/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-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/square_3+soft_float_4-2a.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 18:10:28,853 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 18:10:28,936 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 18:10:28,940 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 18:10:28,941 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 18:10:28,968 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 18:10:28,969 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 18:10:28,969 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 18:10:28,970 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 18:10:28,973 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 18:10:28,973 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 18:10:28,974 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 18:10:28,975 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 18:10:28,976 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 18:10:28,976 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 18:10:28,976 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 18:10:28,976 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 18:10:28,977 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 18:10:28,977 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 18:10:28,978 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 18:10:28,978 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 18:10:28,979 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 18:10:28,979 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 18:10:28,979 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 18:10:28,979 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 18:10:28,980 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 18:10:28,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 18:10:28,980 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 18:10:28,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 18:10:28,981 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 18:10:28,982 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 18:10:28,982 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 18:10:28,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 18:10:28,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 18:10:28,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 18:10:28,983 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 18:10:28,983 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 18:10:28,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 18:10:28,983 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 18:10:28,983 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 18:10:28,983 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 18:10:28,984 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 18:10:28,984 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 18:10:28,984 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 18:10:29,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 18:10:29,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 18:10:29,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 18:10:29,215 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 18:10:29,215 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 18:10:29,216 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/square_3+soft_float_4-2a.c.cil.c [2023-12-15 18:10:30,385 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 18:10:30,617 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 18:10:30,618 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_3+soft_float_4-2a.c.cil.c [2023-12-15 18:10:30,628 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e863a79fb/228a078026aa46a5b2156be1dcea9a34/FLAG4e2af205d [2023-12-15 18:10:30,643 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e863a79fb/228a078026aa46a5b2156be1dcea9a34 [2023-12-15 18:10:30,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 18:10:30,646 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 18:10:30,649 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 18:10:30,649 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 18:10:30,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 18:10:30,654 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 06:10:30" (1/1) ... [2023-12-15 18:10:30,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7622379e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:10:30, skipping insertion in model container [2023-12-15 18:10:30,655 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 06:10:30" (1/1) ... [2023-12-15 18:10:30,689 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 18:10:30,811 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_3+soft_float_4-2a.c.cil.c[1999,2012] [2023-12-15 18:10:30,821 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_3+soft_float_4-2a.c.cil.c[2393,2406] [2023-12-15 18:10:30,860 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 18:10:30,869 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 18:10:30,879 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_3+soft_float_4-2a.c.cil.c[1999,2012] [2023-12-15 18:10:30,881 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_3+soft_float_4-2a.c.cil.c[2393,2406] [2023-12-15 18:10:30,904 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 18:10:30,915 INFO L206 MainTranslator]: Completed translation [2023-12-15 18:10:30,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:10:30 WrapperNode [2023-12-15 18:10:30,916 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 18:10:30,917 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 18:10:30,917 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 18:10:30,917 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 18:10:30,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:10:30" (1/1) ... [2023-12-15 18:10:30,934 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:10:30" (1/1) ... [2023-12-15 18:10:30,972 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 77 [2023-12-15 18:10:30,973 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 18:10:30,973 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 18:10:30,973 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 18:10:30,974 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 18:10:30,982 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:10:30" (1/1) ... [2023-12-15 18:10:30,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:10:30" (1/1) ... [2023-12-15 18:10:30,984 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:10:30" (1/1) ... [2023-12-15 18:10:31,004 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]. [2023-12-15 18:10:31,004 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:10:30" (1/1) ... [2023-12-15 18:10:31,004 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:10:30" (1/1) ... [2023-12-15 18:10:31,010 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:10:30" (1/1) ... [2023-12-15 18:10:31,014 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:10:30" (1/1) ... [2023-12-15 18:10:31,015 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:10:30" (1/1) ... [2023-12-15 18:10:31,016 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:10:30" (1/1) ... [2023-12-15 18:10:31,027 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 18:10:31,028 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 18:10:31,028 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 18:10:31,028 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 18:10:31,029 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:10:30" (1/1) ... [2023-12-15 18:10:31,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 18:10:31,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 18:10:31,094 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) [2023-12-15 18:10:31,121 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 [2023-12-15 18:10:31,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 18:10:31,127 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-12-15 18:10:31,127 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-12-15 18:10:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2023-12-15 18:10:31,129 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2023-12-15 18:10:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 18:10:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 18:10:31,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 18:10:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-15 18:10:31,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-15 18:10:31,224 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 18:10:31,227 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 18:10:31,561 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 18:10:31,592 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 18:10:31,592 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-15 18:10:31,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 06:10:31 BoogieIcfgContainer [2023-12-15 18:10:31,593 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 18:10:31,595 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 18:10:31,595 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 18:10:31,598 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 18:10:31,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 06:10:30" (1/3) ... [2023-12-15 18:10:31,599 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751dd296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 06:10:31, skipping insertion in model container [2023-12-15 18:10:31,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:10:30" (2/3) ... [2023-12-15 18:10:31,599 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751dd296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 06:10:31, skipping insertion in model container [2023-12-15 18:10:31,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 06:10:31" (3/3) ... [2023-12-15 18:10:31,600 INFO L112 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_4-2a.c.cil.c [2023-12-15 18:10:31,617 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 18:10:31,617 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-15 18:10:31,670 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 18:10:31,677 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;@443e4461, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 18:10:31,677 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-15 18:10:31,682 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 60 states have (on average 1.6166666666666667) internal successors, (97), 62 states have internal predecessors, (97), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-15 18:10:31,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-15 18:10:31,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:10:31,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-15 18:10:31,703 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:10:31,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:10:31,710 INFO L85 PathProgramCache]: Analyzing trace with hash -78987, now seen corresponding path program 1 times [2023-12-15 18:10:31,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:10:31,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209616742] [2023-12-15 18:10:31,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:10:31,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:10:31,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-15 18:10:31,805 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-15 18:10:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-15 18:10:31,836 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-15 18:10:31,837 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-15 18:10:31,838 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-15 18:10:31,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-15 18:10:31,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 18:10:31,843 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-15 18:10:31,846 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 18:10:31,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 06:10:31 BoogieIcfgContainer [2023-12-15 18:10:31,863 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 18:10:31,864 INFO L158 Benchmark]: Toolchain (without parser) took 1218.04ms. Allocated memory was 195.0MB in the beginning and 288.4MB in the end (delta: 93.3MB). Free memory was 132.2MB in the beginning and 219.2MB in the end (delta: -87.0MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-15 18:10:31,865 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 195.0MB. Free memory was 145.1MB in the beginning and 144.9MB in the end (delta: 155.3kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 18:10:31,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.07ms. Allocated memory is still 195.0MB. Free memory was 132.0MB in the beginning and 117.6MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-15 18:10:31,866 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.89ms. Allocated memory was 195.0MB in the beginning and 288.4MB in the end (delta: 93.3MB). Free memory was 117.3MB in the beginning and 255.6MB in the end (delta: -138.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-15 18:10:31,866 INFO L158 Benchmark]: Boogie Preprocessor took 53.61ms. Allocated memory is still 288.4MB. Free memory was 255.6MB in the beginning and 253.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-15 18:10:31,867 INFO L158 Benchmark]: RCFGBuilder took 565.50ms. Allocated memory is still 288.4MB. Free memory was 253.3MB in the beginning and 233.4MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-15 18:10:31,867 INFO L158 Benchmark]: TraceAbstraction took 268.47ms. Allocated memory is still 288.4MB. Free memory was 232.8MB in the beginning and 219.2MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-15 18:10:31,870 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 195.0MB. Free memory was 145.1MB in the beginning and 144.9MB in the end (delta: 155.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 267.07ms. Allocated memory is still 195.0MB. Free memory was 132.0MB in the beginning and 117.6MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.89ms. Allocated memory was 195.0MB in the beginning and 288.4MB in the end (delta: 93.3MB). Free memory was 117.3MB in the beginning and 255.6MB in the end (delta: -138.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 53.61ms. Allocated memory is still 288.4MB. Free memory was 255.6MB in the beginning and 253.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 565.50ms. Allocated memory is still 288.4MB. Free memory was 253.3MB in the beginning and 233.4MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 268.47ms. Allocated memory is still 288.4MB. Free memory was 232.8MB in the beginning and 219.2MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. 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: 48]: 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 someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L310] COND TRUE __VERIFIER_nondet_int() [L311] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=53, x=53] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=53, x=53] [L48] reach_error() VAL [IN=53, x=53] - UnprovableResult [Line: 61]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 2 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=74occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 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 [2023-12-15 18:10:31,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...