java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0930.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:44:41,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:44:41,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:44:41,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:44:41,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:44:41,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:44:41,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:44:41,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:44:41,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:44:41,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:44:41,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:44:42,002 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:44:42,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:44:42,004 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:44:42,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:44:42,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:44:42,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:44:42,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:44:42,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:44:42,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:44:42,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:44:42,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:44:42,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:44:42,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:44:42,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:44:42,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:44:42,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:44:42,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:44:42,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:44:42,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:44:42,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:44:42,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:44:42,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:44:42,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:44:42,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:44:42,041 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:44:42,042 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:44:42,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:44:42,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:44:42,043 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:44:42,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:44:42,045 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 01:44:42,084 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:44:42,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:44:42,084 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:44:42,085 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:44:42,090 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:44:42,090 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:44:42,091 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:44:42,091 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:44:42,091 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:44:42,091 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:44:42,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:44:42,092 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:44:42,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:44:42,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:44:42,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:44:42,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:44:42,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:44:42,093 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:44:42,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:44:42,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:44:42,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:44:42,094 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:44:42,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:44:42,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:44:42,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:44:42,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:44:42,096 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:44:42,096 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:44:42,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:44:42,096 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:44:42,148 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:44:42,159 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:44:42,163 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:44:42,164 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:44:42,165 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:44:42,165 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0930.c [2019-09-10 01:44:42,231 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/700550a73/cd2d140979a540f3a5cc2b44ec10a63d/FLAG6b40bcb0b [2019-09-10 01:44:42,660 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:44:42,662 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0930.c [2019-09-10 01:44:42,671 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/700550a73/cd2d140979a540f3a5cc2b44ec10a63d/FLAG6b40bcb0b [2019-09-10 01:44:43,023 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/700550a73/cd2d140979a540f3a5cc2b44ec10a63d [2019-09-10 01:44:43,035 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:44:43,037 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:44:43,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:44:43,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:44:43,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:44:43,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:44:43" (1/1) ... [2019-09-10 01:44:43,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6462166e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:43, skipping insertion in model container [2019-09-10 01:44:43,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:44:43" (1/1) ... [2019-09-10 01:44:43,059 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:44:43,095 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:44:43,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:44:43,458 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:44:43,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:44:43,514 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:44:43,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:43 WrapperNode [2019-09-10 01:44:43,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:44:43,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:44:43,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:44:43,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:44:43,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:43" (1/1) ... [2019-09-10 01:44:43,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:43" (1/1) ... [2019-09-10 01:44:43,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:43" (1/1) ... [2019-09-10 01:44:43,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:43" (1/1) ... [2019-09-10 01:44:43,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:43" (1/1) ... [2019-09-10 01:44:43,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:43" (1/1) ... [2019-09-10 01:44:43,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:43" (1/1) ... [2019-09-10 01:44:43,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:44:43,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:44:43,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:44:43,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:44:43,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:44:43,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:44:43,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:44:43,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2019-09-10 01:44:43,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2019-09-10 01:44:43,619 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:44:43,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:44:43,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-09-10 01:44:43,619 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2019-09-10 01:44:43,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 01:44:43,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-10 01:44:43,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:44:43,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:44:43,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:44:43,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-10 01:44:43,620 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2019-09-10 01:44:43,620 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:44:43,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:44:43,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:44:44,061 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:44:44,061 INFO L283 CfgBuilder]: Removed 8 assume(true) statements. [2019-09-10 01:44:44,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:44:44 BoogieIcfgContainer [2019-09-10 01:44:44,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:44:44,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:44:44,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:44:44,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:44:44,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:44:43" (1/3) ... [2019-09-10 01:44:44,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b75cf2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:44:44, skipping insertion in model container [2019-09-10 01:44:44,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:43" (2/3) ... [2019-09-10 01:44:44,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b75cf2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:44:44, skipping insertion in model container [2019-09-10 01:44:44,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:44:44" (3/3) ... [2019-09-10 01:44:44,070 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0930.c [2019-09-10 01:44:44,081 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:44:44,088 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:44:44,106 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:44:44,131 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:44:44,132 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:44:44,132 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:44:44,132 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:44:44,132 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:44:44,132 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:44:44,132 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:44:44,132 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:44:44,146 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2019-09-10 01:44:44,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-10 01:44:44,155 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:44:44,155 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:44:44,157 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:44:44,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:44:44,163 INFO L82 PathProgramCache]: Analyzing trace with hash -2038941081, now seen corresponding path program 1 times [2019-09-10 01:44:44,165 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:44:44,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:44:44,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:44:44,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:44:44,211 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:44:44,278 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:44:44,279 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:44:44,279 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-10 01:44:44,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:44:44,312 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-10 01:44:44,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:44:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Exception during sending of exit command (exit): Broken pipe [2019-09-10 01:44:44,406 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 01:44:44,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:44:44 BoogieIcfgContainer [2019-09-10 01:44:44,452 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:44:44,454 INFO L168 Benchmark]: Toolchain (without parser) took 1417.22 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 92.4 MB in the beginning and 123.5 MB in the end (delta: -31.1 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2019-09-10 01:44:44,455 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.3 MB. Free memory was 110.9 MB in the beginning and 110.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:44:44,456 INFO L168 Benchmark]: CACSL2BoogieTranslator took 473.56 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 92.2 MB in the beginning and 175.5 MB in the end (delta: -83.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:44:44,457 INFO L168 Benchmark]: Boogie Preprocessor took 46.54 ms. Allocated memory is still 200.8 MB. Free memory was 175.5 MB in the beginning and 173.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-09-10 01:44:44,458 INFO L168 Benchmark]: RCFGBuilder took 500.40 ms. Allocated memory is still 200.8 MB. Free memory was 173.2 MB in the beginning and 148.6 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:44:44,459 INFO L168 Benchmark]: TraceAbstraction took 388.63 ms. Allocated memory is still 200.8 MB. Free memory was 148.6 MB in the beginning and 123.5 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2019-09-10 01:44:44,463 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 136.3 MB. Free memory was 110.9 MB in the beginning and 110.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 473.56 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 92.2 MB in the beginning and 175.5 MB in the end (delta: -83.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.54 ms. Allocated memory is still 200.8 MB. Free memory was 175.5 MB in the beginning and 173.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 500.40 ms. Allocated memory is still 200.8 MB. Free memory was 173.2 MB in the beginning and 148.6 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 388.63 ms. Allocated memory is still 200.8 MB. Free memory was 148.6 MB in the beginning and 123.5 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 121]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 31. Possible FailurePath: [L12-L16] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L18] static const float zero_log = 0.0; VAL [\old(Lg1_log)=10, \old(Lg2_log)=5, \old(Lg3_log)=6, \old(Lg4_log)=11, \old(Lg5_log)=9, \old(Lg6_log)=12, \old(Lg7_log)=7, \old(ln2_hi_log)=2, \old(ln2_lo_log)=3, \old(two25_log)=4, \old(zero_log)=8, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L116] float x = 1.0f; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L117] CALL, EXPR __ieee754_logf(x) VAL [\old(x)=1, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L21] float hfsq, f, s, z, R, w, t1, t2, dk; [L22] __int32_t k, ix, i, j; VAL [\old(x)=1, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L30] k = 0 VAL [\old(x)=1, ix=2997, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L31] COND TRUE ((ix & 0x7fffffff) == 0) [L32] return -two25_log / zero_log; VAL [\old(x)=1, \result=-1, ix=2997, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L117] RET, EXPR __ieee754_logf(x) VAL [__ieee754_logf(x)=-1, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L117] float res = __ieee754_logf(x); [L120] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=-1, res == 0.0f && __signbit_float(res) == 0=0, two25_log=33554432, x=1, zero_log=0] [L120] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L121] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=-1, two25_log=33554432, x=1, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...