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/double_req_bl_1121a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:43:33,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:43:33,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:43:33,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-10 01:43:33,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:43:33,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:43:33,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:43:33,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:43:33,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:43:33,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:43:33,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:43:33,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:43:33,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:43:33,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:43:33,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:43:33,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:43:33,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-10 01:43:33,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:43:33,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:43:33,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:43:33,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:43:33,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:43:33,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:43:33,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:43:33,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:43:33,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:43:33,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:43:33,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:43:33,754 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 01:43:33,768 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:43:33,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:43:33,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:43:33,769 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:43:33,770 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:43:33,770 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:43:33,771 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:43:33,771 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:43:33,771 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:43:33,771 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:43:33,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:43:33,772 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:43:33,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:43:33,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:43:33,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:43:33,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:43:33,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:43:33,773 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:43:33,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:43:33,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:43:33,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:43:33,774 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:43:33,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:43:33,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:43:33,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:43:33,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:43:33,775 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:43:33,775 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:43:33,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:43:33,775 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:43:33,803 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:43:33,816 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:43:33,819 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:43:33,821 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:43:33,821 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:43:33,822 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1121a.c [2019-09-10 01:43:33,880 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6f1bb583/64b9a51f5ec3405989ec5f335f75d7ad/FLAG212b06839 [2019-09-10 01:43:34,325 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:43:34,326 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1121a.c [2019-09-10 01:43:34,337 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6f1bb583/64b9a51f5ec3405989ec5f335f75d7ad/FLAG212b06839 [2019-09-10 01:43:34,705 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6f1bb583/64b9a51f5ec3405989ec5f335f75d7ad [2019-09-10 01:43:34,718 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:43:34,719 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:43:34,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:43:34,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:43:34,726 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:43:34,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:43:34" (1/1) ... [2019-09-10 01:43:34,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@666deafa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:34, skipping insertion in model container [2019-09-10 01:43:34,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:43:34" (1/1) ... [2019-09-10 01:43:34,738 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:43:34,777 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:43:35,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:43:35,114 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:43:35,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:43:35,191 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:43:35,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:35 WrapperNode [2019-09-10 01:43:35,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:43:35,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:43:35,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:43:35,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:43:35,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:35" (1/1) ... [2019-09-10 01:43:35,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:35" (1/1) ... [2019-09-10 01:43:35,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:35" (1/1) ... [2019-09-10 01:43:35,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:35" (1/1) ... [2019-09-10 01:43:35,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:35" (1/1) ... [2019-09-10 01:43:35,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:35" (1/1) ... [2019-09-10 01:43:35,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:35" (1/1) ... [2019-09-10 01:43:35,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:43:35,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:43:35,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:43:35,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:43:35,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:35" (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 01:43:35,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:43:35,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:43:35,325 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2019-09-10 01:43:35,326 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2019-09-10 01:43:35,326 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:43:35,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:43:35,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-10 01:43:35,326 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2019-09-10 01:43:35,326 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2019-09-10 01:43:35,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 01:43:35,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-10 01:43:35,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:43:35,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:43:35,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-10 01:43:35,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:43:35,328 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:43:35,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:43:35,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-09-10 01:43:35,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:43:35,928 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:43:35,928 INFO L283 CfgBuilder]: Removed 14 assume(true) statements. [2019-09-10 01:43:35,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:43:35 BoogieIcfgContainer [2019-09-10 01:43:35,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:43:35,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:43:35,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:43:35,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:43:35,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:43:34" (1/3) ... [2019-09-10 01:43:35,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae52728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:43:35, skipping insertion in model container [2019-09-10 01:43:35,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:35" (2/3) ... [2019-09-10 01:43:35,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae52728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:43:35, skipping insertion in model container [2019-09-10 01:43:35,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:43:35" (3/3) ... [2019-09-10 01:43:35,939 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121a.c [2019-09-10 01:43:35,949 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:43:35,959 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:43:35,976 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:43:36,001 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:43:36,001 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:43:36,001 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:43:36,002 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:43:36,002 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:43:36,002 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:43:36,002 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:43:36,002 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:43:36,017 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2019-09-10 01:43:36,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-09-10 01:43:36,028 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:43:36,029 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] [2019-09-10 01:43:36,031 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:43:36,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:43:36,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1491251706, now seen corresponding path program 1 times [2019-09-10 01:43:36,039 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:43:36,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:43:36,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:43:36,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:43:36,088 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:43:36,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:43:36,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:43:36,259 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:43:36,259 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 01:43:36,259 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:43:36,265 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:43:36,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:43:36,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:43:36,285 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2019-09-10 01:43:36,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:43:36,308 INFO L93 Difference]: Finished difference Result 65 states and 91 transitions. [2019-09-10 01:43:36,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:43:36,310 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2019-09-10 01:43:36,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:43:36,323 INFO L225 Difference]: With dead ends: 65 [2019-09-10 01:43:36,323 INFO L226 Difference]: Without dead ends: 61 [2019-09-10 01:43:36,326 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:43:36,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-09-10 01:43:36,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2019-09-10 01:43:36,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-09-10 01:43:36,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 87 transitions. [2019-09-10 01:43:36,378 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 87 transitions. Word has length 22 [2019-09-10 01:43:36,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:43:36,379 INFO L475 AbstractCegarLoop]: Abstraction has 61 states and 87 transitions. [2019-09-10 01:43:36,379 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:43:36,379 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 87 transitions. [2019-09-10 01:43:36,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-09-10 01:43:36,381 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:43:36,381 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] [2019-09-10 01:43:36,381 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:43:36,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:43:36,382 INFO L82 PathProgramCache]: Analyzing trace with hash 2007582582, now seen corresponding path program 1 times [2019-09-10 01:43:36,382 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:43:36,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:43:36,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:43:36,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:43:36,384 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:43:36,421 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:43:36,422 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:43:36,423 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) [2019-09-10 01:43:36,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:43:36,457 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-10 01:43:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:43:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:43:36,596 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 01:43:36,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:43:36 BoogieIcfgContainer [2019-09-10 01:43:36,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:43:36,664 INFO L168 Benchmark]: Toolchain (without parser) took 1942.14 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 89.1 MB in the beginning and 99.2 MB in the end (delta: -10.1 MB). Peak memory consumption was 56.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:43:36,665 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 133.2 MB. Free memory was 107.7 MB in the beginning and 107.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:43:36,666 INFO L168 Benchmark]: CACSL2BoogieTranslator took 470.05 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 88.9 MB in the beginning and 172.1 MB in the end (delta: -83.2 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:43:36,669 INFO L168 Benchmark]: Boogie Preprocessor took 60.89 ms. Allocated memory is still 199.8 MB. Free memory was 172.1 MB in the beginning and 169.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:43:36,670 INFO L168 Benchmark]: RCFGBuilder took 676.03 ms. Allocated memory is still 199.8 MB. Free memory was 169.0 MB in the beginning and 135.0 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. [2019-09-10 01:43:36,671 INFO L168 Benchmark]: TraceAbstraction took 728.79 ms. Allocated memory is still 199.8 MB. Free memory was 135.0 MB in the beginning and 99.2 MB in the end (delta: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. [2019-09-10 01:43:36,681 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 133.2 MB. Free memory was 107.7 MB in the beginning and 107.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 470.05 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 88.9 MB in the beginning and 172.1 MB in the end (delta: -83.2 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.89 ms. Allocated memory is still 199.8 MB. Free memory was 172.1 MB in the beginning and 169.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 676.03 ms. Allocated memory is still 199.8 MB. Free memory was 169.0 MB in the beginning and 135.0 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 728.79 ms. Allocated memory is still 199.8 MB. Free memory was 135.0 MB in the beginning and 99.2 MB in the end (delta: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 175]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of bitwiseAnd at line 39, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [\old(one_fmod)=2, \old(Zero_fmod)=3, \old(Zero_fmod)=7, one_fmod=1, Zero_fmod={841:0}] [L169] double x = __VERIFIER_nondet_double(); [L170] double y = 0.0; VAL [one_fmod=1, x=0, y=0, Zero_fmod={841:0}] [L171] CALL, EXPR fmod_double(x, y) VAL [\old(x)=0, \old(y)=0, one_fmod=1, Zero_fmod={841:0}] [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; VAL [\old(x)=0, \old(y)=0, one_fmod=1, x=0, y=0, Zero_fmod={841:0}] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff VAL [\old(x)=0, \old(y)=0, lx=25, ly=18, one_fmod=1, sx=1235, x=0, y=0, Zero_fmod={841:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); VAL [\old(x)=0, \old(y)=0, \result=0, hx=0, lx=25, ly=18, one_fmod=1, sx=1235, x=0, y=0, Zero_fmod={841:0}] [L171] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=0, one_fmod=1, x=0, y=0, Zero_fmod={841:0}] [L171] double res = fmod_double(x, y); [L174] CALL, EXPR isnan_double(res) VAL [\old(x)=0, one_fmod=1, Zero_fmod={841:0}] [L16] return x != x; VAL [\old(x)=0, \result=0, one_fmod=1, x=0, Zero_fmod={841:0}] [L174] RET, EXPR isnan_double(res) VAL [isnan_double(res)=0, one_fmod=1, res=0, x=0, y=0, Zero_fmod={841:0}] [L174] COND TRUE !isnan_double(res) [L175] __VERIFIER_error() VAL [one_fmod=1, res=0, x=0, y=0, Zero_fmod={841:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 68 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 91 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...