/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/float-newlib/float_req_bl_1271a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 12:03:35,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 12:03:35,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 12:03:35,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 12:03:35,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 12:03:35,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 12:03:35,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 12:03:35,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 12:03:35,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 12:03:35,525 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 12:03:35,527 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 12:03:35,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 12:03:35,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 12:03:35,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 12:03:35,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 12:03:35,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 12:03:35,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 12:03:35,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 12:03:35,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 12:03:35,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 12:03:35,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 12:03:35,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 12:03:35,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 12:03:35,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 12:03:35,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 12:03:35,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 12:03:35,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 12:03:35,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 12:03:35,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 12:03:35,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 12:03:35,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 12:03:35,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 12:03:35,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 12:03:35,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 12:03:35,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 12:03:35,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 12:03:35,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 12:03:35,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 12:03:35,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 12:03:35,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 12:03:35,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 12:03:35,594 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 12:03:35,655 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 12:03:35,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 12:03:35,656 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 12:03:35,656 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 12:03:35,658 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 12:03:35,658 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 12:03:35,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 12:03:35,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 12:03:35,661 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 12:03:35,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 12:03:35,663 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 12:03:35,663 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 12:03:35,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 12:03:35,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 12:03:35,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 12:03:35,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 12:03:35,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 12:03:35,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 12:03:35,664 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 12:03:35,664 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 12:03:35,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 12:03:35,665 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 12:03:35,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 12:03:35,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 12:03:35,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 12:03:35,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 12:03:35,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:03:35,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 12:03:35,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 12:03:35,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 12:03:35,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 12:03:35,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 12:03:35,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 12:03:35,668 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 12:03:36,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 12:03:36,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 12:03:36,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 12:03:36,099 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 12:03:36,099 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 12:03:36,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1271a.c [2022-10-16 12:03:36,179 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f9dbf0ac/859b9a5cdec84efa8d10c27431caf82b/FLAG399956fb8 [2022-10-16 12:03:36,784 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 12:03:36,784 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1271a.c [2022-10-16 12:03:36,801 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f9dbf0ac/859b9a5cdec84efa8d10c27431caf82b/FLAG399956fb8 [2022-10-16 12:03:37,137 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f9dbf0ac/859b9a5cdec84efa8d10c27431caf82b [2022-10-16 12:03:37,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 12:03:37,147 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 12:03:37,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 12:03:37,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 12:03:37,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 12:03:37,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:03:37" (1/1) ... [2022-10-16 12:03:37,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@623478d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:37, skipping insertion in model container [2022-10-16 12:03:37,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:03:37" (1/1) ... [2022-10-16 12:03:37,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 12:03:37,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 12:03:37,613 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1271a.c[4883,4896] [2022-10-16 12:03:37,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:03:37,623 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 12:03:37,676 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1271a.c[4883,4896] [2022-10-16 12:03:37,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:03:37,696 INFO L208 MainTranslator]: Completed translation [2022-10-16 12:03:37,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:37 WrapperNode [2022-10-16 12:03:37,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 12:03:37,698 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 12:03:37,698 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 12:03:37,698 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 12:03:37,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:37" (1/1) ... [2022-10-16 12:03:37,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:37" (1/1) ... [2022-10-16 12:03:37,817 INFO L138 Inliner]: procedures = 19, calls = 76, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 284 [2022-10-16 12:03:37,817 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 12:03:37,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 12:03:37,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 12:03:37,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 12:03:37,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:37" (1/1) ... [2022-10-16 12:03:37,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:37" (1/1) ... [2022-10-16 12:03:37,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:37" (1/1) ... [2022-10-16 12:03:37,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:37" (1/1) ... [2022-10-16 12:03:37,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:37" (1/1) ... [2022-10-16 12:03:37,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:37" (1/1) ... [2022-10-16 12:03:37,871 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:37" (1/1) ... [2022-10-16 12:03:37,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:37" (1/1) ... [2022-10-16 12:03:37,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 12:03:37,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 12:03:37,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 12:03:37,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 12:03:37,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:37" (1/1) ... [2022-10-16 12:03:37,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:03:37,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:03:37,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 12:03:37,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 12:03:38,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 12:03:38,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 12:03:38,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 12:03:38,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-10-16 12:03:38,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 12:03:38,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-10-16 12:03:38,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 12:03:38,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 12:03:38,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 12:03:38,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 12:03:38,027 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2022-10-16 12:03:38,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2022-10-16 12:03:38,180 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 12:03:38,183 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 12:03:38,915 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 12:03:38,925 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 12:03:38,925 INFO L300 CfgBuilder]: Removed 34 assume(true) statements. [2022-10-16 12:03:38,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:03:38 BoogieIcfgContainer [2022-10-16 12:03:38,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 12:03:38,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 12:03:38,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 12:03:38,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 12:03:38,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:03:37" (1/3) ... [2022-10-16 12:03:38,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b98d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:03:38, skipping insertion in model container [2022-10-16 12:03:38,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:03:37" (2/3) ... [2022-10-16 12:03:38,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b98d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:03:38, skipping insertion in model container [2022-10-16 12:03:38,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:03:38" (3/3) ... [2022-10-16 12:03:38,939 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1271a.c [2022-10-16 12:03:38,961 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 12:03:38,961 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2022-10-16 12:03:39,033 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 12:03:39,042 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@1c2f8a69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 12:03:39,043 INFO L358 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2022-10-16 12:03:39,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 189 states, 137 states have (on average 1.832116788321168) internal successors, (251), 185 states have internal predecessors, (251), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 12:03:39,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 12:03:39,056 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:03:39,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:03:39,057 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2022-10-16 12:03:39,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:03:39,064 INFO L85 PathProgramCache]: Analyzing trace with hash -701676421, now seen corresponding path program 1 times [2022-10-16 12:03:39,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:03:39,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077164915] [2022-10-16 12:03:39,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:03:39,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:03:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:03:39,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:03:39,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:03:39,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077164915] [2022-10-16 12:03:39,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077164915] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:03:39,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:03:39,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:03:39,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792981883] [2022-10-16 12:03:39,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:03:39,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 12:03:39,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:03:39,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 12:03:39,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 12:03:39,307 INFO L87 Difference]: Start difference. First operand has 189 states, 137 states have (on average 1.832116788321168) internal successors, (251), 185 states have internal predecessors, (251), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2022-10-16 12:03:39,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:03:39,362 INFO L93 Difference]: Finished difference Result 376 states and 510 transitions. [2022-10-16 12:03:39,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 12:03:39,364 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) Word has length 14 [2022-10-16 12:03:39,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:03:39,377 INFO L225 Difference]: With dead ends: 376 [2022-10-16 12:03:39,377 INFO L226 Difference]: Without dead ends: 177 [2022-10-16 12:03:39,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 12:03:39,388 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:03:39,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:03:39,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-10-16 12:03:39,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2022-10-16 12:03:39,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 126 states have (on average 1.5238095238095237) internal successors, (192), 173 states have internal predecessors, (192), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 12:03:39,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 196 transitions. [2022-10-16 12:03:39,472 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 196 transitions. Word has length 14 [2022-10-16 12:03:39,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:03:39,473 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 196 transitions. [2022-10-16 12:03:39,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2022-10-16 12:03:39,474 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 196 transitions. [2022-10-16 12:03:39,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 12:03:39,474 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:03:39,480 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:03:39,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 12:03:39,481 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2022-10-16 12:03:39,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:03:39,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1920692714, now seen corresponding path program 1 times [2022-10-16 12:03:39,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:03:39,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666147127] [2022-10-16 12:03:39,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:03:39,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:03:39,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 12:03:39,599 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 12:03:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 12:03:39,739 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 12:03:39,740 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 12:03:39,742 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 48 remaining) [2022-10-16 12:03:39,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 48 remaining) [2022-10-16 12:03:39,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 48 remaining) [2022-10-16 12:03:39,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 48 remaining) [2022-10-16 12:03:39,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 48 remaining) [2022-10-16 12:03:39,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 48 remaining) [2022-10-16 12:03:39,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 48 remaining) [2022-10-16 12:03:39,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 48 remaining) [2022-10-16 12:03:39,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 48 remaining) [2022-10-16 12:03:39,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 48 remaining) [2022-10-16 12:03:39,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 48 remaining) [2022-10-16 12:03:39,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 48 remaining) [2022-10-16 12:03:39,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 48 remaining) [2022-10-16 12:03:39,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 48 remaining) [2022-10-16 12:03:39,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 48 remaining) [2022-10-16 12:03:39,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 48 remaining) [2022-10-16 12:03:39,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 48 remaining) [2022-10-16 12:03:39,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 48 remaining) [2022-10-16 12:03:39,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 48 remaining) [2022-10-16 12:03:39,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 48 remaining) [2022-10-16 12:03:39,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 48 remaining) [2022-10-16 12:03:39,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 48 remaining) [2022-10-16 12:03:39,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 48 remaining) [2022-10-16 12:03:39,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 48 remaining) [2022-10-16 12:03:39,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 48 remaining) [2022-10-16 12:03:39,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 48 remaining) [2022-10-16 12:03:39,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 48 remaining) [2022-10-16 12:03:39,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 48 remaining) [2022-10-16 12:03:39,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 48 remaining) [2022-10-16 12:03:39,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 48 remaining) [2022-10-16 12:03:39,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 48 remaining) [2022-10-16 12:03:39,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 48 remaining) [2022-10-16 12:03:39,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 48 remaining) [2022-10-16 12:03:39,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 48 remaining) [2022-10-16 12:03:39,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 48 remaining) [2022-10-16 12:03:39,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 48 remaining) [2022-10-16 12:03:39,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 48 remaining) [2022-10-16 12:03:39,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 48 remaining) [2022-10-16 12:03:39,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 48 remaining) [2022-10-16 12:03:39,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 48 remaining) [2022-10-16 12:03:39,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 48 remaining) [2022-10-16 12:03:39,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 48 remaining) [2022-10-16 12:03:39,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 48 remaining) [2022-10-16 12:03:39,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 48 remaining) [2022-10-16 12:03:39,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 48 remaining) [2022-10-16 12:03:39,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 48 remaining) [2022-10-16 12:03:39,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 48 remaining) [2022-10-16 12:03:39,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 48 remaining) [2022-10-16 12:03:39,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 12:03:39,763 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-10-16 12:03:39,768 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 12:03:39,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:03:39 BoogieIcfgContainer [2022-10-16 12:03:39,803 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 12:03:39,804 INFO L158 Benchmark]: Toolchain (without parser) took 2661.33ms. Allocated memory is still 157.3MB. Free memory was 131.2MB in the beginning and 102.8MB in the end (delta: 28.4MB). Peak memory consumption was 29.0MB. Max. memory is 8.0GB. [2022-10-16 12:03:39,804 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 125.8MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 12:03:39,809 INFO L158 Benchmark]: CACSL2BoogieTranslator took 544.38ms. Allocated memory is still 157.3MB. Free memory was 130.9MB in the beginning and 117.4MB in the end (delta: 13.5MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-10-16 12:03:39,810 INFO L158 Benchmark]: Boogie Procedure Inliner took 119.56ms. Allocated memory is still 157.3MB. Free memory was 117.4MB in the beginning and 138.0MB in the end (delta: -20.6MB). Peak memory consumption was 3.8MB. Max. memory is 8.0GB. [2022-10-16 12:03:39,810 INFO L158 Benchmark]: Boogie Preprocessor took 60.98ms. Allocated memory is still 157.3MB. Free memory was 138.0MB in the beginning and 135.5MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-10-16 12:03:39,811 INFO L158 Benchmark]: RCFGBuilder took 1048.07ms. Allocated memory is still 157.3MB. Free memory was 135.5MB in the beginning and 104.8MB in the end (delta: 30.8MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2022-10-16 12:03:39,812 INFO L158 Benchmark]: TraceAbstraction took 871.70ms. Allocated memory is still 157.3MB. Free memory was 104.1MB in the beginning and 102.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.2MB. Max. memory is 8.0GB. [2022-10-16 12:03:39,817 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 125.8MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 544.38ms. Allocated memory is still 157.3MB. Free memory was 130.9MB in the beginning and 117.4MB in the end (delta: 13.5MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 119.56ms. Allocated memory is still 157.3MB. Free memory was 117.4MB in the beginning and 138.0MB in the end (delta: -20.6MB). Peak memory consumption was 3.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 60.98ms. Allocated memory is still 157.3MB. Free memory was 138.0MB in the beginning and 135.5MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1048.07ms. Allocated memory is still 157.3MB. Free memory was 135.5MB in the beginning and 104.8MB in the end (delta: 30.8MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * TraceAbstraction took 871.70ms. Allocated memory is still 157.3MB. Free memory was 104.1MB in the beginning and 102.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.2MB. 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: 119]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 234, overapproximation of bitwiseAnd at line 98. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L234] float x = 0.0f / 0.0f; [L235] float y = __VERIFIER_nondet_float(); [L237] CALL isfinite_float(y) [L217] __int32_t ix; VAL [\old(x)=4294967327, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967327] [L219] ieee_float_shape_type gf_u; [L220] gf_u.value = (x) [L221] EXPR gf_u.word [L221] (ix) = gf_u.word [L223] ix &= 0x7fffffff [L224] return (((ix) < 0x7f800000L)); VAL [\old(x)=4294967327, \result=1, ix=1, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967327] [L237] RET isfinite_float(y) [L237] COND TRUE isfinite_float(y) [L238] CALL __ieee754_hypotf(x, y) [L84] float a = x, b = y, t1, t2, y1, y2, w; [L85] __int32_t j, k, ha, hb; VAL [\old(x)=4294967326, \old(y)=4294967327, a=4294967326, b=4294967327, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967326, y=4294967327] [L88] ieee_float_shape_type gf_u; [L89] gf_u.value = (x) [L90] EXPR gf_u.word [L90] (ha) = gf_u.word [L92] ha &= 0x7fffffffL VAL [\old(x)=4294967326, \old(y)=4294967327, a=4294967326, b=4294967327, ha=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967326, y=4294967327] [L94] ieee_float_shape_type gf_u; [L95] gf_u.value = (y) [L96] EXPR gf_u.word [L96] (hb) = gf_u.word [L98] hb &= 0x7fffffffL VAL [\old(x)=4294967326, \old(y)=4294967327, a=4294967326, b=4294967327, ha=0, hb=2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967326, y=4294967327] [L99] COND TRUE hb > ha [L100] a = y [L101] b = x [L102] j = ha [L103] ha = hb [L104] hb = j VAL [\old(x)=4294967326, \old(y)=4294967327, a=4294967327, b=4294967326, ha=2147483648, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967326, y=4294967327] [L110] ieee_float_shape_type sf_u; [L111] sf_u.word = (ha) [L112] EXPR sf_u.value [L112] (a) = sf_u.value [L115] ieee_float_shape_type sf_u; [L116] sf_u.word = (hb) [L117] EXPR sf_u.value [L117] (b) = sf_u.value [L119] ha - hb VAL [\old(x)=4294967326, \old(y)=4294967327, a=4294967328, b=4294967329, ha=2147483648, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967326, y=4294967327] - UnprovableResult [Line: 119]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 134]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 134]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 135]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 135]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 158]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 158]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 160]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 160]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 161]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 161]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 162]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 162]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 195]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 195]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 204]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 204]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 204]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 204]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 48]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 48]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 189 locations, 48 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, 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, 215 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 215 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=189occurred 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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2022-10-16 12:03:39,884 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...