./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fa88b8fffb6d00fe351813dff04ff095de9add832c65b297aee5013953d8af16 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 22:04:24,233 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 22:04:24,292 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-12 22:04:24,298 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 22:04:24,300 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 22:04:24,322 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 22:04:24,327 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 22:04:24,327 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 22:04:24,327 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 22:04:24,328 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 22:04:24,329 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 22:04:24,329 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 22:04:24,344 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 22:04:24,345 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 22:04:24,346 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 22:04:24,346 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 22:04:24,346 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 22:04:24,347 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 22:04:24,347 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 22:04:24,347 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 22:04:24,347 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 22:04:24,348 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 22:04:24,348 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 22:04:24,348 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 22:04:24,348 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 22:04:24,349 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 22:04:24,349 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 22:04:24,349 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 22:04:24,349 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 22:04:24,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 22:04:24,350 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 22:04:24,350 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 22:04:24,350 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 22:04:24,351 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 22:04:24,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 22:04:24,351 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 22:04:24,351 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 22:04:24,351 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 22:04:24,352 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 22:04:24,352 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa88b8fffb6d00fe351813dff04ff095de9add832c65b297aee5013953d8af16 [2024-10-12 22:04:24,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 22:04:24,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 22:04:24,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 22:04:24,599 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 22:04:24,600 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 22:04:24,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c [2024-10-12 22:04:25,872 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 22:04:26,084 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 22:04:26,084 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c [2024-10-12 22:04:26,094 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd0bf77d5/ea9f02ed03514745b6c586ac5cd59b43/FLAG3a837cf19 [2024-10-12 22:04:26,105 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd0bf77d5/ea9f02ed03514745b6c586ac5cd59b43 [2024-10-12 22:04:26,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 22:04:26,108 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 22:04:26,109 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 22:04:26,109 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 22:04:26,113 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 22:04:26,114 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:04:26" (1/1) ... [2024-10-12 22:04:26,115 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16748cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:26, skipping insertion in model container [2024-10-12 22:04:26,115 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:04:26" (1/1) ... [2024-10-12 22:04:26,151 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 22:04:26,309 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c[1173,1186] [2024-10-12 22:04:26,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 22:04:26,535 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 22:04:26,543 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c[1173,1186] [2024-10-12 22:04:26,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 22:04:26,641 INFO L204 MainTranslator]: Completed translation [2024-10-12 22:04:26,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:26 WrapperNode [2024-10-12 22:04:26,641 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 22:04:26,642 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 22:04:26,642 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 22:04:26,642 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 22:04:26,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:26" (1/1) ... [2024-10-12 22:04:26,680 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:26" (1/1) ... [2024-10-12 22:04:27,097 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3502 [2024-10-12 22:04:27,097 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 22:04:27,098 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 22:04:27,099 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 22:04:27,099 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 22:04:27,107 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:26" (1/1) ... [2024-10-12 22:04:27,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:26" (1/1) ... [2024-10-12 22:04:27,181 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:26" (1/1) ... [2024-10-12 22:04:27,373 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]. [2024-10-12 22:04:27,374 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:26" (1/1) ... [2024-10-12 22:04:27,374 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:26" (1/1) ... [2024-10-12 22:04:27,470 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:26" (1/1) ... [2024-10-12 22:04:27,511 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:26" (1/1) ... [2024-10-12 22:04:27,546 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:26" (1/1) ... [2024-10-12 22:04:27,575 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:26" (1/1) ... [2024-10-12 22:04:27,615 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 22:04:27,617 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 22:04:27,617 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 22:04:27,617 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 22:04:27,618 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:26" (1/1) ... [2024-10-12 22:04:27,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 22:04:27,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 22:04:27,646 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) [2024-10-12 22:04:27,648 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 [2024-10-12 22:04:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 22:04:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 22:04:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 22:04:27,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 22:04:27,882 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 22:04:27,884 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 22:04:30,389 INFO L? ?]: Removed 1945 outVars from TransFormulas that were not future-live. [2024-10-12 22:04:30,389 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 22:04:30,438 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 22:04:30,438 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 22:04:30,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:04:30 BoogieIcfgContainer [2024-10-12 22:04:30,439 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 22:04:30,440 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 22:04:30,440 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 22:04:30,443 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 22:04:30,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:04:26" (1/3) ... [2024-10-12 22:04:30,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fdd0dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:04:30, skipping insertion in model container [2024-10-12 22:04:30,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:26" (2/3) ... [2024-10-12 22:04:30,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fdd0dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:04:30, skipping insertion in model container [2024-10-12 22:04:30,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:04:30" (3/3) ... [2024-10-12 22:04:30,445 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bakery.2.prop1-func-interl.c [2024-10-12 22:04:30,457 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 22:04:30,457 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 22:04:30,540 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 22:04:30,553 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;@1a103a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 22:04:30,553 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 22:04:30,568 INFO L276 IsEmpty]: Start isEmpty. Operand has 1211 states, 1209 states have (on average 1.500413564929694) internal successors, (1814), 1210 states have internal predecessors, (1814), 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) [2024-10-12 22:04:30,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-12 22:04:30,583 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:04:30,584 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:04:30,584 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:04:30,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:04:30,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1580999051, now seen corresponding path program 1 times [2024-10-12 22:04:30,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:04:30,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617112937] [2024-10-12 22:04:30,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:04:30,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:04:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:04:31,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:04:31,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:04:31,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617112937] [2024-10-12 22:04:31,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617112937] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:04:31,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:04:31,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:04:31,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34018927] [2024-10-12 22:04:31,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:04:31,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:04:31,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:04:31,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:04:31,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:04:31,346 INFO L87 Difference]: Start difference. First operand has 1211 states, 1209 states have (on average 1.500413564929694) internal successors, (1814), 1210 states have internal predecessors, (1814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2024-10-12 22:04:31,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:04:31,483 INFO L93 Difference]: Finished difference Result 2346 states and 3516 transitions. [2024-10-12 22:04:31,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:04:31,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-10-12 22:04:31,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:04:31,503 INFO L225 Difference]: With dead ends: 2346 [2024-10-12 22:04:31,504 INFO L226 Difference]: Without dead ends: 1212 [2024-10-12 22:04:31,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:04:31,510 INFO L432 NwaCegarLoop]: 1809 mSDtfsCounter, 0 mSDsluCounter, 3613 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5422 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:04:31,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5422 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:04:31,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2024-10-12 22:04:31,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 1212. [2024-10-12 22:04:31,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1212 states, 1211 states have (on average 1.4979355904211396) internal successors, (1814), 1211 states have internal predecessors, (1814), 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) [2024-10-12 22:04:31,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1814 transitions. [2024-10-12 22:04:31,615 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1814 transitions. Word has length 76 [2024-10-12 22:04:31,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:04:31,616 INFO L471 AbstractCegarLoop]: Abstraction has 1212 states and 1814 transitions. [2024-10-12 22:04:31,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2024-10-12 22:04:31,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1814 transitions. [2024-10-12 22:04:31,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-12 22:04:31,619 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:04:31,619 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:04:31,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 22:04:31,620 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:04:31,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:04:31,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1768025946, now seen corresponding path program 1 times [2024-10-12 22:04:31,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:04:31,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296239273] [2024-10-12 22:04:31,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:04:31,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:04:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:04:31,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:04:31,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:04:31,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296239273] [2024-10-12 22:04:31,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296239273] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:04:31,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:04:31,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:04:31,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445652914] [2024-10-12 22:04:31,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:04:31,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:04:31,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:04:31,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:04:31,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:04:31,809 INFO L87 Difference]: Start difference. First operand 1212 states and 1814 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2024-10-12 22:04:31,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:04:31,857 INFO L93 Difference]: Finished difference Result 2349 states and 3516 transitions. [2024-10-12 22:04:31,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:04:31,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-12 22:04:31,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:04:31,862 INFO L225 Difference]: With dead ends: 2349 [2024-10-12 22:04:31,862 INFO L226 Difference]: Without dead ends: 1214 [2024-10-12 22:04:31,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:04:31,865 INFO L432 NwaCegarLoop]: 1809 mSDtfsCounter, 0 mSDsluCounter, 3610 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5419 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:04:31,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5419 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:04:31,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2024-10-12 22:04:31,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1214. [2024-10-12 22:04:31,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1214 states, 1213 states have (on average 1.4971145919208573) internal successors, (1816), 1213 states have internal predecessors, (1816), 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) [2024-10-12 22:04:31,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 1816 transitions. [2024-10-12 22:04:31,890 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 1816 transitions. Word has length 77 [2024-10-12 22:04:31,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:04:31,892 INFO L471 AbstractCegarLoop]: Abstraction has 1214 states and 1816 transitions. [2024-10-12 22:04:31,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2024-10-12 22:04:31,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 1816 transitions. [2024-10-12 22:04:31,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-12 22:04:31,897 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:04:31,897 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:04:31,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 22:04:31,897 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:04:31,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:04:31,898 INFO L85 PathProgramCache]: Analyzing trace with hash -2123735996, now seen corresponding path program 1 times [2024-10-12 22:04:31,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:04:31,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436586067] [2024-10-12 22:04:31,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:04:31,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:04:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:04:32,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:04:32,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:04:32,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436586067] [2024-10-12 22:04:32,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436586067] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:04:32,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:04:32,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:04:32,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473084124] [2024-10-12 22:04:32,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:04:32,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:04:32,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:04:32,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:04:32,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:04:32,119 INFO L87 Difference]: Start difference. First operand 1214 states and 1816 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-10-12 22:04:32,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:04:32,180 INFO L93 Difference]: Finished difference Result 2353 states and 3520 transitions. [2024-10-12 22:04:32,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:04:32,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-12 22:04:32,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:04:32,185 INFO L225 Difference]: With dead ends: 2353 [2024-10-12 22:04:32,185 INFO L226 Difference]: Without dead ends: 1216 [2024-10-12 22:04:32,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:04:32,189 INFO L432 NwaCegarLoop]: 1809 mSDtfsCounter, 0 mSDsluCounter, 3604 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5413 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:04:32,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5413 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:04:32,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2024-10-12 22:04:32,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1216. [2024-10-12 22:04:32,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1216 states, 1215 states have (on average 1.4962962962962962) internal successors, (1818), 1215 states have internal predecessors, (1818), 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) [2024-10-12 22:04:32,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1818 transitions. [2024-10-12 22:04:32,215 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1818 transitions. Word has length 78 [2024-10-12 22:04:32,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:04:32,216 INFO L471 AbstractCegarLoop]: Abstraction has 1216 states and 1818 transitions. [2024-10-12 22:04:32,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-10-12 22:04:32,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1818 transitions. [2024-10-12 22:04:32,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-12 22:04:32,221 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:04:32,221 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:04:32,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 22:04:32,222 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:04:32,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:04:32,222 INFO L85 PathProgramCache]: Analyzing trace with hash -502419167, now seen corresponding path program 1 times [2024-10-12 22:04:32,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:04:32,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410931321] [2024-10-12 22:04:32,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:04:32,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:04:32,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:04:32,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:04:32,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:04:32,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410931321] [2024-10-12 22:04:32,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410931321] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:04:32,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:04:32,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:04:32,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822864332] [2024-10-12 22:04:32,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:04:32,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:04:32,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:04:32,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:04:32,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:04:32,418 INFO L87 Difference]: Start difference. First operand 1216 states and 1818 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-10-12 22:04:32,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:04:32,466 INFO L93 Difference]: Finished difference Result 2363 states and 3532 transitions. [2024-10-12 22:04:32,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:04:32,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-10-12 22:04:32,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:04:32,473 INFO L225 Difference]: With dead ends: 2363 [2024-10-12 22:04:32,473 INFO L226 Difference]: Without dead ends: 1224 [2024-10-12 22:04:32,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:04:32,478 INFO L432 NwaCegarLoop]: 1809 mSDtfsCounter, 3 mSDsluCounter, 3604 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5413 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:04:32,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5413 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:04:32,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2024-10-12 22:04:32,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1220. [2024-10-12 22:04:32,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 1219 states have (on average 1.4963084495488106) internal successors, (1824), 1219 states have internal predecessors, (1824), 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) [2024-10-12 22:04:32,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1824 transitions. [2024-10-12 22:04:32,498 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1824 transitions. Word has length 79 [2024-10-12 22:04:32,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:04:32,499 INFO L471 AbstractCegarLoop]: Abstraction has 1220 states and 1824 transitions. [2024-10-12 22:04:32,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-10-12 22:04:32,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1824 transitions. [2024-10-12 22:04:32,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-12 22:04:32,500 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:04:32,502 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:04:32,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 22:04:32,502 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:04:32,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:04:32,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1575898627, now seen corresponding path program 1 times [2024-10-12 22:04:32,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:04:32,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937681185] [2024-10-12 22:04:32,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:04:32,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:04:32,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:04:32,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:04:32,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:04:32,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937681185] [2024-10-12 22:04:32,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937681185] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:04:32,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:04:32,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:04:32,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572827013] [2024-10-12 22:04:32,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:04:32,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 22:04:32,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:04:32,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 22:04:32,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:04:32,907 INFO L87 Difference]: Start difference. First operand 1220 states and 1824 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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) [2024-10-12 22:04:33,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:04:33,871 INFO L93 Difference]: Finished difference Result 2375 states and 3551 transitions. [2024-10-12 22:04:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 22:04:33,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-10-12 22:04:33,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:04:33,875 INFO L225 Difference]: With dead ends: 2375 [2024-10-12 22:04:33,876 INFO L226 Difference]: Without dead ends: 1232 [2024-10-12 22:04:33,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-12 22:04:33,877 INFO L432 NwaCegarLoop]: 1378 mSDtfsCounter, 1761 mSDsluCounter, 4123 mSDsCounter, 0 mSdLazyCounter, 1746 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1761 SdHoareTripleChecker+Valid, 5501 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-12 22:04:33,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1761 Valid, 5501 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1746 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-12 22:04:33,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2024-10-12 22:04:33,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1230. [2024-10-12 22:04:33,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 1229 states have (on average 1.4938974776240845) internal successors, (1836), 1229 states have internal predecessors, (1836), 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) [2024-10-12 22:04:33,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1836 transitions. [2024-10-12 22:04:33,895 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1836 transitions. Word has length 80 [2024-10-12 22:04:33,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:04:33,895 INFO L471 AbstractCegarLoop]: Abstraction has 1230 states and 1836 transitions. [2024-10-12 22:04:33,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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) [2024-10-12 22:04:33,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1836 transitions. [2024-10-12 22:04:33,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-12 22:04:33,896 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:04:33,897 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:04:33,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 22:04:33,897 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:04:33,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:04:33,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1288870427, now seen corresponding path program 1 times [2024-10-12 22:04:33,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:04:33,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440925652] [2024-10-12 22:04:33,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:04:33,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:04:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:04:34,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:04:34,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:04:34,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440925652] [2024-10-12 22:04:34,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440925652] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:04:34,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:04:34,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:04:34,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268576187] [2024-10-12 22:04:34,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:04:34,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:04:34,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:04:34,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:04:34,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:04:34,125 INFO L87 Difference]: Start difference. First operand 1230 states and 1836 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-10-12 22:04:35,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:04:35,414 INFO L93 Difference]: Finished difference Result 3517 states and 5251 transitions. [2024-10-12 22:04:35,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 22:04:35,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-10-12 22:04:35,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:04:35,421 INFO L225 Difference]: With dead ends: 3517 [2024-10-12 22:04:35,422 INFO L226 Difference]: Without dead ends: 2364 [2024-10-12 22:04:35,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:04:35,424 INFO L432 NwaCegarLoop]: 1395 mSDtfsCounter, 1727 mSDsluCounter, 4083 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1727 SdHoareTripleChecker+Valid, 5478 SdHoareTripleChecker+Invalid, 1656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-12 22:04:35,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1727 Valid, 5478 Invalid, 1656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1655 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-12 22:04:35,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2364 states. [2024-10-12 22:04:35,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2364 to 1288. [2024-10-12 22:04:35,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 1287 states have (on average 1.491841491841492) internal successors, (1920), 1287 states have internal predecessors, (1920), 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) [2024-10-12 22:04:35,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1920 transitions. [2024-10-12 22:04:35,448 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1920 transitions. Word has length 81 [2024-10-12 22:04:35,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:04:35,448 INFO L471 AbstractCegarLoop]: Abstraction has 1288 states and 1920 transitions. [2024-10-12 22:04:35,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-10-12 22:04:35,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1920 transitions. [2024-10-12 22:04:35,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-12 22:04:35,449 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:04:35,449 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:04:35,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 22:04:35,450 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:04:35,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:04:35,450 INFO L85 PathProgramCache]: Analyzing trace with hash 667810974, now seen corresponding path program 1 times [2024-10-12 22:04:35,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:04:35,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371148183] [2024-10-12 22:04:35,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:04:35,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:04:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 22:04:35,480 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 22:04:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 22:04:35,541 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 22:04:35,542 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-12 22:04:35,542 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 22:04:35,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 22:04:35,546 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:04:35,590 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 22:04:35,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:04:35 BoogieIcfgContainer [2024-10-12 22:04:35,592 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 22:04:35,592 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 22:04:35,592 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 22:04:35,592 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 22:04:35,593 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:04:30" (3/4) ... [2024-10-12 22:04:35,594 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-12 22:04:35,595 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 22:04:35,596 INFO L158 Benchmark]: Toolchain (without parser) took 9487.97ms. Allocated memory was 153.1MB in the beginning and 830.5MB in the end (delta: 677.4MB). Free memory was 80.7MB in the beginning and 346.9MB in the end (delta: -266.2MB). Peak memory consumption was 413.3MB. Max. memory is 16.1GB. [2024-10-12 22:04:35,596 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 153.1MB. Free memory is still 119.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 22:04:35,596 INFO L158 Benchmark]: CACSL2BoogieTranslator took 532.93ms. Allocated memory was 153.1MB in the beginning and 237.0MB in the end (delta: 83.9MB). Free memory was 80.5MB in the beginning and 170.4MB in the end (delta: -89.8MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2024-10-12 22:04:35,596 INFO L158 Benchmark]: Boogie Procedure Inliner took 455.51ms. Allocated memory is still 237.0MB. Free memory was 170.4MB in the beginning and 131.1MB in the end (delta: 39.3MB). Peak memory consumption was 103.2MB. Max. memory is 16.1GB. [2024-10-12 22:04:35,596 INFO L158 Benchmark]: Boogie Preprocessor took 517.63ms. Allocated memory was 237.0MB in the beginning and 474.0MB in the end (delta: 237.0MB). Free memory was 131.1MB in the beginning and 344.3MB in the end (delta: -213.2MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2024-10-12 22:04:35,597 INFO L158 Benchmark]: RCFGBuilder took 2821.79ms. Allocated memory is still 474.0MB. Free memory was 344.3MB in the beginning and 191.7MB in the end (delta: 152.6MB). Peak memory consumption was 179.8MB. Max. memory is 16.1GB. [2024-10-12 22:04:35,597 INFO L158 Benchmark]: TraceAbstraction took 5151.60ms. Allocated memory was 474.0MB in the beginning and 830.5MB in the end (delta: 356.5MB). Free memory was 191.7MB in the beginning and 346.9MB in the end (delta: -155.2MB). Peak memory consumption was 200.3MB. Max. memory is 16.1GB. [2024-10-12 22:04:35,597 INFO L158 Benchmark]: Witness Printer took 3.08ms. Allocated memory is still 830.5MB. Free memory is still 346.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 22:04:35,598 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 153.1MB. Free memory is still 119.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 532.93ms. Allocated memory was 153.1MB in the beginning and 237.0MB in the end (delta: 83.9MB). Free memory was 80.5MB in the beginning and 170.4MB in the end (delta: -89.8MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 455.51ms. Allocated memory is still 237.0MB. Free memory was 170.4MB in the beginning and 131.1MB in the end (delta: 39.3MB). Peak memory consumption was 103.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 517.63ms. Allocated memory was 237.0MB in the beginning and 474.0MB in the end (delta: 237.0MB). Free memory was 131.1MB in the beginning and 344.3MB in the end (delta: -213.2MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. * RCFGBuilder took 2821.79ms. Allocated memory is still 474.0MB. Free memory was 344.3MB in the beginning and 191.7MB in the end (delta: 152.6MB). Peak memory consumption was 179.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5151.60ms. Allocated memory was 474.0MB in the beginning and 830.5MB in the end (delta: 356.5MB). Free memory was 191.7MB in the beginning and 346.9MB in the end (delta: -155.2MB). Peak memory consumption was 200.3MB. Max. memory is 16.1GB. * Witness Printer took 3.08ms. Allocated memory is still 830.5MB. Free memory is still 346.9MB. There was no memory consumed. 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 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 174. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L30] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L32] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L33] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L35] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L36] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L38] const SORT_2 var_5 = 0; [L39] const SORT_1 var_22 = 0; [L40] const SORT_4 var_45 = 1; [L41] const SORT_4 var_46 = 0; [L42] const SORT_2 var_54 = 0; [L43] const SORT_2 var_56 = 1; [L44] const SORT_3 var_66 = 0; [L45] const SORT_4 var_153 = 2; [L46] const SORT_2 var_165 = 2; [L47] const SORT_4 var_167 = 6; [L49] SORT_1 input_53; [L50] SORT_1 input_55; [L51] SORT_1 input_60; [L52] SORT_1 input_61; [L53] SORT_1 input_65; [L54] SORT_1 input_73; [L55] SORT_1 input_80; [L56] SORT_1 input_84; [L57] SORT_1 input_85; [L58] SORT_1 input_97; [L59] SORT_1 input_101; [L60] SORT_1 input_102; [L61] SORT_1 input_121; [L62] SORT_1 input_124; [L63] SORT_1 input_140; [L64] SORT_1 input_143; [L66] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L66] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L67] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L67] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L68] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L68] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L69] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L69] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L70] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L70] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L71] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L71] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L72] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L72] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L73] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L73] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L74] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L74] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L75] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L76] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L77] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L78] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L79] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L80] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L81] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L82] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L83] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L84] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] SORT_2 init_7_arg_1 = var_5; [L87] state_6 = init_7_arg_1 [L88] SORT_2 init_9_arg_1 = var_5; [L89] state_8 = init_9_arg_1 [L90] SORT_2 init_11_arg_1 = var_5; [L91] state_10 = init_11_arg_1 [L92] SORT_2 init_13_arg_1 = var_5; [L93] state_12 = init_13_arg_1 [L94] SORT_2 init_15_arg_1 = var_5; [L95] state_14 = init_15_arg_1 [L96] SORT_2 init_17_arg_1 = var_5; [L97] state_16 = init_17_arg_1 [L98] SORT_2 init_19_arg_1 = var_5; [L99] state_18 = init_19_arg_1 [L100] SORT_2 init_21_arg_1 = var_5; [L101] state_20 = init_21_arg_1 [L102] SORT_1 init_24_arg_1 = var_22; [L103] state_23 = init_24_arg_1 [L104] SORT_1 init_26_arg_1 = var_22; [L105] state_25 = init_26_arg_1 [L106] SORT_1 init_28_arg_1 = var_22; [L107] state_27 = init_28_arg_1 [L108] SORT_1 init_30_arg_1 = var_22; [L109] state_29 = init_30_arg_1 [L110] SORT_1 init_32_arg_1 = var_22; [L111] state_31 = init_32_arg_1 [L112] SORT_1 init_34_arg_1 = var_22; [L113] state_33 = init_34_arg_1 [L114] SORT_1 init_36_arg_1 = var_22; [L115] state_35 = init_36_arg_1 [L116] SORT_1 init_38_arg_1 = var_22; [L117] state_37 = init_38_arg_1 [L118] SORT_1 init_40_arg_1 = var_22; [L119] state_39 = init_40_arg_1 [L120] SORT_1 init_42_arg_1 = var_22; [L121] state_41 = init_42_arg_1 [L122] SORT_1 init_44_arg_1 = var_22; [L123] state_43 = init_44_arg_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L126] input_53 = __VERIFIER_nondet_uchar() [L127] EXPR input_53 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L127] input_53 = input_53 & mask_SORT_1 [L128] input_55 = __VERIFIER_nondet_uchar() [L129] EXPR input_55 & mask_SORT_1 VAL [input_53=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L129] input_55 = input_55 & mask_SORT_1 [L130] input_60 = __VERIFIER_nondet_uchar() [L131] EXPR input_60 & mask_SORT_1 VAL [input_53=0, input_55=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L131] input_60 = input_60 & mask_SORT_1 [L132] input_61 = __VERIFIER_nondet_uchar() [L133] EXPR input_61 & mask_SORT_1 VAL [input_53=0, input_55=0, input_60=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L133] input_61 = input_61 & mask_SORT_1 [L134] input_65 = __VERIFIER_nondet_uchar() [L135] EXPR input_65 & mask_SORT_1 VAL [input_53=0, input_55=0, input_60=0, input_61=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L135] input_65 = input_65 & mask_SORT_1 [L136] input_73 = __VERIFIER_nondet_uchar() [L137] EXPR input_73 & mask_SORT_1 VAL [input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L137] input_73 = input_73 & mask_SORT_1 [L138] input_80 = __VERIFIER_nondet_uchar() [L139] EXPR input_80 & mask_SORT_1 VAL [input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L139] input_80 = input_80 & mask_SORT_1 [L140] input_84 = __VERIFIER_nondet_uchar() [L141] EXPR input_84 & mask_SORT_1 VAL [input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L141] input_84 = input_84 & mask_SORT_1 [L142] input_85 = __VERIFIER_nondet_uchar() [L143] EXPR input_85 & mask_SORT_1 VAL [input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L143] input_85 = input_85 & mask_SORT_1 [L144] input_97 = __VERIFIER_nondet_uchar() [L145] EXPR input_97 & mask_SORT_1 VAL [input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L145] input_97 = input_97 & mask_SORT_1 [L146] input_101 = __VERIFIER_nondet_uchar() [L147] EXPR input_101 & mask_SORT_1 VAL [input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, input_97=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L147] input_101 = input_101 & mask_SORT_1 [L148] input_102 = __VERIFIER_nondet_uchar() [L149] EXPR input_102 & mask_SORT_1 VAL [input_101=0, input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, input_97=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L149] input_102 = input_102 & mask_SORT_1 [L150] input_121 = __VERIFIER_nondet_uchar() [L151] input_124 = __VERIFIER_nondet_uchar() [L152] input_140 = __VERIFIER_nondet_uchar() [L153] input_143 = __VERIFIER_nondet_uchar() [L156] SORT_1 var_47_arg_0 = state_31; [L157] SORT_4 var_47_arg_1 = var_45; [L158] SORT_4 var_47_arg_2 = var_46; [L159] SORT_4 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L160] SORT_1 var_48_arg_0 = state_41; [L161] SORT_4 var_48_arg_1 = var_45; [L162] SORT_4 var_48_arg_2 = var_46; [L163] SORT_4 var_48 = var_48_arg_0 ? var_48_arg_1 : var_48_arg_2; [L164] SORT_4 var_49_arg_0 = var_47; [L165] SORT_4 var_49_arg_1 = var_48; [L166] SORT_4 var_49 = var_49_arg_0 + var_49_arg_1; VAL [input_101=0, input_102=0, input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, input_97=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_49=0, var_54=0, var_56=1, var_66=0] [L167] EXPR var_49 & mask_SORT_4 VAL [input_101=0, input_102=0, input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, input_97=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L167] var_49 = var_49 & mask_SORT_4 [L168] SORT_4 var_50_arg_0 = var_49; [L169] SORT_4 var_50_arg_1 = var_45; [L170] SORT_1 var_50 = var_50_arg_0 <= var_50_arg_1; [L171] SORT_1 var_51_arg_0 = ~state_43; VAL [input_101=0, input_102=0, input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, input_97=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_50=1, var_51_arg_0=-1, var_54=0, var_56=1, var_66=0] [L172] EXPR var_51_arg_0 & mask_SORT_1 VAL [input_101=0, input_102=0, input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, input_97=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_50=1, var_54=0, var_56=1, var_66=0] [L172] var_51_arg_0 = var_51_arg_0 & mask_SORT_1 [L173] SORT_1 var_51_arg_1 = ~var_50; VAL [input_101=0, input_102=0, input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, input_97=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_51_arg_0=1, var_51_arg_1=-2, var_54=0, var_56=1, var_66=0] [L174] EXPR var_51_arg_1 & mask_SORT_1 VAL [input_101=0, input_102=0, input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, input_97=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_51_arg_0=1, var_54=0, var_56=1, var_66=0] [L174] var_51_arg_1 = var_51_arg_1 & mask_SORT_1 [L175] EXPR var_51_arg_0 & var_51_arg_1 VAL [input_101=0, input_102=0, input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, input_97=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L175] SORT_1 var_51 = var_51_arg_0 & var_51_arg_1; [L176] EXPR var_51 & mask_SORT_1 VAL [input_101=0, input_102=0, input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, input_97=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L176] var_51 = var_51 & mask_SORT_1 [L177] SORT_1 bad_52_arg_0 = var_51; [L178] CALL __VERIFIER_assert(!(bad_52_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1211 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3491 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3491 mSDsluCounter, 32646 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22637 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3474 IncrementalHoareTripleChecker+Invalid, 3476 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 10009 mSDtfsCounter, 3474 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1288occurred in iteration=6, InterpolantAutomatonStates: 27, 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, 6 MinimizatonAttempts, 1082 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 553 NumberOfCodeBlocks, 553 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 465 ConstructedInterpolants, 0 QuantifiedInterpolants, 1321 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-12 22:04:35,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fa88b8fffb6d00fe351813dff04ff095de9add832c65b297aee5013953d8af16 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 22:04:37,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 22:04:37,783 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-10-12 22:04:37,788 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 22:04:37,789 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 22:04:37,814 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 22:04:37,817 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 22:04:37,817 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 22:04:37,818 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 22:04:37,818 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 22:04:37,818 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 22:04:37,819 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 22:04:37,819 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 22:04:37,820 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 22:04:37,820 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 22:04:37,821 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 22:04:37,822 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 22:04:37,822 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 22:04:37,822 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 22:04:37,822 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 22:04:37,822 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 22:04:37,825 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-12 22:04:37,825 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-12 22:04:37,825 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 22:04:37,826 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-12 22:04:37,826 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 22:04:37,826 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 22:04:37,826 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 22:04:37,826 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 22:04:37,826 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 22:04:37,827 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 22:04:37,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 22:04:37,827 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 22:04:37,827 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 22:04:37,827 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 22:04:37,827 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-12 22:04:37,827 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-12 22:04:37,827 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 22:04:37,828 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 22:04:37,828 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 22:04:37,828 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 22:04:37,829 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-12 22:04:37,829 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa88b8fffb6d00fe351813dff04ff095de9add832c65b297aee5013953d8af16 [2024-10-12 22:04:38,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 22:04:38,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 22:04:38,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 22:04:38,119 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 22:04:38,120 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 22:04:38,121 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c [2024-10-12 22:04:39,528 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 22:04:39,773 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 22:04:39,776 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c [2024-10-12 22:04:39,792 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebf517375/4c5420ac95d64f418e41f68ddf337f0b/FLAGb8606560d [2024-10-12 22:04:39,805 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebf517375/4c5420ac95d64f418e41f68ddf337f0b [2024-10-12 22:04:39,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 22:04:39,809 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 22:04:39,810 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 22:04:39,810 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 22:04:39,814 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 22:04:39,815 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:04:39" (1/1) ... [2024-10-12 22:04:39,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@105805e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:39, skipping insertion in model container [2024-10-12 22:04:39,816 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:04:39" (1/1) ... [2024-10-12 22:04:39,863 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 22:04:40,032 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c[1173,1186] [2024-10-12 22:04:40,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 22:04:40,199 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 22:04:40,207 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c[1173,1186] [2024-10-12 22:04:40,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 22:04:40,334 INFO L204 MainTranslator]: Completed translation [2024-10-12 22:04:40,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:40 WrapperNode [2024-10-12 22:04:40,335 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 22:04:40,336 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 22:04:40,336 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 22:04:40,336 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 22:04:40,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:40" (1/1) ... [2024-10-12 22:04:40,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:40" (1/1) ... [2024-10-12 22:04:40,434 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1094 [2024-10-12 22:04:40,434 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 22:04:40,435 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 22:04:40,435 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 22:04:40,435 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 22:04:40,444 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:40" (1/1) ... [2024-10-12 22:04:40,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:40" (1/1) ... [2024-10-12 22:04:40,455 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:40" (1/1) ... [2024-10-12 22:04:40,492 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]. [2024-10-12 22:04:40,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:40" (1/1) ... [2024-10-12 22:04:40,492 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:40" (1/1) ... [2024-10-12 22:04:40,526 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:40" (1/1) ... [2024-10-12 22:04:40,534 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:40" (1/1) ... [2024-10-12 22:04:40,542 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:40" (1/1) ... [2024-10-12 22:04:40,549 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:40" (1/1) ... [2024-10-12 22:04:40,564 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 22:04:40,565 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 22:04:40,565 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 22:04:40,565 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 22:04:40,566 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:40" (1/1) ... [2024-10-12 22:04:40,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 22:04:40,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 22:04:40,600 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) [2024-10-12 22:04:40,603 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 [2024-10-12 22:04:40,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 22:04:40,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-12 22:04:40,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 22:04:40,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 22:04:40,913 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 22:04:40,915 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 22:04:41,732 INFO L? ?]: Removed 65 outVars from TransFormulas that were not future-live. [2024-10-12 22:04:41,733 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 22:04:41,767 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 22:04:41,768 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 22:04:41,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:04:41 BoogieIcfgContainer [2024-10-12 22:04:41,768 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 22:04:41,770 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 22:04:41,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 22:04:41,772 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 22:04:41,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:04:39" (1/3) ... [2024-10-12 22:04:41,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df9136d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:04:41, skipping insertion in model container [2024-10-12 22:04:41,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:04:40" (2/3) ... [2024-10-12 22:04:41,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df9136d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:04:41, skipping insertion in model container [2024-10-12 22:04:41,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:04:41" (3/3) ... [2024-10-12 22:04:41,775 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bakery.2.prop1-func-interl.c [2024-10-12 22:04:41,787 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 22:04:41,787 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 22:04:41,838 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 22:04:41,843 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;@363b0dfb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 22:04:41,844 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 22:04:41,847 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2024-10-12 22:04:41,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-12 22:04:41,851 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:04:41,852 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-12 22:04:41,853 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:04:41,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:04:41,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1614770, now seen corresponding path program 1 times [2024-10-12 22:04:41,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 22:04:41,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [109037370] [2024-10-12 22:04:41,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:04:41,870 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 22:04:41,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 22:04:41,873 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 22:04:41,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-12 22:04:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:04:42,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-12 22:04:42,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 22:04:42,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 22:04:42,248 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 22:04:42,248 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 22:04:42,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [109037370] [2024-10-12 22:04:42,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [109037370] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:04:42,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:04:42,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 22:04:42,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754216388] [2024-10-12 22:04:42,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:04:42,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:04:42,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 22:04:42,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:04:42,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:04:42,275 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-10-12 22:04:42,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:04:42,369 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2024-10-12 22:04:42,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:04:42,372 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-10-12 22:04:42,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:04:42,376 INFO L225 Difference]: With dead ends: 15 [2024-10-12 22:04:42,377 INFO L226 Difference]: Without dead ends: 9 [2024-10-12 22:04:42,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:04:42,381 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:04:42,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 22:04:42,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-10-12 22:04:42,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2024-10-12 22:04:42,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2024-10-12 22:04:42,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2024-10-12 22:04:42,403 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2024-10-12 22:04:42,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:04:42,404 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2024-10-12 22:04:42,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-10-12 22:04:42,404 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2024-10-12 22:04:42,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-12 22:04:42,405 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:04:42,405 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2024-10-12 22:04:42,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-12 22:04:42,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 22:04:42,607 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:04:42,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:04:42,607 INFO L85 PathProgramCache]: Analyzing trace with hash 865745430, now seen corresponding path program 1 times [2024-10-12 22:04:42,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 22:04:42,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013937659] [2024-10-12 22:04:42,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:04:42,609 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 22:04:42,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 22:04:42,614 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 22:04:42,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-12 22:04:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:04:42,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-12 22:04:42,942 INFO L278 TraceCheckSpWp]: Computing forward predicates...