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_1300.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:43:45,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:43:45,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:43:45,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-10 01:43:45,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:43:45,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:43:45,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:43:45,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:43:45,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:43:45,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:43:45,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:43:45,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:43:45,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:43:45,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:43:45,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:43:45,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:43:45,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-10 01:43:45,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:43:45,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:43:45,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:43:45,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:43:46,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:43:46,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:43:46,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:43:46,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:43:46,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:43:46,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:43:46,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:43:46,004 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 01:43:46,019 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:43:46,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:43:46,019 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:43:46,020 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:43:46,020 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:43:46,020 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:43:46,021 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:43:46,021 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:43:46,021 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:43:46,021 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:43:46,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:43:46,022 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:43:46,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:43:46,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:43:46,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:43:46,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:43:46,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:43:46,023 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:43:46,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:43:46,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:43:46,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:43:46,024 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:43:46,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:43:46,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:43:46,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:43:46,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:43:46,025 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:43:46,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:43:46,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:43:46,026 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:43:46,058 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:43:46,072 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:43:46,078 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:43:46,079 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:43:46,080 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:43:46,081 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1300.c [2019-09-10 01:43:46,155 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c25b148fd/dad55ae7766446d581b42f4b1c5b0b6d/FLAGd5aa64e76 [2019-09-10 01:43:46,654 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:43:46,655 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1300.c [2019-09-10 01:43:46,663 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c25b148fd/dad55ae7766446d581b42f4b1c5b0b6d/FLAGd5aa64e76 [2019-09-10 01:43:47,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c25b148fd/dad55ae7766446d581b42f4b1c5b0b6d [2019-09-10 01:43:47,021 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:43:47,023 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:43:47,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:43:47,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:43:47,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:43:47,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:43:47" (1/1) ... [2019-09-10 01:43:47,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18e8e6dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:47, skipping insertion in model container [2019-09-10 01:43:47,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:43:47" (1/1) ... [2019-09-10 01:43:47,045 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:43:47,066 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:43:47,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:43:47,256 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:43:47,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:43:47,390 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:43:47,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:47 WrapperNode [2019-09-10 01:43:47,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:43:47,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:43:47,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:43:47,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:43:47,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:47" (1/1) ... [2019-09-10 01:43:47,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:47" (1/1) ... [2019-09-10 01:43:47,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:47" (1/1) ... [2019-09-10 01:43:47,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:47" (1/1) ... [2019-09-10 01:43:47,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:47" (1/1) ... [2019-09-10 01:43:47,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:47" (1/1) ... [2019-09-10 01:43:47,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:47" (1/1) ... [2019-09-10 01:43:47,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:43:47,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:43:47,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:43:47,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:43:47,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:47" (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 01:43:47,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:43:47,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:43:47,488 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2019-09-10 01:43:47,488 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2019-09-10 01:43:47,488 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2019-09-10 01:43:47,488 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:43:47,488 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:43:47,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-10 01:43:47,489 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2019-09-10 01:43:47,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 01:43:47,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-10 01:43:47,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:43:47,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:43:47,490 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2019-09-10 01:43:47,490 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2019-09-10 01:43:47,490 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:43:47,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:43:47,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:43:47,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:43:47,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-10 01:43:47,802 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:43:47,802 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-10 01:43:47,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:43:47 BoogieIcfgContainer [2019-09-10 01:43:47,804 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:43:47,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:43:47,805 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:43:47,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:43:47,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:43:47" (1/3) ... [2019-09-10 01:43:47,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c9d568c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:43:47, skipping insertion in model container [2019-09-10 01:43:47,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:47" (2/3) ... [2019-09-10 01:43:47,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c9d568c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:43:47, skipping insertion in model container [2019-09-10 01:43:47,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:43:47" (3/3) ... [2019-09-10 01:43:47,816 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1300.c [2019-09-10 01:43:47,836 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:43:47,863 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:43:47,891 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:43:47,921 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:43:47,921 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:43:47,921 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:43:47,921 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:43:47,921 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:43:47,922 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:43:47,922 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:43:47,922 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:43:47,939 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-09-10 01:43:47,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-09-10 01:43:47,950 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:43:47,951 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, 1] [2019-09-10 01:43:47,954 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:43:47,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:43:47,961 INFO L82 PathProgramCache]: Analyzing trace with hash 604225091, now seen corresponding path program 1 times [2019-09-10 01:43:47,963 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:43:48,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:43:48,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:43:48,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:43:48,008 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:43:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:43:48,203 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 01:43:48,205 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:43:48,205 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 01:43:48,205 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:43:48,210 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 01:43:48,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 01:43:48,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 01:43:48,226 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2019-09-10 01:43:48,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:43:48,264 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2019-09-10 01:43:48,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 01:43:48,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-09-10 01:43:48,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:43:48,276 INFO L225 Difference]: With dead ends: 36 [2019-09-10 01:43:48,276 INFO L226 Difference]: Without dead ends: 30 [2019-09-10 01:43:48,278 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 01:43:48,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-09-10 01:43:48,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-09-10 01:43:48,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-09-10 01:43:48,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 29 transitions. [2019-09-10 01:43:48,318 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 29 transitions. Word has length 24 [2019-09-10 01:43:48,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:43:48,318 INFO L475 AbstractCegarLoop]: Abstraction has 30 states and 29 transitions. [2019-09-10 01:43:48,319 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 01:43:48,319 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2019-09-10 01:43:48,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-09-10 01:43:48,320 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:43:48,320 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, 1, 1, 1, 1, 1, 1] [2019-09-10 01:43:48,321 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:43:48,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:43:48,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1020352620, now seen corresponding path program 1 times [2019-09-10 01:43:48,322 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:43:48,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:43:48,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:43:48,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:43:48,324 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:43:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:43:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:43:48,631 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 01:43:48,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:43:48 BoogieIcfgContainer [2019-09-10 01:43:48,683 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:43:48,686 INFO L168 Benchmark]: Toolchain (without parser) took 1662.05 ms. Allocated memory was 142.6 MB in the beginning and 201.9 MB in the end (delta: 59.2 MB). Free memory was 89.0 MB in the beginning and 123.0 MB in the end (delta: -34.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:43:48,688 INFO L168 Benchmark]: CDTParser took 1.18 ms. Allocated memory is still 142.6 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:43:48,691 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.53 ms. Allocated memory was 142.6 MB in the beginning and 201.9 MB in the end (delta: 59.2 MB). Free memory was 88.7 MB in the beginning and 179.0 MB in the end (delta: -90.2 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:43:48,694 INFO L168 Benchmark]: Boogie Preprocessor took 40.37 ms. Allocated memory is still 201.9 MB. Free memory was 179.0 MB in the beginning and 176.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:43:48,694 INFO L168 Benchmark]: RCFGBuilder took 372.32 ms. Allocated memory is still 201.9 MB. Free memory was 176.8 MB in the beginning and 157.9 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2019-09-10 01:43:48,695 INFO L168 Benchmark]: TraceAbstraction took 878.36 ms. Allocated memory is still 201.9 MB. Free memory was 157.9 MB in the beginning and 123.0 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. [2019-09-10 01:43:48,705 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.18 ms. Allocated memory is still 142.6 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 366.53 ms. Allocated memory was 142.6 MB in the beginning and 201.9 MB in the end (delta: 59.2 MB). Free memory was 88.7 MB in the beginning and 179.0 MB in the end (delta: -90.2 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.37 ms. Allocated memory is still 201.9 MB. Free memory was 179.0 MB in the beginning and 176.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 372.32 ms. Allocated memory is still 201.9 MB. Free memory was 176.8 MB in the beginning and 157.9 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 878.36 ms. Allocated memory is still 201.9 MB. Free memory was 157.9 MB in the beginning and 123.0 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 59]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 25, overapproximation of bitwiseAnd at line 40. Possible FailurePath: [L50] double x = __VERIFIER_nondet_double(); [L53] CALL, EXPR isinf_double(x) VAL [\old(x)=8589934595] [L17] __int32_t hx, lx; VAL [\old(x)=8589934595, x=8589934595] [L19] ieee_double_shape_type ew_u; [L20] ew_u.value = (x) [L21] EXPR ew_u.parts.msw [L21] (hx) = ew_u.parts.msw [L22] EXPR ew_u.parts.lsw [L22] (lx) = ew_u.parts.lsw [L24] hx &= 0x7fffffff [L25] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L26] hx = 0x7ff00000 - hx [L27] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=8589934595, \result=0, hx=2146435073, lx=-2, x=8589934595] [L53] RET, EXPR isinf_double(x) VAL [isinf_double(x)=0, x=8589934595] [L53] !isinf_double(x) && !isnan_double(x) VAL [!isinf_double(x) && !isnan_double(x)=1, isinf_double(x)=0, x=8589934595] [L53] CALL, EXPR isnan_double(x) VAL [\old(x)=8589934595] [L31] return x != x; VAL [\old(x)=8589934595, \result=0, x=8589934595] [L53] RET, EXPR isnan_double(x) VAL [!isinf_double(x) && !isnan_double(x)=1, isinf_double(x)=0, isnan_double(x)=0, x=8589934595] [L53] !isinf_double(x) && !isnan_double(x) VAL [!isinf_double(x) && !isnan_double(x)=1, isinf_double(x)=0, isnan_double(x)=0, x=8589934595] [L53] COND TRUE !isinf_double(x) && !isnan_double(x) [L55] CALL, EXPR isfinite_double(x) VAL [\old(x)=8589934595] [L34] __int32_t hx; VAL [\old(x)=8589934595, x=8589934595] [L36] ieee_double_shape_type gh_u; [L37] gh_u.value = (x) [L38] EXPR gh_u.parts.msw [L38] (hx) = gh_u.parts.msw [L40] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=8589934595, \result=0, hx=-4, x=8589934595] [L55] RET, EXPR isfinite_double(x) VAL [isfinite_double(x)=0, x=8589934595] [L55] double res = isfinite_double(x); [L58] COND TRUE res == 0.0 VAL [res=0, x=8589934595] [L59] __VERIFIER_error() VAL [res=0, x=8589934595] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 37 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 0 SDslu, 30 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 552 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...