem prover too weak. 530450 trivial. 0 not checked. [2024-11-22 03:13:19,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:13:19,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924992053] [2024-11-22 03:13:19,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924992053] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:13:19,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653886250] [2024-11-22 03:13:19,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:13:19,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:13:19,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:13:19,676 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) [2024-11-22 03:13:19,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 03:13:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:13:20,714 INFO L255 TraceCheckSpWp]: Trace formula consists of 7289 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 03:13:20,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:13:20,989 INFO L134 CoverageAnalysis]: Checked inductivity of 531480 backedges. 1030 proven. 0 refuted. 0 times theorem prover too weak. 530450 trivial. 0 not checked. [2024-11-22 03:13:20,989 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:13:20,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653886250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:13:20,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:13:20,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 03:13:20,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501301272] [2024-11-22 03:13:20,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:13:21,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 03:13:21,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:13:21,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 03:13:21,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 03:13:21,030 INFO L87 Difference]: Start difference. First operand has 3046 states, 2527 states have (on average 1.555599525128611) internal successors, (3931), 2528 states have internal predecessors, (3931), 516 states have call successors, (516), 1 states have call predecessors, (516), 1 states have return successors, (516), 516 states have call predecessors, (516), 516 states have call successors, (516) Second operand has 2 states, 2 states have (on average 562.5) internal successors, (1125), 2 states have internal predecessors, (1125), 2 states have call successors, (516), 2 states have call predecessors, (516), 1 states have return successors, (516), 1 states have call predecessors, (516), 2 states have call successors, (516) [2024-11-22 03:13:21,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:13:21,173 INFO L93 Difference]: Finished difference Result 6086 states and 10436 transitions. [2024-11-22 03:13:21,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 03:13:21,177 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 562.5) internal successors, (1125), 2 states have internal predecessors, (1125), 2 states have call successors, (516), 2 states have call predecessors, (516), 1 states have return successors, (516), 1 states have call predecessors, (516), 2 states have call successors, (516) Word has length 3700 [2024-11-22 03:13:21,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:13:21,202 INFO L225 Difference]: With dead ends: 6086 [2024-11-22 03:13:21,202 INFO L226 Difference]: Without dead ends: 3043 [2024-11-22 03:13:21,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3701 GetRequests, 3701 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 03:13:21,216 INFO L432 NwaCegarLoop]: 4959 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4959 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:13:21,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4959 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:13:21,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3043 states. [2024-11-22 03:13:21,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3043 to 3043. [2024-11-22 03:13:21,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3043 states, 2525 states have (on average 1.5552475247524753) internal successors, (3927), 2525 states have internal predecessors, (3927), 516 states have call successors, (516), 1 states have call predecessors, (516), 1 states have return successors, (516), 516 states have call predecessors, (516), 516 states have call successors, (516) [2024-11-22 03:13:21,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 4959 transitions. [2024-11-22 03:13:21,498 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 4959 transitions. Word has length 3700 [2024-11-22 03:13:21,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:13:21,500 INFO L471 AbstractCegarLoop]: Abstraction has 3043 states and 4959 transitions. [2024-11-22 03:13:21,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 562.5) internal successors, (1125), 2 states have internal predecessors, (1125), 2 states have call successors, (516), 2 states have call predecessors, (516), 1 states have return successors, (516), 1 states have call predecessors, (516), 2 states have call successors, (516) [2024-11-22 03:13:21,502 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 4959 transitions. [2024-11-22 03:13:21,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3701 [2024-11-22 03:13:21,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:13:21,583 INFO L215 NwaCegarLoop]: trace histogram [516, 516, 516, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:13:21,599 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 03:13:21,784 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,SelfDestructingSolverStorable0 [2024-11-22 03:13:21,784 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:13:21,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:13:21,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1471744855, now seen corresponding path program 1 times [2024-11-22 03:13:21,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:13:21,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459107703] [2024-11-22 03:13:21,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:13:21,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:13:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:13:52,298 INFO L134 CoverageAnalysis]: Checked inductivity of 531480 backedges. 2124 proven. 13056 refuted. 0 times theorem prover too weak. 516300 trivial. 0 not checked. [2024-11-22 03:13:52,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:13:52,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459107703] [2024-11-22 03:13:52,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459107703] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:13:52,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335274353] [2024-11-22 03:13:52,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:13:52,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:13:52,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:13:52,306 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) [2024-11-22 03:13:52,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 03:13:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:13:53,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 7289 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-22 03:13:53,366 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:14:08,065 INFO L134 CoverageAnalysis]: Checked inductivity of 531480 backedges. 207156 proven. 7536 refuted. 0 times theorem prover too weak. 316788 trivial. 0 not checked. [2024-11-22 03:14:08,065 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:14:22,858 INFO L134 CoverageAnalysis]: Checked inductivity of 531480 backedges. 1416 proven. 10776 refuted. 0 times theorem prover too weak. 519288 trivial. 0 not checked. [2024-11-22 03:14:22,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335274353] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:14:22,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:14:22,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 16, 16] total 44 [2024-11-22 03:14:22,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002646472] [2024-11-22 03:14:22,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:14:22,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-22 03:14:22,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:14:22,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-22 03:14:22,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=1615, Unknown=0, NotChecked=0, Total=1892 [2024-11-22 03:14:22,876 INFO L87 Difference]: Start difference. First operand 3043 states and 4959 transitions. Second operand has 44 states, 30 states have (on average 93.53333333333333) internal successors, (2806), 31 states have internal predecessors, (2806), 37 states have call successors, (1454), 2 states have call predecessors, (1454), 3 states have return successors, (1456), 36 states have call predecessors, (1456), 37 states have call successors, (1456)