./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.vcegar_QF_BV_itc99_b13_p13.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p13.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 7edbd2d714654fb3cac877a34ec7b56a1dc045c2b1f9c322f5dfaacff9b2ba72 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 07:08:00,788 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 07:08:00,858 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-14 07:08:00,865 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 07:08:00,868 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 07:08:00,899 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 07:08:00,901 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 07:08:00,901 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 07:08:00,902 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 07:08:00,903 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 07:08:00,904 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 07:08:00,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 07:08:00,905 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 07:08:00,905 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 07:08:00,908 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 07:08:00,909 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 07:08:00,909 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 07:08:00,910 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 07:08:00,910 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 07:08:00,910 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 07:08:00,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 07:08:00,911 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 07:08:00,911 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 07:08:00,911 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 07:08:00,911 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 07:08:00,911 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 07:08:00,912 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 07:08:00,912 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 07:08:00,912 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 07:08:00,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 07:08:00,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 07:08:00,913 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 07:08:00,913 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 07:08:00,913 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 07:08:00,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 07:08:00,913 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 07:08:00,914 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 07:08:00,914 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 07:08:00,916 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 07:08:00,916 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7edbd2d714654fb3cac877a34ec7b56a1dc045c2b1f9c322f5dfaacff9b2ba72 [2024-10-14 07:08:01,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 07:08:01,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 07:08:01,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 07:08:01,209 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 07:08:01,210 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 07:08:01,212 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p13.c [2024-10-14 07:08:02,719 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 07:08:02,937 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 07:08:02,937 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p13.c [2024-10-14 07:08:02,948 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92e3c02bb/6539133b15b34449b58eca9e1a3f30ea/FLAGd138f86f8 [2024-10-14 07:08:02,961 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92e3c02bb/6539133b15b34449b58eca9e1a3f30ea [2024-10-14 07:08:02,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 07:08:02,965 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 07:08:02,968 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 07:08:02,969 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 07:08:02,975 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 07:08:02,976 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:08:02" (1/1) ... [2024-10-14 07:08:02,977 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a1b2b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:02, skipping insertion in model container [2024-10-14 07:08:02,977 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:08:02" (1/1) ... [2024-10-14 07:08:03,013 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 07:08:03,190 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.vcegar_QF_BV_itc99_b13_p13.c[1266,1279] [2024-10-14 07:08:03,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 07:08:03,353 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 07:08:03,363 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.vcegar_QF_BV_itc99_b13_p13.c[1266,1279] [2024-10-14 07:08:03,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 07:08:03,460 INFO L204 MainTranslator]: Completed translation [2024-10-14 07:08:03,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:03 WrapperNode [2024-10-14 07:08:03,464 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 07:08:03,466 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 07:08:03,466 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 07:08:03,466 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 07:08:03,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:03" (1/1) ... [2024-10-14 07:08:03,496 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:03" (1/1) ... [2024-10-14 07:08:03,585 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 730 [2024-10-14 07:08:03,586 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 07:08:03,587 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 07:08:03,588 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 07:08:03,588 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 07:08:03,599 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:03" (1/1) ... [2024-10-14 07:08:03,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:03" (1/1) ... [2024-10-14 07:08:03,625 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:03" (1/1) ... [2024-10-14 07:08:03,678 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 07:08:03,678 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:03" (1/1) ... [2024-10-14 07:08:03,679 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:03" (1/1) ... [2024-10-14 07:08:03,710 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:03" (1/1) ... [2024-10-14 07:08:03,715 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:03" (1/1) ... [2024-10-14 07:08:03,732 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:03" (1/1) ... [2024-10-14 07:08:03,746 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:03" (1/1) ... [2024-10-14 07:08:03,760 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 07:08:03,763 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 07:08:03,763 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 07:08:03,763 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 07:08:03,764 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:03" (1/1) ... [2024-10-14 07:08:03,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 07:08:03,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 07:08:03,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 07:08:03,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 07:08:03,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 07:08:03,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 07:08:03,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 07:08:03,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 07:08:04,001 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 07:08:04,003 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 07:08:04,908 INFO L? ?]: Removed 379 outVars from TransFormulas that were not future-live. [2024-10-14 07:08:04,908 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 07:08:04,953 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 07:08:04,953 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 07:08:04,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:08:04 BoogieIcfgContainer [2024-10-14 07:08:04,956 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 07:08:04,958 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 07:08:04,959 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 07:08:04,963 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 07:08:04,963 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:08:02" (1/3) ... [2024-10-14 07:08:04,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53660ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:08:04, skipping insertion in model container [2024-10-14 07:08:04,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:03" (2/3) ... [2024-10-14 07:08:04,965 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53660ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:08:04, skipping insertion in model container [2024-10-14 07:08:04,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:08:04" (3/3) ... [2024-10-14 07:08:04,966 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p13.c [2024-10-14 07:08:04,985 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 07:08:04,986 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 07:08:05,063 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 07:08:05,070 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;@1fd09327, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 07:08:05,071 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 07:08:05,075 INFO L276 IsEmpty]: Start isEmpty. Operand has 139 states, 137 states have (on average 1.5036496350364963) internal successors, (206), 138 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:08:05,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-14 07:08:05,086 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:08:05,087 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:08:05,087 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:08:05,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:08:05,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1832313884, now seen corresponding path program 1 times [2024-10-14 07:08:05,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:08:05,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895154214] [2024-10-14 07:08:05,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:08:05,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:08:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:08:05,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:08:05,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:08:05,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895154214] [2024-10-14 07:08:05,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895154214] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:08:05,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:08:05,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:08:05,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044088350] [2024-10-14 07:08:05,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:08:05,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 07:08:05,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:08:05,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 07:08:05,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:08:05,848 INFO L87 Difference]: Start difference. First operand has 139 states, 137 states have (on average 1.5036496350364963) internal successors, (206), 138 states have internal predecessors, (206), 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 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:08:05,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:08:05,947 INFO L93 Difference]: Finished difference Result 226 states and 336 transitions. [2024-10-14 07:08:05,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:08:05,953 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 40 [2024-10-14 07:08:05,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:08:05,965 INFO L225 Difference]: With dead ends: 226 [2024-10-14 07:08:05,966 INFO L226 Difference]: Without dead ends: 140 [2024-10-14 07:08:05,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:08:05,972 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 0 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:08:05,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 598 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:08:06,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-10-14 07:08:06,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2024-10-14 07:08:06,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 139 states have (on average 1.4820143884892085) internal successors, (206), 139 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:08:06,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 206 transitions. [2024-10-14 07:08:06,058 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 206 transitions. Word has length 40 [2024-10-14 07:08:06,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:08:06,058 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 206 transitions. [2024-10-14 07:08:06,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:08:06,059 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 206 transitions. [2024-10-14 07:08:06,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-14 07:08:06,062 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:08:06,062 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:08:06,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 07:08:06,063 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:08:06,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:08:06,063 INFO L85 PathProgramCache]: Analyzing trace with hash 968850943, now seen corresponding path program 1 times [2024-10-14 07:08:06,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:08:06,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73163103] [2024-10-14 07:08:06,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:08:06,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:08:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:08:06,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:08:06,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:08:06,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73163103] [2024-10-14 07:08:06,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73163103] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:08:06,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:08:06,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:08:06,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846938960] [2024-10-14 07:08:06,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:08:06,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 07:08:06,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:08:06,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 07:08:06,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:08:06,225 INFO L87 Difference]: Start difference. First operand 140 states and 206 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:08:06,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:08:06,258 INFO L93 Difference]: Finished difference Result 229 states and 336 transitions. [2024-10-14 07:08:06,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:08:06,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 41 [2024-10-14 07:08:06,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:08:06,260 INFO L225 Difference]: With dead ends: 229 [2024-10-14 07:08:06,260 INFO L226 Difference]: Without dead ends: 142 [2024-10-14 07:08:06,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:08:06,262 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 0 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:08:06,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 595 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:08:06,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-10-14 07:08:06,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-10-14 07:08:06,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.475177304964539) internal successors, (208), 141 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:08:06,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 208 transitions. [2024-10-14 07:08:06,272 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 208 transitions. Word has length 41 [2024-10-14 07:08:06,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:08:06,273 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 208 transitions. [2024-10-14 07:08:06,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:08:06,273 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 208 transitions. [2024-10-14 07:08:06,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-14 07:08:06,274 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:08:06,274 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:08:06,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 07:08:06,275 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:08:06,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:08:06,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1128357547, now seen corresponding path program 1 times [2024-10-14 07:08:06,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:08:06,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196628934] [2024-10-14 07:08:06,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:08:06,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:08:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:08:06,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:08:06,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:08:06,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196628934] [2024-10-14 07:08:06,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196628934] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:08:06,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:08:06,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:08:06,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537124342] [2024-10-14 07:08:06,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:08:06,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 07:08:06,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:08:06,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 07:08:06,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:08:06,581 INFO L87 Difference]: Start difference. First operand 142 states and 208 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:08:06,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:08:06,701 INFO L93 Difference]: Finished difference Result 235 states and 343 transitions. [2024-10-14 07:08:06,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 07:08:06,701 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 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 42 [2024-10-14 07:08:06,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:08:06,703 INFO L225 Difference]: With dead ends: 235 [2024-10-14 07:08:06,705 INFO L226 Difference]: Without dead ends: 146 [2024-10-14 07:08:06,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:08:06,707 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 176 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:08:06,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 727 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:08:06,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-10-14 07:08:06,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 145. [2024-10-14 07:08:06,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.4652777777777777) internal successors, (211), 144 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:08:06,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 211 transitions. [2024-10-14 07:08:06,724 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 211 transitions. Word has length 42 [2024-10-14 07:08:06,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:08:06,725 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 211 transitions. [2024-10-14 07:08:06,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:08:06,725 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 211 transitions. [2024-10-14 07:08:06,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 07:08:06,726 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:08:06,726 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:08:06,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 07:08:06,727 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:08:06,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:08:06,727 INFO L85 PathProgramCache]: Analyzing trace with hash 945199746, now seen corresponding path program 1 times [2024-10-14 07:08:06,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:08:06,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475633843] [2024-10-14 07:08:06,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:08:06,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:08:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 07:08:06,781 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 07:08:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 07:08:06,879 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 07:08:06,880 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 07:08:06,881 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-14 07:08:06,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 07:08:06,886 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-14 07:08:06,933 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 07:08:06,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:08:06 BoogieIcfgContainer [2024-10-14 07:08:06,940 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 07:08:06,941 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 07:08:06,941 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 07:08:06,941 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 07:08:06,942 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:08:04" (3/4) ... [2024-10-14 07:08:06,945 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-14 07:08:06,947 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 07:08:06,949 INFO L158 Benchmark]: Toolchain (without parser) took 3982.40ms. Allocated memory was 182.5MB in the beginning and 257.9MB in the end (delta: 75.5MB). Free memory was 122.2MB in the beginning and 204.0MB in the end (delta: -81.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 07:08:06,950 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 182.5MB. Free memory is still 144.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 07:08:06,951 INFO L158 Benchmark]: CACSL2BoogieTranslator took 496.75ms. Allocated memory is still 182.5MB. Free memory was 121.8MB in the beginning and 99.6MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-14 07:08:06,952 INFO L158 Benchmark]: Boogie Procedure Inliner took 120.17ms. Allocated memory is still 182.5MB. Free memory was 99.6MB in the beginning and 85.7MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-14 07:08:06,952 INFO L158 Benchmark]: Boogie Preprocessor took 173.63ms. Allocated memory is still 182.5MB. Free memory was 85.3MB in the beginning and 76.5MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-14 07:08:06,954 INFO L158 Benchmark]: RCFGBuilder took 1192.99ms. Allocated memory was 182.5MB in the beginning and 257.9MB in the end (delta: 75.5MB). Free memory was 76.1MB in the beginning and 163.8MB in the end (delta: -87.7MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. [2024-10-14 07:08:06,954 INFO L158 Benchmark]: TraceAbstraction took 1982.35ms. Allocated memory is still 257.9MB. Free memory was 163.8MB in the beginning and 204.0MB in the end (delta: -40.3MB). Peak memory consumption was 92.9MB. Max. memory is 16.1GB. [2024-10-14 07:08:06,954 INFO L158 Benchmark]: Witness Printer took 6.02ms. Allocated memory is still 257.9MB. Free memory is still 204.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 07:08:06,957 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 182.5MB. Free memory is still 144.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 496.75ms. Allocated memory is still 182.5MB. Free memory was 121.8MB in the beginning and 99.6MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 120.17ms. Allocated memory is still 182.5MB. Free memory was 99.6MB in the beginning and 85.7MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 173.63ms. Allocated memory is still 182.5MB. Free memory was 85.3MB in the beginning and 76.5MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1192.99ms. Allocated memory was 182.5MB in the beginning and 257.9MB in the end (delta: 75.5MB). Free memory was 76.1MB in the beginning and 163.8MB in the end (delta: -87.7MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1982.35ms. Allocated memory is still 257.9MB. Free memory was 163.8MB in the beginning and 204.0MB in the end (delta: -40.3MB). Peak memory consumption was 92.9MB. Max. memory is 16.1GB. * Witness Printer took 6.02ms. Allocated memory is still 257.9MB. Free memory is still 204.0MB. 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 168. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L32] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 32); [L33] const SORT_10 msb_SORT_10 = (SORT_10)1 << (32 - 1); [L35] const SORT_31 mask_SORT_31 = (SORT_31)-1 >> (sizeof(SORT_31) * 8 - 4); [L36] const SORT_31 msb_SORT_31 = (SORT_31)1 << (4 - 1); [L38] const SORT_67 mask_SORT_67 = (SORT_67)-1 >> (sizeof(SORT_67) * 8 - 10); [L39] const SORT_67 msb_SORT_67 = (SORT_67)1 << (10 - 1); [L41] const SORT_1 var_7 = 0; [L42] const SORT_10 var_12 = 0; [L43] const SORT_1 var_21 = 1; [L44] const SORT_67 var_68 = 0; [L45] const SORT_10 var_119 = 104; [L46] const SORT_10 var_136 = 1; [L48] SORT_1 input_2; [L49] SORT_3 input_4; [L50] SORT_1 input_5; [L51] SORT_1 input_6; [L52] SORT_1 input_29; [L53] SORT_31 input_32; [L54] SORT_31 input_34; [L55] SORT_1 input_36; [L56] SORT_1 input_38; [L57] SORT_1 input_44; [L58] SORT_1 input_46; [L59] SORT_1 input_48; [L60] SORT_3 input_52; [L61] SORT_1 input_55; [L62] SORT_1 input_63; [L63] SORT_1 input_73; [L64] SORT_1 input_79; [L65] SORT_1 input_81; [L66] SORT_1 input_95; [L67] SORT_1 input_101; [L68] SORT_1 input_107; [L69] SORT_1 input_113; [L70] SORT_1 input_114; [L71] SORT_1 input_115; [L72] SORT_67 input_134; [L73] SORT_1 input_143; [L74] SORT_1 input_144; [L75] SORT_1 input_145; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_67=1023, var_119=104, var_12=0, var_136=1, var_21=1, var_68=0, var_7=0] [L77] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_67=1023, var_119=104, var_12=0, var_136=1, var_21=1, var_68=0, var_7=0] [L78] SORT_1 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_67=1023, var_119=104, var_12=0, var_136=1, var_21=1, var_68=0, var_7=0] [L79] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_67=1023, var_119=104, var_12=0, var_136=1, var_21=1, var_68=0, var_7=0] [L80] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_67=1023, var_119=104, var_12=0, var_136=1, var_21=1, var_68=0, var_7=0] [L81] SORT_1 state_40 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_67=1023, var_119=104, var_12=0, var_136=1, var_21=1, var_68=0, var_7=0] [L82] SORT_1 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_67=1023, var_119=104, var_12=0, var_136=1, var_21=1, var_68=0, var_7=0] [L83] SORT_1 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_67=1023, var_119=104, var_12=0, var_136=1, var_21=1, var_68=0, var_7=0] [L84] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_67=1023, var_119=104, var_12=0, var_136=1, var_21=1, var_68=0, var_7=0] [L85] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_67=1023, var_119=104, var_12=0, var_136=1, var_21=1, var_68=0, var_7=0] [L86] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_67=1023, var_119=104, var_12=0, var_136=1, var_21=1, var_68=0, var_7=0] [L87] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] EXPR __VERIFIER_nondet_ushort() & mask_SORT_67 VAL [mask_SORT_1=1, mask_SORT_67=1023, var_119=104, var_12=0, var_136=1, var_21=1, var_68=0, var_7=0] [L88] SORT_67 state_69 = __VERIFIER_nondet_ushort() & mask_SORT_67; [L89] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_67=1023, var_119=104, var_12=0, var_136=1, var_21=1, var_68=0, var_7=0] [L89] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L91] SORT_1 init_9_arg_1 = var_7; [L92] state_8 = init_9_arg_1 [L93] SORT_1 init_15_arg_1 = var_7; [L94] state_14 = init_15_arg_1 [L95] SORT_1 init_26_arg_1 = var_7; [L96] state_25 = init_26_arg_1 [L97] SORT_1 init_28_arg_1 = var_7; [L98] state_27 = init_28_arg_1 [L99] SORT_1 init_41_arg_1 = var_7; [L100] state_40 = init_41_arg_1 [L101] SORT_1 init_43_arg_1 = var_7; [L102] state_42 = init_43_arg_1 [L103] SORT_1 init_51_arg_1 = var_21; [L104] state_50 = init_51_arg_1 [L105] SORT_1 init_58_arg_1 = var_7; [L106] state_57 = init_58_arg_1 [L107] SORT_1 init_60_arg_1 = var_7; [L108] state_59 = init_60_arg_1 [L109] SORT_1 init_62_arg_1 = var_7; [L110] state_61 = init_62_arg_1 [L111] SORT_1 init_66_arg_1 = var_7; [L112] state_65 = init_66_arg_1 [L113] SORT_67 init_70_arg_1 = var_68; [L114] state_69 = init_70_arg_1 [L115] SORT_1 init_72_arg_1 = var_7; [L116] state_71 = init_72_arg_1 VAL [mask_SORT_1=1, mask_SORT_67=1023, state_14=0, state_25=0, state_27=0, state_40=0, state_42=0, state_50=1, state_57=0, state_59=0, state_61=0, state_65=0, state_69=0, state_71=0, state_8=0, var_119=104, var_12=0, var_136=1, var_21=1, var_68=0, var_7=0] [L119] input_2 = __VERIFIER_nondet_uchar() [L120] input_4 = __VERIFIER_nondet_uchar() [L121] input_5 = __VERIFIER_nondet_uchar() [L122] input_6 = __VERIFIER_nondet_uchar() [L123] input_29 = __VERIFIER_nondet_uchar() [L124] input_32 = __VERIFIER_nondet_uchar() [L125] input_34 = __VERIFIER_nondet_uchar() [L126] input_36 = __VERIFIER_nondet_uchar() [L127] input_38 = __VERIFIER_nondet_uchar() [L128] input_44 = __VERIFIER_nondet_uchar() [L129] input_46 = __VERIFIER_nondet_uchar() [L130] input_48 = __VERIFIER_nondet_uchar() [L131] input_52 = __VERIFIER_nondet_uchar() [L132] input_55 = __VERIFIER_nondet_uchar() [L133] input_63 = __VERIFIER_nondet_uchar() [L134] input_73 = __VERIFIER_nondet_uchar() [L135] input_79 = __VERIFIER_nondet_uchar() [L136] input_81 = __VERIFIER_nondet_uchar() [L137] input_95 = __VERIFIER_nondet_uchar() [L138] input_101 = __VERIFIER_nondet_uchar() [L139] input_107 = __VERIFIER_nondet_uchar() [L140] input_113 = __VERIFIER_nondet_uchar() [L141] input_114 = __VERIFIER_nondet_uchar() [L142] input_115 = __VERIFIER_nondet_uchar() [L143] input_134 = __VERIFIER_nondet_ushort() [L144] input_143 = __VERIFIER_nondet_uchar() [L145] input_144 = __VERIFIER_nondet_uchar() [L146] input_145 = __VERIFIER_nondet_uchar() [L149] SORT_1 var_11_arg_0 = state_8; VAL [mask_SORT_1=1, mask_SORT_67=1023, state_14=0, state_25=0, state_27=0, state_40=0, state_42=0, state_50=1, state_57=0, state_59=0, state_61=0, state_65=0, state_69=0, state_71=0, state_8=0, var_119=104, var_11_arg_0=0, var_12=0, var_136=1, var_21=1, var_68=0, var_7=0] [L150] EXPR var_11_arg_0 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_67=1023, state_14=0, state_25=0, state_27=0, state_40=0, state_42=0, state_50=1, state_57=0, state_59=0, state_61=0, state_65=0, state_69=0, state_71=0, state_8=0, var_119=104, var_12=0, var_136=1, var_21=1, var_68=0, var_7=0] [L150] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 [L151] SORT_10 var_11 = var_11_arg_0; [L152] SORT_10 var_13_arg_0 = var_11; [L153] SORT_10 var_13_arg_1 = var_12; [L154] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L155] SORT_1 var_16_arg_0 = state_14; VAL [mask_SORT_1=1, mask_SORT_67=1023, state_14=0, state_25=0, state_27=0, state_40=0, state_42=0, state_50=1, state_57=0, state_59=0, state_61=0, state_65=0, state_69=0, state_71=0, state_8=0, var_119=104, var_12=0, var_136=1, var_13=1, var_16_arg_0=0, var_21=1, var_68=0, var_7=0] [L156] EXPR var_16_arg_0 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_67=1023, state_14=0, state_25=0, state_27=0, state_40=0, state_42=0, state_50=1, state_57=0, state_59=0, state_61=0, state_65=0, state_69=0, state_71=0, state_8=0, var_119=104, var_12=0, var_136=1, var_13=1, var_21=1, var_68=0, var_7=0] [L156] var_16_arg_0 = var_16_arg_0 & mask_SORT_1 [L157] SORT_10 var_16 = var_16_arg_0; [L158] SORT_10 var_17_arg_0 = var_16; [L159] SORT_10 var_17_arg_1 = var_12; [L160] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L161] SORT_1 var_18_arg_0 = var_13; [L162] SORT_1 var_18_arg_1 = var_17; VAL [mask_SORT_1=1, mask_SORT_67=1023, state_14=0, state_25=0, state_27=0, state_40=0, state_42=0, state_50=1, state_57=0, state_59=0, state_61=0, state_65=0, state_69=0, state_71=0, state_8=0, var_119=104, var_12=0, var_136=1, var_18_arg_0=1, var_18_arg_1=1, var_21=1, var_68=0, var_7=0] [L163] EXPR var_18_arg_0 | var_18_arg_1 VAL [mask_SORT_1=1, mask_SORT_67=1023, state_14=0, state_25=0, state_27=0, state_40=0, state_42=0, state_50=1, state_57=0, state_59=0, state_61=0, state_65=0, state_69=0, state_71=0, state_8=0, var_119=104, var_12=0, var_136=1, var_21=1, var_68=0, var_7=0] [L163] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L164] SORT_1 var_22_arg_0 = var_18; [L165] SORT_1 var_22 = ~var_22_arg_0; [L166] SORT_1 var_23_arg_0 = var_21; [L167] SORT_1 var_23_arg_1 = var_22; VAL [mask_SORT_1=1, mask_SORT_67=1023, state_14=0, state_25=0, state_27=0, state_40=0, state_42=0, state_50=1, state_57=0, state_59=0, state_61=0, state_65=0, state_69=0, state_71=0, state_8=0, var_119=104, var_12=0, var_136=1, var_21=1, var_23_arg_0=1, var_23_arg_1=-2, var_68=0, var_7=0] [L168] EXPR var_23_arg_0 & var_23_arg_1 VAL [mask_SORT_1=1, mask_SORT_67=1023, state_14=0, state_25=0, state_27=0, state_40=0, state_42=0, state_50=1, state_57=0, state_59=0, state_61=0, state_65=0, state_69=0, state_71=0, state_8=0, var_119=104, var_12=0, var_136=1, var_21=1, var_68=0, var_7=0] [L168] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L169] EXPR var_23 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_67=1023, state_14=0, state_25=0, state_27=0, state_40=0, state_42=0, state_50=1, state_57=0, state_59=0, state_61=0, state_65=0, state_69=0, state_71=0, state_8=0, var_119=104, var_12=0, var_136=1, var_21=1, var_68=0, var_7=0] [L169] var_23 = var_23 & mask_SORT_1 [L170] SORT_1 bad_24_arg_0 = var_23; [L171] CALL __VERIFIER_assert(!(bad_24_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 139 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 176 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 176 mSDsluCounter, 1920 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1335 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 114 IncrementalHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 585 mSDtfsCounter, 114 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=145occurred in iteration=3, InterpolantAutomatonStates: 14, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 166 NumberOfCodeBlocks, 166 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 240 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-14 07:08:06,998 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.vcegar_QF_BV_itc99_b13_p13.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 7edbd2d714654fb3cac877a34ec7b56a1dc045c2b1f9c322f5dfaacff9b2ba72 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 07:08:09,288 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 07:08:09,371 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-10-14 07:08:09,376 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 07:08:09,376 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 07:08:09,402 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 07:08:09,406 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 07:08:09,407 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 07:08:09,408 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 07:08:09,409 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 07:08:09,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 07:08:09,409 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 07:08:09,410 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 07:08:09,410 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 07:08:09,412 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 07:08:09,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 07:08:09,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 07:08:09,413 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 07:08:09,414 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 07:08:09,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 07:08:09,414 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 07:08:09,415 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 07:08:09,415 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-14 07:08:09,415 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 07:08:09,415 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-14 07:08:09,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 07:08:09,416 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 07:08:09,416 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 07:08:09,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 07:08:09,417 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 07:08:09,417 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 07:08:09,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 07:08:09,418 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 07:08:09,418 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 07:08:09,419 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 07:08:09,419 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-14 07:08:09,419 INFO L153 SettingsManager]: * Command for external solver=cvc5 --incremental --print-success --lang smt [2024-10-14 07:08:09,419 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 07:08:09,420 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 07:08:09,420 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 07:08:09,420 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 07:08:09,421 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-14 07:08:09,421 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7edbd2d714654fb3cac877a34ec7b56a1dc045c2b1f9c322f5dfaacff9b2ba72 [2024-10-14 07:08:09,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 07:08:09,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 07:08:09,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 07:08:09,814 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 07:08:09,814 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 07:08:09,816 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p13.c [2024-10-14 07:08:11,351 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 07:08:11,595 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 07:08:11,596 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p13.c [2024-10-14 07:08:11,618 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bbaea337/7dcd52ccd0674d9389db6d1dc4a6a6e9/FLAGe10e6f855 [2024-10-14 07:08:11,635 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bbaea337/7dcd52ccd0674d9389db6d1dc4a6a6e9 [2024-10-14 07:08:11,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 07:08:11,641 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 07:08:11,642 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 07:08:11,643 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 07:08:11,648 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 07:08:11,649 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:08:11" (1/1) ... [2024-10-14 07:08:11,651 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c48702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:11, skipping insertion in model container [2024-10-14 07:08:11,651 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:08:11" (1/1) ... [2024-10-14 07:08:11,689 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 07:08:11,870 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.vcegar_QF_BV_itc99_b13_p13.c[1266,1279] [2024-10-14 07:08:11,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 07:08:12,008 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 07:08:12,020 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.vcegar_QF_BV_itc99_b13_p13.c[1266,1279] [2024-10-14 07:08:12,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 07:08:12,097 INFO L204 MainTranslator]: Completed translation [2024-10-14 07:08:12,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:12 WrapperNode [2024-10-14 07:08:12,098 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 07:08:12,099 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 07:08:12,099 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 07:08:12,099 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 07:08:12,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:12" (1/1) ... [2024-10-14 07:08:12,124 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:12" (1/1) ... [2024-10-14 07:08:12,169 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 466 [2024-10-14 07:08:12,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 07:08:12,170 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 07:08:12,170 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 07:08:12,171 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 07:08:12,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:12" (1/1) ... [2024-10-14 07:08:12,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:12" (1/1) ... [2024-10-14 07:08:12,190 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:12" (1/1) ... [2024-10-14 07:08:12,210 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 07:08:12,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:12" (1/1) ... [2024-10-14 07:08:12,211 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:12" (1/1) ... [2024-10-14 07:08:12,229 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:12" (1/1) ... [2024-10-14 07:08:12,233 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:12" (1/1) ... [2024-10-14 07:08:12,235 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:12" (1/1) ... [2024-10-14 07:08:12,238 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:12" (1/1) ... [2024-10-14 07:08:12,244 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 07:08:12,245 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 07:08:12,245 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 07:08:12,246 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 07:08:12,247 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:12" (1/1) ... [2024-10-14 07:08:12,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 07:08:12,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 07:08:12,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 07:08:12,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 07:08:12,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 07:08:12,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-14 07:08:12,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 07:08:12,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 07:08:12,486 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 07:08:12,488 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 07:08:12,871 INFO L? ?]: Removed 59 outVars from TransFormulas that were not future-live. [2024-10-14 07:08:12,871 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 07:08:12,914 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 07:08:12,914 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 07:08:12,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:08:12 BoogieIcfgContainer [2024-10-14 07:08:12,914 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 07:08:12,918 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 07:08:12,918 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 07:08:12,921 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 07:08:12,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:08:11" (1/3) ... [2024-10-14 07:08:12,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328a439e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:08:12, skipping insertion in model container [2024-10-14 07:08:12,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:12" (2/3) ... [2024-10-14 07:08:12,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328a439e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:08:12, skipping insertion in model container [2024-10-14 07:08:12,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:08:12" (3/3) ... [2024-10-14 07:08:12,925 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p13.c [2024-10-14 07:08:12,940 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 07:08:12,941 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 07:08:13,000 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 07:08:13,009 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;@147f207d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 07:08:13,010 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 07:08:13,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:08:13,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-14 07:08:13,019 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:08:13,022 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-14 07:08:13,022 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:08:13,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:08:13,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1614770, now seen corresponding path program 1 times [2024-10-14 07:08:13,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 07:08:13,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065423337] [2024-10-14 07:08:13,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:08:13,040 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 07:08:13,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 07:08:13,044 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 07:08:13,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-14 07:08:13,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:08:13,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-14 07:08:13,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 07:08:13,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:08:13,381 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 07:08:13,382 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 07:08:13,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065423337] [2024-10-14 07:08:13,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1065423337] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:08:13,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:08:13,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 07:08:13,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069109451] [2024-10-14 07:08:13,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:08:13,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 07:08:13,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 07:08:13,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 07:08:13,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:08:13,416 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:08:13,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:08:13,486 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2024-10-14 07:08:13,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:08:13,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-10-14 07:08:13,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:08:13,496 INFO L225 Difference]: With dead ends: 15 [2024-10-14 07:08:13,496 INFO L226 Difference]: Without dead ends: 9 [2024-10-14 07:08:13,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:08:13,504 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:08:13,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:08:13,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-10-14 07:08:13,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2024-10-14 07:08:13,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:08:13,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2024-10-14 07:08:13,538 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2024-10-14 07:08:13,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:08:13,538 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2024-10-14 07:08:13,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:08:13,539 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2024-10-14 07:08:13,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-14 07:08:13,539 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:08:13,540 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2024-10-14 07:08:13,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-14 07:08:13,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 07:08:13,741 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:08:13,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:08:13,743 INFO L85 PathProgramCache]: Analyzing trace with hash 865745430, now seen corresponding path program 1 times [2024-10-14 07:08:13,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 07:08:13,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1750037048] [2024-10-14 07:08:13,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:08:13,747 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 07:08:13,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 07:08:13,748 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 07:08:13,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-14 07:08:13,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:08:13,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-14 07:08:13,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 07:08:53,080 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:08:53,081 INFO L311 TraceCheckSpWp]: Computing backward predicates...