/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-benchs/nan_double_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-benchs/nan_double_false-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7dc1721e577997f4966a61524053c01b76a6be07 .................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 13:49:03,455 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:49:03,457 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:49:03,470 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:49:03,470 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:49:03,477 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:49:03,478 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:49:03,481 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:49:03,485 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:49:03,489 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:49:03,490 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:49:03,492 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:49:03,494 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:49:03,496 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:49:03,498 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:49:03,498 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:49:03,499 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:49:03,506 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:49:03,512 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:49:03,513 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:49:03,517 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:49:03,518 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:49:03,521 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:49:03,523 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:49:03,524 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:49:03,525 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:49:03,526 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:49:03,526 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:49:03,530 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:49:03,535 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:49:03,535 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:49:03,538 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:49:03,538 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:49:03,538 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:49:03,539 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:49:03,540 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:49:03,540 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 13:49:03,555 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:49:03,555 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:49:03,556 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:49:03,556 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:49:03,557 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:49:03,557 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:49:03,557 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:49:03,557 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:49:03,558 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:49:03,558 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 13:49:03,558 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:49:03,558 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:49:03,558 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:49:03,558 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:49:03,559 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:49:03,559 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:49:03,559 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:49:03,559 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:49:03,559 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:49:03,559 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:49:03,560 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:49:03,560 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:49:03,560 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:49:03,560 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:49:03,560 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:49:03,561 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:49:03,561 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 13:49:03,561 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:49:03,561 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 13:49:03,561 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dc1721e577997f4966a61524053c01b76a6be07 [2018-09-20 13:49:03,627 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:49:03,644 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:49:03,648 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:49:03,650 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:49:03,651 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:49:03,652 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/nan_double_false-unreach-call_true-termination.c [2018-09-20 13:49:03,911 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55fa43c0a/480f364668e142cd9620a2cbe2cdd7ea/FLAG4da062a71 [2018-09-20 13:49:04,155 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:49:04,156 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/nan_double_false-unreach-call_true-termination.c [2018-09-20 13:49:04,164 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55fa43c0a/480f364668e142cd9620a2cbe2cdd7ea/FLAG4da062a71 [2018-09-20 13:49:04,182 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55fa43c0a/480f364668e142cd9620a2cbe2cdd7ea [2018-09-20 13:49:04,186 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:49:04,189 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:49:04,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:49:04,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:49:04,197 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:49:04,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:49:04" (1/1) ... [2018-09-20 13:49:04,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41ce139c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:04, skipping insertion in model container [2018-09-20 13:49:04,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:49:04" (1/1) ... [2018-09-20 13:49:04,217 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:49:04,419 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:49:04,441 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:49:04,445 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:49:04,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:04 WrapperNode [2018-09-20 13:49:04,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:49:04,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:49:04,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:49:04,461 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:49:04,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:04" (1/1) ... [2018-09-20 13:49:04,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:04" (1/1) ... [2018-09-20 13:49:04,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:04" (1/1) ... [2018-09-20 13:49:04,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:04" (1/1) ... [2018-09-20 13:49:04,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:04" (1/1) ... [2018-09-20 13:49:04,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:04" (1/1) ... [2018-09-20 13:49:04,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:04" (1/1) ... [2018-09-20 13:49:04,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:49:04,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:49:04,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:49:04,496 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:49:04,501 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:04" (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 [2018-09-20 13:49:04,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:49:04,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:49:04,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-20 13:49:04,578 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:49:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:49:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-20 13:49:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-20 13:49:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:49:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:49:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:49:04,958 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:49:04,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:49:04 BoogieIcfgContainer [2018-09-20 13:49:04,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:49:04,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:49:04,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:49:04,964 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:49:04,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:49:04" (1/3) ... [2018-09-20 13:49:04,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bc6b2ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:49:04, skipping insertion in model container [2018-09-20 13:49:04,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:49:04" (2/3) ... [2018-09-20 13:49:04,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bc6b2ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:49:04, skipping insertion in model container [2018-09-20 13:49:04,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:49:04" (3/3) ... [2018-09-20 13:49:04,967 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_double_false-unreach-call_true-termination.c [2018-09-20 13:49:04,978 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:49:04,987 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:49:05,049 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:49:05,050 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:49:05,050 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:49:05,050 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:49:05,050 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:49:05,051 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:49:05,051 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:49:05,051 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:49:05,051 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:49:05,071 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-09-20 13:49:05,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-20 13:49:05,077 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:49:05,078 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:49:05,081 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:49:05,087 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-09-20 13:49:05,089 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 13:49:05,090 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 13:49:05,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:49:05,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:49:05,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:49:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:49:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:49:05,204 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 13:49:05,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:49:05 BoogieIcfgContainer [2018-09-20 13:49:05,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:49:05,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:49:05,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:49:05,225 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:49:05,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:49:04" (3/4) ... [2018-09-20 13:49:05,228 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-09-20 13:49:05,270 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 13:49:05,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:49:05,271 INFO L168 Benchmark]: Toolchain (without parser) took 1084.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -151.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:49:05,273 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:49:05,274 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.48 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:49:05,275 INFO L168 Benchmark]: Boogie Preprocessor took 34.78 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:49:05,275 INFO L168 Benchmark]: RCFGBuilder took 463.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2018-09-20 13:49:05,276 INFO L168 Benchmark]: TraceAbstraction took 264.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2018-09-20 13:49:05,277 INFO L168 Benchmark]: Witness Printer took 45.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:49:05,282 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.48 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.78 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 463.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 264.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * Witness Printer took 45.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] double x; [L11] x = __VERIFIER_nondet_double() [L13] CALL __VERIFIER_assert(x==x) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...