./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_p05.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p05.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 ca829ec71663ed4e5ba64ab200a5036617b96aeef2928740446e7c2667cc81d8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 23:39:18,105 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 23:39:18,181 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-12 23:39:18,187 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 23:39:18,188 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 23:39:18,219 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 23:39:18,219 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 23:39:18,220 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 23:39:18,221 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 23:39:18,222 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 23:39:18,222 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 23:39:18,223 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 23:39:18,223 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 23:39:18,224 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 23:39:18,225 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 23:39:18,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 23:39:18,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 23:39:18,226 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 23:39:18,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 23:39:18,230 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 23:39:18,230 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 23:39:18,231 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 23:39:18,231 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 23:39:18,231 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 23:39:18,231 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 23:39:18,232 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 23:39:18,232 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 23:39:18,232 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 23:39:18,232 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 23:39:18,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 23:39:18,233 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 23:39:18,233 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 23:39:18,233 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 23:39:18,234 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 23:39:18,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 23:39:18,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 23:39:18,236 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 23:39:18,236 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 23:39:18,236 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 23:39:18,237 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca829ec71663ed4e5ba64ab200a5036617b96aeef2928740446e7c2667cc81d8 [2024-10-12 23:39:18,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 23:39:18,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 23:39:18,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 23:39:18,537 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 23:39:18,538 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 23:39:18,540 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p05.c [2024-10-12 23:39:20,038 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 23:39:20,220 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 23:39:20,221 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p05.c [2024-10-12 23:39:20,229 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd444dd4f/3454060895d24783853e5c54334cb54c/FLAG3d608100d [2024-10-12 23:39:20,599 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd444dd4f/3454060895d24783853e5c54334cb54c [2024-10-12 23:39:20,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 23:39:20,603 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 23:39:20,604 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 23:39:20,604 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 23:39:20,611 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 23:39:20,612 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:39:20" (1/1) ... [2024-10-12 23:39:20,613 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f962e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:20, skipping insertion in model container [2024-10-12 23:39:20,613 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:39:20" (1/1) ... [2024-10-12 23:39:20,638 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 23:39:20,799 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_p05.c[1266,1279] [2024-10-12 23:39:20,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 23:39:20,851 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 23:39:20,863 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_p05.c[1266,1279] [2024-10-12 23:39:20,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 23:39:20,913 INFO L204 MainTranslator]: Completed translation [2024-10-12 23:39:20,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:20 WrapperNode [2024-10-12 23:39:20,914 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 23:39:20,915 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 23:39:20,915 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 23:39:20,915 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 23:39:20,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:20" (1/1) ... [2024-10-12 23:39:20,933 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:20" (1/1) ... [2024-10-12 23:39:20,968 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 241 [2024-10-12 23:39:20,969 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 23:39:20,970 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 23:39:20,970 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 23:39:20,970 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 23:39:20,984 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:20" (1/1) ... [2024-10-12 23:39:20,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:20" (1/1) ... [2024-10-12 23:39:20,994 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:20" (1/1) ... [2024-10-12 23:39:21,015 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 23:39:21,015 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:20" (1/1) ... [2024-10-12 23:39:21,016 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:20" (1/1) ... [2024-10-12 23:39:21,026 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:20" (1/1) ... [2024-10-12 23:39:21,033 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:20" (1/1) ... [2024-10-12 23:39:21,039 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:20" (1/1) ... [2024-10-12 23:39:21,042 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:20" (1/1) ... [2024-10-12 23:39:21,054 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 23:39:21,057 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 23:39:21,058 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 23:39:21,058 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 23:39:21,059 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:20" (1/1) ... [2024-10-12 23:39:21,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 23:39:21,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 23:39:21,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 23:39:21,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 23:39:21,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 23:39:21,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 23:39:21,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 23:39:21,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 23:39:21,248 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 23:39:21,250 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 23:39:21,602 INFO L? ?]: Removed 68 outVars from TransFormulas that were not future-live. [2024-10-12 23:39:21,603 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 23:39:21,638 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 23:39:21,640 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 23:39:21,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:39:21 BoogieIcfgContainer [2024-10-12 23:39:21,641 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 23:39:21,645 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 23:39:21,645 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 23:39:21,648 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 23:39:21,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:39:20" (1/3) ... [2024-10-12 23:39:21,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2181d486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:39:21, skipping insertion in model container [2024-10-12 23:39:21,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:20" (2/3) ... [2024-10-12 23:39:21,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2181d486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:39:21, skipping insertion in model container [2024-10-12 23:39:21,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:39:21" (3/3) ... [2024-10-12 23:39:21,652 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p05.c [2024-10-12 23:39:21,670 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 23:39:21,671 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 23:39:21,736 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 23:39:21,744 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;@5b454e6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 23:39:21,744 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 23:39:21,748 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 37 states have (on average 1.5135135135135136) internal successors, (56), 38 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:39:21,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-12 23:39:21,754 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:21,754 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 23:39:21,754 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:21,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:21,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1346662363, now seen corresponding path program 1 times [2024-10-12 23:39:21,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:21,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411311970] [2024-10-12 23:39:21,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:21,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:22,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:39:22,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:22,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411311970] [2024-10-12 23:39:22,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411311970] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:22,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:22,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:39:22,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447843022] [2024-10-12 23:39:22,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:22,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 23:39:22,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:22,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 23:39:22,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:39:22,315 INFO L87 Difference]: Start difference. First operand has 39 states, 37 states have (on average 1.5135135135135136) internal successors, (56), 38 states have internal predecessors, (56), 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 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:39:22,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:22,359 INFO L93 Difference]: Finished difference Result 66 states and 96 transitions. [2024-10-12 23:39:22,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:39:22,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2024-10-12 23:39:22,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:22,371 INFO L225 Difference]: With dead ends: 66 [2024-10-12 23:39:22,371 INFO L226 Difference]: Without dead ends: 40 [2024-10-12 23:39:22,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:39:22,379 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 23:39:22,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 148 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 23:39:22,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-10-12 23:39:22,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-10-12 23:39:22,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.435897435897436) internal successors, (56), 39 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:39:22,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 56 transitions. [2024-10-12 23:39:22,416 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 56 transitions. Word has length 14 [2024-10-12 23:39:22,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:22,416 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 56 transitions. [2024-10-12 23:39:22,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:39:22,417 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 56 transitions. [2024-10-12 23:39:22,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-12 23:39:22,417 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:22,417 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 23:39:22,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 23:39:22,418 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:22,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:22,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1204834925, now seen corresponding path program 1 times [2024-10-12 23:39:22,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:22,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580684606] [2024-10-12 23:39:22,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:22,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:22,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:39:22,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:22,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580684606] [2024-10-12 23:39:22,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580684606] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:22,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:22,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:39:22,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047901983] [2024-10-12 23:39:22,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:22,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 23:39:22,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:22,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 23:39:22,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:39:22,573 INFO L87 Difference]: Start difference. First operand 40 states and 56 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:39:22,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:22,599 INFO L93 Difference]: Finished difference Result 69 states and 96 transitions. [2024-10-12 23:39:22,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:39:22,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2024-10-12 23:39:22,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:22,600 INFO L225 Difference]: With dead ends: 69 [2024-10-12 23:39:22,601 INFO L226 Difference]: Without dead ends: 42 [2024-10-12 23:39:22,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:39:22,602 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 23:39:22,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 23:39:22,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-10-12 23:39:22,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-10-12 23:39:22,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.4146341463414633) internal successors, (58), 41 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:39:22,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 58 transitions. [2024-10-12 23:39:22,610 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 58 transitions. Word has length 15 [2024-10-12 23:39:22,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:22,610 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 58 transitions. [2024-10-12 23:39:22,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:39:22,611 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2024-10-12 23:39:22,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-12 23:39:22,611 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:22,612 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 23:39:22,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 23:39:22,613 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:22,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:22,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1892178430, now seen corresponding path program 1 times [2024-10-12 23:39:22,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:22,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689245590] [2024-10-12 23:39:22,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:22,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:22,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:39:22,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 23:39:22,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689245590] [2024-10-12 23:39:22,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689245590] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:22,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:22,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 23:39:22,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127015659] [2024-10-12 23:39:22,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:22,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 23:39:22,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 23:39:22,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 23:39:22,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 23:39:22,813 INFO L87 Difference]: Start difference. First operand 42 states and 58 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:39:22,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:22,860 INFO L93 Difference]: Finished difference Result 69 states and 95 transitions. [2024-10-12 23:39:22,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:39:22,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-12 23:39:22,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:22,862 INFO L225 Difference]: With dead ends: 69 [2024-10-12 23:39:22,862 INFO L226 Difference]: Without dead ends: 40 [2024-10-12 23:39:22,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 23:39:22,864 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 47 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 23:39:22,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 136 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 23:39:22,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-10-12 23:39:22,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-10-12 23:39:22,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 39 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:39:22,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2024-10-12 23:39:22,872 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 16 [2024-10-12 23:39:22,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:22,873 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2024-10-12 23:39:22,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:39:22,873 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2024-10-12 23:39:22,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-12 23:39:22,874 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:22,876 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 23:39:22,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 23:39:22,877 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:22,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:22,877 INFO L85 PathProgramCache]: Analyzing trace with hash 92534352, now seen corresponding path program 1 times [2024-10-12 23:39:22,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 23:39:22,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71480266] [2024-10-12 23:39:22,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:22,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 23:39:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 23:39:22,918 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 23:39:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 23:39:22,972 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 23:39:22,972 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-12 23:39:22,973 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 23:39:22,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 23:39:22,978 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-12 23:39:23,010 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 23:39:23,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:39:23 BoogieIcfgContainer [2024-10-12 23:39:23,014 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 23:39:23,014 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 23:39:23,014 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 23:39:23,015 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 23:39:23,015 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:39:21" (3/4) ... [2024-10-12 23:39:23,023 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-12 23:39:23,024 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 23:39:23,025 INFO L158 Benchmark]: Toolchain (without parser) took 2421.61ms. Allocated memory was 159.4MB in the beginning and 222.3MB in the end (delta: 62.9MB). Free memory was 102.9MB in the beginning and 75.9MB in the end (delta: 27.0MB). Peak memory consumption was 93.0MB. Max. memory is 16.1GB. [2024-10-12 23:39:23,025 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 159.4MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 23:39:23,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.29ms. Allocated memory is still 159.4MB. Free memory was 102.8MB in the beginning and 88.5MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-12 23:39:23,026 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.00ms. Allocated memory is still 159.4MB. Free memory was 88.5MB in the beginning and 84.1MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 23:39:23,028 INFO L158 Benchmark]: Boogie Preprocessor took 84.87ms. Allocated memory is still 159.4MB. Free memory was 84.1MB in the beginning and 80.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 23:39:23,029 INFO L158 Benchmark]: RCFGBuilder took 584.22ms. Allocated memory was 159.4MB in the beginning and 222.3MB in the end (delta: 62.9MB). Free memory was 80.7MB in the beginning and 179.7MB in the end (delta: -99.0MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2024-10-12 23:39:23,029 INFO L158 Benchmark]: TraceAbstraction took 1369.19ms. Allocated memory is still 222.3MB. Free memory was 178.7MB in the beginning and 77.0MB in the end (delta: 101.7MB). Peak memory consumption was 100.7MB. Max. memory is 16.1GB. [2024-10-12 23:39:23,029 INFO L158 Benchmark]: Witness Printer took 9.73ms. Allocated memory is still 222.3MB. Free memory was 77.0MB in the beginning and 75.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 23:39:23,031 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 159.4MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.29ms. Allocated memory is still 159.4MB. Free memory was 102.8MB in the beginning and 88.5MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.00ms. Allocated memory is still 159.4MB. Free memory was 88.5MB in the beginning and 84.1MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.87ms. Allocated memory is still 159.4MB. Free memory was 84.1MB in the beginning and 80.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 584.22ms. Allocated memory was 159.4MB in the beginning and 222.3MB in the end (delta: 62.9MB). Free memory was 80.7MB in the beginning and 179.7MB in the end (delta: -99.0MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1369.19ms. Allocated memory is still 222.3MB. Free memory was 178.7MB in the beginning and 77.0MB in the end (delta: 101.7MB). Peak memory consumption was 100.7MB. Max. memory is 16.1GB. * Witness Printer took 9.73ms. Allocated memory is still 222.3MB. Free memory was 77.0MB in the beginning and 75.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 114. 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_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 4); [L33] const SORT_7 msb_SORT_7 = (SORT_7)1 << (4 - 1); [L35] const SORT_62 mask_SORT_62 = (SORT_62)-1 >> (sizeof(SORT_62) * 8 - 10); [L36] const SORT_62 msb_SORT_62 = (SORT_62)1 << (10 - 1); [L38] const SORT_7 var_8 = 0; [L39] const SORT_1 var_16 = 1; [L40] const SORT_1 var_20 = 0; [L42] SORT_1 input_2; [L43] SORT_3 input_4; [L44] SORT_1 input_5; [L45] SORT_1 input_6; [L46] SORT_1 input_23; [L47] SORT_1 input_25; [L48] SORT_1 input_27; [L49] SORT_1 input_29; [L50] SORT_1 input_31; [L51] SORT_1 input_33; [L52] SORT_1 input_35; [L53] SORT_1 input_37; [L54] SORT_1 input_39; [L55] SORT_1 input_41; [L56] SORT_1 input_43; [L57] SORT_3 input_45; [L58] SORT_1 input_48; [L59] SORT_1 input_50; [L60] SORT_1 input_52; [L61] SORT_1 input_54; [L62] SORT_1 input_56; [L63] SORT_1 input_58; [L64] SORT_1 input_60; [L65] SORT_62 input_63; [L66] SORT_1 input_65; [L68] EXPR __VERIFIER_nondet_uchar() & mask_SORT_7 VAL [mask_SORT_1=1, mask_SORT_7=15, var_16=1, var_20=0, var_8=0] [L68] SORT_7 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_7; [L69] EXPR __VERIFIER_nondet_uchar() & mask_SORT_7 VAL [mask_SORT_1=1, mask_SORT_7=15, var_16=1, var_20=0, var_8=0] [L69] SORT_7 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_7; [L70] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_7=15, var_16=1, var_20=0, var_8=0] [L70] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] SORT_7 init_10_arg_1 = var_8; [L73] state_9 = init_10_arg_1 [L74] SORT_7 init_12_arg_1 = var_8; [L75] state_11 = init_12_arg_1 [L76] SORT_1 init_22_arg_1 = var_20; [L77] state_21 = init_22_arg_1 VAL [mask_SORT_1=1, mask_SORT_7=15, state_11=0, state_21=0, state_9=0, var_16=1, var_20=0] [L80] input_2 = __VERIFIER_nondet_uchar() [L81] input_4 = __VERIFIER_nondet_uchar() [L82] input_5 = __VERIFIER_nondet_uchar() [L83] input_6 = __VERIFIER_nondet_uchar() [L84] input_23 = __VERIFIER_nondet_uchar() [L85] input_25 = __VERIFIER_nondet_uchar() [L86] input_27 = __VERIFIER_nondet_uchar() [L87] input_29 = __VERIFIER_nondet_uchar() [L88] input_31 = __VERIFIER_nondet_uchar() [L89] input_33 = __VERIFIER_nondet_uchar() [L90] input_35 = __VERIFIER_nondet_uchar() [L91] input_37 = __VERIFIER_nondet_uchar() [L92] input_39 = __VERIFIER_nondet_uchar() [L93] input_41 = __VERIFIER_nondet_uchar() [L94] input_43 = __VERIFIER_nondet_uchar() [L95] input_45 = __VERIFIER_nondet_uchar() [L96] input_48 = __VERIFIER_nondet_uchar() [L97] input_50 = __VERIFIER_nondet_uchar() [L98] input_52 = __VERIFIER_nondet_uchar() [L99] input_54 = __VERIFIER_nondet_uchar() [L100] input_56 = __VERIFIER_nondet_uchar() [L101] input_58 = __VERIFIER_nondet_uchar() [L102] input_60 = __VERIFIER_nondet_uchar() [L103] input_63 = __VERIFIER_nondet_ushort() [L104] input_65 = __VERIFIER_nondet_uchar() [L107] SORT_7 var_13_arg_0 = state_9; [L108] SORT_7 var_13_arg_1 = state_11; [L109] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L110] SORT_1 var_17_arg_0 = var_13; [L111] SORT_1 var_17 = ~var_17_arg_0; [L112] SORT_1 var_18_arg_0 = var_16; [L113] SORT_1 var_18_arg_1 = var_17; VAL [mask_SORT_1=1, mask_SORT_7=15, state_11=0, state_21=0, state_9=0, var_16=1, var_18_arg_0=1, var_18_arg_1=-2, var_20=0] [L114] EXPR var_18_arg_0 & var_18_arg_1 VAL [mask_SORT_1=1, mask_SORT_7=15, state_11=0, state_21=0, state_9=0, var_16=1, var_20=0] [L114] SORT_1 var_18 = var_18_arg_0 & var_18_arg_1; [L115] EXPR var_18 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_7=15, state_11=0, state_21=0, state_9=0, var_16=1, var_20=0] [L115] var_18 = var_18 & mask_SORT_1 [L116] SORT_1 bad_19_arg_0 = var_18; [L117] CALL __VERIFIER_assert(!(bad_19_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 47 mSDsluCounter, 429 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 281 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 148 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=2, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 87 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-12 23:39:23,065 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_p05.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 ca829ec71663ed4e5ba64ab200a5036617b96aeef2928740446e7c2667cc81d8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 23:39:25,275 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 23:39:25,349 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-10-12 23:39:25,354 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 23:39:25,356 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 23:39:25,388 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 23:39:25,390 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 23:39:25,391 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 23:39:25,391 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 23:39:25,392 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 23:39:25,392 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 23:39:25,392 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 23:39:25,393 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 23:39:25,395 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 23:39:25,395 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 23:39:25,395 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 23:39:25,396 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 23:39:25,396 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 23:39:25,396 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 23:39:25,396 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 23:39:25,397 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 23:39:25,397 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-12 23:39:25,397 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-12 23:39:25,398 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 23:39:25,398 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-12 23:39:25,398 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 23:39:25,399 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 23:39:25,399 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 23:39:25,399 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 23:39:25,400 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 23:39:25,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 23:39:25,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 23:39:25,401 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 23:39:25,401 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 23:39:25,402 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 23:39:25,402 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-12 23:39:25,409 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-12 23:39:25,410 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 23:39:25,410 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 23:39:25,410 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 23:39:25,410 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 23:39:25,412 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-12 23:39:25,412 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca829ec71663ed4e5ba64ab200a5036617b96aeef2928740446e7c2667cc81d8 [2024-10-12 23:39:25,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 23:39:25,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 23:39:25,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 23:39:25,734 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 23:39:25,735 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 23:39:25,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p05.c [2024-10-12 23:39:27,359 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 23:39:27,585 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 23:39:27,585 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p05.c [2024-10-12 23:39:27,600 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/762bd35f0/128a99aa34c94235954789be07a574b2/FLAG05d58873a [2024-10-12 23:39:27,617 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/762bd35f0/128a99aa34c94235954789be07a574b2 [2024-10-12 23:39:27,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 23:39:27,621 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 23:39:27,623 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 23:39:27,625 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 23:39:27,630 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 23:39:27,630 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:39:27" (1/1) ... [2024-10-12 23:39:27,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@556155aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:27, skipping insertion in model container [2024-10-12 23:39:27,631 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:39:27" (1/1) ... [2024-10-12 23:39:27,667 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 23:39:27,852 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_p05.c[1266,1279] [2024-10-12 23:39:27,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 23:39:27,919 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 23:39:27,931 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_p05.c[1266,1279] [2024-10-12 23:39:27,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 23:39:27,974 INFO L204 MainTranslator]: Completed translation [2024-10-12 23:39:27,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:27 WrapperNode [2024-10-12 23:39:27,974 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 23:39:27,975 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 23:39:27,976 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 23:39:27,976 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 23:39:27,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:27" (1/1) ... [2024-10-12 23:39:27,991 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:27" (1/1) ... [2024-10-12 23:39:28,020 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 177 [2024-10-12 23:39:28,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 23:39:28,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 23:39:28,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 23:39:28,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 23:39:28,034 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:27" (1/1) ... [2024-10-12 23:39:28,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:27" (1/1) ... [2024-10-12 23:39:28,041 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:27" (1/1) ... [2024-10-12 23:39:28,054 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 23:39:28,057 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:27" (1/1) ... [2024-10-12 23:39:28,058 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:27" (1/1) ... [2024-10-12 23:39:28,067 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:27" (1/1) ... [2024-10-12 23:39:28,070 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:27" (1/1) ... [2024-10-12 23:39:28,075 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:27" (1/1) ... [2024-10-12 23:39:28,078 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:27" (1/1) ... [2024-10-12 23:39:28,083 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 23:39:28,084 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 23:39:28,084 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 23:39:28,084 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 23:39:28,085 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:27" (1/1) ... [2024-10-12 23:39:28,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 23:39:28,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 23:39:28,116 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 23:39:28,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 23:39:28,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 23:39:28,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-12 23:39:28,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 23:39:28,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 23:39:28,284 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 23:39:28,286 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 23:39:28,481 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-10-12 23:39:28,483 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 23:39:28,518 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 23:39:28,518 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 23:39:28,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:39:28 BoogieIcfgContainer [2024-10-12 23:39:28,522 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 23:39:28,523 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 23:39:28,524 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 23:39:28,528 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 23:39:28,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:39:27" (1/3) ... [2024-10-12 23:39:28,529 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ebad84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:39:28, skipping insertion in model container [2024-10-12 23:39:28,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:39:27" (2/3) ... [2024-10-12 23:39:28,530 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ebad84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:39:28, skipping insertion in model container [2024-10-12 23:39:28,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:39:28" (3/3) ... [2024-10-12 23:39:28,532 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p05.c [2024-10-12 23:39:28,549 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 23:39:28,550 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 23:39:28,608 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 23:39:28,614 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;@73b6c1a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 23:39:28,614 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 23:39:28,618 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:39:28,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-12 23:39:28,624 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 23:39:28,624 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-12 23:39:28,625 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 23:39:28,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 23:39:28,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1614770, now seen corresponding path program 1 times [2024-10-12 23:39:28,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 23:39:28,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1115502019] [2024-10-12 23:39:28,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 23:39:28,643 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 23:39:28,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 23:39:28,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 23:39:28,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-12 23:39:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 23:39:28,766 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-12 23:39:28,777 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 23:39:28,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 23:39:28,956 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 23:39:28,956 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 23:39:28,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1115502019] [2024-10-12 23:39:28,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1115502019] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 23:39:28,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 23:39:28,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 23:39:28,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336995019] [2024-10-12 23:39:28,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 23:39:28,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 23:39:28,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 23:39:28,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 23:39:28,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 23:39:28,993 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:39:29,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 23:39:29,043 INFO L93 Difference]: Finished difference Result 10 states and 13 transitions. [2024-10-12 23:39:29,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 23:39:29,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-10-12 23:39:29,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 23:39:29,056 INFO L225 Difference]: With dead ends: 10 [2024-10-12 23:39:29,056 INFO L226 Difference]: Without dead ends: 0 [2024-10-12 23:39:29,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 23:39:29,062 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 23:39:29,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 23:39:29,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-12 23:39:29,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-12 23:39:29,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:39:29,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-12 23:39:29,088 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2024-10-12 23:39:29,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 23:39:29,088 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 23:39:29,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 23:39:29,089 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-12 23:39:29,089 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-12 23:39:29,092 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 23:39:29,096 INFO L540 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)] Forceful destruction successful, exit code 0 [2024-10-12 23:39:29,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 23:39:29,300 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-12 23:39:29,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-12 23:39:29,322 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 23:39:29,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:39:29 BoogieIcfgContainer [2024-10-12 23:39:29,336 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 23:39:29,337 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 23:39:29,337 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 23:39:29,337 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 23:39:29,338 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:39:28" (3/4) ... [2024-10-12 23:39:29,340 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 23:39:29,350 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-12 23:39:29,351 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-12 23:39:29,351 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-12 23:39:29,352 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-12 23:39:29,463 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 23:39:29,464 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 23:39:29,464 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 23:39:29,465 INFO L158 Benchmark]: Toolchain (without parser) took 1843.70ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 29.3MB in the beginning and 33.6MB in the end (delta: -4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-12 23:39:29,465 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory is still 27.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 23:39:29,466 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.59ms. Allocated memory is still 62.9MB. Free memory was 29.1MB in the beginning and 30.5MB in the end (delta: -1.4MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2024-10-12 23:39:29,466 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.03ms. Allocated memory is still 62.9MB. Free memory was 30.5MB in the beginning and 28.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 23:39:29,467 INFO L158 Benchmark]: Boogie Preprocessor took 59.94ms. Allocated memory is still 62.9MB. Free memory was 28.5MB in the beginning and 26.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 23:39:29,467 INFO L158 Benchmark]: RCFGBuilder took 437.94ms. Allocated memory is still 62.9MB. Free memory was 26.1MB in the beginning and 30.4MB in the end (delta: -4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-12 23:39:29,467 INFO L158 Benchmark]: TraceAbstraction took 812.99ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 29.7MB in the beginning and 39.9MB in the end (delta: -10.2MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. [2024-10-12 23:39:29,468 INFO L158 Benchmark]: Witness Printer took 127.49ms. Allocated memory is still 75.5MB. Free memory was 39.9MB in the beginning and 33.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-12 23:39:29,469 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory is still 27.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.59ms. Allocated memory is still 62.9MB. Free memory was 29.1MB in the beginning and 30.5MB in the end (delta: -1.4MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.03ms. Allocated memory is still 62.9MB. Free memory was 30.5MB in the beginning and 28.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.94ms. Allocated memory is still 62.9MB. Free memory was 28.5MB in the beginning and 26.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 437.94ms. Allocated memory is still 62.9MB. Free memory was 26.1MB in the beginning and 30.4MB in the end (delta: -4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 812.99ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 29.7MB in the beginning and 39.9MB in the end (delta: -10.2MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. * Witness Printer took 127.49ms. Allocated memory is still 75.5MB. Free memory was 39.9MB in the beginning and 33.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 3 NumberOfNonLiveVariables, 32 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: (((0 == state_9) && (0 == state_11)) && (1 == mask_SORT_1)) RESULT: Ultimate proved your program to be correct! [2024-10-12 23:39:29,494 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE