./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 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/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-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 0.3.0-?-48c9605-m [2025-02-08 00:09:57,789 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 00:09:57,871 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 00:09:57,876 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 00:09:57,877 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 00:09:57,896 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 00:09:57,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 00:09:57,897 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 00:09:57,898 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 00:09:57,898 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 00:09:57,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 00:09:57,898 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 00:09:57,898 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 00:09:57,899 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 00:09:57,899 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 00:09:57,899 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 00:09:57,899 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 00:09:57,899 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 00:09:57,899 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 00:09:57,899 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 00:09:57,900 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 00:09:57,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 00:09:57,900 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 00:09:57,900 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 00:09:57,900 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 00:09:57,900 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 00:09:57,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 00:09:57,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 00:09:57,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 00:09:57,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 00:09:57,901 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 00:09:57,901 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 00:09:57,901 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 00:09:57,901 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 00:09:57,901 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 00:09:57,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 00:09:57,902 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 00:09:57,902 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 00:09:57,902 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 00:09:57,902 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 00:09:57,902 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 [2025-02-08 00:09:58,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 00:09:58,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 00:09:58,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 00:09:58,256 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 00:09:58,257 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 00:09:58,258 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2025-02-08 00:09:59,686 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a298a0acf/e78184a310a74570ada05b772e7c65dd/FLAGe3ff9139c [2025-02-08 00:09:59,973 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 00:09:59,973 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2025-02-08 00:09:59,985 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a298a0acf/e78184a310a74570ada05b772e7c65dd/FLAGe3ff9139c [2025-02-08 00:10:00,010 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a298a0acf/e78184a310a74570ada05b772e7c65dd [2025-02-08 00:10:00,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 00:10:00,014 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 00:10:00,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 00:10:00,015 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 00:10:00,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 00:10:00,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:10:00" (1/1) ... [2025-02-08 00:10:00,023 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53bfb1a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:00, skipping insertion in model container [2025-02-08 00:10:00,025 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:10:00" (1/1) ... [2025-02-08 00:10:00,050 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 00:10:00,196 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c[1266,1279] [2025-02-08 00:10:00,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 00:10:00,272 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 00:10:00,281 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c[1266,1279] [2025-02-08 00:10:00,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 00:10:00,342 INFO L204 MainTranslator]: Completed translation [2025-02-08 00:10:00,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:00 WrapperNode [2025-02-08 00:10:00,344 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 00:10:00,345 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 00:10:00,345 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 00:10:00,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 00:10:00,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:00" (1/1) ... [2025-02-08 00:10:00,362 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:00" (1/1) ... [2025-02-08 00:10:00,423 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 262 [2025-02-08 00:10:00,424 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 00:10:00,426 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 00:10:00,426 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 00:10:00,426 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 00:10:00,436 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:00" (1/1) ... [2025-02-08 00:10:00,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:00" (1/1) ... [2025-02-08 00:10:00,447 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:00" (1/1) ... [2025-02-08 00:10:00,470 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]. [2025-02-08 00:10:00,471 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:00" (1/1) ... [2025-02-08 00:10:00,472 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:00" (1/1) ... [2025-02-08 00:10:00,484 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:00" (1/1) ... [2025-02-08 00:10:00,486 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:00" (1/1) ... [2025-02-08 00:10:00,488 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:00" (1/1) ... [2025-02-08 00:10:00,490 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:00" (1/1) ... [2025-02-08 00:10:00,494 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 00:10:00,497 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 00:10:00,497 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 00:10:00,497 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 00:10:00,499 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:00" (1/1) ... [2025-02-08 00:10:00,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 00:10:00,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 00:10:00,545 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 00:10:00,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 00:10:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 00:10:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 00:10:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 00:10:00,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 00:10:00,684 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 00:10:00,686 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 00:10:01,188 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2025-02-08 00:10:01,188 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 00:10:01,235 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 00:10:01,236 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 00:10:01,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:10:01 BoogieIcfgContainer [2025-02-08 00:10:01,236 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 00:10:01,240 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 00:10:01,241 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 00:10:01,245 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 00:10:01,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 12:10:00" (1/3) ... [2025-02-08 00:10:01,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f6c72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:10:01, skipping insertion in model container [2025-02-08 00:10:01,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:00" (2/3) ... [2025-02-08 00:10:01,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f6c72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:10:01, skipping insertion in model container [2025-02-08 00:10:01,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:10:01" (3/3) ... [2025-02-08 00:10:01,249 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2025-02-08 00:10:01,264 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 00:10:01,267 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c that has 1 procedures, 44 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-08 00:10:01,330 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 00:10:01,343 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;@2fe1ba39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 00:10:01,345 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 00:10:01,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 42 states have (on average 1.5) internal successors, (63), 43 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) [2025-02-08 00:10:01,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-02-08 00:10:01,355 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 00:10:01,355 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 00:10:01,357 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 00:10:01,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 00:10:01,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1153006408, now seen corresponding path program 1 times [2025-02-08 00:10:01,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 00:10:01,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970108133] [2025-02-08 00:10:01,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 00:10:01,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 00:10:01,468 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 00:10:01,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 00:10:01,541 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 00:10:01,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 00:10:02,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 00:10:02,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 00:10:02,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970108133] [2025-02-08 00:10:02,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970108133] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 00:10:02,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 00:10:02,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 00:10:02,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629493541] [2025-02-08 00:10:02,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 00:10:02,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 00:10:02,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 00:10:02,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 00:10:02,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 00:10:02,061 INFO L87 Difference]: Start difference. First operand has 44 states, 42 states have (on average 1.5) internal successors, (63), 43 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) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2025-02-08 00:10:02,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 00:10:02,162 INFO L93 Difference]: Finished difference Result 75 states and 109 transitions. [2025-02-08 00:10:02,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 00:10:02,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2025-02-08 00:10:02,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 00:10:02,173 INFO L225 Difference]: With dead ends: 75 [2025-02-08 00:10:02,173 INFO L226 Difference]: Without dead ends: 44 [2025-02-08 00:10:02,177 INFO L434 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 [2025-02-08 00:10:02,180 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 00:10:02,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 142 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 00:10:02,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2025-02-08 00:10:02,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2025-02-08 00:10:02,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.441860465116279) internal successors, (62), 43 states have internal predecessors, (62), 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) [2025-02-08 00:10:02,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 62 transitions. [2025-02-08 00:10:02,224 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 62 transitions. Word has length 20 [2025-02-08 00:10:02,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 00:10:02,224 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 62 transitions. [2025-02-08 00:10:02,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2025-02-08 00:10:02,225 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 62 transitions. [2025-02-08 00:10:02,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-02-08 00:10:02,227 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 00:10:02,228 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 00:10:02,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 00:10:02,228 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 00:10:02,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 00:10:02,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1388139430, now seen corresponding path program 1 times [2025-02-08 00:10:02,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 00:10:02,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971771745] [2025-02-08 00:10:02,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 00:10:02,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 00:10:02,251 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 00:10:02,276 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 00:10:02,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 00:10:02,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 00:10:02,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 00:10:02,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 00:10:02,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971771745] [2025-02-08 00:10:02,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971771745] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 00:10:02,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 00:10:02,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 00:10:02,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908369979] [2025-02-08 00:10:02,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 00:10:02,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 00:10:02,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 00:10:02,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 00:10:02,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 00:10:02,398 INFO L87 Difference]: Start difference. First operand 44 states and 62 transitions. 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) [2025-02-08 00:10:02,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 00:10:02,471 INFO L93 Difference]: Finished difference Result 77 states and 108 transitions. [2025-02-08 00:10:02,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 00:10:02,472 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 [2025-02-08 00:10:02,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 00:10:02,473 INFO L225 Difference]: With dead ends: 77 [2025-02-08 00:10:02,473 INFO L226 Difference]: Without dead ends: 46 [2025-02-08 00:10:02,474 INFO L434 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 [2025-02-08 00:10:02,475 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 00:10:02,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 00:10:02,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2025-02-08 00:10:02,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2025-02-08 00:10:02,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 45 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) [2025-02-08 00:10:02,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 64 transitions. [2025-02-08 00:10:02,480 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 64 transitions. Word has length 21 [2025-02-08 00:10:02,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 00:10:02,480 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 64 transitions. [2025-02-08 00:10:02,480 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) [2025-02-08 00:10:02,481 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 64 transitions. [2025-02-08 00:10:02,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-02-08 00:10:02,481 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 00:10:02,481 INFO L218 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] [2025-02-08 00:10:02,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 00:10:02,482 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 00:10:02,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 00:10:02,485 INFO L85 PathProgramCache]: Analyzing trace with hash 2014158595, now seen corresponding path program 1 times [2025-02-08 00:10:02,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 00:10:02,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343260566] [2025-02-08 00:10:02,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 00:10:02,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 00:10:02,501 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 00:10:02,538 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 00:10:02,542 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 00:10:02,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 00:10:02,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 00:10:02,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 00:10:02,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343260566] [2025-02-08 00:10:02,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343260566] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 00:10:02,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 00:10:02,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 00:10:02,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729631455] [2025-02-08 00:10:02,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 00:10:02,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 00:10:02,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 00:10:02,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 00:10:02,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 00:10:02,910 INFO L87 Difference]: Start difference. First operand 46 states and 64 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) [2025-02-08 00:10:02,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 00:10:02,986 INFO L93 Difference]: Finished difference Result 79 states and 109 transitions. [2025-02-08 00:10:02,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 00:10:02,991 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 [2025-02-08 00:10:02,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 00:10:02,992 INFO L225 Difference]: With dead ends: 79 [2025-02-08 00:10:02,992 INFO L226 Difference]: Without dead ends: 46 [2025-02-08 00:10:02,992 INFO L434 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 [2025-02-08 00:10:02,993 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 6 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 00:10:02,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 129 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 00:10:02,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2025-02-08 00:10:02,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2025-02-08 00:10:03,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.4) internal successors, (63), 45 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) [2025-02-08 00:10:03,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 63 transitions. [2025-02-08 00:10:03,002 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 63 transitions. Word has length 22 [2025-02-08 00:10:03,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 00:10:03,004 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 63 transitions. [2025-02-08 00:10:03,004 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) [2025-02-08 00:10:03,004 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 63 transitions. [2025-02-08 00:10:03,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-02-08 00:10:03,005 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 00:10:03,005 INFO L218 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] [2025-02-08 00:10:03,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 00:10:03,007 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 00:10:03,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 00:10:03,007 INFO L85 PathProgramCache]: Analyzing trace with hash -97230485, now seen corresponding path program 1 times [2025-02-08 00:10:03,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 00:10:03,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810954885] [2025-02-08 00:10:03,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 00:10:03,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 00:10:03,031 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 00:10:03,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 00:10:03,076 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 00:10:03,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 00:10:03,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 00:10:03,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 00:10:03,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810954885] [2025-02-08 00:10:03,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810954885] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 00:10:03,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 00:10:03,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 00:10:03,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940743696] [2025-02-08 00:10:03,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 00:10:03,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 00:10:03,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 00:10:03,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 00:10:03,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 00:10:03,483 INFO L87 Difference]: Start difference. First operand 46 states and 63 transitions. Second operand has 5 states, 5 states have (on average 4.6) 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) [2025-02-08 00:10:03,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 00:10:03,578 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2025-02-08 00:10:03,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 00:10:03,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) 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 [2025-02-08 00:10:03,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 00:10:03,579 INFO L225 Difference]: With dead ends: 83 [2025-02-08 00:10:03,580 INFO L226 Difference]: Without dead ends: 50 [2025-02-08 00:10:03,580 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 00:10:03,581 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 53 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 00:10:03,581 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 132 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 00:10:03,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2025-02-08 00:10:03,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2025-02-08 00:10:03,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.375) internal successors, (66), 48 states have internal predecessors, (66), 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) [2025-02-08 00:10:03,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 66 transitions. [2025-02-08 00:10:03,588 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 66 transitions. Word has length 23 [2025-02-08 00:10:03,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 00:10:03,591 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 66 transitions. [2025-02-08 00:10:03,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) 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) [2025-02-08 00:10:03,592 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 66 transitions. [2025-02-08 00:10:03,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-02-08 00:10:03,592 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 00:10:03,593 INFO L218 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] [2025-02-08 00:10:03,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 00:10:03,593 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 00:10:03,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 00:10:03,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1686993226, now seen corresponding path program 1 times [2025-02-08 00:10:03,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 00:10:03,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986671856] [2025-02-08 00:10:03,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 00:10:03,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 00:10:03,612 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 00:10:03,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 00:10:03,649 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 00:10:03,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 00:10:03,649 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 00:10:03,658 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 00:10:03,683 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 00:10:03,683 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 00:10:03,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 00:10:03,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 00:10:03,720 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 00:10:03,721 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-08 00:10:03,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 00:10:03,730 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-02-08 00:10:03,758 WARN L310 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2025-02-08 00:10:03,771 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 00:10:03,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 12:10:03 BoogieIcfgContainer [2025-02-08 00:10:03,777 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 00:10:03,778 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 00:10:03,778 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 00:10:03,779 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 00:10:03,779 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:10:01" (3/4) ... [2025-02-08 00:10:03,782 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-08 00:10:03,782 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 00:10:03,784 INFO L158 Benchmark]: Toolchain (without parser) took 3769.52ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 38.1MB in the end (delta: 75.5MB). Peak memory consumption was 72.8MB. Max. memory is 16.1GB. [2025-02-08 00:10:03,784 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 00:10:03,785 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.86ms. Allocated memory is still 142.6MB. Free memory was 113.0MB in the beginning and 99.9MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 00:10:03,785 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.50ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 95.4MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 00:10:03,785 INFO L158 Benchmark]: Boogie Preprocessor took 68.28ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 92.8MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 00:10:03,785 INFO L158 Benchmark]: IcfgBuilder took 739.35ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 65.5MB in the end (delta: 27.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-08 00:10:03,785 INFO L158 Benchmark]: TraceAbstraction took 2536.85ms. Allocated memory is still 142.6MB. Free memory was 65.1MB in the beginning and 38.1MB in the end (delta: 27.0MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2025-02-08 00:10:03,786 INFO L158 Benchmark]: Witness Printer took 4.44ms. Allocated memory is still 142.6MB. Free memory was 38.1MB in the beginning and 38.1MB in the end (delta: 24.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 00:10:03,788 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 328.86ms. Allocated memory is still 142.6MB. Free memory was 113.0MB in the beginning and 99.9MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.50ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 95.4MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 68.28ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 92.8MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 739.35ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 65.5MB in the end (delta: 27.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2536.85ms. Allocated memory is still 142.6MB. Free memory was 65.1MB in the beginning and 38.1MB in the end (delta: 27.0MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * Witness Printer took 4.44ms. Allocated memory is still 142.6MB. Free memory was 38.1MB in the beginning and 38.1MB in the end (delta: 24.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of 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, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 542 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 352 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 160 IncrementalHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 190 mSDtfsCounter, 160 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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, 1.4s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 182 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-08 00:10:03,810 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/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-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 0.3.0-?-48c9605-m [2025-02-08 00:10:06,407 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 00:10:06,560 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2025-02-08 00:10:06,571 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 00:10:06,571 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 00:10:06,606 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 00:10:06,607 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 00:10:06,607 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 00:10:06,607 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 00:10:06,608 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 00:10:06,608 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 00:10:06,608 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 00:10:06,608 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 00:10:06,608 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 00:10:06,608 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 00:10:06,608 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 00:10:06,610 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 00:10:06,610 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 00:10:06,611 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 00:10:06,611 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 00:10:06,611 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 00:10:06,611 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 00:10:06,611 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 00:10:06,611 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 00:10:06,611 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 00:10:06,611 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 00:10:06,611 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 00:10:06,611 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 00:10:06,611 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 00:10:06,611 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 00:10:06,611 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 00:10:06,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 00:10:06,612 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 00:10:06,612 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 00:10:06,612 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 00:10:06,612 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 00:10:06,612 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 00:10:06,612 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 00:10:06,612 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 00:10:06,612 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 00:10:06,612 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 00:10:06,612 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 00:10:06,612 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 [2025-02-08 00:10:06,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 00:10:06,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 00:10:06,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 00:10:06,977 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 00:10:06,977 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 00:10:06,978 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2025-02-08 00:10:08,545 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/35dc2248c/40dad62a1c7b40528cbc5e2bd3081ce3/FLAG53ccddfd5 [2025-02-08 00:10:08,808 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 00:10:08,809 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2025-02-08 00:10:08,822 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/35dc2248c/40dad62a1c7b40528cbc5e2bd3081ce3/FLAG53ccddfd5 [2025-02-08 00:10:09,133 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/35dc2248c/40dad62a1c7b40528cbc5e2bd3081ce3 [2025-02-08 00:10:09,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 00:10:09,136 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 00:10:09,138 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 00:10:09,138 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 00:10:09,142 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 00:10:09,143 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:10:09" (1/1) ... [2025-02-08 00:10:09,144 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a6721e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:09, skipping insertion in model container [2025-02-08 00:10:09,144 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:10:09" (1/1) ... [2025-02-08 00:10:09,162 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 00:10:09,309 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c[1266,1279] [2025-02-08 00:10:09,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 00:10:09,380 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 00:10:09,390 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c[1266,1279] [2025-02-08 00:10:09,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 00:10:09,432 INFO L204 MainTranslator]: Completed translation [2025-02-08 00:10:09,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:09 WrapperNode [2025-02-08 00:10:09,434 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 00:10:09,435 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 00:10:09,435 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 00:10:09,435 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 00:10:09,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:09" (1/1) ... [2025-02-08 00:10:09,452 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:09" (1/1) ... [2025-02-08 00:10:09,480 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 190 [2025-02-08 00:10:09,484 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 00:10:09,485 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 00:10:09,485 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 00:10:09,485 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 00:10:09,494 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:09" (1/1) ... [2025-02-08 00:10:09,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:09" (1/1) ... [2025-02-08 00:10:09,502 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:09" (1/1) ... [2025-02-08 00:10:09,533 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]. [2025-02-08 00:10:09,534 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:09" (1/1) ... [2025-02-08 00:10:09,534 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:09" (1/1) ... [2025-02-08 00:10:09,540 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:09" (1/1) ... [2025-02-08 00:10:09,541 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:09" (1/1) ... [2025-02-08 00:10:09,542 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:09" (1/1) ... [2025-02-08 00:10:09,548 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:09" (1/1) ... [2025-02-08 00:10:09,555 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 00:10:09,556 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 00:10:09,556 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 00:10:09,556 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 00:10:09,557 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:09" (1/1) ... [2025-02-08 00:10:09,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 00:10:09,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 00:10:09,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 00:10:09,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 00:10:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 00:10:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 00:10:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 00:10:09,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 00:10:09,741 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 00:10:09,743 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 00:10:09,945 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2025-02-08 00:10:09,945 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 00:10:09,955 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 00:10:09,956 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 00:10:09,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:10:09 BoogieIcfgContainer [2025-02-08 00:10:09,957 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 00:10:09,960 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 00:10:09,960 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 00:10:09,965 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 00:10:09,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 12:10:09" (1/3) ... [2025-02-08 00:10:09,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de5ea5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:10:09, skipping insertion in model container [2025-02-08 00:10:09,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:10:09" (2/3) ... [2025-02-08 00:10:09,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de5ea5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:10:09, skipping insertion in model container [2025-02-08 00:10:09,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:10:09" (3/3) ... [2025-02-08 00:10:09,968 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2025-02-08 00:10:09,982 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 00:10:09,984 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c that has 1 procedures, 8 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-08 00:10:10,027 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 00:10:10,038 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;@34347244, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 00:10:10,039 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 00:10:10,043 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 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) [2025-02-08 00:10:10,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-08 00:10:10,048 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 00:10:10,049 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-08 00:10:10,049 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 00:10:10,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 00:10:10,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1137951, now seen corresponding path program 1 times [2025-02-08 00:10:10,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 00:10:10,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [717321974] [2025-02-08 00:10:10,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 00:10:10,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 00:10:10,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 00:10:10,069 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 00:10:10,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 00:10:10,189 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 00:10:10,218 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 00:10:10,219 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 00:10:10,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 00:10:10,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-02-08 00:10:10,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 00:10:10,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 00:10:10,473 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 00:10:10,474 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 00:10:10,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717321974] [2025-02-08 00:10:10,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717321974] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 00:10:10,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 00:10:10,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 00:10:10,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300539219] [2025-02-08 00:10:10,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 00:10:10,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 00:10:10,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 00:10:10,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 00:10:10,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 00:10:10,498 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 00:10:10,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 00:10:10,540 INFO L93 Difference]: Finished difference Result 11 states and 14 transitions. [2025-02-08 00:10:10,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 00:10:10,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2025-02-08 00:10:10,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 00:10:10,549 INFO L225 Difference]: With dead ends: 11 [2025-02-08 00:10:10,552 INFO L226 Difference]: Without dead ends: 0 [2025-02-08 00:10:10,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 00:10:10,558 INFO L435 NwaCegarLoop]: 1 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2 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 [2025-02-08 00:10:10,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 00:10:10,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-08 00:10:10,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-08 00:10:10,581 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) [2025-02-08 00:10:10,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-08 00:10:10,586 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2025-02-08 00:10:10,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 00:10:10,586 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 00:10:10,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 00:10:10,586 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-08 00:10:10,587 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-08 00:10:10,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-08 00:10:10,601 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 00:10:10,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 00:10:10,795 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 00:10:10,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-08 00:10:10,815 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 00:10:10,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 12:10:10 BoogieIcfgContainer [2025-02-08 00:10:10,826 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 00:10:10,827 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 00:10:10,827 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 00:10:10,827 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 00:10:10,829 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:10:09" (3/4) ... [2025-02-08 00:10:10,831 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 00:10:10,844 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-08 00:10:10,844 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 00:10:10,844 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 00:10:10,844 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 00:10:10,941 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 00:10:10,942 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 00:10:10,942 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 00:10:10,944 INFO L158 Benchmark]: Toolchain (without parser) took 1806.90ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 58.2MB in the end (delta: 34.2MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2025-02-08 00:10:10,944 INFO L158 Benchmark]: CDTParser took 3.32ms. Allocated memory is still 83.9MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 00:10:10,945 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.29ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 78.8MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 00:10:10,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.09ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 76.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 00:10:10,946 INFO L158 Benchmark]: Boogie Preprocessor took 70.08ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 74.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 00:10:10,946 INFO L158 Benchmark]: IcfgBuilder took 401.26ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 59.5MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 00:10:10,947 INFO L158 Benchmark]: TraceAbstraction took 866.55ms. Allocated memory is still 117.4MB. Free memory was 58.9MB in the beginning and 65.0MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 00:10:10,947 INFO L158 Benchmark]: Witness Printer took 115.36ms. Allocated memory is still 117.4MB. Free memory was 65.0MB in the beginning and 58.2MB in the end (delta: 6.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 00:10:10,948 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.32ms. Allocated memory is still 83.9MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.29ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 78.8MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.09ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 76.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 70.08ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 74.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 401.26ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 59.5MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 866.55ms. Allocated memory is still 117.4MB. Free memory was 58.9MB in the beginning and 65.0MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 115.36ms. Allocated memory is still 117.4MB. Free memory was 65.0MB in the beginning and 58.2MB in the end (delta: 6.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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, 8 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, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 1 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 81]: Location Invariant Derived location invariant: (((0 == var_12) && (0 == state_15)) && (1 == mask_SORT_1)) RESULT: Ultimate proved your program to be correct! [2025-02-08 00:10:10,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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