/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_5+soft_float_2a.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 01:44:45,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 01:44:45,597 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 01:44:45,603 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 01:44:45,603 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 01:44:45,622 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 01:44:45,623 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 01:44:45,623 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 01:44:45,624 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 01:44:45,624 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 01:44:45,624 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 01:44:45,624 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 01:44:45,625 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 01:44:45,625 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 01:44:45,627 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 01:44:45,627 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 01:44:45,628 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 01:44:45,628 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 01:44:45,629 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 01:44:45,629 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 01:44:45,629 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 01:44:45,633 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 01:44:45,633 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 01:44:45,633 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 01:44:45,633 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 01:44:45,633 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 01:44:45,634 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 01:44:45,634 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 01:44:45,634 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 01:44:45,634 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 01:44:45,634 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 01:44:45,634 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 01:44:45,635 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 01:44:45,635 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 01:44:45,635 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 01:44:45,635 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 01:44:45,635 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 01:44:45,636 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 01:44:45,636 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 01:44:45,636 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 01:44:45,636 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 01:44:45,637 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 01:44:45,637 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 01:44:45,637 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 01:44:45,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 01:44:45,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 01:44:45,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 01:44:45,815 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 01:44:45,815 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 01:44:45,816 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/square_5+soft_float_2a.c.cil.c [2023-12-19 01:44:46,908 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 01:44:47,056 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 01:44:47,057 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_5+soft_float_2a.c.cil.c [2023-12-19 01:44:47,065 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebea95af7/9fa0002219e9493280b431367bca08cc/FLAG6be13aa84 [2023-12-19 01:44:47,076 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebea95af7/9fa0002219e9493280b431367bca08cc [2023-12-19 01:44:47,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 01:44:47,079 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 01:44:47,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 01:44:47,080 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 01:44:47,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 01:44:47,085 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:44:47" (1/1) ... [2023-12-19 01:44:47,086 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@334db28e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:44:47, skipping insertion in model container [2023-12-19 01:44:47,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:44:47" (1/1) ... [2023-12-19 01:44:47,117 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 01:44:47,277 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_5+soft_float_2a.c.cil.c[1998,2011] [2023-12-19 01:44:47,283 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_5+soft_float_2a.c.cil.c[2367,2380] [2023-12-19 01:44:47,325 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 01:44:47,334 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 01:44:47,352 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_5+soft_float_2a.c.cil.c[1998,2011] [2023-12-19 01:44:47,354 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_5+soft_float_2a.c.cil.c[2367,2380] [2023-12-19 01:44:47,382 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 01:44:47,394 INFO L206 MainTranslator]: Completed translation [2023-12-19 01:44:47,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:44:47 WrapperNode [2023-12-19 01:44:47,395 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 01:44:47,396 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 01:44:47,396 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 01:44:47,397 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 01:44:47,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:44:47" (1/1) ... [2023-12-19 01:44:47,418 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:44:47" (1/1) ... [2023-12-19 01:44:47,444 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 167 [2023-12-19 01:44:47,445 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 01:44:47,445 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 01:44:47,445 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 01:44:47,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 01:44:47,453 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:44:47" (1/1) ... [2023-12-19 01:44:47,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:44:47" (1/1) ... [2023-12-19 01:44:47,463 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:44:47" (1/1) ... [2023-12-19 01:44:47,479 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]. [2023-12-19 01:44:47,479 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:44:47" (1/1) ... [2023-12-19 01:44:47,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:44:47" (1/1) ... [2023-12-19 01:44:47,483 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:44:47" (1/1) ... [2023-12-19 01:44:47,485 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:44:47" (1/1) ... [2023-12-19 01:44:47,486 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:44:47" (1/1) ... [2023-12-19 01:44:47,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:44:47" (1/1) ... [2023-12-19 01:44:47,499 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 01:44:47,500 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 01:44:47,500 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 01:44:47,500 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 01:44:47,501 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:44:47" (1/1) ... [2023-12-19 01:44:47,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 01:44:47,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:44:47,538 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) [2023-12-19 01:44:47,549 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 [2023-12-19 01:44:47,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 01:44:47,565 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-12-19 01:44:47,565 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-12-19 01:44:47,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 01:44:47,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 01:44:47,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 01:44:47,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-19 01:44:47,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-19 01:44:47,637 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 01:44:47,640 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 01:44:47,877 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 01:44:47,914 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 01:44:47,935 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-19 01:44:47,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:44:47 BoogieIcfgContainer [2023-12-19 01:44:47,936 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 01:44:47,938 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 01:44:47,938 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 01:44:47,941 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 01:44:47,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 01:44:47" (1/3) ... [2023-12-19 01:44:47,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3faf3759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:44:47, skipping insertion in model container [2023-12-19 01:44:47,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:44:47" (2/3) ... [2023-12-19 01:44:47,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3faf3759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:44:47, skipping insertion in model container [2023-12-19 01:44:47,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:44:47" (3/3) ... [2023-12-19 01:44:47,945 INFO L112 eAbstractionObserver]: Analyzing ICFG square_5+soft_float_2a.c.cil.c [2023-12-19 01:44:47,958 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 01:44:47,958 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-19 01:44:47,995 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 01:44:47,999 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;@7288c939, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 01:44:47,999 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-19 01:44:48,002 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 62 states have (on average 1.6451612903225807) internal successors, (102), 65 states have internal predecessors, (102), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-19 01:44:48,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-19 01:44:48,006 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:44:48,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-19 01:44:48,007 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:44:48,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:44:48,010 INFO L85 PathProgramCache]: Analyzing trace with hash 257583372, now seen corresponding path program 1 times [2023-12-19 01:44:48,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:44:48,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664480093] [2023-12-19 01:44:48,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:44:48,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:44:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 01:44:48,095 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-19 01:44:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 01:44:48,131 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-19 01:44:48,132 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-19 01:44:48,134 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-19 01:44:48,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-19 01:44:48,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 01:44:48,141 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-19 01:44:48,145 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 01:44:48,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 01:44:48 BoogieIcfgContainer [2023-12-19 01:44:48,159 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 01:44:48,160 INFO L158 Benchmark]: Toolchain (without parser) took 1080.56ms. Allocated memory was 191.9MB in the beginning and 250.6MB in the end (delta: 58.7MB). Free memory was 141.3MB in the beginning and 203.6MB in the end (delta: -62.3MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 01:44:48,161 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 191.9MB. Free memory was 143.0MB in the beginning and 142.9MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 01:44:48,161 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.81ms. Allocated memory is still 191.9MB. Free memory was 141.3MB in the beginning and 126.2MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-19 01:44:48,163 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.47ms. Allocated memory is still 191.9MB. Free memory was 126.2MB in the beginning and 124.1MB in the end (delta: 2.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-19 01:44:48,166 INFO L158 Benchmark]: Boogie Preprocessor took 53.83ms. Allocated memory is still 191.9MB. Free memory was 124.1MB in the beginning and 121.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 01:44:48,166 INFO L158 Benchmark]: RCFGBuilder took 436.32ms. Allocated memory was 191.9MB in the beginning and 250.6MB in the end (delta: 58.7MB). Free memory was 121.4MB in the beginning and 218.2MB in the end (delta: -96.9MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-19 01:44:48,166 INFO L158 Benchmark]: TraceAbstraction took 221.00ms. Allocated memory is still 250.6MB. Free memory was 217.2MB in the beginning and 203.6MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-19 01:44:48,171 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 191.9MB. Free memory was 143.0MB in the beginning and 142.9MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 315.81ms. Allocated memory is still 191.9MB. Free memory was 141.3MB in the beginning and 126.2MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.47ms. Allocated memory is still 191.9MB. Free memory was 126.2MB in the beginning and 124.1MB in the end (delta: 2.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 53.83ms. Allocated memory is still 191.9MB. Free memory was 124.1MB in the beginning and 121.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 436.32ms. Allocated memory was 191.9MB in the beginning and 250.6MB in the end (delta: 58.7MB). Free memory was 121.4MB in the beginning and 218.2MB in the end (delta: -96.9MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 221.00ms. Allocated memory is still 250.6MB. Free memory was 217.2MB in the beginning and 203.6MB 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: [L322] COND TRUE __VERIFIER_nondet_int() [L323] 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 < 1.3985f) VAL [IN=53, x=53] [L48] reach_error() VAL [IN=53, x=53] - UnprovableResult [Line: 60]: 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 3 procedures, 72 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=72occurred 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 [2023-12-19 01:44:48,189 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...