./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bc19904b68b3c373243042dce59996dc4b666d99713ce0cfa66e5db1006d1674 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 17:36:42,217 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 17:36:42,272 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-03 17:36:42,277 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 17:36:42,278 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 17:36:42,296 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 17:36:42,297 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 17:36:42,297 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 17:36:42,297 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 17:36:42,298 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 17:36:42,298 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 17:36:42,298 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 17:36:42,299 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 17:36:42,299 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 17:36:42,299 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 17:36:42,299 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 17:36:42,300 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 17:36:42,300 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 17:36:42,300 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 17:36:42,300 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 17:36:42,300 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 17:36:42,300 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 17:36:42,300 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 17:36:42,300 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 17:36:42,300 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 17:36:42,300 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 17:36:42,300 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 17:36:42,300 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 17:36:42,301 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 17:36:42,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 17:36:42,301 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 17:36:42,301 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 17:36:42,301 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 17:36:42,301 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 17:36:42,301 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 17:36:42,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 17:36:42,302 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 17:36:42,302 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 17:36:42,302 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 17:36:42,302 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 17:36:42,302 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/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 -> bc19904b68b3c373243042dce59996dc4b666d99713ce0cfa66e5db1006d1674 [2025-03-03 17:36:42,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 17:36:42,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 17:36:42,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 17:36:42,517 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 17:36:42,518 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 17:36:42,519 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c [2025-03-03 17:36:43,681 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c956a9d72/f24db091801241f9a9494b959abef428/FLAGc536e0b9d [2025-03-03 17:36:43,939 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 17:36:43,939 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c [2025-03-03 17:36:43,948 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c956a9d72/f24db091801241f9a9494b959abef428/FLAGc536e0b9d [2025-03-03 17:36:44,263 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c956a9d72/f24db091801241f9a9494b959abef428 [2025-03-03 17:36:44,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 17:36:44,266 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 17:36:44,267 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 17:36:44,267 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 17:36:44,270 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 17:36:44,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:36:44" (1/1) ... [2025-03-03 17:36:44,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12a01903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:44, skipping insertion in model container [2025-03-03 17:36:44,271 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:36:44" (1/1) ... [2025-03-03 17:36:44,281 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 17:36:44,364 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c[1245,1258] [2025-03-03 17:36:44,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 17:36:44,394 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 17:36:44,404 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c[1245,1258] [2025-03-03 17:36:44,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 17:36:44,428 INFO L204 MainTranslator]: Completed translation [2025-03-03 17:36:44,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:44 WrapperNode [2025-03-03 17:36:44,429 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 17:36:44,430 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 17:36:44,430 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 17:36:44,430 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 17:36:44,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:44" (1/1) ... [2025-03-03 17:36:44,442 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:44" (1/1) ... [2025-03-03 17:36:44,476 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 174 [2025-03-03 17:36:44,479 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 17:36:44,479 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 17:36:44,479 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 17:36:44,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 17:36:44,486 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:44" (1/1) ... [2025-03-03 17:36:44,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:44" (1/1) ... [2025-03-03 17:36:44,493 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:44" (1/1) ... [2025-03-03 17:36:44,514 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2025-03-03 17:36:44,515 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:44" (1/1) ... [2025-03-03 17:36:44,516 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:44" (1/1) ... [2025-03-03 17:36:44,522 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:44" (1/1) ... [2025-03-03 17:36:44,523 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:44" (1/1) ... [2025-03-03 17:36:44,524 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:44" (1/1) ... [2025-03-03 17:36:44,525 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:44" (1/1) ... [2025-03-03 17:36:44,529 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 17:36:44,530 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 17:36:44,530 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 17:36:44,530 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 17:36:44,531 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:44" (1/1) ... [2025-03-03 17:36:44,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 17:36:44,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 17:36:44,555 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-03 17:36:44,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-03 17:36:44,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 17:36:44,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 17:36:44,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-03 17:36:44,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 17:36:44,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 17:36:44,629 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 17:36:44,630 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 17:36:44,928 INFO L? ?]: Removed 72 outVars from TransFormulas that were not future-live. [2025-03-03 17:36:44,928 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 17:36:44,947 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 17:36:44,947 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 17:36:44,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 05:36:44 BoogieIcfgContainer [2025-03-03 17:36:44,947 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 17:36:44,951 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 17:36:44,951 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 17:36:44,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 17:36:44,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 05:36:44" (1/3) ... [2025-03-03 17:36:44,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e9176fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:36:44, skipping insertion in model container [2025-03-03 17:36:44,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:44" (2/3) ... [2025-03-03 17:36:44,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e9176fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:36:44, skipping insertion in model container [2025-03-03 17:36:44,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 05:36:44" (3/3) ... [2025-03-03 17:36:44,956 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b07.c [2025-03-03 17:36:44,969 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 17:36:44,970 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.h_b07.c that has 1 procedures, 38 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-03 17:36:45,013 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 17:36:45,024 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;@255322ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 17:36:45,026 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 17:36:45,028 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 37 states have internal predecessors, (53), 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) [2025-03-03 17:36:45,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-03 17:36:45,034 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:36:45,034 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:36:45,035 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:36:45,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:36:45,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1941016968, now seen corresponding path program 1 times [2025-03-03 17:36:45,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:36:45,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842592666] [2025-03-03 17:36:45,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:36:45,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:36:45,111 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-03 17:36:45,154 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-03 17:36:45,154 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:36:45,154 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:36:45,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:36:45,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:36:45,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842592666] [2025-03-03 17:36:45,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842592666] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:36:45,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:36:45,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:36:45,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197211111] [2025-03-03 17:36:45,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:36:45,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:36:45,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:36:45,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:36:45,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:36:45,432 INFO L87 Difference]: Start difference. First operand has 38 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 37 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:36:45,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:36:45,474 INFO L93 Difference]: Finished difference Result 65 states and 93 transitions. [2025-03-03 17:36:45,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:36:45,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2025-03-03 17:36:45,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:36:45,480 INFO L225 Difference]: With dead ends: 65 [2025-03-03 17:36:45,480 INFO L226 Difference]: Without dead ends: 37 [2025-03-03 17:36:45,482 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 [2025-03-03 17:36:45,484 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 17:36:45,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 17:36:45,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2025-03-03 17:36:45,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2025-03-03 17:36:45,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 36 states have internal predecessors, (51), 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) [2025-03-03 17:36:45,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2025-03-03 17:36:45,504 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 17 [2025-03-03 17:36:45,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:36:45,504 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2025-03-03 17:36:45,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:36:45,504 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2025-03-03 17:36:45,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-03 17:36:45,504 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:36:45,505 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:36:45,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 17:36:45,505 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:36:45,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:36:45,505 INFO L85 PathProgramCache]: Analyzing trace with hash 46663016, now seen corresponding path program 1 times [2025-03-03 17:36:45,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:36:45,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537578227] [2025-03-03 17:36:45,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:36:45,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:36:45,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-03 17:36:45,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-03 17:36:45,534 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:36:45,534 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:36:45,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:36:45,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:36:45,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537578227] [2025-03-03 17:36:45,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537578227] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:36:45,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:36:45,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:36:45,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334370637] [2025-03-03 17:36:45,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:36:45,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:36:45,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:36:45,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:36:45,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:36:45,635 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:36:45,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:36:45,678 INFO L93 Difference]: Finished difference Result 66 states and 91 transitions. [2025-03-03 17:36:45,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:36:45,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2025-03-03 17:36:45,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:36:45,679 INFO L225 Difference]: With dead ends: 66 [2025-03-03 17:36:45,679 INFO L226 Difference]: Without dead ends: 39 [2025-03-03 17:36:45,680 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 [2025-03-03 17:36:45,681 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 17:36:45,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 17:36:45,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2025-03-03 17:36:45,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2025-03-03 17:36:45,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.394736842105263) internal successors, (53), 38 states have internal predecessors, (53), 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) [2025-03-03 17:36:45,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2025-03-03 17:36:45,685 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 18 [2025-03-03 17:36:45,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:36:45,685 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2025-03-03 17:36:45,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:36:45,685 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2025-03-03 17:36:45,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-03-03 17:36:45,686 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:36:45,686 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 17:36:45,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 17:36:45,686 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:36:45,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:36:45,686 INFO L85 PathProgramCache]: Analyzing trace with hash -916904573, now seen corresponding path program 1 times [2025-03-03 17:36:45,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:36:45,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179258081] [2025-03-03 17:36:45,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:36:45,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:36:45,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-03 17:36:45,709 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-03 17:36:45,710 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:36:45,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:36:45,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:36:45,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 17:36:45,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179258081] [2025-03-03 17:36:45,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179258081] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:36:45,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:36:45,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:36:45,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782913838] [2025-03-03 17:36:45,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:36:45,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:36:45,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 17:36:45,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:36:45,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:36:45,854 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2025-03-03 17:36:45,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:36:45,898 INFO L93 Difference]: Finished difference Result 66 states and 90 transitions. [2025-03-03 17:36:45,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:36:45,899 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2025-03-03 17:36:45,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:36:45,900 INFO L225 Difference]: With dead ends: 66 [2025-03-03 17:36:45,900 INFO L226 Difference]: Without dead ends: 37 [2025-03-03 17:36:45,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:36:45,900 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 38 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 17:36:45,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 71 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 17:36:45,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2025-03-03 17:36:45,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2025-03-03 17:36:45,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 36 states have internal predecessors, (49), 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) [2025-03-03 17:36:45,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 49 transitions. [2025-03-03 17:36:45,905 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 49 transitions. Word has length 19 [2025-03-03 17:36:45,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:36:45,905 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 49 transitions. [2025-03-03 17:36:45,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2025-03-03 17:36:45,906 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2025-03-03 17:36:45,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-03-03 17:36:45,906 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:36:45,907 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] [2025-03-03 17:36:45,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-03 17:36:45,907 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:36:45,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:36:45,907 INFO L85 PathProgramCache]: Analyzing trace with hash -547980624, now seen corresponding path program 1 times [2025-03-03 17:36:45,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 17:36:45,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373624747] [2025-03-03 17:36:45,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:36:45,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 17:36:45,919 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-03 17:36:45,936 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-03 17:36:45,937 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:36:45,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 17:36:45,937 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-03 17:36:45,941 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-03 17:36:45,954 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-03 17:36:45,957 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:36:45,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 17:36:45,973 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-03 17:36:45,973 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-03 17:36:45,974 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-03 17:36:45,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-03 17:36:45,977 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-03 17:36:45,992 WARN L310 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2025-03-03 17:36:45,998 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 17:36:46,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 05:36:46 BoogieIcfgContainer [2025-03-03 17:36:46,001 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 17:36:46,002 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 17:36:46,002 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 17:36:46,002 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 17:36:46,002 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 05:36:44" (3/4) ... [2025-03-03 17:36:46,004 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-03 17:36:46,004 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 17:36:46,005 INFO L158 Benchmark]: Toolchain (without parser) took 1738.71ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 90.4MB in the end (delta: 15.3MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2025-03-03 17:36:46,005 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 17:36:46,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 162.40ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 92.8MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 17:36:46,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.22ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 89.6MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 17:36:46,005 INFO L158 Benchmark]: Boogie Preprocessor took 49.79ms. Allocated memory is still 142.6MB. Free memory was 89.6MB in the beginning and 87.4MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 17:36:46,005 INFO L158 Benchmark]: IcfgBuilder took 417.50ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 63.4MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-03 17:36:46,005 INFO L158 Benchmark]: TraceAbstraction took 1050.36ms. Allocated memory is still 142.6MB. Free memory was 62.3MB in the beginning and 90.4MB in the end (delta: -28.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 17:36:46,006 INFO L158 Benchmark]: Witness Printer took 2.58ms. Allocated memory is still 142.6MB. Free memory was 90.4MB in the beginning and 90.4MB in the end (delta: 37.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 17:36:46,006 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 162.40ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 92.8MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.22ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 89.6MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.79ms. Allocated memory is still 142.6MB. Free memory was 89.6MB in the beginning and 87.4MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 417.50ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 63.4MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1050.36ms. Allocated memory is still 142.6MB. Free memory was 62.3MB in the beginning and 90.4MB in the end (delta: -28.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.58ms. Allocated memory is still 142.6MB. Free memory was 90.4MB in the beginning and 90.4MB in the end (delta: 37.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 85. 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_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 8); [L30] const SORT_4 msb_SORT_4 = (SORT_4)1 << (8 - 1); [L32] const SORT_8 mask_SORT_8 = (SORT_8)-1 >> (sizeof(SORT_8) * 8 - 32); [L33] const SORT_8 msb_SORT_8 = (SORT_8)1 << (32 - 1); [L35] const SORT_22 mask_SORT_22 = (SORT_22)-1 >> (sizeof(SORT_22) * 8 - 4); [L36] const SORT_22 msb_SORT_22 = (SORT_22)1 << (4 - 1); [L38] const SORT_29 mask_SORT_29 = (SORT_29)-1 >> (sizeof(SORT_29) * 8 - 7); [L39] const SORT_29 msb_SORT_29 = (SORT_29)1 << (7 - 1); [L41] const SORT_4 var_5 = 0; [L42] const SORT_8 var_10 = 148; [L43] const SORT_1 var_14 = 1; [L44] const SORT_1 var_26 = 0; [L46] SORT_1 input_2; [L47] SORT_1 input_3; [L48] SORT_4 input_18; [L49] SORT_4 input_20; [L50] SORT_22 input_23; [L51] SORT_29 input_30; [L52] SORT_29 input_32; [L53] SORT_1 input_36; [L55] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 VAL [mask_SORT_1=1, mask_SORT_4=255, var_10=148, var_14=1, var_26=0, var_5=0] [L55] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L56] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=255, var_10=148, var_14=1, var_26=0, var_5=0] [L56] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L58] SORT_4 init_7_arg_1 = var_5; [L59] state_6 = init_7_arg_1 [L60] SORT_1 init_28_arg_1 = var_26; [L61] state_27 = init_28_arg_1 VAL [mask_SORT_1=1, mask_SORT_4=255, state_27=0, state_6=0, var_10=148, var_14=1, var_26=0] [L64] input_2 = __VERIFIER_nondet_uchar() [L65] EXPR input_2 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=255, state_27=0, state_6=0, var_10=148, var_14=1, var_26=0] [L65] input_2 = input_2 & mask_SORT_1 [L66] input_3 = __VERIFIER_nondet_uchar() [L67] input_18 = __VERIFIER_nondet_uchar() [L68] input_20 = __VERIFIER_nondet_uchar() [L69] input_23 = __VERIFIER_nondet_uchar() [L70] input_30 = __VERIFIER_nondet_uchar() [L71] input_32 = __VERIFIER_nondet_uchar() [L72] input_36 = __VERIFIER_nondet_uchar() [L75] SORT_4 var_9_arg_0 = state_6; VAL [input_2=0, mask_SORT_1=1, mask_SORT_4=255, state_27=0, state_6=0, var_10=148, var_14=1, var_26=0, var_9_arg_0=0] [L76] EXPR var_9_arg_0 & mask_SORT_4 VAL [input_2=0, mask_SORT_1=1, mask_SORT_4=255, state_27=0, state_6=0, var_10=148, var_14=1, var_26=0] [L76] var_9_arg_0 = var_9_arg_0 & mask_SORT_4 [L77] SORT_8 var_9 = var_9_arg_0; [L78] SORT_8 var_11_arg_0 = var_9; [L79] SORT_8 var_11_arg_1 = var_10; [L80] SORT_1 var_11 = var_11_arg_0 != var_11_arg_1; [L81] SORT_1 var_15_arg_0 = var_11; [L82] SORT_1 var_15 = ~var_15_arg_0; [L83] SORT_1 var_16_arg_0 = var_14; [L84] SORT_1 var_16_arg_1 = var_15; VAL [input_2=0, mask_SORT_1=1, mask_SORT_4=255, state_27=0, state_6=0, var_10=148, var_14=1, var_16_arg_0=1, var_16_arg_1=-2, var_26=0] [L85] EXPR var_16_arg_0 & var_16_arg_1 VAL [input_2=0, mask_SORT_1=1, mask_SORT_4=255, state_27=0, state_6=0, var_10=148, var_14=1, var_26=0] [L85] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L86] EXPR var_16 & mask_SORT_1 VAL [input_2=0, mask_SORT_1=1, mask_SORT_4=255, state_27=0, state_6=0, var_10=148, var_14=1, var_26=0] [L86] var_16 = var_16 & mask_SORT_1 [L87] SORT_1 bad_17_arg_0 = var_16; [L88] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 298 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 182 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 86 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 116 mSDtfsCounter, 86 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=2, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 94 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-03 17:36:46,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bc19904b68b3c373243042dce59996dc4b666d99713ce0cfa66e5db1006d1674 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 17:36:47,842 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 17:36:47,912 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2025-03-03 17:36:47,916 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 17:36:47,916 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 17:36:47,942 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 17:36:47,942 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 17:36:47,942 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 17:36:47,943 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 17:36:47,944 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 17:36:47,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 17:36:47,944 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 17:36:47,944 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 17:36:47,944 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 17:36:47,944 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 17:36:47,945 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 17:36:47,945 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 17:36:47,945 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 17:36:47,945 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 17:36:47,945 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 17:36:47,945 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 17:36:47,946 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-03 17:36:47,946 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-03 17:36:47,946 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-03 17:36:47,946 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 17:36:47,946 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 17:36:47,946 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 17:36:47,946 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 17:36:47,947 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 17:36:47,947 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 17:36:47,947 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 17:36:47,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 17:36:47,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 17:36:47,947 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 17:36:47,947 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 17:36:47,947 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 17:36:47,947 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-03 17:36:47,947 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-03 17:36:47,947 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 17:36:47,947 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 17:36:47,947 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 17:36:47,947 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 17:36:47,947 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/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 -> bc19904b68b3c373243042dce59996dc4b666d99713ce0cfa66e5db1006d1674 [2025-03-03 17:36:48,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 17:36:48,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 17:36:48,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 17:36:48,196 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 17:36:48,197 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 17:36:48,197 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c [2025-03-03 17:36:49,310 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f48d52890/7894f6ef79ae40389317f8f09a475cb1/FLAG57d9eb4db [2025-03-03 17:36:49,523 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 17:36:49,524 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c [2025-03-03 17:36:49,531 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f48d52890/7894f6ef79ae40389317f8f09a475cb1/FLAG57d9eb4db [2025-03-03 17:36:49,547 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f48d52890/7894f6ef79ae40389317f8f09a475cb1 [2025-03-03 17:36:49,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 17:36:49,550 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 17:36:49,553 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 17:36:49,553 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 17:36:49,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 17:36:49,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:36:49" (1/1) ... [2025-03-03 17:36:49,558 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44d2de6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:49, skipping insertion in model container [2025-03-03 17:36:49,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:36:49" (1/1) ... [2025-03-03 17:36:49,573 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 17:36:49,665 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c[1245,1258] [2025-03-03 17:36:49,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 17:36:49,698 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 17:36:49,706 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b07.c[1245,1258] [2025-03-03 17:36:49,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 17:36:49,732 INFO L204 MainTranslator]: Completed translation [2025-03-03 17:36:49,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:49 WrapperNode [2025-03-03 17:36:49,732 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 17:36:49,733 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 17:36:49,733 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 17:36:49,733 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 17:36:49,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:49" (1/1) ... [2025-03-03 17:36:49,744 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:49" (1/1) ... [2025-03-03 17:36:49,765 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 118 [2025-03-03 17:36:49,766 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 17:36:49,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 17:36:49,766 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 17:36:49,766 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 17:36:49,771 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:49" (1/1) ... [2025-03-03 17:36:49,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:49" (1/1) ... [2025-03-03 17:36:49,774 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:49" (1/1) ... [2025-03-03 17:36:49,785 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2025-03-03 17:36:49,785 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:49" (1/1) ... [2025-03-03 17:36:49,786 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:49" (1/1) ... [2025-03-03 17:36:49,789 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:49" (1/1) ... [2025-03-03 17:36:49,789 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:49" (1/1) ... [2025-03-03 17:36:49,790 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:49" (1/1) ... [2025-03-03 17:36:49,791 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:49" (1/1) ... [2025-03-03 17:36:49,792 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 17:36:49,793 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 17:36:49,793 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 17:36:49,793 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 17:36:49,794 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:49" (1/1) ... [2025-03-03 17:36:49,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 17:36:49,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 17:36:49,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-03 17:36:49,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-03 17:36:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 17:36:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-03 17:36:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-03 17:36:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 17:36:49,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 17:36:49,921 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 17:36:49,923 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 17:36:50,088 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2025-03-03 17:36:50,088 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 17:36:50,098 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 17:36:50,099 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 17:36:50,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 05:36:50 BoogieIcfgContainer [2025-03-03 17:36:50,100 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 17:36:50,101 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 17:36:50,102 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 17:36:50,106 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 17:36:50,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 05:36:49" (1/3) ... [2025-03-03 17:36:50,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff47d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:36:50, skipping insertion in model container [2025-03-03 17:36:50,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:36:49" (2/3) ... [2025-03-03 17:36:50,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff47d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:36:50, skipping insertion in model container [2025-03-03 17:36:50,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 05:36:50" (3/3) ... [2025-03-03 17:36:50,109 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b07.c [2025-03-03 17:36:50,119 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 17:36:50,121 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.h_b07.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-03 17:36:50,152 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 17:36:50,162 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;@50fc8aec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 17:36:50,162 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 17:36:50,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:36:50,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-03 17:36:50,169 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 17:36:50,169 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-03 17:36:50,169 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 17:36:50,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 17:36:50,173 INFO L85 PathProgramCache]: Analyzing trace with hash 38140359, now seen corresponding path program 1 times [2025-03-03 17:36:50,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 17:36:50,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1449598081] [2025-03-03 17:36:50,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 17:36:50,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 17:36:50,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 17:36:50,182 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 17:36:50,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-03 17:36:50,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-03 17:36:50,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-03 17:36:50,263 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 17:36:50,263 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 17:36:50,266 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-03 17:36:50,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 17:36:50,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 17:36:50,471 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 17:36:50,472 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 17:36:50,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449598081] [2025-03-03 17:36:50,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449598081] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 17:36:50,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 17:36:50,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 17:36:50,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787397328] [2025-03-03 17:36:50,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 17:36:50,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 17:36:50,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 17:36:50,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 17:36:50,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 17:36:50,490 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:36:50,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 17:36:50,522 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2025-03-03 17:36:50,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 17:36:50,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-03-03 17:36:50,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 17:36:50,532 INFO L225 Difference]: With dead ends: 13 [2025-03-03 17:36:50,532 INFO L226 Difference]: Without dead ends: 0 [2025-03-03 17:36:50,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 17:36:50,539 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 17:36:50,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 17:36:50,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-03 17:36:50,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-03 17:36:50,553 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) [2025-03-03 17:36:50,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-03 17:36:50,556 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2025-03-03 17:36:50,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 17:36:50,556 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-03 17:36:50,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 17:36:50,557 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-03 17:36:50,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-03 17:36:50,558 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-03 17:36:50,565 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-03 17:36:50,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 17:36:50,762 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-03 17:36:50,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-03 17:36:50,781 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 17:36:50,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 05:36:50 BoogieIcfgContainer [2025-03-03 17:36:50,790 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 17:36:50,790 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 17:36:50,790 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 17:36:50,790 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 17:36:50,791 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 05:36:50" (3/4) ... [2025-03-03 17:36:50,792 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-03 17:36:50,798 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2025-03-03 17:36:50,798 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-03 17:36:50,798 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-03 17:36:50,799 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-03 17:36:50,799 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-03 17:36:50,854 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-03 17:36:50,855 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-03 17:36:50,855 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 17:36:50,855 INFO L158 Benchmark]: Toolchain (without parser) took 1305.32ms. Allocated memory is still 109.1MB. Free memory was 83.5MB in the beginning and 44.2MB in the end (delta: 39.3MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2025-03-03 17:36:50,856 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 62.4MB in the beginning and 62.3MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 17:36:50,857 INFO L158 Benchmark]: CACSL2BoogieTranslator took 179.30ms. Allocated memory is still 109.1MB. Free memory was 83.2MB in the beginning and 70.1MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 17:36:50,859 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.83ms. Allocated memory is still 109.1MB. Free memory was 70.1MB in the beginning and 68.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 17:36:50,859 INFO L158 Benchmark]: Boogie Preprocessor took 26.17ms. Allocated memory is still 109.1MB. Free memory was 68.4MB in the beginning and 66.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 17:36:50,859 INFO L158 Benchmark]: IcfgBuilder took 306.78ms. Allocated memory is still 109.1MB. Free memory was 66.8MB in the beginning and 52.5MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 17:36:50,860 INFO L158 Benchmark]: TraceAbstraction took 688.32ms. Allocated memory is still 109.1MB. Free memory was 52.0MB in the beginning and 50.8MB in the end (delta: 1.1MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2025-03-03 17:36:50,860 INFO L158 Benchmark]: Witness Printer took 64.47ms. Allocated memory is still 109.1MB. Free memory was 50.8MB in the beginning and 44.2MB in the end (delta: 6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 17:36:50,861 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 62.4MB in the beginning and 62.3MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 179.30ms. Allocated memory is still 109.1MB. Free memory was 83.2MB in the beginning and 70.1MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.83ms. Allocated memory is still 109.1MB. Free memory was 70.1MB in the beginning and 68.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.17ms. Allocated memory is still 109.1MB. Free memory was 68.4MB in the beginning and 66.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 306.78ms. Allocated memory is still 109.1MB. Free memory was 66.8MB in the beginning and 52.5MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 688.32ms. Allocated memory is still 109.1MB. Free memory was 52.0MB in the beginning and 50.8MB in the end (delta: 1.1MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Witness Printer took 64.47ms. Allocated memory is still 109.1MB. Free memory was 50.8MB in the beginning and 44.2MB in the end (delta: 6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 3 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 18 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: 62]: Location Invariant Derived location invariant: (((0 == state_6) && (148 == var_10)) && (1 == mask_SORT_1)) RESULT: Ultimate proved your program to be correct! [2025-03-03 17:36:50,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE