/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_n5_w8_d32_e0.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 20:07:16,560 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 20:07:16,630 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 20:07:16,635 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 20:07:16,635 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 20:07:16,656 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 20:07:16,657 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 20:07:16,657 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 20:07:16,658 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 20:07:16,660 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 20:07:16,661 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 20:07:16,661 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 20:07:16,662 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 20:07:16,662 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 20:07:16,663 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 20:07:16,663 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 20:07:16,663 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 20:07:16,663 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 20:07:16,663 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 20:07:16,663 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 20:07:16,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 20:07:16,664 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 20:07:16,664 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 20:07:16,664 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 20:07:16,664 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 20:07:16,665 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 20:07:16,665 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 20:07:16,665 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 20:07:16,665 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 20:07:16,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 20:07:16,666 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 20:07:16,666 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 20:07:16,666 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 20:07:16,666 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 20:07:16,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 20:07:16,666 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 20:07:16,666 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 20:07:16,667 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 20:07:16,667 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 20:07:16,667 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 20:07:16,667 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 20:07:16,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 20:07:16,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 20:07:16,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 20:07:16,906 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 20:07:16,906 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 20:07:16,908 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n5_w8_d32_e0.c [2023-12-16 20:07:17,949 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 20:07:18,251 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 20:07:18,252 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n5_w8_d32_e0.c [2023-12-16 20:07:18,276 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/085f73ef7/81f3647d5a7a4762bfd2817687343a31/FLAG5ce6f9fc5 [2023-12-16 20:07:18,285 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/085f73ef7/81f3647d5a7a4762bfd2817687343a31 [2023-12-16 20:07:18,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 20:07:18,289 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 20:07:18,291 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 20:07:18,291 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 20:07:18,294 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 20:07:18,294 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:07:18" (1/1) ... [2023-12-16 20:07:18,295 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dbded65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:07:18, skipping insertion in model container [2023-12-16 20:07:18,296 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:07:18" (1/1) ... [2023-12-16 20:07:18,386 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 20:07:18,573 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_n5_w8_d32_e0.c[1270,1283] [2023-12-16 20:07:19,028 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 20:07:19,036 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 20:07:19,044 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_n5_w8_d32_e0.c[1270,1283] [2023-12-16 20:07:19,277 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 20:07:19,287 INFO L206 MainTranslator]: Completed translation [2023-12-16 20:07:19,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:07:19 WrapperNode [2023-12-16 20:07:19,287 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 20:07:19,288 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 20:07:19,288 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 20:07:19,288 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 20:07:19,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:07:19" (1/1) ... [2023-12-16 20:07:19,358 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:07:19" (1/1) ... [2023-12-16 20:07:19,609 INFO L138 Inliner]: procedures = 17, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 8045 [2023-12-16 20:07:19,610 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 20:07:19,610 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 20:07:19,610 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 20:07:19,611 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 20:07:19,618 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:07:19" (1/1) ... [2023-12-16 20:07:19,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:07:19" (1/1) ... [2023-12-16 20:07:19,667 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:07:19" (1/1) ... [2023-12-16 20:07:19,797 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 20:07:19,798 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:07:19" (1/1) ... [2023-12-16 20:07:19,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:07:19" (1/1) ... [2023-12-16 20:07:19,934 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:07:19" (1/1) ... [2023-12-16 20:07:19,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:07:19" (1/1) ... [2023-12-16 20:07:19,971 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:07:19" (1/1) ... [2023-12-16 20:07:19,989 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:07:19" (1/1) ... [2023-12-16 20:07:20,024 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 20:07:20,026 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 20:07:20,026 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 20:07:20,027 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 20:07:20,028 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:07:19" (1/1) ... [2023-12-16 20:07:20,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 20:07:20,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 20:07:20,053 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 20:07:20,089 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 20:07:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 20:07:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 20:07:20,104 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 20:07:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 20:07:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 20:07:20,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 20:07:20,923 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 20:07:20,925 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 20:07:32,255 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 20:07:32,482 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 20:07:32,482 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 20:07:32,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:07:32 BoogieIcfgContainer [2023-12-16 20:07:32,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 20:07:32,484 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 20:07:32,484 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 20:07:32,487 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 20:07:32,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:07:18" (1/3) ... [2023-12-16 20:07:32,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1789d26e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:07:32, skipping insertion in model container [2023-12-16 20:07:32,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:07:19" (2/3) ... [2023-12-16 20:07:32,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1789d26e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:07:32, skipping insertion in model container [2023-12-16 20:07:32,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:07:32" (3/3) ... [2023-12-16 20:07:32,489 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n5_w8_d32_e0.c [2023-12-16 20:07:32,502 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 20:07:32,502 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 20:07:32,537 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 20:07:32,543 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;@1211e4fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 20:07:32,543 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 20:07:32,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-16 20:07:32,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-16 20:07:32,555 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:07:32,556 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 20:07:32,556 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:07:32,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:07:32,560 INFO L85 PathProgramCache]: Analyzing trace with hash -870637129, now seen corresponding path program 1 times [2023-12-16 20:07:32,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:07:32,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193614316] [2023-12-16 20:07:32,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:07:32,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:07:32,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:07:33,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 20:07:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:07:33,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 20:07:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:07:33,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 20:07:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:07:33,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 20:07:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:07:33,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 20:07:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:07:33,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 20:07:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:07:33,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 20:07:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:07:33,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 20:07:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:07:33,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 20:07:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:07:33,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 20:07:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:07:33,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 20:07:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:07:33,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 20:07:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:07:33,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 20:07:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:07:33,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 20:07:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:07:33,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 20:07:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:07:33,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 20:07:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 20:07:33,210 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-16 20:07:33,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 20:07:33,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193614316] [2023-12-16 20:07:33,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193614316] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 20:07:33,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 20:07:33,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 20:07:33,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952431321] [2023-12-16 20:07:33,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 20:07:33,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 20:07:33,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 20:07:33,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 20:07:33,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 20:07:33,241 INFO L87 Difference]: Start difference. First operand has 44 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 20:07:33,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 20:07:33,283 INFO L93 Difference]: Finished difference Result 85 states and 138 transitions. [2023-12-16 20:07:33,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 20:07:33,287 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 100 [2023-12-16 20:07:33,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 20:07:33,292 INFO L225 Difference]: With dead ends: 85 [2023-12-16 20:07:33,293 INFO L226 Difference]: Without dead ends: 42 [2023-12-16 20:07:33,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 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 20:07:33,298 INFO L413 NwaCegarLoop]: 56 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, 56 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 20:07:33,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 20:07:33,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-12-16 20:07:33,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-12-16 20:07:33,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-16 20:07:33,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 57 transitions. [2023-12-16 20:07:33,330 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 57 transitions. Word has length 100 [2023-12-16 20:07:33,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 20:07:33,331 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 57 transitions. [2023-12-16 20:07:33,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 20:07:33,331 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 57 transitions. [2023-12-16 20:07:33,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-16 20:07:33,334 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:07:33,334 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 20:07:33,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 20:07:33,334 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:07:33,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:07:33,335 INFO L85 PathProgramCache]: Analyzing trace with hash -664786537, now seen corresponding path program 1 times [2023-12-16 20:07:33,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:07:33,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753114997] [2023-12-16 20:07:33,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:07:33,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:08:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-16 20:08:01,874 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. Received shutdown request... [2023-12-16 20:08:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-16 20:08:23,837 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 20:08:23,884 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 20:08:23,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 20:08:23,884 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 101 with TraceHistMax 16,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [753114997] and IpTcStrategyModuleZ3 [1189842255]. [2023-12-16 20:08:23,887 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-16 20:08:23,889 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 20:08:23,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:08:23 BoogieIcfgContainer [2023-12-16 20:08:23,891 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 20:08:23,892 INFO L158 Benchmark]: Toolchain (without parser) took 65603.12ms. Allocated memory was 232.8MB in the beginning and 1.2GB in the end (delta: 995.1MB). Free memory was 169.7MB in the beginning and 521.0MB in the end (delta: -351.4MB). Peak memory consumption was 894.2MB. Max. memory is 8.0GB. [2023-12-16 20:08:23,892 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 130.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 20:08:23,892 INFO L158 Benchmark]: CACSL2BoogieTranslator took 997.01ms. Allocated memory is still 232.8MB. Free memory was 169.4MB in the beginning and 143.4MB in the end (delta: 25.9MB). Peak memory consumption was 101.2MB. Max. memory is 8.0GB. [2023-12-16 20:08:23,893 INFO L158 Benchmark]: Boogie Procedure Inliner took 321.47ms. Allocated memory was 232.8MB in the beginning and 391.1MB in the end (delta: 158.3MB). Free memory was 142.9MB in the beginning and 266.1MB in the end (delta: -123.2MB). Peak memory consumption was 91.8MB. Max. memory is 8.0GB. [2023-12-16 20:08:23,893 INFO L158 Benchmark]: Boogie Preprocessor took 414.29ms. Allocated memory is still 391.1MB. Free memory was 266.1MB in the beginning and 224.2MB in the end (delta: 41.9MB). Peak memory consumption was 47.7MB. Max. memory is 8.0GB. [2023-12-16 20:08:23,893 INFO L158 Benchmark]: RCFGBuilder took 12456.31ms. Allocated memory was 391.1MB in the beginning and 1.0GB in the end (delta: 623.9MB). Free memory was 224.2MB in the beginning and 784.1MB in the end (delta: -559.9MB). Peak memory consumption was 595.1MB. Max. memory is 8.0GB. [2023-12-16 20:08:23,894 INFO L158 Benchmark]: TraceAbstraction took 51407.15ms. Allocated memory was 1.0GB in the beginning and 1.2GB in the end (delta: 212.9MB). Free memory was 783.6MB in the beginning and 521.0MB in the end (delta: 262.6MB). Peak memory consumption was 725.9MB. Max. memory is 8.0GB. [2023-12-16 20:08:23,895 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 130.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 997.01ms. Allocated memory is still 232.8MB. Free memory was 169.4MB in the beginning and 143.4MB in the end (delta: 25.9MB). Peak memory consumption was 101.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 321.47ms. Allocated memory was 232.8MB in the beginning and 391.1MB in the end (delta: 158.3MB). Free memory was 142.9MB in the beginning and 266.1MB in the end (delta: -123.2MB). Peak memory consumption was 91.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 414.29ms. Allocated memory is still 391.1MB. Free memory was 266.1MB in the beginning and 224.2MB in the end (delta: 41.9MB). Peak memory consumption was 47.7MB. Max. memory is 8.0GB. * RCFGBuilder took 12456.31ms. Allocated memory was 391.1MB in the beginning and 1.0GB in the end (delta: 623.9MB). Free memory was 224.2MB in the beginning and 784.1MB in the end (delta: -559.9MB). Peak memory consumption was 595.1MB. Max. memory is 8.0GB. * TraceAbstraction took 51407.15ms. Allocated memory was 1.0GB in the beginning and 1.2GB in the end (delta: 212.9MB). Free memory was 783.6MB in the beginning and 521.0MB in the end (delta: 262.6MB). Peak memory consumption was 725.9MB. 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 101 with TraceHistMax 16,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [753114997] and IpTcStrategyModuleZ3 [1189842255]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 51.4s, OverallIterations: 2, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 56 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, 56 mSDtfsCounter, 1 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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, 0.4s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 480/480 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