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_0730b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:42:45,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:42:45,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:42:45,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:42:45,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:42:45,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:42:45,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:42:45,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:42:45,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:42:45,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:42:45,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:42:45,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:42:45,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:42:45,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:42:45,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:42:45,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:42:45,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:42:45,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:42:45,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:42:45,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:42:45,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:42:45,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:42:45,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:42:45,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:42:45,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-10 01:42:45,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:42:45,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:42:45,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:42:45,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:42:45,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:42:45,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:42:45,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:42:45,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:42:45,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:42:45,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:42:45,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:42:45,449 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 01:42:45,464 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:42:45,464 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:42:45,464 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:42:45,464 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:42:45,465 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:42:45,465 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:42:45,466 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:42:45,466 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:42:45,466 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:42:45,466 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:42:45,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:42:45,467 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:42:45,467 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:42:45,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:42:45,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:42:45,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:42:45,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:42:45,468 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:42:45,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:42:45,469 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:42:45,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:42:45,469 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:42:45,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:42:45,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:42:45,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:42:45,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:42:45,470 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:42:45,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:42:45,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:42:45,471 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:42:45,499 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:42:45,513 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:42:45,519 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:42:45,521 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:42:45,521 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:42:45,522 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0730b.c [2019-09-10 01:42:45,597 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5b128c65/f8089d1834a241eb815270786db839f7/FLAG087605305 [2019-09-10 01:42:46,109 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:42:46,110 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0730b.c [2019-09-10 01:42:46,117 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5b128c65/f8089d1834a241eb815270786db839f7/FLAG087605305 [2019-09-10 01:42:46,395 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5b128c65/f8089d1834a241eb815270786db839f7 [2019-09-10 01:42:46,405 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:42:46,406 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:42:46,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:42:46,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:42:46,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:42:46,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:42:46" (1/1) ... [2019-09-10 01:42:46,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51b300f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:46, skipping insertion in model container [2019-09-10 01:42:46,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:42:46" (1/1) ... [2019-09-10 01:42:46,422 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:42:46,445 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:42:46,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:42:46,637 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:42:46,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:42:46,803 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:42:46,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:46 WrapperNode [2019-09-10 01:42:46,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:42:46,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:42:46,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:42:46,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:42:46,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:46" (1/1) ... [2019-09-10 01:42:46,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:46" (1/1) ... [2019-09-10 01:42:46,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:46" (1/1) ... [2019-09-10 01:42:46,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:46" (1/1) ... [2019-09-10 01:42:46,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:46" (1/1) ... [2019-09-10 01:42:46,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:46" (1/1) ... [2019-09-10 01:42:46,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:46" (1/1) ... [2019-09-10 01:42:46,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:42:46,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:42:46,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:42:46,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:42:46,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:46" (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 01:42:46,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:42:46,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:42:46,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2019-09-10 01:42:46,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2019-09-10 01:42:46,925 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:42:46,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:42:46,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-10 01:42:46,925 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2019-09-10 01:42:46,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 01:42:46,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-10 01:42:46,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:42:46,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:42:46,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:42:46,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-10 01:42:46,926 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2019-09-10 01:42:46,927 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:42:46,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:42:46,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:42:47,485 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:42:47,485 INFO L283 CfgBuilder]: Removed 10 assume(true) statements. [2019-09-10 01:42:47,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:42:47 BoogieIcfgContainer [2019-09-10 01:42:47,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:42:47,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:42:47,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:42:47,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:42:47,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:42:46" (1/3) ... [2019-09-10 01:42:47,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4b796d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:42:47, skipping insertion in model container [2019-09-10 01:42:47,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:46" (2/3) ... [2019-09-10 01:42:47,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4b796d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:42:47, skipping insertion in model container [2019-09-10 01:42:47,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:42:47" (3/3) ... [2019-09-10 01:42:47,495 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730b.c [2019-09-10 01:42:47,504 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:42:47,511 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:42:47,527 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:42:47,554 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:42:47,555 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:42:47,555 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:42:47,555 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:42:47,555 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:42:47,555 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:42:47,556 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:42:47,556 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:42:47,570 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2019-09-10 01:42:47,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-10 01:42:47,580 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:42:47,581 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:42:47,583 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:42:47,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:42:47,588 INFO L82 PathProgramCache]: Analyzing trace with hash 614343824, now seen corresponding path program 1 times [2019-09-10 01:42:47,590 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:42:47,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:42:47,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:42:47,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:42:47,634 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:42:47,710 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:42:47,711 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:42:47,711 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 01:42:47,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:42:47,726 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-10 01:42:47,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:42:47,758 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-10 01:42:47,761 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 01:42:47,761 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:42:47,761 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 01:42:47,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:42:47,788 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 01:42:47,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:42:47,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 14 conjunts are in the unsatisfiable core [2019-09-10 01:42:47,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 01:42:47,962 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 01:42:47,963 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 01:42:47,979 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 01:42:48,517 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 01:42:48,524 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:42:48,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 10 [2019-09-10 01:42:48,525 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:42:48,530 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 01:42:48,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 01:42:48,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-09-10 01:42:48,550 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 7 states. [2019-09-10 01:42:48,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:42:48,760 INFO L93 Difference]: Finished difference Result 67 states and 87 transitions. [2019-09-10 01:42:48,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 01:42:48,761 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2019-09-10 01:42:48,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:42:48,773 INFO L225 Difference]: With dead ends: 67 [2019-09-10 01:42:48,773 INFO L226 Difference]: Without dead ends: 63 [2019-09-10 01:42:48,775 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2019-09-10 01:42:48,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-09-10 01:42:48,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2019-09-10 01:42:48,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-09-10 01:42:48,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 83 transitions. [2019-09-10 01:42:48,814 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 83 transitions. Word has length 16 [2019-09-10 01:42:48,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:42:48,814 INFO L475 AbstractCegarLoop]: Abstraction has 63 states and 83 transitions. [2019-09-10 01:42:48,815 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 01:42:48,815 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 83 transitions. [2019-09-10 01:42:48,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-10 01:42:48,816 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:42:48,816 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:42:48,817 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:42:48,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:42:48,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1090927372, now seen corresponding path program 1 times [2019-09-10 01:42:48,818 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:42:48,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:42:48,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:42:48,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:42:48,819 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:42:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:42:48,994 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 01:42:48,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:42:48,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 01:42:48,995 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:42:48,996 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 01:42:48,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 01:42:48,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 01:42:48,997 INFO L87 Difference]: Start difference. First operand 63 states and 83 transitions. Second operand 7 states. [2019-09-10 01:42:49,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:42:49,117 INFO L93 Difference]: Finished difference Result 67 states and 87 transitions. [2019-09-10 01:42:49,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 01:42:49,119 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-09-10 01:42:49,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:42:49,121 INFO L225 Difference]: With dead ends: 67 [2019-09-10 01:42:49,121 INFO L226 Difference]: Without dead ends: 67 [2019-09-10 01:42:49,122 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-09-10 01:42:49,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2019-09-10 01:42:49,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2019-09-10 01:42:49,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-09-10 01:42:49,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 83 transitions. [2019-09-10 01:42:49,135 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 83 transitions. Word has length 18 [2019-09-10 01:42:49,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:42:49,135 INFO L475 AbstractCegarLoop]: Abstraction has 63 states and 83 transitions. [2019-09-10 01:42:49,135 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 01:42:49,136 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 83 transitions. [2019-09-10 01:42:49,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-10 01:42:49,137 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:42:49,137 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:42:49,137 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:42:49,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:42:49,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1260290127, now seen corresponding path program 1 times [2019-09-10 01:42:49,138 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:42:49,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:42:49,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:42:49,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:42:49,141 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:42:49,162 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Infinite/NaN value at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:239) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:215) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:371) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Infinite/NaN value at de.uni_freiburg.informatik.ultimate.logic.Theory.constant(Theory.java:416) at de.uni_freiburg.informatik.ultimate.logic.Rational.toTerm(Rational.java:918) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.SMTAffineTerm.parseConstant(SMTAffineTerm.java:140) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.SMTAffineTerm.(SMTAffineTerm.java:86) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.Clausifier.createEqualityProxy(Clausifier.java:1432) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.Clausifier$CollectLiterals.perform(Clausifier.java:712) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.Clausifier.run(Clausifier.java:1669) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.Clausifier.addFormula(Clausifier.java:1733) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.assertTerm(SMTInterpol.java:644) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.managedscript.ManagedScript.assertTerm(ManagedScript.java:136) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:193) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertNonCall(AnnotateAndAssertCodeBlocks.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:214) ... 26 more [2019-09-10 01:42:49,174 INFO L168 Benchmark]: Toolchain (without parser) took 2767.05 ms. Allocated memory was 136.3 MB in the beginning and 224.4 MB in the end (delta: 88.1 MB). Free memory was 87.8 MB in the beginning and 176.4 MB in the end (delta: -88.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 01:42:49,175 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.3 MB. Free memory was 106.3 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:42:49,176 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.42 ms. Allocated memory was 136.3 MB in the beginning and 199.8 MB in the end (delta: 63.4 MB). Free memory was 87.6 MB in the beginning and 175.0 MB in the end (delta: -87.4 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:42:49,177 INFO L168 Benchmark]: Boogie Preprocessor took 63.89 ms. Allocated memory is still 199.8 MB. Free memory was 175.0 MB in the beginning and 172.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-09-10 01:42:49,178 INFO L168 Benchmark]: RCFGBuilder took 618.61 ms. Allocated memory is still 199.8 MB. Free memory was 172.6 MB in the beginning and 143.1 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2019-09-10 01:42:49,179 INFO L168 Benchmark]: TraceAbstraction took 1683.96 ms. Allocated memory was 199.8 MB in the beginning and 224.4 MB in the end (delta: 24.6 MB). Free memory was 143.1 MB in the beginning and 176.4 MB in the end (delta: -33.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 01:42:49,183 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 136.3 MB. Free memory was 106.3 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 396.42 ms. Allocated memory was 136.3 MB in the beginning and 199.8 MB in the end (delta: 63.4 MB). Free memory was 87.6 MB in the beginning and 175.0 MB in the end (delta: -87.4 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 63.89 ms. Allocated memory is still 199.8 MB. Free memory was 175.0 MB in the beginning and 172.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 618.61 ms. Allocated memory is still 199.8 MB. Free memory was 172.6 MB in the beginning and 143.1 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1683.96 ms. Allocated memory was 199.8 MB in the beginning and 224.4 MB in the end (delta: 24.6 MB). Free memory was 143.1 MB in the beginning and 176.4 MB in the end (delta: -33.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Infinite/NaN value de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Infinite/NaN value: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:239) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...