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_0910a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:44:38,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:44:38,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:44:38,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:44:38,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:44:38,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:44:38,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:44:38,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:44:38,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:44:38,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:44:38,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:44:38,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:44:38,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:44:38,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:44:38,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:44:39,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:44:39,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:44:39,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:44:39,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:44:39,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:44:39,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:44:39,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:44:39,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:44:39,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:44:39,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:44:39,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:44:39,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:44:39,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:44:39,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:44:39,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:44:39,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:44:39,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:44:39,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:44:39,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:44:39,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:44:39,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:44:39,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:44:39,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:44:39,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:44:39,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:44:39,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:44:39,022 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 01:44:39,037 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:44:39,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:44:39,038 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:44:39,038 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:44:39,038 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:44:39,039 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:44:39,039 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:44:39,039 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:44:39,039 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:44:39,039 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:44:39,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:44:39,040 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:44:39,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:44:39,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:44:39,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:44:39,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:44:39,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:44:39,041 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:44:39,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:44:39,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:44:39,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:44:39,042 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:44:39,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:44:39,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:44:39,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:44:39,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:44:39,043 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:44:39,043 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:44:39,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:44:39,044 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:44:39,071 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:44:39,084 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:44:39,087 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:44:39,089 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:44:39,089 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:44:39,090 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0910a.c [2019-09-10 01:44:39,152 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b9364d8c/9a29f32d2089446abc7406daadbff8eb/FLAG28053f4fe [2019-09-10 01:44:39,595 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:44:39,598 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0910a.c [2019-09-10 01:44:39,607 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b9364d8c/9a29f32d2089446abc7406daadbff8eb/FLAG28053f4fe [2019-09-10 01:44:39,983 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b9364d8c/9a29f32d2089446abc7406daadbff8eb [2019-09-10 01:44:39,992 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:44:39,994 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:44:39,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:44:39,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:44:40,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:44:40,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:44:39" (1/1) ... [2019-09-10 01:44:40,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7abe9483 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 01:44:40,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:44:39" (1/1) ... [2019-09-10 01:44:40,013 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:44:40,044 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:44:40,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:44:40,278 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:44:40,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:44:40,443 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:44:40,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:44:40 WrapperNode [2019-09-10 01:44:40,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:44:40,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:44:40,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:44:40,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:44:40,459 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 01:44:40,459 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 01:44:40,473 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 01:44:40,473 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 01:44:40,487 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 01:44:40,501 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 01:44:40,503 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 01:44:40,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:44:40,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:44:40,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:44:40,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:44:40,509 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 01:44:40,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:44:40,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:44:40,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2019-09-10 01:44:40,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2019-09-10 01:44:40,568 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:44:40,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:44:40,568 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2019-09-10 01:44:40,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 01:44:40,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-10 01:44:40,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:44:40,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:44:40,569 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2019-09-10 01:44:40,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:44:40,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-10 01:44:40,569 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:44:40,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:44:40,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:44:41,038 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:44:41,038 INFO L283 CfgBuilder]: Removed 8 assume(true) statements. [2019-09-10 01:44:41,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:44:41 BoogieIcfgContainer [2019-09-10 01:44:41,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:44:41,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:44:41,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:44:41,044 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:44:41,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:44:39" (1/3) ... [2019-09-10 01:44:41,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d1f99e 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 01:44:41,045 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 01:44:41,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d1f99e 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 01:44:41,046 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 01:44:41,048 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0910a.c [2019-09-10 01:44:41,056 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:44:41,064 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:44:41,082 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:44:41,112 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:44:41,112 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:44:41,112 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:44:41,113 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:44:41,113 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:44:41,113 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:44:41,113 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:44:41,113 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:44:41,128 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-09-10 01:44:41,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-09-10 01:44:41,138 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:44:41,139 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 01:44:41,141 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:44:41,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:44:41,148 INFO L82 PathProgramCache]: Analyzing trace with hash -490931608, now seen corresponding path program 1 times [2019-09-10 01:44:41,150 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:44:41,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:44:41,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:44:41,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:44:41,198 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:44:41,268 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:44:41,268 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:44:41,268 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 01:44:41,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:44:41,286 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-10 01:44:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:44:41,366 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 01:44:41,436 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 01:44:41,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:44:41 BoogieIcfgContainer [2019-09-10 01:44:41,529 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:44:41,533 INFO L168 Benchmark]: Toolchain (without parser) took 1537.37 ms. Allocated memory was 137.9 MB in the beginning and 197.7 MB in the end (delta: 59.8 MB). Free memory was 87.3 MB in the beginning and 120.9 MB in the end (delta: -33.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:44:41,536 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 106.3 MB in the beginning and 106.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:44:41,538 INFO L168 Benchmark]: CACSL2BoogieTranslator took 448.86 ms. Allocated memory was 137.9 MB in the beginning and 197.7 MB in the end (delta: 59.8 MB). Free memory was 87.1 MB in the beginning and 173.4 MB in the end (delta: -86.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-09-10 01:44:41,541 INFO L168 Benchmark]: Boogie Preprocessor took 63.00 ms. Allocated memory is still 197.7 MB. Free memory was 173.4 MB in the beginning and 171.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-09-10 01:44:41,543 INFO L168 Benchmark]: RCFGBuilder took 532.44 ms. Allocated memory is still 197.7 MB. Free memory was 170.9 MB in the beginning and 147.5 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2019-09-10 01:44:41,544 INFO L168 Benchmark]: TraceAbstraction took 488.60 ms. Allocated memory is still 197.7 MB. Free memory was 146.9 MB in the beginning and 120.9 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2019-09-10 01:44:41,556 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 137.9 MB. Free memory was 106.3 MB in the beginning and 106.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 448.86 ms. Allocated memory was 137.9 MB in the beginning and 197.7 MB in the end (delta: 59.8 MB). Free memory was 87.1 MB in the beginning and 173.4 MB in the end (delta: -86.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 63.00 ms. Allocated memory is still 197.7 MB. Free memory was 173.4 MB in the beginning and 171.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 532.44 ms. Allocated memory is still 197.7 MB. Free memory was 170.9 MB in the beginning and 147.5 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 488.60 ms. Allocated memory is still 197.7 MB. Free memory was 146.9 MB in the beginning and 120.9 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 120]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 19. Possible FailurePath: [L23-L27] 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; [L29] 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] [L115] 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] [L116] 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] [L32] float hfsq, f, s, z, R, w, t1, t2, dk; [L33] __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] [L36] ieee_float_shape_type gf_u; [L37] gf_u.value = (x) [L38] EXPR gf_u.word [L38] (ix) = gf_u.word [L41] k = 0 VAL [\old(x)=0, ix=1888, 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] [L42] COND TRUE ((ix & 0x7fffffff) == 0) [L43] return -two25_log / zero_log; VAL [\old(x)=0, \result=0, ix=1888, 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] [L116] 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] [L116] float res = __ieee754_logf(x); [L119] 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] [L13] __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] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (ix) = gf_u.word [L19] ix &= 0x7fffffff [L20] return ((ix) == 0x7f800000L); VAL [\old(x)=0, \result=0, ix=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, x=0, zero_log=0] [L119] 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] [L119] COND TRUE !isinf_float(res) [L120] __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, 0.4s 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...