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_0910b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:44:39,317 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:44:39,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:44:39,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:44:39,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:44:39,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:44:39,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:44:39,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:44:39,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:44:39,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:44:39,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:44:39,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:44:39,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:44:39,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:44:39,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:44:39,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:44:39,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:44:39,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:44:39,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:44:39,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:44:39,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:44:39,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:44:39,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:44:39,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:44:39,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:44:39,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:44:39,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:44:39,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:44:39,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:44:39,362 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:44:39,362 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:44:39,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:44:39,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:44:39,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:44:39,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:44:39,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:44:39,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:44:39,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:44:39,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:44:39,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:44:39,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:44:39,369 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 01:44:39,398 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:44:39,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:44:39,399 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:44:39,399 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:44:39,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:44:39,400 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:44:39,400 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:44:39,403 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:44:39,403 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:44:39,404 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:44:39,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:44:39,405 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:44:39,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:44:39,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:44:39,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:44:39,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:44:39,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:44:39,408 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:44:39,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:44:39,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:44:39,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:44:39,409 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:44:39,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:44:39,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:44:39,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:44:39,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:44:39,410 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:44:39,410 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:44:39,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:44:39,410 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:44:39,463 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:44:39,474 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:44:39,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:44:39,479 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:44:39,480 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:44:39,480 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0910b.c [2019-09-10 01:44:39,539 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/854b2feb0/05e4b978847947cab8647c4d8001b55c/FLAGe5ac4d6e6 [2019-09-10 01:44:40,005 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:44:40,006 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0910b.c [2019-09-10 01:44:40,016 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/854b2feb0/05e4b978847947cab8647c4d8001b55c/FLAGe5ac4d6e6 [2019-09-10 01:44:40,323 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/854b2feb0/05e4b978847947cab8647c4d8001b55c [2019-09-10 01:44:40,333 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:44:40,335 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:44:40,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:44:40,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:44:40,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:44:40,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:44:40" (1/1) ... [2019-09-10 01:44:40,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b290a63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:40, skipping insertion in model container [2019-09-10 01:44:40,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:44:40" (1/1) ... [2019-09-10 01:44:40,353 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:44:40,392 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:44:40,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:44:40,700 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:44:40,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:44:40,759 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:44:40,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:40 WrapperNode [2019-09-10 01:44:40,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:44:40,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:44:40,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:44:40,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:44:40,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:40" (1/1) ... [2019-09-10 01:44:40,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:40" (1/1) ... [2019-09-10 01:44:40,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:40" (1/1) ... [2019-09-10 01:44:40,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:40" (1/1) ... [2019-09-10 01:44:40,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:40" (1/1) ... [2019-09-10 01:44:40,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:40" (1/1) ... [2019-09-10 01:44:40,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:40" (1/1) ... [2019-09-10 01:44:40,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:44:40,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:44:40,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:44:40,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:44:40,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:40" (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 01:44:40,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:44:40,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:44:40,863 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2019-09-10 01:44:40,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2019-09-10 01:44:40,863 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:44:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:44:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-09-10 01:44:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2019-09-10 01:44:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 01:44:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-10 01:44:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:44:40,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:44:40,865 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2019-09-10 01:44:40,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:44:40,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-10 01:44:40,866 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:44:40,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:44:40,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:44:41,327 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:44:41,327 INFO L283 CfgBuilder]: Removed 8 assume(true) statements. [2019-09-10 01:44:41,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:44:41 BoogieIcfgContainer [2019-09-10 01:44:41,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:44:41,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:44:41,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:44:41,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:44:41,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:44:40" (1/3) ... [2019-09-10 01:44:41,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@81e0475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:44:41, skipping insertion in model container [2019-09-10 01:44:41,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:40" (2/3) ... [2019-09-10 01:44:41,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@81e0475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:44:41, skipping insertion in model container [2019-09-10 01:44:41,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:44:41" (3/3) ... [2019-09-10 01:44:41,335 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0910b.c [2019-09-10 01:44:41,343 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:44:41,350 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:44:41,367 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:44:41,391 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:44:41,391 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:44:41,391 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:44:41,392 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:44:41,392 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:44:41,392 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:44:41,392 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:44:41,392 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:44:41,406 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-09-10 01:44:41,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-09-10 01:44:41,415 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:44:41,416 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:44:41,418 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:44:41,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:44:41,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1465489864, now seen corresponding path program 1 times [2019-09-10 01:44:41,426 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:44:41,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:44:41,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:44:41,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:44:41,474 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:44:41,549 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:44:41,550 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:44:41,550 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 01:44:41,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:44:41,565 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-10 01:44:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:44:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:44:41,730 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 01:44:41,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:44:41 BoogieIcfgContainer [2019-09-10 01:44:41,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:44:41,779 INFO L168 Benchmark]: Toolchain (without parser) took 1442.85 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 89.3 MB in the beginning and 121.3 MB in the end (delta: -32.0 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:44:41,780 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 133.7 MB. Free memory was 108.3 MB in the beginning and 108.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:44:41,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 423.87 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 89.1 MB in the beginning and 174.7 MB in the end (delta: -85.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:44:41,782 INFO L168 Benchmark]: Boogie Preprocessor took 47.32 ms. Allocated memory is still 200.3 MB. Free memory was 174.7 MB in the beginning and 172.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-09-10 01:44:41,783 INFO L168 Benchmark]: RCFGBuilder took 520.74 ms. Allocated memory is still 200.3 MB. Free memory was 172.9 MB in the beginning and 148.5 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2019-09-10 01:44:41,784 INFO L168 Benchmark]: TraceAbstraction took 446.72 ms. Allocated memory is still 200.3 MB. Free memory was 148.5 MB in the beginning and 121.3 MB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:44:41,788 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 133.7 MB. Free memory was 108.3 MB in the beginning and 108.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 423.87 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 89.1 MB in the beginning and 174.7 MB in the end (delta: -85.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.32 ms. Allocated memory is still 200.3 MB. Free memory was 174.7 MB in the beginning and 172.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 520.74 ms. Allocated memory is still 200.3 MB. Free memory was 172.9 MB in the beginning and 148.5 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 446.72 ms. Allocated memory is still 200.3 MB. Free memory was 148.5 MB in the beginning and 121.3 MB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 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 20. Possible FailurePath: [L24-L28] 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; [L30] static const float zero_log = 0.0; VAL [\old(Lg1_log)=9, \old(Lg2_log)=4, \old(Lg3_log)=5, \old(Lg4_log)=10, \old(Lg5_log)=8, \old(Lg6_log)=11, \old(Lg7_log)=6, \old(ln2_hi_log)=1, \old(ln2_lo_log)=2, \old(two25_log)=3, \old(zero_log)=7, 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 = -0.0f; 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=0, zero_log=0] [L117] CALL, EXPR __ieee754_logf(x) VAL [\old(x)=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, zero_log=0] [L33] float hfsq, f, s, z, R, w, t1, t2, dk; [L34] __int32_t k, ix, i, j; VAL [\old(x)=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=0, zero_log=0] [L37] ieee_float_shape_type gf_u; [L38] gf_u.value = (x) [L39] EXPR gf_u.word [L39] (ix) = gf_u.word [L42] k = 0 VAL [\old(x)=0, ix=0, 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=0, zero_log=0] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] return -two25_log / zero_log; VAL [\old(x)=0, \result=0, ix=0, 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=0, zero_log=0] [L117] RET, EXPR __ieee754_logf(x) VAL [__ieee754_logf(x)=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=0, zero_log=0] [L117] float res = __ieee754_logf(x); [L120] CALL, EXPR isinf_float(res) VAL [\old(x)=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, zero_log=0] [L14] __int32_t ix; VAL [\old(x)=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=0, zero_log=0] [L16] ieee_float_shape_type gf_u; [L17] gf_u.value = (x) [L18] EXPR gf_u.word [L18] (ix) = gf_u.word [L20] ix &= 0x7fffffff [L21] return ((ix) == 0x7f800000L); VAL [\old(x)=0, \result=0, ix=9, 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=0, zero_log=0] [L120] RET, EXPR isinf_float(res) VAL [isinf_float(res)=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, res=0, two25_log=33554432, x=0, zero_log=0] [L120] COND TRUE !isinf_float(res) [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=0, two25_log=33554432, x=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 46 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=46occurred 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, 23 NumberOfCodeBlocks, 23 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...