/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d128_e0.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 20:05:32,174 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 20:05:32,246 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2023-12-16 20:05:32,251 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 20:05:32,251 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 20:05:32,274 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 20:05:32,274 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 20:05:32,275 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 20:05:32,275 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 20:05:32,279 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 20:05:32,279 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 20:05:32,280 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 20:05:32,280 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 20:05:32,281 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 20:05:32,281 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 20:05:32,281 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 20:05:32,281 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 20:05:32,282 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 20:05:32,282 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 20:05:32,282 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 20:05:32,282 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 20:05:32,282 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 20:05:32,282 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 20:05:32,283 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 20:05:32,283 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 20:05:32,283 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 20:05:32,283 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 20:05:32,283 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 20:05:32,284 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 20:05:32,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 20:05:32,284 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 20:05:32,285 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 20:05:32,285 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 20:05:32,285 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 20:05:32,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 20:05:32,285 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 20:05:32,285 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 20:05:32,285 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 20:05:32,285 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 20:05:32,285 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 20:05:32,285 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 20:05:32,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 20:05:32,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 20:05:32,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 20:05:32,511 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 20:05:32,511 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 20:05:32,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d128_e0.c [2023-12-16 20:05:33,549 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 20:05:33,877 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 20:05:33,877 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d128_e0.c [2023-12-16 20:05:33,910 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72995904f/c0885548676243438aa8ada098811288/FLAGa3c8a1b04 [2023-12-16 20:05:33,924 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72995904f/c0885548676243438aa8ada098811288 [2023-12-16 20:05:33,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 20:05:33,928 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 20:05:33,928 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 20:05:33,928 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 20:05:33,932 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 20:05:33,932 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:05:33" (1/1) ... [2023-12-16 20:05:33,933 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5364a9f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:33, skipping insertion in model container [2023-12-16 20:05:33,933 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:05:33" (1/1) ... [2023-12-16 20:05:34,044 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 20:05:34,275 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d128_e0.c[1272,1285] [2023-12-16 20:05:34,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 20:05:34,953 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 20:05:34,962 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d128_e0.c[1272,1285] [2023-12-16 20:05:35,438 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 20:05:35,449 INFO L206 MainTranslator]: Completed translation [2023-12-16 20:05:35,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:35 WrapperNode [2023-12-16 20:05:35,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 20:05:35,450 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 20:05:35,450 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 20:05:35,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 20:05:35,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:35" (1/1) ... [2023-12-16 20:05:35,650 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:35" (1/1) ... [2023-12-16 20:05:36,243 INFO L138 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 16299 [2023-12-16 20:05:36,243 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 20:05:36,244 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 20:05:36,244 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 20:05:36,244 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 20:05:36,252 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:35" (1/1) ... [2023-12-16 20:05:36,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:35" (1/1) ... [2023-12-16 20:05:36,410 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:35" (1/1) ... [2023-12-16 20:05:36,599 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 20:05:36,599 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:35" (1/1) ... [2023-12-16 20:05:36,599 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:35" (1/1) ... [2023-12-16 20:05:36,772 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:35" (1/1) ... [2023-12-16 20:05:36,794 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:35" (1/1) ... [2023-12-16 20:05:36,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:35" (1/1) ... [2023-12-16 20:05:36,858 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:35" (1/1) ... [2023-12-16 20:05:36,932 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 20:05:36,934 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 20:05:37,011 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 20:05:37,011 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 20:05:37,012 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:35" (1/1) ... [2023-12-16 20:05:37,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 20:05:37,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 20:05:37,038 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) [2023-12-16 20:05:37,056 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 [2023-12-16 20:05:37,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 20:05:37,065 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 20:05:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 20:05:37,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 20:05:37,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 20:05:37,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 20:05:38,390 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 20:05:38,391 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 20:06:20,018 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 20:06:20,381 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 20:06:20,381 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 20:06:20,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:06:20 BoogieIcfgContainer [2023-12-16 20:06:20,382 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 20:06:20,383 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 20:06:20,383 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 20:06:20,385 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 20:06:20,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:05:33" (1/3) ... [2023-12-16 20:06:20,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1333480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:06:20, skipping insertion in model container [2023-12-16 20:06:20,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:05:35" (2/3) ... [2023-12-16 20:06:20,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1333480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:06:20, skipping insertion in model container [2023-12-16 20:06:20,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:06:20" (3/3) ... [2023-12-16 20:06:20,387 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n3_w16_d128_e0.c [2023-12-16 20:06:20,398 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 20:06:20,398 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 20:06:20,425 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 20:06:20,429 INFO L357 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, mHoare=true, 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;@48e51315, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 20:06:20,430 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 20:06:20,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 19 states have (on average 1.263157894736842) internal successors, (24), 20 states have internal predecessors, (24), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 20:06:20,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 20:06:20,437 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:06:20,438 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 20:06:20,438 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:06:20,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:06:20,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1229239407, now seen corresponding path program 1 times [2023-12-16 20:06:20,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:06:20,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265545447] [2023-12-16 20:06:20,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:06:20,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:06:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:06:21,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 20:06:21,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:06:21,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 20:06:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:06:21,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 20:06:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:06:21,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 20:06:21,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:06:21,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 20:06:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:06:21,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 20:06:21,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:06:21,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 20:06:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:06:21,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 20:06:21,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:06:21,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 20:06:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:06:21,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 20:06:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:06:21,437 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 20:06:21,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 20:06:21,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265545447] [2023-12-16 20:06:21,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265545447] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 20:06:21,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 20:06:21,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 20:06:21,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483778874] [2023-12-16 20:06:21,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 20:06:21,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 20:06:21,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 20:06:21,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 20:06:21,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 20:06:21,472 INFO L87 Difference]: Start difference. First operand has 32 states, 19 states have (on average 1.263157894736842) internal successors, (24), 20 states have internal predecessors, (24), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 20:06:21,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 20:06:21,540 INFO L93 Difference]: Finished difference Result 61 states and 96 transitions. [2023-12-16 20:06:21,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 20:06:21,544 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 64 [2023-12-16 20:06:21,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 20:06:21,548 INFO L225 Difference]: With dead ends: 61 [2023-12-16 20:06:21,549 INFO L226 Difference]: Without dead ends: 30 [2023-12-16 20:06:21,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 20:06:21,554 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 20:06:21,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 20:06:21,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-12-16 20:06:21,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-12-16 20:06:21,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 20:06:21,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2023-12-16 20:06:21,584 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 64 [2023-12-16 20:06:21,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 20:06:21,585 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2023-12-16 20:06:21,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 20:06:21,585 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2023-12-16 20:06:21,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 20:06:21,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:06:21,588 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 20:06:21,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 20:06:21,589 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:06:21,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:06:21,589 INFO L85 PathProgramCache]: Analyzing trace with hash -148556931, now seen corresponding path program 1 times [2023-12-16 20:06:21,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:06:21,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250379525] [2023-12-16 20:06:21,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:06:21,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Received shutdown request... [2023-12-16 20:06:38,789 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 20:06:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-16 20:06:38,900 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 20:06:38,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 20:06:38,901 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 65 with TraceHistMax 10,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [250379525] and IpTcStrategyModuleZ3 [2041120556]. [2023-12-16 20:06:38,904 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-16 20:06:38,906 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 20:06:38,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:06:38 BoogieIcfgContainer [2023-12-16 20:06:38,910 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 20:06:38,911 INFO L158 Benchmark]: Toolchain (without parser) took 64982.65ms. Allocated memory was 340.8MB in the beginning and 2.1GB in the end (delta: 1.8GB). Free memory was 267.5MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-16 20:06:38,911 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 213.9MB. Free memory is still 160.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 20:06:38,912 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1521.30ms. Allocated memory was 340.8MB in the beginning and 488.6MB in the end (delta: 147.8MB). Free memory was 266.9MB in the beginning and 298.1MB in the end (delta: -31.2MB). Peak memory consumption was 202.1MB. Max. memory is 8.0GB. [2023-12-16 20:06:38,913 INFO L158 Benchmark]: Boogie Procedure Inliner took 792.76ms. Allocated memory was 488.6MB in the beginning and 1.0GB in the end (delta: 556.8MB). Free memory was 298.1MB in the beginning and 814.5MB in the end (delta: -516.4MB). Peak memory consumption was 94.9MB. Max. memory is 8.0GB. [2023-12-16 20:06:38,913 INFO L158 Benchmark]: Boogie Preprocessor took 688.70ms. Allocated memory is still 1.0GB. Free memory was 814.5MB in the beginning and 712.3MB in the end (delta: 102.2MB). Peak memory consumption was 102.2MB. Max. memory is 8.0GB. [2023-12-16 20:06:38,913 INFO L158 Benchmark]: RCFGBuilder took 43447.98ms. Allocated memory was 1.0GB in the beginning and 2.1GB in the end (delta: 1.0GB). Free memory was 712.3MB in the beginning and 806.5MB in the end (delta: -94.2MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2023-12-16 20:06:38,913 INFO L158 Benchmark]: TraceAbstraction took 18526.67ms. Allocated memory is still 2.1GB. Free memory was 805.5MB in the beginning and 1.4GB in the end (delta: -642.4MB). Peak memory consumption was 374.7MB. Max. memory is 8.0GB. [2023-12-16 20:06:38,915 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 213.9MB. Free memory is still 160.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1521.30ms. Allocated memory was 340.8MB in the beginning and 488.6MB in the end (delta: 147.8MB). Free memory was 266.9MB in the beginning and 298.1MB in the end (delta: -31.2MB). Peak memory consumption was 202.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 792.76ms. Allocated memory was 488.6MB in the beginning and 1.0GB in the end (delta: 556.8MB). Free memory was 298.1MB in the beginning and 814.5MB in the end (delta: -516.4MB). Peak memory consumption was 94.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 688.70ms. Allocated memory is still 1.0GB. Free memory was 814.5MB in the beginning and 712.3MB in the end (delta: 102.2MB). Peak memory consumption was 102.2MB. Max. memory is 8.0GB. * RCFGBuilder took 43447.98ms. Allocated memory was 1.0GB in the beginning and 2.1GB in the end (delta: 1.0GB). Free memory was 712.3MB in the beginning and 806.5MB in the end (delta: -94.2MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. * TraceAbstraction took 18526.67ms. Allocated memory is still 2.1GB. Free memory was 805.5MB in the beginning and 1.4GB in the end (delta: -642.4MB). Peak memory consumption was 374.7MB. Max. memory is 8.0GB. * 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 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was analyzing trace of length 65 with TraceHistMax 10,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [250379525] and IpTcStrategyModuleZ3 [2041120556]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.5s, OverallIterations: 2, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1 IncrementalHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 38 mSDtfsCounter, 1 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 2, 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 180/180 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown