./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 a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.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-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 23:41:54,660 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 23:41:54,730 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-12 23:41:54,736 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 23:41:54,736 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 23:41:54,771 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 23:41:54,771 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 23:41:54,772 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 23:41:54,772 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 23:41:54,773 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 23:41:54,787 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 23:41:54,787 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 23:41:54,788 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 23:41:54,788 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 23:41:54,789 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 23:41:54,789 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 23:41:54,792 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 23:41:54,792 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 23:41:54,792 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 23:41:54,793 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 23:41:54,793 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 23:41:54,794 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 23:41:54,795 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 23:41:54,795 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 23:41:54,795 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 23:41:54,795 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 23:41:54,796 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 23:41:54,796 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 23:41:54,796 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 23:41:54,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 23:41:54,797 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 23:41:54,797 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 23:41:54,798 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 23:41:54,798 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 23:41:54,798 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 23:41:54,799 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 23:41:54,799 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 23:41:54,799 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 23:41:54,799 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 23:41:54,799 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d58fddfa4cf482321dbdf1232482f8f34318cf991749c3b32b04a6dcba45ac13 [2024-10-12 23:41:55,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 23:41:55,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 23:41:55,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 23:41:55,096 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 23:41:55,096 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 23:41:55,097 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_spinner32.c [2024-10-12 23:41:56,509 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 23:41:56,725 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 23:41:56,725 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_spinner32.c [2024-10-12 23:41:56,736 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58245b0a0/bdf4b8a401c14bfb90496d2619e070f5/FLAGaec625d20 [2024-10-12 23:41:56,749 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58245b0a0/bdf4b8a401c14bfb90496d2619e070f5 [2024-10-12 23:41:56,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 23:41:56,753 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 23:41:56,754 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 23:41:56,754 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 23:41:56,759 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 23:41:56,760 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:41:56" (1/1) ... [2024-10-12 23:41:56,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40da7838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:41:56, skipping insertion in model container [2024-10-12 23:41:56,761 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:41:56" (1/1) ... [2024-10-12 23:41:56,789 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 23:41:56,947 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] [2024-10-12 23:41:57,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 23:41:57,035 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 23:41:57,045 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] [2024-10-12 23:41:57,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 23:41:57,141 INFO L204 MainTranslator]: Completed translation [2024-10-12 23:41:57,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:41:57 WrapperNode [2024-10-12 23:41:57,142 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 23:41:57,143 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 23:41:57,143 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 23:41:57,143 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 23:41:57,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:41:57" (1/1) ... [2024-10-12 23:41:57,171 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:41:57" (1/1) ... [2024-10-12 23:41:57,246 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 452 [2024-10-12 23:41:57,247 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 23:41:57,247 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 23:41:57,248 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 23:41:57,248 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 23:41:57,258 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:41:57" (1/1) ... [2024-10-12 23:41:57,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:41:57" (1/1) ... [2024-10-12 23:41:57,267 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:41:57" (1/1) ... [2024-10-12 23:41:57,304 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 23:41:57,305 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:41:57" (1/1) ... [2024-10-12 23:41:57,305 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:41:57" (1/1) ... [2024-10-12 23:41:57,329 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:41:57" (1/1) ... [2024-10-12 23:41:57,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:41:57" (1/1) ... [2024-10-12 23:41:57,358 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:41:57" (1/1) ... [2024-10-12 23:41:57,365 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:41:57" (1/1) ... [2024-10-12 23:41:57,377 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 23:41:57,378 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 23:41:57,379 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 23:41:57,379 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 23:41:57,380 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:41:57" (1/1) ... [2024-10-12 23:41:57,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 23:41:57,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 23:41:57,414 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 23:41:57,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 23:41:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 23:41:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 23:41:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 23:41:57,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 23:41:57,593 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 23:41:57,597 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 23:41:58,273 INFO L? ?]: Removed 249 outVars from TransFormulas that were not future-live. [2024-10-12 23:41:58,273 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 23:41:58,304 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 23:41:58,305 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 23:41:58,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:41:58 BoogieIcfgContainer [2024-10-12 23:41:58,307 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 23:41:58,308 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 23:41:58,310 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 23:41:58,313 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 23:41:58,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:41:56" (1/3) ... [2024-10-12 23:41:58,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6905388d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:41:58, skipping insertion in model container [2024-10-12 23:41:58,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:41:57" (2/3) ... [2024-10-12 23:41:58,315 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6905388d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:41:58, skipping insertion in model container [2024-10-12 23:41:58,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:41:58" (3/3) ... [2024-10-12 23:41:58,316 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_spinner32.c [2024-10-12 23:41:58,332 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 23:41:58,332 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 23:41:58,392 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 23:41:58,398 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;@2ae80b44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 23:41:58,398 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 23:41:58,402 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) [2024-10-12 23:41:58,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-12 23:41:58,407 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:41:58,408 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 23:41:58,408 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:41:58,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:41:58,415 INFO L85 PathProgramCache]: Analyzing trace with hash -952264117, now seen corresponding path program 1 times [2024-10-12 23:41:58,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:41:58,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946044014] [2024-10-12 23:41:58,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:41:58,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:41:58,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:41:58,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:41:58,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:41:58,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946044014] [2024-10-12 23:41:58,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946044014] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:41:58,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:41:58,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:41:58,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690247794] [2024-10-12 23:41:58,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:41:58,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 23:41:58,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:41:58,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 23:41:58,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:41:58,988 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) [2024-10-12 23:41:59,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:41:59,095 INFO L93 Difference]: Finished difference Result 226 states and 336 transitions. [2024-10-12 23:41:59,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:41:59,098 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 [2024-10-12 23:41:59,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:41:59,105 INFO L225 Difference]: With dead ends: 226 [2024-10-12 23:41:59,106 INFO L226 Difference]: Without dead ends: 120 [2024-10-12 23:41:59,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:41:59,112 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 [2024-10-12 23:41:59,112 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] [2024-10-12 23:41:59,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-10-12 23:41:59,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-10-12 23:41:59,143 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) [2024-10-12 23:41:59,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 176 transitions. [2024-10-12 23:41:59,147 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 176 transitions. Word has length 16 [2024-10-12 23:41:59,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:41:59,148 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 176 transitions. [2024-10-12 23:41:59,148 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) [2024-10-12 23:41:59,148 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 176 transitions. [2024-10-12 23:41:59,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-12 23:41:59,149 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:41:59,149 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 23:41:59,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 23:41:59,150 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:41:59,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:41:59,150 INFO L85 PathProgramCache]: Analyzing trace with hash 546278676, now seen corresponding path program 1 times [2024-10-12 23:41:59,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:41:59,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455274121] [2024-10-12 23:41:59,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:41:59,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:41:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:41:59,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:41:59,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:41:59,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455274121] [2024-10-12 23:41:59,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455274121] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:41:59,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:41:59,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:41:59,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635849504] [2024-10-12 23:41:59,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:41:59,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 23:41:59,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:41:59,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 23:41:59,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:41:59,289 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) [2024-10-12 23:41:59,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:41:59,324 INFO L93 Difference]: Finished difference Result 229 states and 336 transitions. [2024-10-12 23:41:59,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:41:59,324 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 [2024-10-12 23:41:59,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:41:59,326 INFO L225 Difference]: With dead ends: 229 [2024-10-12 23:41:59,326 INFO L226 Difference]: Without dead ends: 122 [2024-10-12 23:41:59,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:41:59,328 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 [2024-10-12 23:41:59,333 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] [2024-10-12 23:41:59,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-10-12 23:41:59,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-10-12 23:41:59,348 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) [2024-10-12 23:41:59,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 178 transitions. [2024-10-12 23:41:59,350 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 178 transitions. Word has length 17 [2024-10-12 23:41:59,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:41:59,353 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 178 transitions. [2024-10-12 23:41:59,354 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) [2024-10-12 23:41:59,354 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 178 transitions. [2024-10-12 23:41:59,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-12 23:41:59,355 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:41:59,355 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 23:41:59,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 23:41:59,356 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:41:59,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:41:59,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1343196092, now seen corresponding path program 1 times [2024-10-12 23:41:59,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:41:59,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784996095] [2024-10-12 23:41:59,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:41:59,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:41:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:41:59,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:41:59,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:41:59,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784996095] [2024-10-12 23:41:59,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784996095] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:41:59,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:41:59,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:41:59,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807491829] [2024-10-12 23:41:59,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:41:59,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 23:41:59,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:41:59,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 23:41:59,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 23:41:59,705 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) [2024-10-12 23:41:59,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:41:59,842 INFO L93 Difference]: Finished difference Result 338 states and 494 transitions. [2024-10-12 23:41:59,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 23:41:59,843 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 [2024-10-12 23:41:59,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:41:59,844 INFO L225 Difference]: With dead ends: 338 [2024-10-12 23:41:59,845 INFO L226 Difference]: Without dead ends: 229 [2024-10-12 23:41:59,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:41:59,850 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 [2024-10-12 23:41:59,851 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] [2024-10-12 23:41:59,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-10-12 23:41:59,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 129. [2024-10-12 23:41:59,865 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) [2024-10-12 23:41:59,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 187 transitions. [2024-10-12 23:41:59,866 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 187 transitions. Word has length 18 [2024-10-12 23:41:59,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:41:59,867 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 187 transitions. [2024-10-12 23:41:59,867 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) [2024-10-12 23:41:59,870 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 187 transitions. [2024-10-12 23:41:59,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-12 23:41:59,871 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:41:59,871 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 23:41:59,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 23:41:59,872 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:41:59,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:41:59,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1419828009, now seen corresponding path program 1 times [2024-10-12 23:41:59,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:41:59,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300994372] [2024-10-12 23:41:59,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:41:59,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:41:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 23:41:59,901 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 23:41:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 23:41:59,943 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 23:41:59,944 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-12 23:41:59,945 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 23:41:59,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 23:41:59,949 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-12 23:41:59,978 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 23:41:59,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:41:59 BoogieIcfgContainer [2024-10-12 23:41:59,981 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 23:41:59,982 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 23:41:59,982 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 23:41:59,982 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 23:41:59,983 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:41:58" (3/4) ... [2024-10-12 23:41:59,988 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-12 23:41:59,989 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 23:41:59,990 INFO L158 Benchmark]: Toolchain (without parser) took 3237.34ms. Allocated memory was 169.9MB in the beginning and 209.7MB in the end (delta: 39.8MB). Free memory was 100.2MB in the beginning and 146.8MB in the end (delta: -46.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 23:41:59,990 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 169.9MB. Free memory is still 140.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 23:41:59,991 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.46ms. Allocated memory is still 169.9MB. Free memory was 100.0MB in the beginning and 136.9MB in the end (delta: -36.9MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2024-10-12 23:41:59,991 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.87ms. Allocated memory is still 169.9MB. Free memory was 136.9MB in the beginning and 127.9MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-12 23:41:59,991 INFO L158 Benchmark]: Boogie Preprocessor took 129.72ms. Allocated memory is still 169.9MB. Free memory was 127.9MB in the beginning and 122.5MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 23:41:59,992 INFO L158 Benchmark]: RCFGBuilder took 928.34ms. Allocated memory is still 169.9MB. Free memory was 122.5MB in the beginning and 127.3MB in the end (delta: -4.9MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2024-10-12 23:41:59,992 INFO L158 Benchmark]: TraceAbstraction took 1673.37ms. Allocated memory was 169.9MB in the beginning and 209.7MB in the end (delta: 39.8MB). Free memory was 126.1MB in the beginning and 146.8MB in the end (delta: -20.7MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2024-10-12 23:41:59,993 INFO L158 Benchmark]: Witness Printer took 7.24ms. Allocated memory is still 209.7MB. Free memory is still 146.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 23:41:59,994 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 169.9MB. Free memory is still 140.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.46ms. Allocated memory is still 169.9MB. Free memory was 100.0MB in the beginning and 136.9MB in the end (delta: -36.9MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.87ms. Allocated memory is still 169.9MB. Free memory was 136.9MB in the beginning and 127.9MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 129.72ms. Allocated memory is still 169.9MB. Free memory was 127.9MB in the beginning and 122.5MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 928.34ms. Allocated memory is still 169.9MB. Free memory was 122.5MB in the beginning and 127.3MB in the end (delta: -4.9MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1673.37ms. Allocated memory was 169.9MB in the beginning and 209.7MB in the end (delta: 39.8MB). Free memory was 126.1MB in the beginning and 146.8MB in the end (delta: -20.7MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * Witness Printer took 7.24ms. Allocated memory is still 209.7MB. Free memory is still 146.8MB. 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: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, 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, 0.8s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 154 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 [2024-10-12 23:42:00,024 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-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 23:42:02,282 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 23:42:02,364 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-10-12 23:42:02,368 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 23:42:02,369 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 23:42:02,399 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 23:42:02,400 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 23:42:02,401 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 23:42:02,401 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 23:42:02,402 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 23:42:02,403 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 23:42:02,403 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 23:42:02,404 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 23:42:02,404 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 23:42:02,404 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 23:42:02,405 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 23:42:02,406 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 23:42:02,406 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 23:42:02,406 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 23:42:02,407 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 23:42:02,407 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 23:42:02,411 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-12 23:42:02,411 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-12 23:42:02,411 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 23:42:02,411 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-12 23:42:02,412 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 23:42:02,412 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 23:42:02,412 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 23:42:02,412 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 23:42:02,412 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 23:42:02,413 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 23:42:02,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 23:42:02,413 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 23:42:02,413 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 23:42:02,414 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 23:42:02,414 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-12 23:42:02,414 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-12 23:42:02,414 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 23:42:02,414 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 23:42:02,414 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 23:42:02,415 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 23:42:02,417 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-12 23:42:02,417 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d58fddfa4cf482321dbdf1232482f8f34318cf991749c3b32b04a6dcba45ac13 [2024-10-12 23:42:02,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 23:42:02,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 23:42:02,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 23:42:02,747 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 23:42:02,748 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 23:42:02,749 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_spinner32.c [2024-10-12 23:42:04,274 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 23:42:04,517 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 23:42:04,522 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_spinner32.c [2024-10-12 23:42:04,539 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fe6e4016/acb6bc7708644683ad5e3c9c96e701a4/FLAGf8d387764 [2024-10-12 23:42:04,864 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fe6e4016/acb6bc7708644683ad5e3c9c96e701a4 [2024-10-12 23:42:04,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 23:42:04,867 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 23:42:04,868 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 23:42:04,868 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 23:42:04,873 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 23:42:04,874 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:42:04" (1/1) ... [2024-10-12 23:42:04,875 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37e79a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:42:04, skipping insertion in model container [2024-10-12 23:42:04,875 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:42:04" (1/1) ... [2024-10-12 23:42:04,907 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 23:42:05,115 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] [2024-10-12 23:42:05,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 23:42:05,249 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 23:42:05,261 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] [2024-10-12 23:42:05,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 23:42:05,338 INFO L204 MainTranslator]: Completed translation [2024-10-12 23:42:05,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:42:05 WrapperNode [2024-10-12 23:42:05,339 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 23:42:05,340 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 23:42:05,340 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 23:42:05,340 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 23:42:05,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:42:05" (1/1) ... [2024-10-12 23:42:05,366 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:42:05" (1/1) ... [2024-10-12 23:42:05,403 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 228 [2024-10-12 23:42:05,404 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 23:42:05,404 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 23:42:05,406 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 23:42:05,406 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 23:42:05,416 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:42:05" (1/1) ... [2024-10-12 23:42:05,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:42:05" (1/1) ... [2024-10-12 23:42:05,423 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:42:05" (1/1) ... [2024-10-12 23:42:05,444 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 23:42:05,447 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:42:05" (1/1) ... [2024-10-12 23:42:05,447 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:42:05" (1/1) ... [2024-10-12 23:42:05,456 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:42:05" (1/1) ... [2024-10-12 23:42:05,463 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:42:05" (1/1) ... [2024-10-12 23:42:05,469 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:42:05" (1/1) ... [2024-10-12 23:42:05,470 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:42:05" (1/1) ... [2024-10-12 23:42:05,477 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 23:42:05,482 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 23:42:05,482 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 23:42:05,482 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 23:42:05,483 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:42:05" (1/1) ... [2024-10-12 23:42:05,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 23:42:05,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 23:42:05,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 23:42:05,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 23:42:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 23:42:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-12 23:42:05,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 23:42:05,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 23:42:05,721 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 23:42:05,726 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 23:42:06,106 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2024-10-12 23:42:06,106 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 23:42:06,149 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 23:42:06,149 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 23:42:06,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:42:06 BoogieIcfgContainer [2024-10-12 23:42:06,150 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 23:42:06,153 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 23:42:06,154 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 23:42:06,157 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 23:42:06,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:42:04" (1/3) ... [2024-10-12 23:42:06,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d34df8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:42:06, skipping insertion in model container [2024-10-12 23:42:06,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:42:05" (2/3) ... [2024-10-12 23:42:06,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d34df8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:42:06, skipping insertion in model container [2024-10-12 23:42:06,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:42:06" (3/3) ... [2024-10-12 23:42:06,161 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_spinner32.c [2024-10-12 23:42:06,178 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 23:42:06,179 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 23:42:06,239 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 23:42:06,245 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;@3acae405, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 23:42:06,246 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 23:42:06,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:42:06,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-12 23:42:06,258 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:42:06,259 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-12 23:42:06,260 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:42:06,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:42:06,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1614770, now seen corresponding path program 1 times [2024-10-12 23:42:06,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 23:42:06,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1232718593] [2024-10-12 23:42:06,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:42:06,276 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 23:42:06,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 23:42:06,278 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 23:42:06,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-12 23:42:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:42:06,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-12 23:42:06,397 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 23:42:06,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:42:06,578 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 23:42:06,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 23:42:06,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1232718593] [2024-10-12 23:42:06,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1232718593] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:42:06,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:42:06,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 23:42:06,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170904973] [2024-10-12 23:42:06,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:42:06,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 23:42:06,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 23:42:06,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 23:42:06,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:42:06,614 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:42:06,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:42:06,677 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2024-10-12 23:42:06,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:42:06,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-10-12 23:42:06,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:42:06,688 INFO L225 Difference]: With dead ends: 15 [2024-10-12 23:42:06,688 INFO L226 Difference]: Without dead ends: 9 [2024-10-12 23:42:06,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 23:42:06,697 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 [2024-10-12 23:42:06,698 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] [2024-10-12 23:42:06,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-10-12 23:42:06,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2024-10-12 23:42:06,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:42:06,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2024-10-12 23:42:06,728 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2024-10-12 23:42:06,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:42:06,728 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2024-10-12 23:42:06,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:42:06,729 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2024-10-12 23:42:06,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-12 23:42:06,729 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:42:06,729 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2024-10-12 23:42:06,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-12 23:42:06,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 23:42:06,932 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:42:06,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:42:06,933 INFO L85 PathProgramCache]: Analyzing trace with hash 865745430, now seen corresponding path program 1 times [2024-10-12 23:42:06,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 23:42:06,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844728550] [2024-10-12 23:42:06,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:42:06,935 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 23:42:06,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 23:42:06,937 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 23:42:06,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-12 23:42:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:42:07,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-12 23:42:07,046 INFO L278 TraceCheckSpWp]: Computing forward predicates...