./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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/nla-digbench-scaling/egcd2-ll_valuebound1.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 9439004819e2e34c2ab2e87057bca89732394fc53eb02ecb90192bb8fac7667a --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 14:25:08,134 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 14:25:08,220 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 14:25:08,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 14:25:08,226 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 14:25:08,268 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 14:25:08,268 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 14:25:08,269 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 14:25:08,269 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 14:25:08,270 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 14:25:08,270 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 14:25:08,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 14:25:08,271 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 14:25:08,273 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 14:25:08,274 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 14:25:08,274 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 14:25:08,274 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 14:25:08,274 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 14:25:08,275 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 14:25:08,275 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 14:25:08,275 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 14:25:08,279 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 14:25:08,279 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 14:25:08,279 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 14:25:08,279 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 14:25:08,280 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 14:25:08,280 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 14:25:08,280 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 14:25:08,280 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 14:25:08,280 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 14:25:08,281 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 14:25:08,281 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 14:25:08,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:25:08,281 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 14:25:08,281 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 14:25:08,281 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 14:25:08,282 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 14:25:08,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 14:25:08,282 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 14:25:08,284 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 14:25:08,284 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 14:25:08,284 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 14:25:08,285 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9439004819e2e34c2ab2e87057bca89732394fc53eb02ecb90192bb8fac7667a [2024-11-08 14:25:08,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 14:25:08,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 14:25:08,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 14:25:08,569 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 14:25:08,569 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 14:25:08,570 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound1.c [2024-11-08 14:25:09,986 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 14:25:10,157 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 14:25:10,158 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound1.c [2024-11-08 14:25:10,165 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/637dfc790/aad336eb567d44e18754e4f12e186fc7/FLAGf689b3f9d [2024-11-08 14:25:10,177 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/637dfc790/aad336eb567d44e18754e4f12e186fc7 [2024-11-08 14:25:10,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 14:25:10,180 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 14:25:10,181 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 14:25:10,181 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 14:25:10,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 14:25:10,187 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:25:10" (1/1) ... [2024-11-08 14:25:10,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62c8ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:25:10, skipping insertion in model container [2024-11-08 14:25:10,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:25:10" (1/1) ... [2024-11-08 14:25:10,210 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 14:25:10,368 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/nla-digbench-scaling/egcd2-ll_valuebound1.c[490,503] [2024-11-08 14:25:10,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:25:10,413 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 14:25:10,427 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/nla-digbench-scaling/egcd2-ll_valuebound1.c[490,503] [2024-11-08 14:25:10,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:25:10,466 INFO L204 MainTranslator]: Completed translation [2024-11-08 14:25:10,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:25:10 WrapperNode [2024-11-08 14:25:10,467 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 14:25:10,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 14:25:10,469 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 14:25:10,469 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 14:25:10,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:25:10" (1/1) ... [2024-11-08 14:25:10,508 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:25:10" (1/1) ... [2024-11-08 14:25:10,529 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 79 [2024-11-08 14:25:10,531 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 14:25:10,532 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 14:25:10,532 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 14:25:10,533 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 14:25:10,547 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:25:10" (1/1) ... [2024-11-08 14:25:10,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:25:10" (1/1) ... [2024-11-08 14:25:10,560 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:25:10" (1/1) ... [2024-11-08 14:25:10,583 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]. [2024-11-08 14:25:10,584 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:25:10" (1/1) ... [2024-11-08 14:25:10,584 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:25:10" (1/1) ... [2024-11-08 14:25:10,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:25:10" (1/1) ... [2024-11-08 14:25:10,591 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:25:10" (1/1) ... [2024-11-08 14:25:10,594 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:25:10" (1/1) ... [2024-11-08 14:25:10,599 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:25:10" (1/1) ... [2024-11-08 14:25:10,602 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 14:25:10,603 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 14:25:10,603 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 14:25:10,603 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 14:25:10,606 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:25:10" (1/1) ... [2024-11-08 14:25:10,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:25:10,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:25:10,638 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) [2024-11-08 14:25:10,642 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 [2024-11-08 14:25:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 14:25:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 14:25:10,691 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 14:25:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 14:25:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 14:25:10,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 14:25:10,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 14:25:10,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 14:25:10,762 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 14:25:10,764 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 14:25:10,979 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-08 14:25:10,979 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 14:25:10,997 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 14:25:10,997 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 14:25:10,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:25:10 BoogieIcfgContainer [2024-11-08 14:25:10,997 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 14:25:11,000 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 14:25:11,001 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 14:25:11,004 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 14:25:11,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 02:25:10" (1/3) ... [2024-11-08 14:25:11,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d2e1b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:25:11, skipping insertion in model container [2024-11-08 14:25:11,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:25:10" (2/3) ... [2024-11-08 14:25:11,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d2e1b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:25:11, skipping insertion in model container [2024-11-08 14:25:11,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:25:10" (3/3) ... [2024-11-08 14:25:11,008 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd2-ll_valuebound1.c [2024-11-08 14:25:11,026 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 14:25:11,026 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 14:25:11,092 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 14:25:11,102 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;@5dd6af24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 14:25:11,102 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 14:25:11,106 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 21 states have internal predecessors, (28), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 14:25:11,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-08 14:25:11,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:25:11,115 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:25:11,115 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:25:11,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:25:11,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1146169762, now seen corresponding path program 1 times [2024-11-08 14:25:11,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:25:11,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275169196] [2024-11-08 14:25:11,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:25:11,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:25:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:11,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:25:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:11,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:25:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:11,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:25:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:11,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:25:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:11,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 14:25:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:11,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:25:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:11,351 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-08 14:25:11,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:25:11,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275169196] [2024-11-08 14:25:11,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275169196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:25:11,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:25:11,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 14:25:11,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98436655] [2024-11-08 14:25:11,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:25:11,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 14:25:11,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:25:11,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 14:25:11,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 14:25:11,385 INFO L87 Difference]: Start difference. First operand has 35 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 21 states have internal predecessors, (28), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:25:11,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:25:11,403 INFO L93 Difference]: Finished difference Result 67 states and 112 transitions. [2024-11-08 14:25:11,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 14:25:11,405 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2024-11-08 14:25:11,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:25:11,410 INFO L225 Difference]: With dead ends: 67 [2024-11-08 14:25:11,410 INFO L226 Difference]: Without dead ends: 31 [2024-11-08 14:25:11,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 14:25:11,416 INFO L432 NwaCegarLoop]: 46 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, 46 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 [2024-11-08 14:25:11,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:25:11,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-08 14:25:11,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-08 14:25:11,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 14:25:11,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2024-11-08 14:25:11,454 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 39 [2024-11-08 14:25:11,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:25:11,455 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2024-11-08 14:25:11,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:25:11,455 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2024-11-08 14:25:11,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-08 14:25:11,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:25:11,459 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:25:11,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 14:25:11,460 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:25:11,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:25:11,461 INFO L85 PathProgramCache]: Analyzing trace with hash 846808023, now seen corresponding path program 1 times [2024-11-08 14:25:11,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:25:11,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654396899] [2024-11-08 14:25:11,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:25:11,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:25:11,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:11,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:25:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:11,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:25:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:11,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:25:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:11,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:25:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:11,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 14:25:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:11,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:25:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:11,811 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-08 14:25:11,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:25:11,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654396899] [2024-11-08 14:25:11,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654396899] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:25:11,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046586616] [2024-11-08 14:25:11,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:25:11,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:25:11,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:25:11,815 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) [2024-11-08 14:25:11,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 14:25:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:11,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 14:25:11,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:25:12,177 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-08 14:25:12,177 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 14:25:12,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046586616] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:25:12,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 14:25:12,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9] total 11 [2024-11-08 14:25:12,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875063206] [2024-11-08 14:25:12,351 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 14:25:12,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 14:25:12,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:25:12,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 14:25:12,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:25:12,355 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand has 11 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-08 14:25:12,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:25:12,586 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2024-11-08 14:25:12,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:25:12,587 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 40 [2024-11-08 14:25:12,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:25:12,589 INFO L225 Difference]: With dead ends: 52 [2024-11-08 14:25:12,590 INFO L226 Difference]: Without dead ends: 44 [2024-11-08 14:25:12,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2024-11-08 14:25:12,591 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 35 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 14:25:12,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 173 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 14:25:12,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-08 14:25:12,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2024-11-08 14:25:12,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 23 states have (on average 1.173913043478261) internal successors, (27), 24 states have internal predecessors, (27), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-08 14:25:12,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 58 transitions. [2024-11-08 14:25:12,616 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 58 transitions. Word has length 40 [2024-11-08 14:25:12,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:25:12,616 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 58 transitions. [2024-11-08 14:25:12,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-08 14:25:12,617 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2024-11-08 14:25:12,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-08 14:25:12,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:25:12,618 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:25:12,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 14:25:12,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:25:12,820 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:25:12,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:25:12,820 INFO L85 PathProgramCache]: Analyzing trace with hash 481927254, now seen corresponding path program 1 times [2024-11-08 14:25:12,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:25:12,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120697579] [2024-11-08 14:25:12,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:25:12,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:25:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 14:25:12,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1563287794] [2024-11-08 14:25:12,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:25:12,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:25:12,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:25:12,855 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) [2024-11-08 14:25:12,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 14:25:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:12,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 14:25:12,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:25:12,977 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-08 14:25:12,978 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:25:12,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:25:12,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120697579] [2024-11-08 14:25:12,979 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 14:25:12,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563287794] [2024-11-08 14:25:12,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563287794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:25:12,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:25:12,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 14:25:12,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960844475] [2024-11-08 14:25:12,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:25:12,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 14:25:12,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:25:12,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 14:25:12,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 14:25:12,983 INFO L87 Difference]: Start difference. First operand 43 states and 58 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-08 14:25:13,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:25:13,037 INFO L93 Difference]: Finished difference Result 62 states and 86 transitions. [2024-11-08 14:25:13,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:25:13,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 41 [2024-11-08 14:25:13,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:25:13,039 INFO L225 Difference]: With dead ends: 62 [2024-11-08 14:25:13,039 INFO L226 Difference]: Without dead ends: 60 [2024-11-08 14:25:13,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:25:13,040 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 4 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:25:13,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 136 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:25:13,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-08 14:25:13,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 51. [2024-11-08 14:25:13,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 31 states have internal predecessors, (32), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 15 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 14:25:13,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 67 transitions. [2024-11-08 14:25:13,061 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 67 transitions. Word has length 41 [2024-11-08 14:25:13,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:25:13,061 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 67 transitions. [2024-11-08 14:25:13,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-08 14:25:13,061 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 67 transitions. [2024-11-08 14:25:13,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-08 14:25:13,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:25:13,063 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-08 14:25:13,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 14:25:13,266 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,SelfDestructingSolverStorable2 [2024-11-08 14:25:13,267 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:25:13,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:25:13,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1626076469, now seen corresponding path program 1 times [2024-11-08 14:25:13,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:25:13,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538576210] [2024-11-08 14:25:13,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:25:13,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:25:13,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 14:25:13,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1754256622] [2024-11-08 14:25:13,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:25:13,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:25:13,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:25:13,301 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:25:13,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 14:25:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:13,362 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 14:25:13,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:25:13,441 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-08 14:25:13,441 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:25:13,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:25:13,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538576210] [2024-11-08 14:25:13,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 14:25:13,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754256622] [2024-11-08 14:25:13,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754256622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:25:13,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:25:13,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 14:25:13,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316460002] [2024-11-08 14:25:13,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:25:13,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 14:25:13,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:25:13,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 14:25:13,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 14:25:13,444 INFO L87 Difference]: Start difference. First operand 51 states and 67 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 14:25:13,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:25:13,494 INFO L93 Difference]: Finished difference Result 58 states and 73 transitions. [2024-11-08 14:25:13,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:25:13,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 46 [2024-11-08 14:25:13,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:25:13,497 INFO L225 Difference]: With dead ends: 58 [2024-11-08 14:25:13,498 INFO L226 Difference]: Without dead ends: 56 [2024-11-08 14:25:13,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:25:13,499 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 5 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:25:13,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 146 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:25:13,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-08 14:25:13,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 55. [2024-11-08 14:25:13,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 34 states have internal predecessors, (35), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 15 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 14:25:13,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 70 transitions. [2024-11-08 14:25:13,516 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 70 transitions. Word has length 46 [2024-11-08 14:25:13,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:25:13,516 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 70 transitions. [2024-11-08 14:25:13,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 14:25:13,517 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2024-11-08 14:25:13,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-08 14:25:13,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:25:13,519 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:25:13,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 14:25:13,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:25:13,721 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:25:13,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:25:13,721 INFO L85 PathProgramCache]: Analyzing trace with hash -670274197, now seen corresponding path program 1 times [2024-11-08 14:25:13,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:25:13,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76988811] [2024-11-08 14:25:13,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:25:13,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:25:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 14:25:13,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1760841788] [2024-11-08 14:25:13,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:25:13,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:25:13,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:25:13,757 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:25:13,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 14:25:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:13,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-08 14:25:13,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:25:14,169 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 17 proven. 19 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-08 14:25:14,169 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 14:25:14,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:25:14,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76988811] [2024-11-08 14:25:14,229 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 14:25:14,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760841788] [2024-11-08 14:25:14,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760841788] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:25:14,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:25:14,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-08 14:25:14,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163824670] [2024-11-08 14:25:14,229 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 14:25:14,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 14:25:14,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:25:14,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 14:25:14,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:25:14,230 INFO L87 Difference]: Start difference. First operand 55 states and 70 transitions. Second operand has 12 states, 10 states have (on average 2.2) internal successors, (22), 8 states have internal predecessors, (22), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-08 14:25:14,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:25:14,421 INFO L93 Difference]: Finished difference Result 64 states and 78 transitions. [2024-11-08 14:25:14,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 14:25:14,421 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.2) internal successors, (22), 8 states have internal predecessors, (22), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 56 [2024-11-08 14:25:14,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:25:14,423 INFO L225 Difference]: With dead ends: 64 [2024-11-08 14:25:14,425 INFO L226 Difference]: Without dead ends: 62 [2024-11-08 14:25:14,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-11-08 14:25:14,426 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 25 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 14:25:14,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 153 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 14:25:14,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-08 14:25:14,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 59. [2024-11-08 14:25:14,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 37 states have internal predecessors, (38), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (17), 15 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 14:25:14,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 73 transitions. [2024-11-08 14:25:14,444 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 73 transitions. Word has length 56 [2024-11-08 14:25:14,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:25:14,444 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 73 transitions. [2024-11-08 14:25:14,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.2) internal successors, (22), 8 states have internal predecessors, (22), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-08 14:25:14,445 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 73 transitions. [2024-11-08 14:25:14,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 14:25:14,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:25:14,446 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 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] [2024-11-08 14:25:14,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 14:25:14,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:25:14,647 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:25:14,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:25:14,647 INFO L85 PathProgramCache]: Analyzing trace with hash 815241237, now seen corresponding path program 1 times [2024-11-08 14:25:14,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:25:14,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821270982] [2024-11-08 14:25:14,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:25:14,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:25:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 14:25:14,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1773266826] [2024-11-08 14:25:14,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:25:14,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:25:14,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:25:14,679 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:25:14,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 14:25:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:14,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 14:25:14,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:25:14,908 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 17 proven. 17 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-08 14:25:14,908 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 14:25:15,009 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-08 14:25:15,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:25:15,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821270982] [2024-11-08 14:25:15,010 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 14:25:15,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773266826] [2024-11-08 14:25:15,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773266826] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 14:25:15,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:25:15,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 12 [2024-11-08 14:25:15,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773646420] [2024-11-08 14:25:15,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:25:15,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 14:25:15,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:25:15,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 14:25:15,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:25:15,013 INFO L87 Difference]: Start difference. First operand 59 states and 73 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 14:25:15,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:25:15,060 INFO L93 Difference]: Finished difference Result 65 states and 78 transitions. [2024-11-08 14:25:15,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:25:15,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 63 [2024-11-08 14:25:15,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:25:15,062 INFO L225 Difference]: With dead ends: 65 [2024-11-08 14:25:15,062 INFO L226 Difference]: Without dead ends: 63 [2024-11-08 14:25:15,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 112 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:25:15,063 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 4 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:25:15,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 130 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:25:15,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-08 14:25:15,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 55. [2024-11-08 14:25:15,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 32 states have (on average 1.125) internal successors, (36), 33 states have internal predecessors, (36), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-08 14:25:15,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 67 transitions. [2024-11-08 14:25:15,075 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 67 transitions. Word has length 63 [2024-11-08 14:25:15,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:25:15,076 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 67 transitions. [2024-11-08 14:25:15,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 14:25:15,076 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 67 transitions. [2024-11-08 14:25:15,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-08 14:25:15,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:25:15,077 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 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] [2024-11-08 14:25:15,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 14:25:15,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:25:15,278 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:25:15,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:25:15,278 INFO L85 PathProgramCache]: Analyzing trace with hash -759965185, now seen corresponding path program 1 times [2024-11-08 14:25:15,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:25:15,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161472092] [2024-11-08 14:25:15,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:25:15,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:25:15,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:15,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:25:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:15,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:25:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:15,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:25:15,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:15,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:25:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:15,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 14:25:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:15,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:25:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:15,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:25:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:15,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 14:25:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:15,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 14:25:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:15,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 14:25:15,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:15,531 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-08 14:25:15,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:25:15,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161472092] [2024-11-08 14:25:15,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161472092] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:25:15,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104389588] [2024-11-08 14:25:15,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:25:15,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:25:15,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:25:15,534 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:25:15,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 14:25:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:15,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-08 14:25:15,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:25:16,006 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-08 14:25:16,007 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 14:25:16,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104389588] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:25:16,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 14:25:16,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 13] total 17 [2024-11-08 14:25:16,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842455628] [2024-11-08 14:25:16,237 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 14:25:16,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 14:25:16,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:25:16,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 14:25:16,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2024-11-08 14:25:16,238 INFO L87 Difference]: Start difference. First operand 55 states and 67 transitions. Second operand has 17 states, 16 states have (on average 2.125) internal successors, (34), 14 states have internal predecessors, (34), 10 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2024-11-08 14:25:16,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:25:16,604 INFO L93 Difference]: Finished difference Result 87 states and 108 transitions. [2024-11-08 14:25:16,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 14:25:16,605 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.125) internal successors, (34), 14 states have internal predecessors, (34), 10 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 65 [2024-11-08 14:25:16,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:25:16,606 INFO L225 Difference]: With dead ends: 87 [2024-11-08 14:25:16,606 INFO L226 Difference]: Without dead ends: 66 [2024-11-08 14:25:16,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=107, Invalid=595, Unknown=0, NotChecked=0, Total=702 [2024-11-08 14:25:16,608 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 43 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 14:25:16,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 210 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 14:25:16,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-08 14:25:16,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2024-11-08 14:25:16,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 38 states have internal predecessors, (41), 20 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-08 14:25:16,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 80 transitions. [2024-11-08 14:25:16,628 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 80 transitions. Word has length 65 [2024-11-08 14:25:16,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:25:16,628 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 80 transitions. [2024-11-08 14:25:16,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.125) internal successors, (34), 14 states have internal predecessors, (34), 10 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2024-11-08 14:25:16,629 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 80 transitions. [2024-11-08 14:25:16,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-08 14:25:16,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:25:16,630 INFO L215 NwaCegarLoop]: trace histogram [9, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:25:16,646 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 14:25:16,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:25:16,835 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:25:16,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:25:16,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1712962370, now seen corresponding path program 1 times [2024-11-08 14:25:16,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:25:16,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87686280] [2024-11-08 14:25:16,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:25:16,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:25:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 14:25:16,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2055180239] [2024-11-08 14:25:16,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:25:16,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:25:16,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:25:16,861 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:25:16,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 14:25:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:16,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-08 14:25:16,930 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:25:17,630 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 22 proven. 26 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-08 14:25:17,630 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 14:25:18,635 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 19 proven. 20 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-08 14:25:18,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:25:18,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87686280] [2024-11-08 14:25:18,636 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 14:25:18,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055180239] [2024-11-08 14:25:18,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055180239] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 14:25:18,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 14:25:18,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2024-11-08 14:25:18,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714118586] [2024-11-08 14:25:18,636 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 14:25:18,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-08 14:25:18,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:25:18,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-08 14:25:18,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=502, Unknown=0, NotChecked=0, Total=600 [2024-11-08 14:25:18,638 INFO L87 Difference]: Start difference. First operand 65 states and 80 transitions. Second operand has 25 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 19 states have internal predecessors, (39), 13 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2024-11-08 14:25:20,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:25:20,548 INFO L93 Difference]: Finished difference Result 147 states and 215 transitions. [2024-11-08 14:25:20,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-08 14:25:20,549 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 19 states have internal predecessors, (39), 13 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) Word has length 87 [2024-11-08 14:25:20,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:25:20,551 INFO L225 Difference]: With dead ends: 147 [2024-11-08 14:25:20,551 INFO L226 Difference]: Without dead ends: 145 [2024-11-08 14:25:20,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=426, Invalid=1644, Unknown=0, NotChecked=0, Total=2070 [2024-11-08 14:25:20,553 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 164 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 14:25:20,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 412 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 14:25:20,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-08 14:25:20,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 97. [2024-11-08 14:25:20,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 51 states have (on average 1.1764705882352942) internal successors, (60), 53 states have internal predecessors, (60), 37 states have call successors, (37), 8 states have call predecessors, (37), 8 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-08 14:25:20,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 133 transitions. [2024-11-08 14:25:20,589 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 133 transitions. Word has length 87 [2024-11-08 14:25:20,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:25:20,589 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 133 transitions. [2024-11-08 14:25:20,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 19 states have internal predecessors, (39), 13 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2024-11-08 14:25:20,589 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 133 transitions. [2024-11-08 14:25:20,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 14:25:20,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:25:20,591 INFO L215 NwaCegarLoop]: trace histogram [10, 9, 9, 6, 6, 6, 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] [2024-11-08 14:25:20,610 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-08 14:25:20,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:25:20,791 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:25:20,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:25:20,792 INFO L85 PathProgramCache]: Analyzing trace with hash 169494115, now seen corresponding path program 1 times [2024-11-08 14:25:20,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:25:20,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661997231] [2024-11-08 14:25:20,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:25:20,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:25:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 14:25:20,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [468574431] [2024-11-08 14:25:20,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:25:20,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:25:20,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:25:20,822 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:25:20,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 14:25:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:20,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-08 14:25:20,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:25:21,352 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 24 proven. 26 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 14:25:21,353 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 14:25:21,772 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-08 14:25:21,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:25:21,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661997231] [2024-11-08 14:25:21,773 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 14:25:21,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468574431] [2024-11-08 14:25:21,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468574431] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 14:25:21,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 14:25:21,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 22 [2024-11-08 14:25:21,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396539687] [2024-11-08 14:25:21,773 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 14:25:21,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-08 14:25:21,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:25:21,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-08 14:25:21,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2024-11-08 14:25:21,775 INFO L87 Difference]: Start difference. First operand 97 states and 133 transitions. Second operand has 22 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 11 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (29), 11 states have call predecessors, (29), 11 states have call successors, (29) [2024-11-08 14:25:22,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:25:22,665 INFO L93 Difference]: Finished difference Result 182 states and 270 transitions. [2024-11-08 14:25:22,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 14:25:22,666 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 11 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (29), 11 states have call predecessors, (29), 11 states have call successors, (29) Word has length 92 [2024-11-08 14:25:22,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:25:22,667 INFO L225 Difference]: With dead ends: 182 [2024-11-08 14:25:22,667 INFO L226 Difference]: Without dead ends: 176 [2024-11-08 14:25:22,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=269, Invalid=991, Unknown=0, NotChecked=0, Total=1260 [2024-11-08 14:25:22,668 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 95 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 14:25:22,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 469 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 14:25:22,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-08 14:25:22,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 147. [2024-11-08 14:25:22,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 79 states have (on average 1.2025316455696202) internal successors, (95), 82 states have internal predecessors, (95), 58 states have call successors, (58), 9 states have call predecessors, (58), 9 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 14:25:22,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 209 transitions. [2024-11-08 14:25:22,726 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 209 transitions. Word has length 92 [2024-11-08 14:25:22,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:25:22,727 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 209 transitions. [2024-11-08 14:25:22,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 11 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (29), 11 states have call predecessors, (29), 11 states have call successors, (29) [2024-11-08 14:25:22,727 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 209 transitions. [2024-11-08 14:25:22,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 14:25:22,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:25:22,729 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:25:22,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-08 14:25:22,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-08 14:25:22,933 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:25:22,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:25:22,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1037094417, now seen corresponding path program 1 times [2024-11-08 14:25:22,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:25:22,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902192875] [2024-11-08 14:25:22,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:25:22,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:25:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:23,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:25:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:23,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:25:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:23,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:25:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:23,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:25:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:23,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 14:25:23,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:23,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:25:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:23,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:25:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:23,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 14:25:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:23,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 14:25:23,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:23,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 14:25:23,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:23,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 14:25:23,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:23,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 14:25:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:23,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 14:25:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:23,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 14:25:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:23,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 14:25:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:23,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 14:25:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:23,251 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 39 proven. 12 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-08 14:25:23,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:25:23,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902192875] [2024-11-08 14:25:23,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902192875] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:25:23,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029275321] [2024-11-08 14:25:23,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:25:23,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:25:23,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:25:23,253 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:25:23,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 14:25:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:23,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 14:25:23,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:25:23,387 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 99 proven. 12 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-08 14:25:23,387 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 14:25:23,525 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 33 proven. 18 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-08 14:25:23,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029275321] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 14:25:23,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 14:25:23,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2024-11-08 14:25:23,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919082211] [2024-11-08 14:25:23,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 14:25:23,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 14:25:23,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:25:23,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 14:25:23,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:25:23,527 INFO L87 Difference]: Start difference. First operand 147 states and 209 transitions. Second operand has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 10 states have internal predecessors, (34), 7 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-11-08 14:25:23,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:25:23,686 INFO L93 Difference]: Finished difference Result 158 states and 218 transitions. [2024-11-08 14:25:23,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:25:23,687 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 10 states have internal predecessors, (34), 7 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) Word has length 98 [2024-11-08 14:25:23,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:25:23,688 INFO L225 Difference]: With dead ends: 158 [2024-11-08 14:25:23,688 INFO L226 Difference]: Without dead ends: 68 [2024-11-08 14:25:23,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 223 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-08 14:25:23,690 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 18 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:25:23,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 234 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:25:23,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-08 14:25:23,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-08 14:25:23,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 38 states have (on average 1.0263157894736843) internal successors, (39), 38 states have internal predecessors, (39), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-08 14:25:23,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 84 transitions. [2024-11-08 14:25:23,704 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 84 transitions. Word has length 98 [2024-11-08 14:25:23,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:25:23,704 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 84 transitions. [2024-11-08 14:25:23,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 10 states have internal predecessors, (34), 7 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-11-08 14:25:23,705 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 84 transitions. [2024-11-08 14:25:23,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-08 14:25:23,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:25:23,706 INFO L215 NwaCegarLoop]: trace histogram [17, 16, 16, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-08 14:25:23,721 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-08 14:25:23,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 14:25:23,911 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:25:23,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:25:23,911 INFO L85 PathProgramCache]: Analyzing trace with hash 649793148, now seen corresponding path program 2 times [2024-11-08 14:25:23,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:25:23,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133846330] [2024-11-08 14:25:23,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:25:23,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:25:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:25:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:25:24,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:25:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:25:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 14:25:24,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:25:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:25:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 14:25:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 14:25:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 14:25:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 14:25:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 14:25:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 14:25:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 14:25:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 14:25:24,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 14:25:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 14:25:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 14:25:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 14:25:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 14:25:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 14:25:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-08 14:25:24,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:25:24,178 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 34 proven. 51 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2024-11-08 14:25:24,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:25:24,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133846330] [2024-11-08 14:25:24,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133846330] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:25:24,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789967857] [2024-11-08 14:25:24,178 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 14:25:24,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:25:24,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:25:24,180 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:25:24,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 14:25:24,256 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 14:25:24,256 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 14:25:24,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 14:25:24,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:25:24,384 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 32 proven. 53 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2024-11-08 14:25:24,385 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 14:25:24,656 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 38 proven. 47 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2024-11-08 14:25:24,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789967857] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 14:25:24,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 14:25:24,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 12] total 21 [2024-11-08 14:25:24,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328085024] [2024-11-08 14:25:24,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 14:25:24,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 14:25:24,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:25:24,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 14:25:24,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2024-11-08 14:25:24,658 INFO L87 Difference]: Start difference. First operand 68 states and 84 transitions. Second operand has 21 states, 21 states have (on average 2.4285714285714284) internal successors, (51), 21 states have internal predecessors, (51), 16 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (52), 14 states have call predecessors, (52), 15 states have call successors, (52) [2024-11-08 14:25:24,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:25:24,985 INFO L93 Difference]: Finished difference Result 74 states and 95 transitions. [2024-11-08 14:25:24,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 14:25:24,986 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.4285714285714284) internal successors, (51), 21 states have internal predecessors, (51), 16 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (52), 14 states have call predecessors, (52), 15 states have call successors, (52) Word has length 131 [2024-11-08 14:25:24,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:25:24,986 INFO L225 Difference]: With dead ends: 74 [2024-11-08 14:25:24,986 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 14:25:24,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 292 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2024-11-08 14:25:24,988 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 24 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 14:25:24,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 381 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 14:25:24,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 14:25:24,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 14:25:24,988 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) [2024-11-08 14:25:24,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 14:25:24,988 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 131 [2024-11-08 14:25:24,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:25:24,989 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 14:25:24,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.4285714285714284) internal successors, (51), 21 states have internal predecessors, (51), 16 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (52), 14 states have call predecessors, (52), 15 states have call successors, (52) [2024-11-08 14:25:24,989 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 14:25:24,989 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 14:25:24,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 14:25:25,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-08 14:25:25,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-08 14:25:25,195 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:25:25,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 14:25:25,835 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 14:25:25,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 02:25:25 BoogieIcfgContainer [2024-11-08 14:25:25,858 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 14:25:25,859 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 14:25:25,859 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 14:25:25,859 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 14:25:25,859 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:25:10" (3/4) ... [2024-11-08 14:25:25,861 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 14:25:25,865 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-08 14:25:25,865 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-08 14:25:25,868 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-08 14:25:25,869 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 14:25:25,869 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 14:25:25,869 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 14:25:25,959 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 14:25:25,960 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 14:25:25,960 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 14:25:25,960 INFO L158 Benchmark]: Toolchain (without parser) took 15780.97ms. Allocated memory was 138.4MB in the beginning and 299.9MB in the end (delta: 161.5MB). Free memory was 68.2MB in the beginning and 109.1MB in the end (delta: -40.9MB). Peak memory consumption was 122.9MB. Max. memory is 16.1GB. [2024-11-08 14:25:25,961 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 138.4MB. Free memory is still 102.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 14:25:25,961 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.80ms. Allocated memory is still 138.4MB. Free memory was 68.0MB in the beginning and 55.1MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 14:25:25,961 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.54ms. Allocated memory was 138.4MB in the beginning and 201.3MB in the end (delta: 62.9MB). Free memory was 55.1MB in the beginning and 171.7MB in the end (delta: -116.6MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2024-11-08 14:25:25,961 INFO L158 Benchmark]: Boogie Preprocessor took 70.22ms. Allocated memory is still 201.3MB. Free memory was 171.7MB in the beginning and 169.9MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 14:25:25,962 INFO L158 Benchmark]: RCFGBuilder took 394.42ms. Allocated memory is still 201.3MB. Free memory was 169.9MB in the beginning and 156.7MB in the end (delta: 13.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 14:25:25,962 INFO L158 Benchmark]: TraceAbstraction took 14857.87ms. Allocated memory was 201.3MB in the beginning and 299.9MB in the end (delta: 98.6MB). Free memory was 156.0MB in the beginning and 114.4MB in the end (delta: 41.6MB). Peak memory consumption was 140.9MB. Max. memory is 16.1GB. [2024-11-08 14:25:25,962 INFO L158 Benchmark]: Witness Printer took 101.39ms. Allocated memory is still 299.9MB. Free memory was 114.4MB in the beginning and 109.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 14:25:25,966 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 138.4MB. Free memory is still 102.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.80ms. Allocated memory is still 138.4MB. Free memory was 68.0MB in the beginning and 55.1MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.54ms. Allocated memory was 138.4MB in the beginning and 201.3MB in the end (delta: 62.9MB). Free memory was 55.1MB in the beginning and 171.7MB in the end (delta: -116.6MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.22ms. Allocated memory is still 201.3MB. Free memory was 171.7MB in the beginning and 169.9MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 394.42ms. Allocated memory is still 201.3MB. Free memory was 169.9MB in the beginning and 156.7MB in the end (delta: 13.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 14857.87ms. Allocated memory was 201.3MB in the beginning and 299.9MB in the end (delta: 98.6MB). Free memory was 156.0MB in the beginning and 114.4MB in the end (delta: 41.6MB). Peak memory consumption was 140.9MB. Max. memory is 16.1GB. * Witness Printer took 101.39ms. Allocated memory is still 299.9MB. Free memory was 114.4MB in the beginning and 109.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. 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: 13]: 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 3 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.1s, OverallIterations: 11, TraceHistogramMax: 17, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 439 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 417 mSDsluCounter, 2490 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2084 mSDsCounter, 470 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1728 IncrementalHoareTripleChecker+Invalid, 2198 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 470 mSolverCounterUnsat, 406 mSDtfsCounter, 1728 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1411 GetRequests, 1214 SyntacticMatches, 6 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 902 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147occurred in iteration=9, InterpolantAutomatonStates: 120, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 100 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 1477 NumberOfCodeBlocks, 1477 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1543 ConstructedInterpolants, 0 QuantifiedInterpolants, 5370 SizeOfPredicates, 25 NumberOfNonLiveVariables, 1767 ConjunctsInSsa, 231 ConjunctsInUnsatCore, 20 InterpolantComputations, 4 PerfectInterpolantSequences, 3902/4266 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: 47]: Loop Invariant Derived loop invariant: ((((((((((((b == 1) && (p == 1)) && (c == 1)) && (yy == 1)) && (a == 1)) && (x == 1)) && (r == 0)) && (q == 0)) && (y == 1)) && (k == 0)) && (s == 1)) || (((((((((((c == 0) && (k == 1)) && (b == 1)) && (p == 1)) && (yy == 1)) && (a == 1)) && (x == 1)) && (r == 0)) && (q == 0)) && (y == 1)) && (s == 1))) - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: ((((((((((b == 1) && (p == 1)) && (yy == 1)) && (a == 1)) && (x == 1)) && (r == 0)) && (q == 0)) && (y == 1)) && (s == 1)) || (((((((__int128) q + s) == 0) && (b == 0)) && (x == 1)) && (y == 1)) && ((((__int128) r * y) + ((__int128) p * x)) == a))) - ProcedureContractResult [Line: 7]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (cond != 0) - ProcedureContractResult [Line: 10]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (1 <= cond) Ensures: (1 <= cond) RESULT: Ultimate proved your program to be correct! [2024-11-08 14:25:25,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE