/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0970b_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 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-newlib/float_req_bl_0970b_true-unreach-call.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 43a504f2a78cd97f2f59239768b095c018a8cdcb --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ............................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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-newlib/float_req_bl_0970b_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 43a504f2a78cd97f2f59239768b095c018a8cdcb --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false .................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:36:45,323 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:36:45,325 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:36:45,337 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:36:45,338 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:36:45,339 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:36:45,340 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:36:45,342 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:36:45,343 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:36:45,344 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:36:45,345 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:36:45,346 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:36:45,346 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:36:45,347 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:36:45,349 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:36:45,349 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:36:45,350 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:36:45,352 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:36:45,354 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:36:45,356 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:36:45,357 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:36:45,358 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:36:45,361 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:36:45,361 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:36:45,361 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:36:45,362 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:36:45,363 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:36:45,364 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:36:45,365 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:36:45,366 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:36:45,366 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:36:45,367 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:36:45,367 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:36:45,367 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:36:45,368 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:36:45,369 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:36:45,369 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:36:45,395 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:36:45,395 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:36:45,396 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:36:45,396 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:36:45,400 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:36:45,400 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:36:45,400 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:36:45,400 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:36:45,400 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:36:45,401 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:36:45,401 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:36:45,401 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:36:45,401 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:36:45,401 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:36:45,402 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:36:45,403 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:36:45,403 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:36:45,403 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:36:45,403 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:36:45,403 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:36:45,403 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:36:45,404 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:36:45,404 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:36:45,404 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:36:45,404 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:36:45,404 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:36:45,407 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:36:45,407 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:36:45,407 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:36:45,407 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 -> 43a504f2a78cd97f2f59239768b095c018a8cdcb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:36:45,464 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:36:45,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:36:45,486 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:36:45,489 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:36:45,490 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:36:45,491 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0970b_true-unreach-call.c [2018-09-21 18:36:45,878 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/563a6ce98/72ac131e694347f7a6f91abacf79c83b/FLAGc1ca69e3c [2018-09-21 18:36:46,050 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:36:46,051 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0970b_true-unreach-call.c [2018-09-21 18:36:46,071 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/563a6ce98/72ac131e694347f7a6f91abacf79c83b/FLAGc1ca69e3c [2018-09-21 18:36:46,086 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/563a6ce98/72ac131e694347f7a6f91abacf79c83b [2018-09-21 18:36:46,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:36:46,093 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:36:46,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:36:46,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:36:46,102 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:36:46,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:36:46" (1/1) ... [2018-09-21 18:36:46,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef5c2d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46, skipping insertion in model container [2018-09-21 18:36:46,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:36:46" (1/1) ... [2018-09-21 18:36:46,119 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:36:46,400 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:36:46,426 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:36:46,471 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:36:46,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46 WrapperNode [2018-09-21 18:36:46,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:36:46,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:36:46,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:36:46,511 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:36:46,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46" (1/1) ... [2018-09-21 18:36:46,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46" (1/1) ... [2018-09-21 18:36:46,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46" (1/1) ... [2018-09-21 18:36:46,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46" (1/1) ... [2018-09-21 18:36:46,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46" (1/1) ... [2018-09-21 18:36:46,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46" (1/1) ... [2018-09-21 18:36:46,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46" (1/1) ... [2018-09-21 18:36:46,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:36:46,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:36:46,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:36:46,610 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:36:46,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46" (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 [2018-09-21 18:36:46,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:36:46,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:36:46,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-09-21 18:36:46,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10f [2018-09-21 18:36:46,806 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:36:46,806 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:36:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:36:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:36:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-09-21 18:36:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:36:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:36:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:36:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:36:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:36:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:36:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10f [2018-09-21 18:36:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:36:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:36:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:36:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:36:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:36:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:36:47,702 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:36:47,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:36:47 BoogieIcfgContainer [2018-09-21 18:36:47,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:36:47,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:36:47,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:36:47,709 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:36:47,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:36:46" (1/3) ... [2018-09-21 18:36:47,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77dd8453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:36:47, skipping insertion in model container [2018-09-21 18:36:47,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46" (2/3) ... [2018-09-21 18:36:47,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77dd8453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:36:47, skipping insertion in model container [2018-09-21 18:36:47,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:36:47" (3/3) ... [2018-09-21 18:36:47,714 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b_true-unreach-call.c [2018-09-21 18:36:47,724 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:36:47,733 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:36:47,772 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:36:47,772 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:36:47,772 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:36:47,773 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:36:47,773 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:36:47,773 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:36:47,773 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:36:47,773 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:36:47,773 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:36:47,798 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states. [2018-09-21 18:36:47,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-21 18:36:47,814 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:36:47,815 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:36:47,817 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:36:47,823 INFO L82 PathProgramCache]: Analyzing trace with hash -939730018, now seen corresponding path program 1 times [2018-09-21 18:36:47,826 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:36:47,826 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:36:47,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:36:47,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:36:47,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:36:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:36:48,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:36:48,004 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:36:48,005 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:36:48,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:36:48,022 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:36:48,023 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:36:48,025 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 2 states. [2018-09-21 18:36:48,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:36:48,049 INFO L93 Difference]: Finished difference Result 108 states and 122 transitions. [2018-09-21 18:36:48,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:36:48,051 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-21 18:36:48,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:36:48,064 INFO L225 Difference]: With dead ends: 108 [2018-09-21 18:36:48,065 INFO L226 Difference]: Without dead ends: 104 [2018-09-21 18:36:48,067 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:36:48,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-09-21 18:36:48,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-09-21 18:36:48,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-09-21 18:36:48,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2018-09-21 18:36:48,119 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 21 [2018-09-21 18:36:48,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:36:48,119 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2018-09-21 18:36:48,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:36:48,120 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2018-09-21 18:36:48,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-21 18:36:48,122 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:36:48,122 INFO L376 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, 1] [2018-09-21 18:36:48,122 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:36:48,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1979325046, now seen corresponding path program 1 times [2018-09-21 18:36:48,123 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:36:48,123 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:36:48,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:36:48,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:36:48,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:36:48,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:36:48,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:36:48,274 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:36:48,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:36:48 BoogieIcfgContainer [2018-09-21 18:36:48,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:36:48,330 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:36:48,330 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:36:48,331 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:36:48,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:36:47" (3/4) ... [2018-09-21 18:36:48,337 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:36:48,337 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:36:48,338 INFO L168 Benchmark]: Toolchain (without parser) took 2247.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -142.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:48,340 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-09-21 18:36:48,341 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.52 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:48,342 INFO L168 Benchmark]: Boogie Preprocessor took 98.77 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 935.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:48,343 INFO L168 Benchmark]: RCFGBuilder took 1093.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:48,344 INFO L168 Benchmark]: TraceAbstraction took 625.81 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: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:48,345 INFO L168 Benchmark]: Witness Printer took 6.55 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. [2018-09-21 18:36:48,351 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 415.52 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 98.77 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 935.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1093.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 625.81 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: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * Witness Printer took 6.55 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: - UnprovableResult [Line: 159]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 145, overapproximation of someBinaryArithmeticFLOAToperation at line 117, overapproximation of bitwiseAnd at line 116. Possible FailurePath: [L12-L16] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L18] static const float zero_log = 0.0; [L98-L101] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L103] static const float zero = 0.0; VAL [\old(ivln10_log10)=6442450947, \old(Lg1_log)=6442450963, \old(Lg2_log)=6442450966, \old(Lg3_log)=6442450946, \old(Lg4_log)=6442450951, \old(Lg5_log)=6442450952, \old(Lg6_log)=6442450961, \old(Lg7_log)=6442450958, \old(ln2_hi_log)=6442450949, \old(ln2_lo_log)=6442450953, \old(log10_2hi_log10)=6442450956, \old(log10_2lo_log10)=6442450960, \old(two25_log)=6442450957, \old(two25_log10)=6442450959, \old(zero)=6442450964, \old(zero_log)=6442450955, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L154] float x = -1.0f / 0.0f; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L155] CALL, EXPR __ieee754_log10f(x) VAL [\old(x)=6442450962, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L106] float y, z; [L107] __int32_t i, k, hx; VAL [\old(x)=6442450962, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450962, zero=0, zero_log=0] [L110] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450962, gf_u={6442450965:0}, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450962, zero=0, zero_log=0] [L111] FCALL gf_u.value = (x) VAL [\old(x)=6442450962, gf_u={6442450965:0}, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450962, zero=0, zero_log=0] [L112] EXPR, FCALL gf_u.word VAL [\old(x)=6442450962, gf_u={6442450965:0}, gf_u.word=6442450944, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450962, zero=0, zero_log=0] [L112] (hx) = gf_u.word VAL [\old(x)=6442450962, gf_u={6442450965:0}, gf_u.word=6442450944, hx=-2147483648, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450962, zero=0, zero_log=0] [L112] FCALL (hx) = gf_u.word VAL [(hx) = gf_u.word=6442450950, \old(x)=6442450962, gf_u={6442450965:0}, gf_u.word=6442450944, hx=-2147483648, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450962, zero=0, zero_log=0] [L113] COND FALSE !(0) VAL [\old(x)=6442450962, hx=-2147483648, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450962, zero=0, zero_log=0] [L115] k = 0 VAL [\old(x)=6442450962, hx=-2147483648, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450962, zero=0, zero_log=0] [L116] COND TRUE ((hx & 0x7fffffff) == 0) [L117] RET return -two25_log10 / zero; VAL [\old(x)=6442450962, hx=-2147483648, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450962, zero=0, zero_log=0] [L155] EXPR __ieee754_log10f(x) VAL [__ieee754_log10f(x)=6442450945, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450962, zero=0, zero_log=0] [L155] float res = __ieee754_log10f(x); [L158] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450945, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L145] RET return x != x; VAL [\old(x)=6442450945, \result=0, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450945, zero=0, zero_log=0] [L158] EXPR isnan_float(res) VAL [isnan_float(res)=0, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=6442450945, two25_log=33554432, two25_log10=33554432, x=6442450962, zero=0, zero_log=0] [L158] COND TRUE !isnan_float(res) [L159] __VERIFIER_error() VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=6442450945, two25_log=33554432, two25_log10=33554432, x=6442450962, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 108 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 122 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 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... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:36:50,651 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:36:50,653 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:36:50,665 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:36:50,666 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:36:50,667 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:36:50,672 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:36:50,674 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:36:50,679 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:36:50,680 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:36:50,683 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:36:50,684 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:36:50,685 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:36:50,686 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:36:50,690 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:36:50,691 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:36:50,692 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:36:50,696 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:36:50,704 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:36:50,706 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:36:50,709 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:36:50,710 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:36:50,713 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:36:50,713 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:36:50,713 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:36:50,714 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:36:50,715 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:36:50,716 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:36:50,717 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:36:50,718 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:36:50,719 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:36:50,719 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:36:50,720 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:36:50,720 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:36:50,722 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:36:50,722 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:36:50,723 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:36:50,746 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:36:50,747 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:36:50,748 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:36:50,748 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:36:50,748 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:36:50,751 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:36:50,751 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:36:50,751 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:36:50,752 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:36:50,752 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:36:50,752 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:36:50,752 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:36:50,752 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:36:50,752 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:36:50,753 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:36:50,753 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:36:50,753 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:36:50,753 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:36:50,753 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:36:50,756 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:36:50,756 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:36:50,757 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:36:50,757 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:36:50,757 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:36:50,757 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:36:50,758 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:36:50,760 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:36:50,760 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:36:50,760 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:36:50,760 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:36:50,761 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:36:50,761 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 -> 43a504f2a78cd97f2f59239768b095c018a8cdcb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:36:50,816 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:36:50,830 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:36:50,839 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:36:50,840 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:36:50,841 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:36:50,842 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0970b_true-unreach-call.c [2018-09-21 18:36:51,214 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a484b8d95/a08e1d004a5143a1bf8a43e04058d6ce/FLAG79bba9418 [2018-09-21 18:36:51,364 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:36:51,364 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0970b_true-unreach-call.c [2018-09-21 18:36:51,374 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a484b8d95/a08e1d004a5143a1bf8a43e04058d6ce/FLAG79bba9418 [2018-09-21 18:36:51,390 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a484b8d95/a08e1d004a5143a1bf8a43e04058d6ce [2018-09-21 18:36:51,395 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:36:51,399 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:36:51,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:36:51,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:36:51,407 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:36:51,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:36:51" (1/1) ... [2018-09-21 18:36:51,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1664520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:51, skipping insertion in model container [2018-09-21 18:36:51,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:36:51" (1/1) ... [2018-09-21 18:36:51,426 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:36:51,764 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:36:51,786 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:36:51,846 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:36:51,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:51 WrapperNode [2018-09-21 18:36:51,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:36:51,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:36:51,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:36:51,891 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:36:51,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:51" (1/1) ... [2018-09-21 18:36:51,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:51" (1/1) ... [2018-09-21 18:36:51,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:51" (1/1) ... [2018-09-21 18:36:51,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:51" (1/1) ... [2018-09-21 18:36:51,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:51" (1/1) ... [2018-09-21 18:36:51,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:51" (1/1) ... [2018-09-21 18:36:51,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:51" (1/1) ... [2018-09-21 18:36:51,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:36:51,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:36:51,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:36:51,976 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:36:51,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:51" (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 [2018-09-21 18:36:52,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:36:52,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:36:52,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-09-21 18:36:52,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10f [2018-09-21 18:36:52,174 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:36:52,174 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:36:52,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:36:52,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:36:52,174 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-09-21 18:36:52,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:36:52,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:36:52,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:36:52,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:36:52,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:36:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:36:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10f [2018-09-21 18:36:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:36:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:36:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:36:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:36:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:36:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:36:52,590 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:52,614 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:53,491 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:53,510 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:37:07,139 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:37:07,156 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:37:09,483 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:37:09,503 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:37:11,615 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:37:11,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:37:11 BoogieIcfgContainer [2018-09-21 18:37:11,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:37:11,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:37:11,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:37:11,620 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:37:11,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:36:51" (1/3) ... [2018-09-21 18:37:11,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41406196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:37:11, skipping insertion in model container [2018-09-21 18:37:11,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:51" (2/3) ... [2018-09-21 18:37:11,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41406196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:37:11, skipping insertion in model container [2018-09-21 18:37:11,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:37:11" (3/3) ... [2018-09-21 18:37:11,625 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b_true-unreach-call.c [2018-09-21 18:37:11,632 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:37:11,640 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:37:11,684 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:37:11,685 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:37:11,685 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:37:11,685 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:37:11,686 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:37:11,686 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:37:11,686 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:37:11,686 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:37:11,686 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:37:11,705 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2018-09-21 18:37:11,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-21 18:37:11,717 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:37:11,721 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:37:11,724 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:37:11,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1720378954, now seen corresponding path program 1 times [2018-09-21 18:37:11,737 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:37:11,738 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 18:37:11,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:37:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:37:12,038 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:37:12,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:37:12,057 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:37:12,074 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:37:12,075 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:37:12,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:37:12,091 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:37:12,091 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:37:12,094 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 2 states. [2018-09-21 18:37:12,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:37:12,116 INFO L93 Difference]: Finished difference Result 107 states and 121 transitions. [2018-09-21 18:37:12,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:37:12,118 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-09-21 18:37:12,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:37:12,132 INFO L225 Difference]: With dead ends: 107 [2018-09-21 18:37:12,132 INFO L226 Difference]: Without dead ends: 103 [2018-09-21 18:37:12,135 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:37:12,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-09-21 18:37:12,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2018-09-21 18:37:12,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-09-21 18:37:12,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2018-09-21 18:37:12,187 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 20 [2018-09-21 18:37:12,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:37:12,187 INFO L480 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2018-09-21 18:37:12,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:37:12,188 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2018-09-21 18:37:12,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-21 18:37:12,189 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:37:12,189 INFO L376 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] [2018-09-21 18:37:12,191 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:37:12,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1235805169, now seen corresponding path program 1 times [2018-09-21 18:37:12,192 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:37:12,192 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-21 18:37:12,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:37:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:37:12,482 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:37:12,637 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:37:12,650 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:37:12,650 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:37:12,674 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:12,752 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:12,753 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:37:12,868 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:37:12,874 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:37:12,875 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:37:12,894 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:12,898 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:12,898 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:37:13,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:37:13,117 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:37:13,134 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:37:13,134 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:37:13,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:37:13,137 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:37:13,137 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:37:13,137 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand 8 states. [2018-09-21 18:37:16,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:37:16,568 INFO L93 Difference]: Finished difference Result 113 states and 126 transitions. [2018-09-21 18:37:16,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:37:16,568 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2018-09-21 18:37:16,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:37:16,572 INFO L225 Difference]: With dead ends: 113 [2018-09-21 18:37:16,572 INFO L226 Difference]: Without dead ends: 111 [2018-09-21 18:37:16,573 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:37:16,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-09-21 18:37:16,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 103. [2018-09-21 18:37:16,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-09-21 18:37:16,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 116 transitions. [2018-09-21 18:37:16,586 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 116 transitions. Word has length 29 [2018-09-21 18:37:16,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:37:16,587 INFO L480 AbstractCegarLoop]: Abstraction has 103 states and 116 transitions. [2018-09-21 18:37:16,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:37:16,587 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 116 transitions. [2018-09-21 18:37:16,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-21 18:37:16,589 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:37:16,589 INFO L376 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, 1] [2018-09-21 18:37:16,589 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:37:16,589 INFO L82 PathProgramCache]: Analyzing trace with hash -92564816, now seen corresponding path program 1 times [2018-09-21 18:37:16,590 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:37:16,590 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 18:37:16,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:37:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:37:16,879 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:37:17,560 WARN L178 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-21 18:37:17,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:37:17,813 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:37:17,830 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:37:17,830 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:37:17,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:37:17,831 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:37:17,831 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:37:17,831 INFO L87 Difference]: Start difference. First operand 103 states and 116 transitions. Second operand 10 states. [2018-09-21 18:37:19,333 WARN L178 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-21 18:37:22,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:37:22,792 INFO L93 Difference]: Finished difference Result 116 states and 129 transitions. [2018-09-21 18:37:22,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-21 18:37:22,793 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2018-09-21 18:37:22,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:37:22,796 INFO L225 Difference]: With dead ends: 116 [2018-09-21 18:37:22,796 INFO L226 Difference]: Without dead ends: 111 [2018-09-21 18:37:22,797 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-09-21 18:37:22,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-09-21 18:37:22,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 103. [2018-09-21 18:37:22,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-09-21 18:37:22,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 115 transitions. [2018-09-21 18:37:22,811 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 115 transitions. Word has length 30 [2018-09-21 18:37:22,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:37:22,811 INFO L480 AbstractCegarLoop]: Abstraction has 103 states and 115 transitions. [2018-09-21 18:37:22,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:37:22,812 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 115 transitions. [2018-09-21 18:37:22,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:37:22,813 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:37:22,813 INFO L376 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, 1, 1] [2018-09-21 18:37:22,814 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:37:22,814 INFO L82 PathProgramCache]: Analyzing trace with hash 202093739, now seen corresponding path program 1 times [2018-09-21 18:37:22,814 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:37:22,816 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-21 18:37:22,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:37:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:37:22,919 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:37:22,958 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:37:22,963 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:37:22,963 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:37:22,967 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:22,983 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:22,984 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:37:23,012 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:37:23,016 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:37:23,016 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:37:23,021 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:23,024 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:23,024 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:37:23,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:37:23,137 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:37:23,148 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:37:23,149 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:37:23,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:37:23,149 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:37:23,150 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:37:23,150 INFO L87 Difference]: Start difference. First operand 103 states and 115 transitions. Second operand 8 states. [2018-09-21 18:37:24,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:37:24,394 INFO L93 Difference]: Finished difference Result 103 states and 114 transitions. [2018-09-21 18:37:24,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:37:24,395 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2018-09-21 18:37:24,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:37:24,396 INFO L225 Difference]: With dead ends: 103 [2018-09-21 18:37:24,396 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:37:24,397 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:37:24,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:37:24,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:37:24,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:37:24,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:37:24,398 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-09-21 18:37:24,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:37:24,398 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:37:24,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:37:24,399 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:37:24,399 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:37:24,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:37:24 BoogieIcfgContainer [2018-09-21 18:37:24,405 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:37:24,406 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:37:24,406 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:37:24,406 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:37:24,407 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:37:11" (3/4) ... [2018-09-21 18:37:24,411 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:37:24,417 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-09-21 18:37:24,418 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:37:24,418 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-09-21 18:37:24,418 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_log10f [2018-09-21 18:37:24,418 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:37:24,426 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2018-09-21 18:37:24,428 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-09-21 18:37:24,428 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-21 18:37:24,429 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:37:24,513 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:37:24,513 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:37:24,514 INFO L168 Benchmark]: Toolchain (without parser) took 33118.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 953.2 MB in the beginning and 898.4 MB in the end (delta: 54.8 MB). Peak memory consumption was 211.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:24,515 INFO L168 Benchmark]: CDTParser took 0.61 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. [2018-09-21 18:37:24,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 490.29 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:24,517 INFO L168 Benchmark]: Boogie Preprocessor took 85.07 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:24,518 INFO L168 Benchmark]: RCFGBuilder took 19639.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -168.3 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:24,518 INFO L168 Benchmark]: TraceAbstraction took 12788.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 905.4 MB in the end (delta: 194.6 MB). Peak memory consumption was 194.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:24,519 INFO L168 Benchmark]: Witness Printer took 107.35 ms. Allocated memory is still 1.2 GB. Free memory was 905.4 MB in the beginning and 898.4 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:24,523 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 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 490.29 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 85.07 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 19639.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -168.3 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 12788.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 905.4 MB in the end (delta: 194.6 MB). Peak memory consumption was 194.6 MB. Max. memory is 11.5 GB. * Witness Printer took 107.35 ms. Allocated memory is still 1.2 GB. Free memory was 905.4 MB in the beginning and 898.4 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 159]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 107 locations, 1 error locations. SAFE Result, 12.7s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 9.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 429 SDtfs, 225 SDslu, 1780 SDs, 0 SdLazy, 263 SolverSat, 16 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred 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, 4 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 106 ConstructedInterpolants, 5 QuantifiedInterpolants, 18102 SizeOfPredicates, 19 NumberOfNonLiveVariables, 424 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...