/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.swap_two.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 20:52:29,933 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 20:52:29,975 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 20:52:29,978 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 20:52:29,979 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 20:52:29,998 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 20:52:29,999 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 20:52:29,999 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 20:52:29,999 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 20:52:30,000 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 20:52:30,002 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 20:52:30,003 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 20:52:30,004 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 20:52:30,006 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 20:52:30,006 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 20:52:30,007 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 20:52:30,007 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 20:52:30,007 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 20:52:30,008 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 20:52:30,008 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 20:52:30,008 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 20:52:30,010 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 20:52:30,010 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 20:52:30,010 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 20:52:30,010 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 20:52:30,011 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 20:52:30,011 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 20:52:30,011 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 20:52:30,011 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 20:52:30,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 20:52:30,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 20:52:30,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 20:52:30,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 20:52:30,013 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 20:52:30,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 20:52:30,013 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 20:52:30,013 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 20:52:30,013 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 20:52:30,013 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 20:52:30,013 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 20:52:30,013 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 20:52:30,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 20:52:30,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 20:52:30,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 20:52:30,233 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 20:52:30,233 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 20:52:30,234 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.swap_two.c [2023-12-16 20:52:31,437 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 20:52:31,572 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 20:52:31,572 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.swap_two.c [2023-12-16 20:52:31,580 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa9f0416a/4259f17541464848943880ddd2ad7084/FLAGe8e61ffce [2023-12-16 20:52:31,595 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa9f0416a/4259f17541464848943880ddd2ad7084 [2023-12-16 20:52:31,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 20:52:31,601 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 20:52:31,605 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 20:52:31,605 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 20:52:31,609 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 20:52:31,610 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:52:31" (1/1) ... [2023-12-16 20:52:31,611 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68e0b346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:52:31, skipping insertion in model container [2023-12-16 20:52:31,611 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:52:31" (1/1) ... [2023-12-16 20:52:31,634 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 20:52:31,760 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.swap_two.c[1248,1261] [2023-12-16 20:52:31,801 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 20:52:31,811 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 20:52:31,821 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.swap_two.c[1248,1261] [2023-12-16 20:52:31,848 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 20:52:31,857 INFO L206 MainTranslator]: Completed translation [2023-12-16 20:52:31,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:52:31 WrapperNode [2023-12-16 20:52:31,858 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 20:52:31,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 20:52:31,859 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 20:52:31,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 20:52:31,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:52:31" (1/1) ... [2023-12-16 20:52:31,873 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:52:31" (1/1) ... [2023-12-16 20:52:31,893 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 95 [2023-12-16 20:52:31,894 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 20:52:31,894 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 20:52:31,895 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 20:52:31,895 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 20:52:31,902 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:52:31" (1/1) ... [2023-12-16 20:52:31,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:52:31" (1/1) ... [2023-12-16 20:52:31,911 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:52:31" (1/1) ... [2023-12-16 20:52:31,925 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 20:52:31,925 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:52:31" (1/1) ... [2023-12-16 20:52:31,925 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:52:31" (1/1) ... [2023-12-16 20:52:31,930 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:52:31" (1/1) ... [2023-12-16 20:52:31,932 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:52:31" (1/1) ... [2023-12-16 20:52:31,933 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:52:31" (1/1) ... [2023-12-16 20:52:31,934 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:52:31" (1/1) ... [2023-12-16 20:52:31,935 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 20:52:31,935 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 20:52:31,935 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 20:52:31,936 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 20:52:31,936 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:52:31" (1/1) ... [2023-12-16 20:52:31,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 20:52:31,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 20:52:31,960 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 20:52:32,003 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 20:52:32,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 20:52:32,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 20:52:32,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 20:52:32,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 20:52:32,091 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 20:52:32,093 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 20:52:32,229 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 20:52:32,255 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 20:52:32,255 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 20:52:32,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:52:32 BoogieIcfgContainer [2023-12-16 20:52:32,255 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 20:52:32,257 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 20:52:32,257 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 20:52:32,260 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 20:52:32,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:52:31" (1/3) ... [2023-12-16 20:52:32,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5866ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:52:32, skipping insertion in model container [2023-12-16 20:52:32,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:52:31" (2/3) ... [2023-12-16 20:52:32,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5866ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:52:32, skipping insertion in model container [2023-12-16 20:52:32,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:52:32" (3/3) ... [2023-12-16 20:52:32,262 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.swap_two.c [2023-12-16 20:52:32,277 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 20:52:32,278 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 20:52:32,313 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 20:52:32,324 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;@23dfc1c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 20:52:32,324 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 20:52:32,328 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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) [2023-12-16 20:52:32,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-16 20:52:32,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 20:52:32,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-16 20:52:32,333 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 20:52:32,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 20:52:32,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-12-16 20:52:32,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 20:52:32,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290771553] [2023-12-16 20:52:32,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 20:52:32,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 20:52:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-16 20:52:32,467 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-16 20:52:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-16 20:52:32,521 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-16 20:52:32,523 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-16 20:52:32,524 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 20:52:32,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 20:52:32,530 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-16 20:52:32,534 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 20:52:32,548 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-12-16 20:52:32,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:52:32 BoogieIcfgContainer [2023-12-16 20:52:32,559 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 20:52:32,561 INFO L158 Benchmark]: Toolchain (without parser) took 958.95ms. Allocated memory is still 293.6MB. Free memory was 238.8MB in the beginning and 193.3MB in the end (delta: 45.6MB). Peak memory consumption was 45.1MB. Max. memory is 8.0GB. [2023-12-16 20:52:32,561 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 211.8MB. Free memory is still 158.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 20:52:32,562 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.21ms. Allocated memory is still 293.6MB. Free memory was 238.4MB in the beginning and 226.8MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-16 20:52:32,562 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.48ms. Allocated memory is still 293.6MB. Free memory was 226.8MB in the beginning and 224.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 20:52:32,566 INFO L158 Benchmark]: Boogie Preprocessor took 40.34ms. Allocated memory is still 293.6MB. Free memory was 224.7MB in the beginning and 223.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 20:52:32,567 INFO L158 Benchmark]: RCFGBuilder took 320.20ms. Allocated memory is still 293.6MB. Free memory was 223.1MB in the beginning and 210.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-16 20:52:32,567 INFO L158 Benchmark]: TraceAbstraction took 301.80ms. Allocated memory is still 293.6MB. Free memory was 210.0MB in the beginning and 193.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 20:52:32,569 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 211.8MB. Free memory is still 158.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 253.21ms. Allocated memory is still 293.6MB. Free memory was 238.4MB in the beginning and 226.8MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.48ms. Allocated memory is still 293.6MB. Free memory was 226.8MB in the beginning and 224.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.34ms. Allocated memory is still 293.6MB. Free memory was 224.7MB in the beginning and 223.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 320.20ms. Allocated memory is still 293.6MB. Free memory was 223.1MB in the beginning and 210.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 301.80ms. Allocated memory is still 293.6MB. Free memory was 210.0MB in the beginning and 193.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. 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 - 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 bitwise operation at line 58. Possible FailurePath: [L26] EXPR (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1) [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] EXPR (SORT_1)1 << (1 - 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 - 20); [L30] const SORT_4 msb_SORT_4 = (SORT_4)1 << (20 - 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_4 var_5 = 100; [L36] const SORT_8 var_10 = 100; [L37] const SORT_8 var_13 = 200; [L38] const SORT_1 var_18 = 1; [L39] const SORT_4 var_22 = 200; [L41] SORT_1 input_2; [L42] SORT_1 input_3; [L44] SORT_4 state_6 = __VERIFIER_nondet_uint() & mask_SORT_4; [L45] SORT_4 state_23 = __VERIFIER_nondet_uint() & mask_SORT_4; [L47] SORT_4 init_7_arg_1 = var_5; [L48] state_6 = init_7_arg_1 [L49] SORT_4 init_24_arg_1 = var_22; [L50] state_23 = init_24_arg_1 VAL [init_24_arg_1=200, init_7_arg_1=100, mask_SORT_1=0, msb_SORT_1=0, state_23=200, state_6=100, var_10=100, var_13=200, var_18=1, var_22=200, var_5=100] [L53] input_2 = __VERIFIER_nondet_uchar() [L54] input_3 = __VERIFIER_nondet_uchar() [L57] SORT_4 var_9_arg_0 = state_6; [L58] var_9_arg_0 = var_9_arg_0 & mask_SORT_4 [L59] SORT_8 var_9 = var_9_arg_0; [L60] SORT_8 var_11_arg_0 = var_9; [L61] SORT_8 var_11_arg_1 = var_10; [L62] SORT_1 var_11 = var_11_arg_0 == var_11_arg_1; [L63] SORT_4 var_12_arg_0 = state_6; [L64] var_12_arg_0 = var_12_arg_0 & mask_SORT_4 [L65] SORT_8 var_12 = var_12_arg_0; [L66] SORT_8 var_14_arg_0 = var_12; [L67] SORT_8 var_14_arg_1 = var_13; [L68] SORT_1 var_14 = var_14_arg_0 == var_14_arg_1; [L69] SORT_1 var_15_arg_0 = var_11; [L70] SORT_1 var_15_arg_1 = var_14; [L71] EXPR var_15_arg_0 | var_15_arg_1 [L71] SORT_1 var_15 = var_15_arg_0 | var_15_arg_1; [L72] SORT_1 var_19_arg_0 = var_15; [L73] SORT_1 var_19 = ~var_19_arg_0; [L74] SORT_1 var_20_arg_0 = var_18; [L75] SORT_1 var_20_arg_1 = var_19; [L76] EXPR var_20_arg_0 & var_20_arg_1 [L76] SORT_1 var_20 = var_20_arg_0 & var_20_arg_1; [L77] EXPR var_20 & mask_SORT_1 [L77] var_20 = var_20 & mask_SORT_1 [L78] SORT_1 bad_21_arg_0 = var_20; [L79] CALL __VERIFIER_assert(!(bad_21_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-16 20:52:32,603 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...