./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.vis_QF_BV_spinner32.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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.vis_QF_BV_spinner32.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 d58fddfa4cf482321dbdf1232482f8f34318cf991749c3b32b04a6dcba45ac13 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 07:09:52,101 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 07:09:52,194 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-14 07:09:52,200 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 07:09:52,202 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 07:09:52,229 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 07:09:52,230 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 07:09:52,230 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 07:09:52,231 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 07:09:52,232 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 07:09:52,232 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 07:09:52,232 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 07:09:52,233 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 07:09:52,233 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 07:09:52,234 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 07:09:52,234 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 07:09:52,234 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 07:09:52,235 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 07:09:52,235 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 07:09:52,238 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 07:09:52,241 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 07:09:52,241 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 07:09:52,241 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 07:09:52,242 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 07:09:52,242 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 07:09:52,242 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 07:09:52,242 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 07:09:52,243 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 07:09:52,243 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 07:09:52,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 07:09:52,243 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 07:09:52,243 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 07:09:52,244 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 07:09:52,244 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 07:09:52,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 07:09:52,246 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 07:09:52,246 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 07:09:52,246 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 07:09:52,247 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 07:09:52,247 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d58fddfa4cf482321dbdf1232482f8f34318cf991749c3b32b04a6dcba45ac13 [2024-10-14 07:09:52,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 07:09:52,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 07:09:52,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 07:09:52,522 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 07:09:52,522 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 07:09:52,524 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_spinner32.c [2024-10-14 07:09:53,987 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 07:09:54,227 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 07:09:54,228 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_spinner32.c [2024-10-14 07:09:54,243 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a32b10b06/08c4c2426cc94f5eb06c65bb5d26f726/FLAGea5ea7420 [2024-10-14 07:09:54,261 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a32b10b06/08c4c2426cc94f5eb06c65bb5d26f726 [2024-10-14 07:09:54,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 07:09:54,266 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 07:09:54,268 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 07:09:54,268 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 07:09:54,274 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 07:09:54,275 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:09:54" (1/1) ... [2024-10-14 07:09:54,276 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@216d4ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:54, skipping insertion in model container [2024-10-14 07:09:54,276 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:09:54" (1/1) ... [2024-10-14 07:09:54,308 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 07:09:54,525 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.vis_QF_BV_spinner32.c[1259,1272] [2024-10-14 07:09:54,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 07:09:54,672 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 07:09:54,685 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.vis_QF_BV_spinner32.c[1259,1272] [2024-10-14 07:09:54,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 07:09:54,758 INFO L204 MainTranslator]: Completed translation [2024-10-14 07:09:54,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:54 WrapperNode [2024-10-14 07:09:54,759 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 07:09:54,760 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 07:09:54,760 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 07:09:54,760 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 07:09:54,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:54" (1/1) ... [2024-10-14 07:09:54,786 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:54" (1/1) ... [2024-10-14 07:09:54,847 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 452 [2024-10-14 07:09:54,849 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 07:09:54,849 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 07:09:54,850 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 07:09:54,850 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 07:09:54,860 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:54" (1/1) ... [2024-10-14 07:09:54,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:54" (1/1) ... [2024-10-14 07:09:54,872 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:54" (1/1) ... [2024-10-14 07:09:54,904 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]. [2024-10-14 07:09:54,905 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:54" (1/1) ... [2024-10-14 07:09:54,905 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:54" (1/1) ... [2024-10-14 07:09:54,929 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:54" (1/1) ... [2024-10-14 07:09:54,938 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:54" (1/1) ... [2024-10-14 07:09:54,944 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:54" (1/1) ... [2024-10-14 07:09:54,948 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:54" (1/1) ... [2024-10-14 07:09:54,958 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 07:09:54,960 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 07:09:54,960 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 07:09:54,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 07:09:54,961 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:54" (1/1) ... [2024-10-14 07:09:54,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 07:09:54,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 07:09:54,994 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) [2024-10-14 07:09:54,996 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 [2024-10-14 07:09:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 07:09:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 07:09:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 07:09:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 07:09:55,149 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 07:09:55,151 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 07:09:55,756 INFO L? ?]: Removed 249 outVars from TransFormulas that were not future-live. [2024-10-14 07:09:55,756 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 07:09:55,789 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 07:09:55,790 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 07:09:55,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:09:55 BoogieIcfgContainer [2024-10-14 07:09:55,791 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 07:09:55,793 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 07:09:55,793 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 07:09:55,797 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 07:09:55,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:09:54" (1/3) ... [2024-10-14 07:09:55,797 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ebed53d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:09:55, skipping insertion in model container [2024-10-14 07:09:55,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:54" (2/3) ... [2024-10-14 07:09:55,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ebed53d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:09:55, skipping insertion in model container [2024-10-14 07:09:55,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:09:55" (3/3) ... [2024-10-14 07:09:55,799 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_spinner32.c [2024-10-14 07:09:55,812 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 07:09:55,812 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 07:09:55,871 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 07:09:55,880 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;@225b2d25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 07:09:55,880 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 07:09:55,886 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 117 states have (on average 1.5042735042735043) internal successors, (176), 118 states have internal predecessors, (176), 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) [2024-10-14 07:09:55,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-14 07:09:55,892 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:09:55,893 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:09:55,893 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:09:55,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:09:55,900 INFO L85 PathProgramCache]: Analyzing trace with hash -952264117, now seen corresponding path program 1 times [2024-10-14 07:09:55,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:09:55,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155608734] [2024-10-14 07:09:55,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:09:55,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:09:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:09:56,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:09:56,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:09:56,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155608734] [2024-10-14 07:09:56,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155608734] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:09:56,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:09:56,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:09:56,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997764948] [2024-10-14 07:09:56,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:09:56,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 07:09:56,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:09:56,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 07:09:56,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:09:56,422 INFO L87 Difference]: Start difference. First operand has 119 states, 117 states have (on average 1.5042735042735043) internal successors, (176), 118 states have internal predecessors, (176), 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 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-10-14 07:09:56,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:09:56,488 INFO L93 Difference]: Finished difference Result 226 states and 336 transitions. [2024-10-14 07:09:56,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:09:56,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2024-10-14 07:09:56,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:09:56,500 INFO L225 Difference]: With dead ends: 226 [2024-10-14 07:09:56,500 INFO L226 Difference]: Without dead ends: 120 [2024-10-14 07:09:56,503 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 [2024-10-14 07:09:56,507 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 508 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 [2024-10-14 07:09:56,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 508 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:09:56,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-10-14 07:09:56,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-10-14 07:09:56,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 119 states have (on average 1.4789915966386555) internal successors, (176), 119 states have internal predecessors, (176), 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) [2024-10-14 07:09:56,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 176 transitions. [2024-10-14 07:09:56,547 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 176 transitions. Word has length 16 [2024-10-14 07:09:56,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:09:56,547 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 176 transitions. [2024-10-14 07:09:56,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-10-14 07:09:56,548 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 176 transitions. [2024-10-14 07:09:56,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-14 07:09:56,549 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:09:56,549 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:09:56,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 07:09:56,549 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:09:56,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:09:56,550 INFO L85 PathProgramCache]: Analyzing trace with hash 546278676, now seen corresponding path program 1 times [2024-10-14 07:09:56,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:09:56,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85093169] [2024-10-14 07:09:56,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:09:56,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:09:56,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:09:56,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:09:56,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:09:56,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85093169] [2024-10-14 07:09:56,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85093169] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:09:56,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:09:56,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:09:56,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494593479] [2024-10-14 07:09:56,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:09:56,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 07:09:56,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:09:56,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 07:09:56,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:09:56,710 INFO L87 Difference]: Start difference. First operand 120 states and 176 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-10-14 07:09:56,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:09:56,749 INFO L93 Difference]: Finished difference Result 229 states and 336 transitions. [2024-10-14 07:09:56,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:09:56,750 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2024-10-14 07:09:56,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:09:56,752 INFO L225 Difference]: With dead ends: 229 [2024-10-14 07:09:56,752 INFO L226 Difference]: Without dead ends: 122 [2024-10-14 07:09:56,752 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 [2024-10-14 07:09:56,754 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 505 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 [2024-10-14 07:09:56,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 505 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:09:56,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-10-14 07:09:56,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-10-14 07:09:56,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 121 states have (on average 1.4710743801652892) internal successors, (178), 121 states have internal predecessors, (178), 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) [2024-10-14 07:09:56,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 178 transitions. [2024-10-14 07:09:56,765 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 178 transitions. Word has length 17 [2024-10-14 07:09:56,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:09:56,766 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 178 transitions. [2024-10-14 07:09:56,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-10-14 07:09:56,766 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 178 transitions. [2024-10-14 07:09:56,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-14 07:09:56,767 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:09:56,767 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:09:56,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 07:09:56,768 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:09:56,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:09:56,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1343196092, now seen corresponding path program 1 times [2024-10-14 07:09:56,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:09:56,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884524977] [2024-10-14 07:09:56,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:09:56,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:09:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:09:57,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:09:57,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:09:57,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884524977] [2024-10-14 07:09:57,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884524977] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:09:57,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:09:57,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:09:57,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809151478] [2024-10-14 07:09:57,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:09:57,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:09:57,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:09:57,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:09:57,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:09:57,097 INFO L87 Difference]: Start difference. First operand 122 states and 178 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-10-14 07:09:57,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:09:57,177 INFO L93 Difference]: Finished difference Result 338 states and 494 transitions. [2024-10-14 07:09:57,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:09:57,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2024-10-14 07:09:57,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:09:57,181 INFO L225 Difference]: With dead ends: 338 [2024-10-14 07:09:57,183 INFO L226 Difference]: Without dead ends: 229 [2024-10-14 07:09:57,184 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 [2024-10-14 07:09:57,184 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 163 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:09:57,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 652 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:09:57,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-10-14 07:09:57,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 129. [2024-10-14 07:09:57,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.4609375) internal successors, (187), 128 states have internal predecessors, (187), 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) [2024-10-14 07:09:57,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 187 transitions. [2024-10-14 07:09:57,207 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 187 transitions. Word has length 18 [2024-10-14 07:09:57,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:09:57,208 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 187 transitions. [2024-10-14 07:09:57,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-10-14 07:09:57,208 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 187 transitions. [2024-10-14 07:09:57,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-14 07:09:57,209 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:09:57,209 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:09:57,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 07:09:57,209 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:09:57,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:09:57,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1419828009, now seen corresponding path program 1 times [2024-10-14 07:09:57,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:09:57,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371432697] [2024-10-14 07:09:57,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:09:57,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:09:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 07:09:57,247 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 07:09:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 07:09:57,301 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 07:09:57,301 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 07:09:57,303 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-14 07:09:57,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 07:09:57,308 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-14 07:09:57,340 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 07:09:57,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:09:57 BoogieIcfgContainer [2024-10-14 07:09:57,343 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 07:09:57,344 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 07:09:57,344 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 07:09:57,344 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 07:09:57,345 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:09:55" (3/4) ... [2024-10-14 07:09:57,347 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-14 07:09:57,348 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 07:09:57,348 INFO L158 Benchmark]: Toolchain (without parser) took 3082.63ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 80.9MB in the beginning and 157.4MB in the end (delta: -76.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 07:09:57,349 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 07:09:57,349 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.01ms. Allocated memory is still 151.0MB. Free memory was 80.7MB in the beginning and 113.7MB in the end (delta: -33.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-14 07:09:57,350 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.87ms. Allocated memory is still 151.0MB. Free memory was 113.7MB in the beginning and 104.9MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-14 07:09:57,350 INFO L158 Benchmark]: Boogie Preprocessor took 109.37ms. Allocated memory is still 151.0MB. Free memory was 104.9MB in the beginning and 99.4MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 07:09:57,350 INFO L158 Benchmark]: RCFGBuilder took 831.86ms. Allocated memory is still 151.0MB. Free memory was 99.4MB in the beginning and 95.3MB in the end (delta: 4.0MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-10-14 07:09:57,351 INFO L158 Benchmark]: TraceAbstraction took 1549.77ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 94.9MB in the beginning and 157.4MB in the end (delta: -62.5MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2024-10-14 07:09:57,351 INFO L158 Benchmark]: Witness Printer took 4.17ms. Allocated memory is still 220.2MB. Free memory is still 157.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 07:09:57,355 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 491.01ms. Allocated memory is still 151.0MB. Free memory was 80.7MB in the beginning and 113.7MB in the end (delta: -33.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.87ms. Allocated memory is still 151.0MB. Free memory was 113.7MB in the beginning and 104.9MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 109.37ms. Allocated memory is still 151.0MB. Free memory was 104.9MB in the beginning and 99.4MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 831.86ms. Allocated memory is still 151.0MB. Free memory was 99.4MB in the beginning and 95.3MB in the end (delta: 4.0MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1549.77ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 94.9MB in the beginning and 157.4MB in the end (delta: -62.5MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Witness Printer took 4.17ms. Allocated memory is still 220.2MB. Free memory is still 157.4MB. 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 104. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 5); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (5 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L32] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 32); [L33] const SORT_5 msb_SORT_5 = (SORT_5)1 << (32 - 1); [L35] const SORT_25 mask_SORT_25 = (SORT_25)-1 >> (sizeof(SORT_25) * 8 - 31); [L36] const SORT_25 msb_SORT_25 = (SORT_25)1 << (31 - 1); [L38] const SORT_35 mask_SORT_35 = (SORT_35)-1 >> (sizeof(SORT_35) * 8 - 30); [L39] const SORT_35 msb_SORT_35 = (SORT_35)1 << (30 - 1); [L41] const SORT_37 mask_SORT_37 = (SORT_37)-1 >> (sizeof(SORT_37) * 8 - 29); [L42] const SORT_37 msb_SORT_37 = (SORT_37)1 << (29 - 1); [L44] const SORT_43 mask_SORT_43 = (SORT_43)-1 >> (sizeof(SORT_43) * 8 - 2); [L45] const SORT_43 msb_SORT_43 = (SORT_43)1 << (2 - 1); [L47] const SORT_49 mask_SORT_49 = (SORT_49)-1 >> (sizeof(SORT_49) * 8 - 28); [L48] const SORT_49 msb_SORT_49 = (SORT_49)1 << (28 - 1); [L50] const SORT_51 mask_SORT_51 = (SORT_51)-1 >> (sizeof(SORT_51) * 8 - 26); [L51] const SORT_51 msb_SORT_51 = (SORT_51)1 << (26 - 1); [L53] const SORT_57 mask_SORT_57 = (SORT_57)-1 >> (sizeof(SORT_57) * 8 - 4); [L54] const SORT_57 msb_SORT_57 = (SORT_57)1 << (4 - 1); [L56] const SORT_63 mask_SORT_63 = (SORT_63)-1 >> (sizeof(SORT_63) * 8 - 24); [L57] const SORT_63 msb_SORT_63 = (SORT_63)1 << (24 - 1); [L59] const SORT_65 mask_SORT_65 = (SORT_65)-1 >> (sizeof(SORT_65) * 8 - 20); [L60] const SORT_65 msb_SORT_65 = (SORT_65)1 << (20 - 1); [L62] const SORT_71 mask_SORT_71 = (SORT_71)-1 >> (sizeof(SORT_71) * 8 - 8); [L63] const SORT_71 msb_SORT_71 = (SORT_71)1 << (8 - 1); [L65] const SORT_77 mask_SORT_77 = (SORT_77)-1 >> (sizeof(SORT_77) * 8 - 16); [L66] const SORT_77 msb_SORT_77 = (SORT_77)1 << (16 - 1); [L68] const SORT_5 var_8 = 0; [L69] const SORT_5 var_11 = 2863311530; [L70] const SORT_3 var_15 = 1; [L71] const SORT_3 var_22 = 0; [L73] SORT_1 input_2; [L74] SORT_3 input_4; [L75] SORT_5 input_6; [L76] SORT_3 input_7; [L78] EXPR __VERIFIER_nondet_uint() & mask_SORT_5 VAL [mask_SORT_37=536870911, mask_SORT_3=1, mask_SORT_43=3, mask_SORT_51=67108863, mask_SORT_57=15, mask_SORT_5=-1, mask_SORT_65=1048575, mask_SORT_71=255, mask_SORT_77=65535, var_11=2863311530, var_15=1, var_22=0, var_8=0] [L78] SORT_5 state_9 = __VERIFIER_nondet_uint() & mask_SORT_5; [L79] EXPR __VERIFIER_nondet_uint() & mask_SORT_5 VAL [mask_SORT_37=536870911, mask_SORT_3=1, mask_SORT_43=3, mask_SORT_51=67108863, mask_SORT_57=15, mask_SORT_5=-1, mask_SORT_65=1048575, mask_SORT_71=255, mask_SORT_77=65535, var_11=2863311530, var_15=1, var_22=0, var_8=0] [L79] SORT_5 state_19 = __VERIFIER_nondet_uint() & mask_SORT_5; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_37=536870911, mask_SORT_3=1, mask_SORT_43=3, mask_SORT_51=67108863, mask_SORT_57=15, mask_SORT_5=-1, mask_SORT_65=1048575, mask_SORT_71=255, mask_SORT_77=65535, var_11=2863311530, var_15=1, var_22=0, var_8=0] [L80] SORT_3 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L82] SORT_5 init_10_arg_1 = var_8; [L83] state_9 = init_10_arg_1 [L84] SORT_5 init_20_arg_1 = var_8; [L85] state_19 = init_20_arg_1 [L86] SORT_3 init_24_arg_1 = var_22; [L87] state_23 = init_24_arg_1 VAL [mask_SORT_37=536870911, mask_SORT_3=1, mask_SORT_43=3, mask_SORT_51=67108863, mask_SORT_57=15, mask_SORT_5=-1, mask_SORT_65=1048575, mask_SORT_71=255, mask_SORT_77=65535, state_19=0, state_23=0, state_9=0, var_11=2863311530, var_15=1] [L90] input_2 = __VERIFIER_nondet_uchar() [L91] input_4 = __VERIFIER_nondet_uchar() [L92] input_6 = __VERIFIER_nondet_uint() [L93] input_7 = __VERIFIER_nondet_uchar() [L94] EXPR input_7 & mask_SORT_3 VAL [mask_SORT_37=536870911, mask_SORT_3=1, mask_SORT_43=3, mask_SORT_51=67108863, mask_SORT_57=15, mask_SORT_5=-1, mask_SORT_65=1048575, mask_SORT_71=255, mask_SORT_77=65535, state_19=0, state_23=0, state_9=0, var_11=2863311530, var_15=1] [L94] input_7 = input_7 & mask_SORT_3 [L97] SORT_5 var_12_arg_0 = state_9; [L98] SORT_5 var_12_arg_1 = var_11; [L99] SORT_3 var_12 = var_12_arg_0 != var_12_arg_1; [L100] SORT_3 var_16_arg_0 = var_12; [L101] SORT_3 var_16 = ~var_16_arg_0; [L102] SORT_3 var_17_arg_0 = var_15; [L103] SORT_3 var_17_arg_1 = var_16; VAL [input_7=0, mask_SORT_37=536870911, mask_SORT_3=1, mask_SORT_43=3, mask_SORT_51=67108863, mask_SORT_57=15, mask_SORT_5=-1, mask_SORT_65=1048575, mask_SORT_71=255, mask_SORT_77=65535, state_19=0, state_23=0, state_9=0, var_11=2863311530, var_15=1, var_17_arg_0=1, var_17_arg_1=-2] [L104] EXPR var_17_arg_0 & var_17_arg_1 VAL [input_7=0, mask_SORT_37=536870911, mask_SORT_3=1, mask_SORT_43=3, mask_SORT_51=67108863, mask_SORT_57=15, mask_SORT_5=-1, mask_SORT_65=1048575, mask_SORT_71=255, mask_SORT_77=65535, state_19=0, state_23=0, state_9=0, var_11=2863311530, var_15=1] [L104] SORT_3 var_17 = var_17_arg_0 & var_17_arg_1; [L105] EXPR var_17 & mask_SORT_3 VAL [input_7=0, mask_SORT_37=536870911, mask_SORT_3=1, mask_SORT_43=3, mask_SORT_51=67108863, mask_SORT_57=15, mask_SORT_5=-1, mask_SORT_65=1048575, mask_SORT_71=255, mask_SORT_77=65535, state_19=0, state_23=0, state_9=0, var_11=2863311530, var_15=1] [L105] var_17 = var_17 & mask_SORT_3 [L106] SORT_3 bad_18_arg_0 = var_17; [L107] CALL __VERIFIER_assert(!(bad_18_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 163 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 163 mSDsluCounter, 1665 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1156 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 509 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=3, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 100 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 [2024-10-14 07:09:57,387 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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.vis_QF_BV_spinner32.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 d58fddfa4cf482321dbdf1232482f8f34318cf991749c3b32b04a6dcba45ac13 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 07:09:59,524 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 07:09:59,598 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-10-14 07:09:59,604 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 07:09:59,604 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 07:09:59,639 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 07:09:59,640 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 07:09:59,641 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 07:09:59,642 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 07:09:59,642 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 07:09:59,643 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 07:09:59,643 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 07:09:59,644 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 07:09:59,645 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 07:09:59,647 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 07:09:59,647 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 07:09:59,647 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 07:09:59,647 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 07:09:59,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 07:09:59,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 07:09:59,650 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 07:09:59,650 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 07:09:59,651 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-14 07:09:59,651 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 07:09:59,651 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-14 07:09:59,651 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 07:09:59,652 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 07:09:59,652 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 07:09:59,652 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 07:09:59,653 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 07:09:59,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 07:09:59,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 07:09:59,653 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 07:09:59,654 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 07:09:59,654 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 07:09:59,657 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-14 07:09:59,657 INFO L153 SettingsManager]: * Command for external solver=cvc5 --incremental --print-success --lang smt [2024-10-14 07:09:59,658 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 07:09:59,658 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 07:09:59,658 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 07:09:59,658 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 07:09:59,659 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-14 07:09:59,659 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d58fddfa4cf482321dbdf1232482f8f34318cf991749c3b32b04a6dcba45ac13 [2024-10-14 07:10:00,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 07:10:00,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 07:10:00,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 07:10:00,030 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 07:10:00,030 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 07:10:00,032 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_spinner32.c [2024-10-14 07:10:01,651 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 07:10:01,883 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 07:10:01,884 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_spinner32.c [2024-10-14 07:10:01,899 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8877e6afb/024364dc98c548909ceb56859bb9f30b/FLAG5bdecb41a [2024-10-14 07:10:01,914 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8877e6afb/024364dc98c548909ceb56859bb9f30b [2024-10-14 07:10:01,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 07:10:01,918 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 07:10:01,921 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 07:10:01,921 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 07:10:01,926 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 07:10:01,927 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:10:01" (1/1) ... [2024-10-14 07:10:01,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f41ad20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:01, skipping insertion in model container [2024-10-14 07:10:01,928 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:10:01" (1/1) ... [2024-10-14 07:10:01,960 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 07:10:02,134 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.vis_QF_BV_spinner32.c[1259,1272] [2024-10-14 07:10:02,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 07:10:02,261 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 07:10:02,274 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.vis_QF_BV_spinner32.c[1259,1272] [2024-10-14 07:10:02,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 07:10:02,344 INFO L204 MainTranslator]: Completed translation [2024-10-14 07:10:02,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:02 WrapperNode [2024-10-14 07:10:02,345 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 07:10:02,346 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 07:10:02,346 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 07:10:02,346 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 07:10:02,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:02" (1/1) ... [2024-10-14 07:10:02,363 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:02" (1/1) ... [2024-10-14 07:10:02,399 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 228 [2024-10-14 07:10:02,401 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 07:10:02,401 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 07:10:02,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 07:10:02,402 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 07:10:02,412 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:02" (1/1) ... [2024-10-14 07:10:02,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:02" (1/1) ... [2024-10-14 07:10:02,420 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:02" (1/1) ... [2024-10-14 07:10:02,441 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]. [2024-10-14 07:10:02,441 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:02" (1/1) ... [2024-10-14 07:10:02,442 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:02" (1/1) ... [2024-10-14 07:10:02,452 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:02" (1/1) ... [2024-10-14 07:10:02,455 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:02" (1/1) ... [2024-10-14 07:10:02,461 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:02" (1/1) ... [2024-10-14 07:10:02,463 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:02" (1/1) ... [2024-10-14 07:10:02,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 07:10:02,467 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 07:10:02,467 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 07:10:02,467 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 07:10:02,468 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:02" (1/1) ... [2024-10-14 07:10:02,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 07:10:02,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 07:10:02,505 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) [2024-10-14 07:10:02,507 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 [2024-10-14 07:10:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 07:10:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-14 07:10:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 07:10:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 07:10:02,657 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 07:10:02,659 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 07:10:03,049 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2024-10-14 07:10:03,050 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 07:10:03,097 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 07:10:03,098 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 07:10:03,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:10:03 BoogieIcfgContainer [2024-10-14 07:10:03,098 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 07:10:03,100 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 07:10:03,102 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 07:10:03,105 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 07:10:03,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:10:01" (1/3) ... [2024-10-14 07:10:03,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@623f0c20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:10:03, skipping insertion in model container [2024-10-14 07:10:03,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:02" (2/3) ... [2024-10-14 07:10:03,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@623f0c20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:10:03, skipping insertion in model container [2024-10-14 07:10:03,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:10:03" (3/3) ... [2024-10-14 07:10:03,109 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_spinner32.c [2024-10-14 07:10:03,125 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 07:10:03,126 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 07:10:03,187 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 07:10:03,195 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;@3c2643aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 07:10:03,196 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 07:10:03,199 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) [2024-10-14 07:10:03,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-14 07:10:03,205 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:10:03,206 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-14 07:10:03,207 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:10:03,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:10:03,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1614770, now seen corresponding path program 1 times [2024-10-14 07:10:03,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 07:10:03,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348304747] [2024-10-14 07:10:03,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:03,225 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 [2024-10-14 07:10:03,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 07:10:03,228 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) [2024-10-14 07:10:03,230 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 [2024-10-14 07:10:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:03,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-14 07:10:03,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 07:10:03,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:03,545 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 07:10:03,545 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 07:10:03,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348304747] [2024-10-14 07:10:03,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348304747] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:10:03,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:10:03,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 07:10:03,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141197196] [2024-10-14 07:10:03,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:10:03,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 07:10:03,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 07:10:03,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 07:10:03,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:10:03,575 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) [2024-10-14 07:10:03,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:10:03,649 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2024-10-14 07:10:03,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:10:03,652 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 [2024-10-14 07:10:03,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:10:03,659 INFO L225 Difference]: With dead ends: 15 [2024-10-14 07:10:03,660 INFO L226 Difference]: Without dead ends: 9 [2024-10-14 07:10:03,662 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 [2024-10-14 07:10:03,667 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:10:03,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:10:03,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-10-14 07:10:03,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2024-10-14 07:10:03,697 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) [2024-10-14 07:10:03,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2024-10-14 07:10:03,699 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2024-10-14 07:10:03,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:10:03,699 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2024-10-14 07:10:03,700 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) [2024-10-14 07:10:03,700 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2024-10-14 07:10:03,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-14 07:10:03,701 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:10:03,701 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2024-10-14 07:10:03,705 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 [2024-10-14 07:10:03,904 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 [2024-10-14 07:10:03,905 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:10:03,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:10:03,905 INFO L85 PathProgramCache]: Analyzing trace with hash 865745430, now seen corresponding path program 1 times [2024-10-14 07:10:03,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 07:10:03,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877682455] [2024-10-14 07:10:03,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:03,910 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 [2024-10-14 07:10:03,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 07:10:03,913 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) [2024-10-14 07:10:03,915 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 [2024-10-14 07:10:04,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:04,025 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-14 07:10:04,030 INFO L278 TraceCheckSpWp]: Computing forward predicates...