./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.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 53546c4dcb2cff2eaca8f311738b2b6b829a702db585862ee7ca5a0b611bb252 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 18:15:03,025 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 18:15:03,089 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-18 18:15:03,095 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 18:15:03,095 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 18:15:03,130 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 18:15:03,131 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 18:15:03,132 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 18:15:03,133 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 18:15:03,134 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 18:15:03,135 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 18:15:03,135 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 18:15:03,136 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 18:15:03,138 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 18:15:03,138 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 18:15:03,139 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 18:15:03,139 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 18:15:03,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 18:15:03,139 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 18:15:03,140 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 18:15:03,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 18:15:03,141 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 18:15:03,141 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 18:15:03,141 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 18:15:03,141 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 18:15:03,142 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 18:15:03,142 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 18:15:03,145 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 18:15:03,145 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 18:15:03,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 18:15:03,145 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 18:15:03,146 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 18:15:03,146 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 18:15:03,146 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 18:15:03,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 18:15:03,147 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 18:15:03,147 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 18:15:03,148 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 18:15:03,148 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 18:15:03,148 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53546c4dcb2cff2eaca8f311738b2b6b829a702db585862ee7ca5a0b611bb252 [2024-11-18 18:15:03,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 18:15:03,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 18:15:03,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 18:15:03,451 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 18:15:03,452 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 18:15:03,453 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2024-11-18 18:15:04,923 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 18:15:05,128 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 18:15:05,129 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2024-11-18 18:15:05,136 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4676631ca/65434b8d96104bf091c7b6365581b3c1/FLAGca13e81b8 [2024-11-18 18:15:05,148 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4676631ca/65434b8d96104bf091c7b6365581b3c1 [2024-11-18 18:15:05,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 18:15:05,152 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 18:15:05,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 18:15:05,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 18:15:05,162 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 18:15:05,163 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:15:05" (1/1) ... [2024-11-18 18:15:05,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c08e32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:05, skipping insertion in model container [2024-11-18 18:15:05,166 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:15:05" (1/1) ... [2024-11-18 18:15:05,193 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 18:15:05,384 WARN L250 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_p17.c[1266,1279] [2024-11-18 18:15:05,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 18:15:05,463 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 18:15:05,476 WARN L250 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_p17.c[1266,1279] [2024-11-18 18:15:05,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 18:15:05,537 INFO L204 MainTranslator]: Completed translation [2024-11-18 18:15:05,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:05 WrapperNode [2024-11-18 18:15:05,538 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 18:15:05,540 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 18:15:05,540 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 18:15:05,540 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 18:15:05,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:05" (1/1) ... [2024-11-18 18:15:05,572 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:05" (1/1) ... [2024-11-18 18:15:05,632 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 263 [2024-11-18 18:15:05,633 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 18:15:05,634 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 18:15:05,634 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 18:15:05,634 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 18:15:05,645 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:05" (1/1) ... [2024-11-18 18:15:05,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:05" (1/1) ... [2024-11-18 18:15:05,652 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:05" (1/1) ... [2024-11-18 18:15:05,672 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]. [2024-11-18 18:15:05,676 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:05" (1/1) ... [2024-11-18 18:15:05,676 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:05" (1/1) ... [2024-11-18 18:15:05,693 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:05" (1/1) ... [2024-11-18 18:15:05,701 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:05" (1/1) ... [2024-11-18 18:15:05,707 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:05" (1/1) ... [2024-11-18 18:15:05,710 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:05" (1/1) ... [2024-11-18 18:15:05,715 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 18:15:05,716 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 18:15:05,716 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 18:15:05,716 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 18:15:05,717 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:05" (1/1) ... [2024-11-18 18:15:05,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 18:15:05,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 18:15:05,757 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) [2024-11-18 18:15:05,764 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 [2024-11-18 18:15:05,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 18:15:05,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 18:15:05,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 18:15:05,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 18:15:05,930 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 18:15:05,932 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 18:15:06,330 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-11-18 18:15:06,330 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 18:15:06,345 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 18:15:06,347 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 18:15:06,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:15:06 BoogieIcfgContainer [2024-11-18 18:15:06,349 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 18:15:06,352 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 18:15:06,353 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 18:15:06,356 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 18:15:06,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:15:05" (1/3) ... [2024-11-18 18:15:06,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@993b084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:15:06, skipping insertion in model container [2024-11-18 18:15:06,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:05" (2/3) ... [2024-11-18 18:15:06,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@993b084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:15:06, skipping insertion in model container [2024-11-18 18:15:06,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:15:06" (3/3) ... [2024-11-18 18:15:06,360 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2024-11-18 18:15:06,375 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 18:15:06,375 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 18:15:06,510 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 18:15:06,519 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;@1a585e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 18:15:06,519 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 18:15:06,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 44 states have (on average 1.4772727272727273) internal successors, (65), 45 states have internal predecessors, (65), 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) [2024-11-18 18:15:06,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-18 18:15:06,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:15:06,537 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:15:06,537 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:15:06,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:15:06,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1343812480, now seen corresponding path program 1 times [2024-11-18 18:15:06,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:15:06,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308293983] [2024-11-18 18:15:06,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:15:06,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:15:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:15:07,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:15:07,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:15:07,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308293983] [2024-11-18 18:15:07,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308293983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:15:07,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:15:07,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 18:15:07,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488685874] [2024-11-18 18:15:07,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:15:07,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 18:15:07,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:15:07,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 18:15:07,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 18:15:07,181 INFO L87 Difference]: Start difference. First operand has 46 states, 44 states have (on average 1.4772727272727273) internal successors, (65), 45 states have internal predecessors, (65), 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 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2024-11-18 18:15:07,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:15:07,226 INFO L93 Difference]: Finished difference Result 77 states and 111 transitions. [2024-11-18 18:15:07,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 18:15:07,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 21 [2024-11-18 18:15:07,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:15:07,241 INFO L225 Difference]: With dead ends: 77 [2024-11-18 18:15:07,242 INFO L226 Difference]: Without dead ends: 45 [2024-11-18 18:15:07,245 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 [2024-11-18 18:15:07,248 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:15:07,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 171 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:15:07,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-18 18:15:07,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-18 18:15:07,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 44 states have internal predecessors, (63), 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) [2024-11-18 18:15:07,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2024-11-18 18:15:07,286 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 63 transitions. Word has length 21 [2024-11-18 18:15:07,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:15:07,288 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 63 transitions. [2024-11-18 18:15:07,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2024-11-18 18:15:07,288 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 63 transitions. [2024-11-18 18:15:07,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-18 18:15:07,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:15:07,289 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:15:07,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 18:15:07,290 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:15:07,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:15:07,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1293181337, now seen corresponding path program 1 times [2024-11-18 18:15:07,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:15:07,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275904430] [2024-11-18 18:15:07,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:15:07,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:15:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:15:07,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:15:07,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:15:07,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275904430] [2024-11-18 18:15:07,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275904430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:15:07,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:15:07,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 18:15:07,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607608041] [2024-11-18 18:15:07,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:15:07,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 18:15:07,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:15:07,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 18:15:07,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 18:15:07,450 INFO L87 Difference]: Start difference. First operand 45 states and 63 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2024-11-18 18:15:07,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:15:07,484 INFO L93 Difference]: Finished difference Result 78 states and 109 transitions. [2024-11-18 18:15:07,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 18:15:07,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2024-11-18 18:15:07,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:15:07,486 INFO L225 Difference]: With dead ends: 78 [2024-11-18 18:15:07,486 INFO L226 Difference]: Without dead ends: 47 [2024-11-18 18:15:07,487 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 [2024-11-18 18:15:07,488 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:15:07,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 167 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:15:07,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-18 18:15:07,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-18 18:15:07,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.4130434782608696) internal successors, (65), 46 states have internal predecessors, (65), 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) [2024-11-18 18:15:07,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 65 transitions. [2024-11-18 18:15:07,493 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 65 transitions. Word has length 22 [2024-11-18 18:15:07,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:15:07,494 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 65 transitions. [2024-11-18 18:15:07,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2024-11-18 18:15:07,494 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 65 transitions. [2024-11-18 18:15:07,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-18 18:15:07,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:15:07,495 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:15:07,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 18:15:07,496 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:15:07,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:15:07,496 INFO L85 PathProgramCache]: Analyzing trace with hash 335949945, now seen corresponding path program 1 times [2024-11-18 18:15:07,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:15:07,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450037136] [2024-11-18 18:15:07,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:15:07,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:15:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:15:07,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:15:07,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:15:07,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450037136] [2024-11-18 18:15:07,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450037136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:15:07,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:15:07,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 18:15:07,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187440411] [2024-11-18 18:15:07,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:15:07,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 18:15:07,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:15:07,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 18:15:07,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 18:15:07,853 INFO L87 Difference]: Start difference. First operand 47 states and 65 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-11-18 18:15:07,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:15:07,888 INFO L93 Difference]: Finished difference Result 80 states and 110 transitions. [2024-11-18 18:15:07,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 18:15:07,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 23 [2024-11-18 18:15:07,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:15:07,892 INFO L225 Difference]: With dead ends: 80 [2024-11-18 18:15:07,892 INFO L226 Difference]: Without dead ends: 47 [2024-11-18 18:15:07,893 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 [2024-11-18 18:15:07,894 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 6 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 155 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 [2024-11-18 18:15:07,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 155 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:15:07,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-18 18:15:07,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-18 18:15:07,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.391304347826087) internal successors, (64), 46 states have internal predecessors, (64), 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) [2024-11-18 18:15:07,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 64 transitions. [2024-11-18 18:15:07,904 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 64 transitions. Word has length 23 [2024-11-18 18:15:07,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:15:07,904 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 64 transitions. [2024-11-18 18:15:07,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-11-18 18:15:07,905 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 64 transitions. [2024-11-18 18:15:07,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-18 18:15:07,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:15:07,905 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:15:07,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 18:15:07,906 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:15:07,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:15:07,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1561566688, now seen corresponding path program 1 times [2024-11-18 18:15:07,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:15:07,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304855688] [2024-11-18 18:15:07,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:15:07,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:15:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:15:08,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:15:08,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:15:08,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304855688] [2024-11-18 18:15:08,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304855688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:15:08,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:15:08,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 18:15:08,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997991922] [2024-11-18 18:15:08,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:15:08,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 18:15:08,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:15:08,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 18:15:08,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:15:08,266 INFO L87 Difference]: Start difference. First operand 47 states and 64 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-11-18 18:15:08,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:15:08,325 INFO L93 Difference]: Finished difference Result 84 states and 113 transitions. [2024-11-18 18:15:08,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:15:08,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2024-11-18 18:15:08,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:15:08,328 INFO L225 Difference]: With dead ends: 84 [2024-11-18 18:15:08,329 INFO L226 Difference]: Without dead ends: 51 [2024-11-18 18:15:08,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:15:08,331 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 53 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:15:08,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 159 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:15:08,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-18 18:15:08,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2024-11-18 18:15:08,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 49 states have internal predecessors, (67), 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) [2024-11-18 18:15:08,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 67 transitions. [2024-11-18 18:15:08,339 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 67 transitions. Word has length 24 [2024-11-18 18:15:08,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:15:08,339 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 67 transitions. [2024-11-18 18:15:08,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-11-18 18:15:08,340 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 67 transitions. [2024-11-18 18:15:08,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-18 18:15:08,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:15:08,341 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:15:08,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 18:15:08,341 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:15:08,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:15:08,342 INFO L85 PathProgramCache]: Analyzing trace with hash -844580682, now seen corresponding path program 1 times [2024-11-18 18:15:08,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:15:08,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826273225] [2024-11-18 18:15:08,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:15:08,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:15:08,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 18:15:08,405 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 18:15:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 18:15:08,467 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 18:15:08,467 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 18:15:08,469 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 18:15:08,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 18:15:08,475 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-18 18:15:08,515 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 18:15:08,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:15:08 BoogieIcfgContainer [2024-11-18 18:15:08,520 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 18:15:08,521 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 18:15:08,521 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 18:15:08,522 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 18:15:08,522 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:15:06" (3/4) ... [2024-11-18 18:15:08,525 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-18 18:15:08,526 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 18:15:08,527 INFO L158 Benchmark]: Toolchain (without parser) took 3374.74ms. Allocated memory was 165.7MB in the beginning and 239.1MB in the end (delta: 73.4MB). Free memory was 112.6MB in the beginning and 139.7MB in the end (delta: -27.1MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2024-11-18 18:15:08,527 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 165.7MB. Free memory is still 139.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 18:15:08,528 INFO L158 Benchmark]: CACSL2BoogieTranslator took 382.95ms. Allocated memory is still 165.7MB. Free memory was 112.3MB in the beginning and 97.4MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-18 18:15:08,528 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.56ms. Allocated memory is still 165.7MB. Free memory was 97.4MB in the beginning and 92.8MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 18:15:08,529 INFO L158 Benchmark]: Boogie Preprocessor took 81.14ms. Allocated memory is still 165.7MB. Free memory was 92.8MB in the beginning and 89.3MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 18:15:08,529 INFO L158 Benchmark]: RCFGBuilder took 633.21ms. Allocated memory is still 165.7MB. Free memory was 89.3MB in the beginning and 62.9MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-18 18:15:08,529 INFO L158 Benchmark]: TraceAbstraction took 2167.94ms. Allocated memory was 165.7MB in the beginning and 239.1MB in the end (delta: 73.4MB). Free memory was 62.3MB in the beginning and 140.8MB in the end (delta: -78.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 18:15:08,529 INFO L158 Benchmark]: Witness Printer took 5.24ms. Allocated memory is still 239.1MB. Free memory was 140.8MB in the beginning and 139.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 18:15:08,534 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 165.7MB. Free memory is still 139.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 382.95ms. Allocated memory is still 165.7MB. Free memory was 112.3MB in the beginning and 97.4MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.56ms. Allocated memory is still 165.7MB. Free memory was 97.4MB in the beginning and 92.8MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.14ms. Allocated memory is still 165.7MB. Free memory was 92.8MB in the beginning and 89.3MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 633.21ms. Allocated memory is still 165.7MB. Free memory was 89.3MB in the beginning and 62.9MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2167.94ms. Allocated memory was 165.7MB in the beginning and 239.1MB in the end (delta: 73.4MB). Free memory was 62.3MB in the beginning and 140.8MB in the end (delta: -78.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.24ms. Allocated memory is still 239.1MB. Free memory was 140.8MB in the beginning and 139.7MB 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 bitwiseOr at line 126. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L32] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 32); [L33] const SORT_10 msb_SORT_10 = (SORT_10)1 << (32 - 1); [L35] const SORT_32 mask_SORT_32 = (SORT_32)-1 >> (sizeof(SORT_32) * 8 - 4); [L36] const SORT_32 msb_SORT_32 = (SORT_32)1 << (4 - 1); [L38] const SORT_68 mask_SORT_68 = (SORT_68)-1 >> (sizeof(SORT_68) * 8 - 10); [L39] const SORT_68 msb_SORT_68 = (SORT_68)1 << (10 - 1); [L41] const SORT_1 var_7 = 0; [L42] const SORT_10 var_12 = 0; [L43] const SORT_1 var_22 = 1; [L45] SORT_1 input_2; [L46] SORT_3 input_4; [L47] SORT_1 input_5; [L48] SORT_1 input_6; [L49] SORT_1 input_28; [L50] SORT_1 input_30; [L51] SORT_32 input_33; [L52] SORT_1 input_35; [L53] SORT_32 input_37; [L54] SORT_1 input_39; [L55] SORT_1 input_41; [L56] SORT_1 input_43; [L57] SORT_1 input_45; [L58] SORT_1 input_47; [L59] SORT_1 input_49; [L60] SORT_1 input_51; [L61] SORT_1 input_53; [L62] SORT_3 input_55; [L63] SORT_1 input_58; [L64] SORT_1 input_60; [L65] SORT_1 input_62; [L66] SORT_1 input_64; [L67] SORT_1 input_66; [L68] SORT_68 input_69; [L69] SORT_1 input_71; [L71] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, var_12=0, var_22=1, var_7=0] [L71] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, var_12=0, var_22=1, var_7=0] [L72] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L73] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, var_12=0, var_22=1, var_7=0] [L73] SORT_1 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_1 init_9_arg_1 = var_7; [L76] state_8 = init_9_arg_1 [L77] SORT_1 init_16_arg_1 = var_7; [L78] state_15 = init_16_arg_1 [L79] SORT_1 init_27_arg_1 = var_7; [L80] state_26 = init_27_arg_1 VAL [mask_SORT_1=1, state_15=0, state_26=0, state_8=0, var_12=0, var_22=1, var_7=0] [L83] input_2 = __VERIFIER_nondet_uchar() [L84] input_4 = __VERIFIER_nondet_uchar() [L85] input_5 = __VERIFIER_nondet_uchar() [L86] input_6 = __VERIFIER_nondet_uchar() [L87] input_28 = __VERIFIER_nondet_uchar() [L88] input_30 = __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_47 = __VERIFIER_nondet_uchar() [L97] input_49 = __VERIFIER_nondet_uchar() [L98] input_51 = __VERIFIER_nondet_uchar() [L99] input_53 = __VERIFIER_nondet_uchar() [L100] input_55 = __VERIFIER_nondet_uchar() [L101] input_58 = __VERIFIER_nondet_uchar() [L102] input_60 = __VERIFIER_nondet_uchar() [L103] input_62 = __VERIFIER_nondet_uchar() [L104] input_64 = __VERIFIER_nondet_uchar() [L105] input_66 = __VERIFIER_nondet_uchar() [L106] input_69 = __VERIFIER_nondet_ushort() [L107] input_71 = __VERIFIER_nondet_uchar() [L110] SORT_1 var_11_arg_0 = state_8; VAL [mask_SORT_1=1, state_15=0, state_26=0, state_8=0, var_11_arg_0=0, var_12=0, var_22=1, var_7=0] [L111] EXPR var_11_arg_0 & mask_SORT_1 VAL [mask_SORT_1=1, state_15=0, state_26=0, state_8=0, var_12=0, var_22=1, var_7=0] [L111] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 [L112] SORT_10 var_11 = var_11_arg_0; [L113] SORT_10 var_13_arg_0 = var_11; [L114] SORT_10 var_13_arg_1 = var_12; [L115] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L116] SORT_1 var_14_arg_0 = var_13; [L117] SORT_1 var_14 = ~var_14_arg_0; [L118] SORT_1 var_17_arg_0 = state_15; VAL [mask_SORT_1=1, state_15=0, state_26=0, state_8=0, var_12=0, var_14=-2, var_17_arg_0=0, var_22=1, var_7=0] [L119] EXPR var_17_arg_0 & mask_SORT_1 VAL [mask_SORT_1=1, state_15=0, state_26=0, state_8=0, var_12=0, var_14=-2, var_22=1, var_7=0] [L119] var_17_arg_0 = var_17_arg_0 & mask_SORT_1 [L120] SORT_10 var_17 = var_17_arg_0; [L121] SORT_10 var_18_arg_0 = var_17; [L122] SORT_10 var_18_arg_1 = var_12; [L123] SORT_1 var_18 = var_18_arg_0 == var_18_arg_1; [L124] SORT_1 var_19_arg_0 = var_14; [L125] SORT_1 var_19_arg_1 = var_18; VAL [mask_SORT_1=1, state_15=0, state_26=0, state_8=0, var_12=0, var_19_arg_0=-2, var_19_arg_1=1, var_22=1, var_7=0] [L126] EXPR var_19_arg_0 | var_19_arg_1 VAL [mask_SORT_1=1, state_15=0, state_26=0, state_8=0, var_12=0, var_22=1, var_7=0] [L126] SORT_1 var_19 = var_19_arg_0 | var_19_arg_1; [L127] SORT_1 var_23_arg_0 = var_19; [L128] SORT_1 var_23 = ~var_23_arg_0; [L129] SORT_1 var_24_arg_0 = var_22; [L130] SORT_1 var_24_arg_1 = var_23; VAL [mask_SORT_1=1, state_15=0, state_26=0, state_8=0, var_12=0, var_22=1, var_24_arg_0=1, var_24_arg_1=-255, var_7=0] [L131] EXPR var_24_arg_0 & var_24_arg_1 VAL [mask_SORT_1=1, state_15=0, state_26=0, state_8=0, var_12=0, var_22=1, var_7=0] [L131] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L132] EXPR var_24 & mask_SORT_1 VAL [mask_SORT_1=1, state_15=0, state_26=0, state_8=0, var_12=0, var_22=1, var_7=0] [L132] var_24 = var_24 & mask_SORT_1 [L133] SORT_1 bad_25_arg_0 = var_24; [L134] CALL __VERIFIER_assert(!(bad_25_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 652 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 424 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 63 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 228 mSDtfsCounter, 63 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=4, InterpolantAutomatonStates: 17, 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, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 [2024-11-18 18:15:08,565 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/11.0.12-open/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 ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.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 53546c4dcb2cff2eaca8f311738b2b6b829a702db585862ee7ca5a0b611bb252 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 18:15:10,742 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 18:15:10,820 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-18 18:15:10,827 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 18:15:10,827 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 18:15:10,860 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 18:15:10,862 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 18:15:10,863 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 18:15:10,864 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 18:15:10,864 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 18:15:10,864 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 18:15:10,865 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 18:15:10,866 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 18:15:10,866 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 18:15:10,867 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 18:15:10,867 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 18:15:10,868 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 18:15:10,868 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 18:15:10,868 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 18:15:10,869 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 18:15:10,869 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 18:15:10,872 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-18 18:15:10,872 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-18 18:15:10,873 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 18:15:10,873 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-18 18:15:10,873 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 18:15:10,873 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 18:15:10,873 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 18:15:10,874 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 18:15:10,874 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 18:15:10,874 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 18:15:10,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 18:15:10,875 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 18:15:10,875 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 18:15:10,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 18:15:10,877 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-18 18:15:10,878 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-18 18:15:10,878 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 18:15:10,878 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 18:15:10,878 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 18:15:10,879 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 18:15:10,879 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53546c4dcb2cff2eaca8f311738b2b6b829a702db585862ee7ca5a0b611bb252 [2024-11-18 18:15:11,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 18:15:11,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 18:15:11,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 18:15:11,247 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 18:15:11,248 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 18:15:11,249 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2024-11-18 18:15:12,902 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 18:15:13,134 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 18:15:13,135 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2024-11-18 18:15:13,149 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01b4e6396/631b914d08634d939dbef50e059b9add/FLAG01081f031 [2024-11-18 18:15:13,168 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01b4e6396/631b914d08634d939dbef50e059b9add [2024-11-18 18:15:13,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 18:15:13,173 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 18:15:13,174 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 18:15:13,175 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 18:15:13,180 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 18:15:13,181 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:15:13" (1/1) ... [2024-11-18 18:15:13,182 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@633ed159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:13, skipping insertion in model container [2024-11-18 18:15:13,182 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:15:13" (1/1) ... [2024-11-18 18:15:13,211 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 18:15:13,397 WARN L250 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_p17.c[1266,1279] [2024-11-18 18:15:13,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 18:15:13,477 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 18:15:13,491 WARN L250 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_p17.c[1266,1279] [2024-11-18 18:15:13,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 18:15:13,560 INFO L204 MainTranslator]: Completed translation [2024-11-18 18:15:13,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:13 WrapperNode [2024-11-18 18:15:13,560 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 18:15:13,561 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 18:15:13,562 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 18:15:13,562 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 18:15:13,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:13" (1/1) ... [2024-11-18 18:15:13,580 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:13" (1/1) ... [2024-11-18 18:15:13,609 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 191 [2024-11-18 18:15:13,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 18:15:13,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 18:15:13,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 18:15:13,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 18:15:13,623 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:13" (1/1) ... [2024-11-18 18:15:13,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:13" (1/1) ... [2024-11-18 18:15:13,627 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:13" (1/1) ... [2024-11-18 18:15:13,654 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]. [2024-11-18 18:15:13,654 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:13" (1/1) ... [2024-11-18 18:15:13,655 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:13" (1/1) ... [2024-11-18 18:15:13,660 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:13" (1/1) ... [2024-11-18 18:15:13,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:13" (1/1) ... [2024-11-18 18:15:13,664 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:13" (1/1) ... [2024-11-18 18:15:13,665 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:13" (1/1) ... [2024-11-18 18:15:13,668 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 18:15:13,668 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 18:15:13,669 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 18:15:13,669 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 18:15:13,669 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:13" (1/1) ... [2024-11-18 18:15:13,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 18:15:13,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 18:15:13,700 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) [2024-11-18 18:15:13,702 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 [2024-11-18 18:15:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 18:15:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-18 18:15:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 18:15:13,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 18:15:13,832 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 18:15:13,835 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 18:15:14,065 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-11-18 18:15:14,065 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 18:15:14,078 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 18:15:14,079 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 18:15:14,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:15:14 BoogieIcfgContainer [2024-11-18 18:15:14,079 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 18:15:14,081 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 18:15:14,081 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 18:15:14,084 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 18:15:14,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:15:13" (1/3) ... [2024-11-18 18:15:14,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145edf14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:15:14, skipping insertion in model container [2024-11-18 18:15:14,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:15:13" (2/3) ... [2024-11-18 18:15:14,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145edf14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:15:14, skipping insertion in model container [2024-11-18 18:15:14,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:15:14" (3/3) ... [2024-11-18 18:15:14,090 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2024-11-18 18:15:14,105 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 18:15:14,106 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 18:15:14,164 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 18:15:14,169 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;@40977336, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 18:15:14,169 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 18:15:14,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) [2024-11-18 18:15:14,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-18 18:15:14,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:15:14,179 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-18 18:15:14,181 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:15:14,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:15:14,188 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-18 18:15:14,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 18:15:14,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371521610] [2024-11-18 18:15:14,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:15:14,211 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 [2024-11-18 18:15:14,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 18:15:14,213 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) [2024-11-18 18:15:14,214 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 [2024-11-18 18:15:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:15:14,361 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-18 18:15:14,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 18:15:14,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:15:14,616 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 18:15:14,616 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 18:15:14,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371521610] [2024-11-18 18:15:14,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1371521610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:15:14,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:15:14,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 18:15:14,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104123529] [2024-11-18 18:15:14,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:15:14,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 18:15:14,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 18:15:14,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 18:15:14,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 18:15:14,651 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-11-18 18:15:14,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:15:14,689 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2024-11-18 18:15:14,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 18:15:14,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2024-11-18 18:15:14,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:15:14,697 INFO L225 Difference]: With dead ends: 13 [2024-11-18 18:15:14,697 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 18:15:14,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:15:14,703 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:15:14,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:15:14,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 18:15:14,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 18:15:14,725 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) [2024-11-18 18:15:14,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 18:15:14,727 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2024-11-18 18:15:14,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:15:14,727 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 18:15:14,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-11-18 18:15:14,727 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 18:15:14,728 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 18:15:14,730 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 18:15:14,734 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-18 18:15:14,931 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 [2024-11-18 18:15:14,935 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-18 18:15:14,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 18:15:14,954 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 18:15:14,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:15:14 BoogieIcfgContainer [2024-11-18 18:15:14,972 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 18:15:14,972 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 18:15:14,973 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 18:15:14,973 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 18:15:14,974 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:15:14" (3/4) ... [2024-11-18 18:15:14,976 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 18:15:14,986 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-18 18:15:14,986 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-18 18:15:14,987 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-18 18:15:14,987 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 18:15:15,091 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 18:15:15,091 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 18:15:15,091 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 18:15:15,092 INFO L158 Benchmark]: Toolchain (without parser) took 1918.55ms. Allocated memory is still 86.0MB. Free memory was 54.7MB in the beginning and 43.3MB in the end (delta: 11.3MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2024-11-18 18:15:15,092 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 58.7MB. Free memory was 39.5MB in the beginning and 39.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 18:15:15,095 INFO L158 Benchmark]: CACSL2BoogieTranslator took 386.29ms. Allocated memory is still 86.0MB. Free memory was 54.4MB in the beginning and 62.5MB in the end (delta: -8.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-18 18:15:15,095 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.86ms. Allocated memory is still 86.0MB. Free memory was 62.1MB in the beginning and 60.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 18:15:15,096 INFO L158 Benchmark]: Boogie Preprocessor took 54.69ms. Allocated memory is still 86.0MB. Free memory was 60.1MB in the beginning and 57.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 18:15:15,096 INFO L158 Benchmark]: RCFGBuilder took 410.93ms. Allocated memory is still 86.0MB. Free memory was 57.7MB in the beginning and 42.2MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-18 18:15:15,096 INFO L158 Benchmark]: TraceAbstraction took 890.62ms. Allocated memory is still 86.0MB. Free memory was 41.6MB in the beginning and 50.0MB in the end (delta: -8.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 18:15:15,097 INFO L158 Benchmark]: Witness Printer took 118.82ms. Allocated memory is still 86.0MB. Free memory was 50.0MB in the beginning and 43.3MB in the end (delta: 6.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 18:15:15,098 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 58.7MB. Free memory was 39.5MB in the beginning and 39.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 386.29ms. Allocated memory is still 86.0MB. Free memory was 54.4MB in the beginning and 62.5MB in the end (delta: -8.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.86ms. Allocated memory is still 86.0MB. Free memory was 62.1MB in the beginning and 60.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.69ms. Allocated memory is still 86.0MB. Free memory was 60.1MB in the beginning and 57.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 410.93ms. Allocated memory is still 86.0MB. Free memory was 57.7MB in the beginning and 42.2MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 890.62ms. Allocated memory is still 86.0MB. Free memory was 41.6MB in the beginning and 50.0MB in the end (delta: -8.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 118.82ms. Allocated memory is still 86.0MB. Free memory was 50.0MB in the beginning and 43.3MB in the end (delta: 6.7MB). 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, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 0.3s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 4 NumberOfNonLiveVariables, 56 ConjunctsInSsa, 20 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: 81]: Loop Invariant Derived loop invariant: (((0 == var_12) && (0 == state_15)) && (1 == mask_SORT_1)) RESULT: Ultimate proved your program to be correct! [2024-11-18 18:15:15,127 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