/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1052a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1052a_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 269c6e32b98d41be14ec8894bc32516e2df9c183 ................................................................................................................................................................................................................................................................................................................ 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_1052a_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 269c6e32b98d41be14ec8894bc32516e2df9c183 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:29:58,470 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:29:58,472 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:29:58,487 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:29:58,487 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:29:58,489 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:29:58,490 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:29:58,492 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:29:58,493 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:29:58,494 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:29:58,495 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:29:58,495 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:29:58,496 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:29:58,497 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:29:58,499 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:29:58,500 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:29:58,501 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:29:58,503 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:29:58,508 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:29:58,512 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:29:58,516 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:29:58,518 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:29:58,525 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:29:58,526 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:29:58,526 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:29:58,528 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:29:58,529 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:29:58,530 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:29:58,531 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:29:58,532 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:29:58,533 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:29:58,534 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:29:58,534 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:29:58,534 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:29:58,536 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:29:58,538 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:29:58,539 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:29:58,555 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:29:58,555 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:29:58,556 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:29:58,556 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:29:58,557 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:29:58,557 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:29:58,558 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:29:58,558 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:29:58,558 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:29:58,558 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:29:58,559 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:29:58,559 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:29:58,559 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:29:58,559 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:29:58,559 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:29:58,560 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:29:58,561 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:29:58,561 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:29:58,561 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:29:58,561 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:29:58,561 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:29:58,562 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:29:58,562 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:29:58,562 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:29:58,562 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:29:58,565 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:29:58,566 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:29:58,566 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:29:58,566 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:29:58,566 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 -> 269c6e32b98d41be14ec8894bc32516e2df9c183 [2018-09-20 15:29:58,653 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:29:58,671 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:29:58,675 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:29:58,677 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:29:58,678 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:29:58,679 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1052a_true-unreach-call.c [2018-09-20 15:29:59,035 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/903e0ab7d/778174dbb84a4bd9bee2543aa9f1063b/FLAGe636855a5 [2018-09-20 15:29:59,164 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:29:59,165 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1052a_true-unreach-call.c [2018-09-20 15:29:59,172 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/903e0ab7d/778174dbb84a4bd9bee2543aa9f1063b/FLAGe636855a5 [2018-09-20 15:29:59,188 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/903e0ab7d/778174dbb84a4bd9bee2543aa9f1063b [2018-09-20 15:29:59,192 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:29:59,195 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:29:59,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:29:59,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:29:59,202 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:29:59,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:29:59" (1/1) ... [2018-09-20 15:29:59,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26bbf828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:59, skipping insertion in model container [2018-09-20 15:29:59,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:29:59" (1/1) ... [2018-09-20 15:29:59,219 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:29:59,476 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:29:59,495 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:29:59,516 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:29:59,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:59 WrapperNode [2018-09-20 15:29:59,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:29:59,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:29:59,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:29:59,577 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:29:59,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:59" (1/1) ... [2018-09-20 15:29:59,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:59" (1/1) ... [2018-09-20 15:29:59,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:59" (1/1) ... [2018-09-20 15:29:59,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:59" (1/1) ... [2018-09-20 15:29:59,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:59" (1/1) ... [2018-09-20 15:29:59,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:59" (1/1) ... [2018-09-20 15:29:59,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:59" (1/1) ... [2018-09-20 15:29:59,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:29:59,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:29:59,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:29:59,652 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:29:59,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:29:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:29:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:29:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-09-20 15:29:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-20 15:29:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:29:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:29:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-09-20 15:29:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:29:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:29:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:29:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:29:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:29:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:29:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-20 15:29:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:29:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:29:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:29:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:29:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:30:00,402 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:30:00,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:00 BoogieIcfgContainer [2018-09-20 15:30:00,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:30:00,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:30:00,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:30:00,407 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:30:00,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:29:59" (1/3) ... [2018-09-20 15:30:00,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2550e9e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:30:00, skipping insertion in model container [2018-09-20 15:30:00,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:59" (2/3) ... [2018-09-20 15:30:00,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2550e9e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:30:00, skipping insertion in model container [2018-09-20 15:30:00,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:00" (3/3) ... [2018-09-20 15:30:00,412 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052a_true-unreach-call.c [2018-09-20 15:30:00,422 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:30:00,431 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:30:00,481 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:30:00,482 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:30:00,482 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:30:00,482 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:30:00,482 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:30:00,482 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:30:00,483 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:30:00,483 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:30:00,483 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:30:00,504 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2018-09-20 15:30:00,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-20 15:30:00,513 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:00,514 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] [2018-09-20 15:30:00,516 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:00,522 INFO L82 PathProgramCache]: Analyzing trace with hash 219245270, now seen corresponding path program 1 times [2018-09-20 15:30:00,525 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:30:00,526 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:30:00,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:30:00,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:30:00,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:30:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:00,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:30:00,682 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:00,682 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:30:00,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:30:00,703 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:30:00,704 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:30:00,706 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 2 states. [2018-09-20 15:30:00,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:00,739 INFO L93 Difference]: Finished difference Result 124 states and 155 transitions. [2018-09-20 15:30:00,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:30:00,741 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-09-20 15:30:00,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:00,753 INFO L225 Difference]: With dead ends: 124 [2018-09-20 15:30:00,753 INFO L226 Difference]: Without dead ends: 62 [2018-09-20 15:30:00,758 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 [2018-09-20 15:30:00,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-09-20 15:30:00,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-09-20 15:30:00,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-09-20 15:30:00,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2018-09-20 15:30:00,807 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 24 [2018-09-20 15:30:00,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:00,808 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2018-09-20 15:30:00,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:30:00,808 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2018-09-20 15:30:00,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-20 15:30:00,810 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:00,810 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:30:00,811 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:00,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1629698308, now seen corresponding path program 1 times [2018-09-20 15:30:00,811 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:30:00,812 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:30:00,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:30:00,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:30:00,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:30:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:30:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:30:00,994 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:30:01,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:30:01 BoogieIcfgContainer [2018-09-20 15:30:01,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:30:01,036 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:30:01,036 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:30:01,036 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:30:01,037 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:00" (3/4) ... [2018-09-20 15:30:01,041 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:30:01,041 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:30:01,042 INFO L168 Benchmark]: Toolchain (without parser) took 1850.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 951.8 MB in the beginning and 1.0 GB in the end (delta: -86.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:01,045 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:30:01,045 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.47 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:01,046 INFO L168 Benchmark]: Boogie Preprocessor took 75.10 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:01,047 INFO L168 Benchmark]: RCFGBuilder took 750.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -131.1 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:01,048 INFO L168 Benchmark]: TraceAbstraction took 631.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:01,049 INFO L168 Benchmark]: Witness Printer took 5.87 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:30:01,054 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 379.47 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.10 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 750.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -131.1 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 631.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.87 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 64. Possible FailurePath: [L11] static const float huge_floor = 1.0e30; VAL [\old(huge_floor)=10737418246, huge_floor=1000000000000000000000000000000] [L75] float x = 1.0f / 0.0f; VAL [huge_floor=1000000000000000000000000000000] [L76] CALL, EXPR floor_float(x) VAL [\old(x)=10737418248, huge_floor=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [\old(x)=10737418248, huge_floor=1000000000000000000000000000000, x=10737418248] [L17] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=10737418248, gf_u={10737418242:0}, huge_floor=1000000000000000000000000000000, x=10737418248] [L18] FCALL gf_u.value = (x) VAL [\old(x)=10737418248, gf_u={10737418242:0}, huge_floor=1000000000000000000000000000000, x=10737418248] [L19] EXPR, FCALL gf_u.word VAL [\old(x)=10737418248, gf_u={10737418242:0}, gf_u.word=6442450944, huge_floor=1000000000000000000000000000000, x=10737418248] [L19] (i0) = gf_u.word VAL [\old(x)=10737418248, gf_u={10737418242:0}, gf_u.word=6442450944, huge_floor=1000000000000000000000000000000, i0=-2147483648, x=10737418248] [L19] FCALL (i0) = gf_u.word VAL [(i0) = gf_u.word=10737418249, \old(x)=10737418248, gf_u={10737418242:0}, gf_u.word=6442450944, huge_floor=1000000000000000000000000000000, i0=-2147483648, x=10737418248] [L20] COND FALSE !(0) VAL [\old(x)=10737418248, huge_floor=1000000000000000000000000000000, i0=-2147483648, x=10737418248] [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [\old(x)=10737418248, huge_floor=1000000000000000000000000000000, i=-18014398509481985, i0=-2147483648, j0=2147483520, x=10737418248] [L23] COND FALSE !(j0 < 23) VAL [\old(x)=10737418248, huge_floor=1000000000000000000000000000000, i=-18014398509481985, i0=-2147483648, j0=2147483520, x=10737418248] [L43] COND TRUE !((ix) < 0x7f800000L) [L44] RET return x + x; VAL [\old(x)=10737418248, huge_floor=1000000000000000000000000000000, i=-18014398509481985, i0=-2147483648, j0=2147483520, x=10737418248] [L76] EXPR floor_float(x) VAL [floor_float(x)=10737418245, huge_floor=1000000000000000000000000000000, x=10737418248] [L76] float res = floor_float(x); [L79] CALL, EXPR isinf_float(res) VAL [\old(x)=10737418245, huge_floor=1000000000000000000000000000000] [L58] __int32_t ix; VAL [\old(x)=10737418245, huge_floor=1000000000000000000000000000000, x=10737418245] [L60] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=10737418245, gf_u={10737418243:0}, huge_floor=1000000000000000000000000000000, x=10737418245] [L61] FCALL gf_u.value = (x) VAL [\old(x)=10737418245, gf_u={10737418243:0}, huge_floor=1000000000000000000000000000000, x=10737418245] [L62] EXPR, FCALL gf_u.word VAL [\old(x)=10737418245, gf_u={10737418243:0}, gf_u.word=10737418240, huge_floor=1000000000000000000000000000000, x=10737418245] [L62] (ix) = gf_u.word VAL [\old(x)=10737418245, gf_u={10737418243:0}, gf_u.word=10737418240, huge_floor=1000000000000000000000000000000, ix=-2147483648, x=10737418245] [L62] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=10737418244, \old(x)=10737418245, gf_u={10737418243:0}, gf_u.word=10737418240, huge_floor=1000000000000000000000000000000, ix=-2147483648, x=10737418245] [L63] COND FALSE !(0) VAL [\old(x)=10737418245, huge_floor=1000000000000000000000000000000, ix=-2147483648, x=10737418245] [L64] ix &= 0x7fffffff [L65] RET return ((ix) == 0x7f800000L); VAL [\old(x)=10737418245, \result=0, huge_floor=1000000000000000000000000000000, ix=0, x=10737418245] [L79] EXPR isinf_float(res) VAL [huge_floor=1000000000000000000000000000000, isinf_float(res)=0, res=10737418245, x=10737418248] [L79] COND TRUE !isinf_float(res) [L80] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000, res=10737418245, x=10737418248] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 66 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 74 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=66occurred 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, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 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 0.1.23-40ef509 [2018-09-20 15:30:03,479 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:30:03,481 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:30:03,493 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:30:03,494 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:30:03,495 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:30:03,497 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:30:03,499 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:30:03,505 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:30:03,506 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:30:03,510 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:30:03,510 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:30:03,511 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:30:03,512 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:30:03,515 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:30:03,516 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:30:03,517 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:30:03,519 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:30:03,528 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:30:03,532 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:30:03,534 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:30:03,539 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:30:03,541 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:30:03,546 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:30:03,547 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:30:03,548 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:30:03,549 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:30:03,553 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:30:03,554 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:30:03,558 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:30:03,558 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:30:03,559 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:30:03,559 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:30:03,559 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:30:03,560 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:30:03,564 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:30:03,565 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:30:03,590 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:30:03,590 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:30:03,591 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:30:03,591 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:30:03,592 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:30:03,592 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:30:03,593 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:30:03,593 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:30:03,593 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:30:03,594 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:30:03,594 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:30:03,594 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:30:03,594 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:30:03,594 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:30:03,594 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:30:03,595 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:30:03,595 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:30:03,595 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:30:03,595 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:30:03,597 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:30:03,597 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:30:03,597 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:30:03,597 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:30:03,598 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:30:03,598 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:30:03,598 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:30:03,598 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:30:03,599 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:30:03,599 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:30:03,599 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:30:03,599 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:30:03,599 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 -> 269c6e32b98d41be14ec8894bc32516e2df9c183 [2018-09-20 15:30:03,656 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:30:03,675 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:30:03,679 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:30:03,680 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:30:03,681 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:30:03,682 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1052a_true-unreach-call.c [2018-09-20 15:30:04,064 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92d25932c/16d58e2076564b78bde24091b789ccd2/FLAG56746fe50 [2018-09-20 15:30:04,256 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:30:04,257 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1052a_true-unreach-call.c [2018-09-20 15:30:04,264 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92d25932c/16d58e2076564b78bde24091b789ccd2/FLAG56746fe50 [2018-09-20 15:30:04,280 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92d25932c/16d58e2076564b78bde24091b789ccd2 [2018-09-20 15:30:04,284 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:30:04,288 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:30:04,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:30:04,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:30:04,296 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:30:04,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:30:04" (1/1) ... [2018-09-20 15:30:04,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4069e5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:04, skipping insertion in model container [2018-09-20 15:30:04,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:30:04" (1/1) ... [2018-09-20 15:30:04,314 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:30:04,578 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:30:04,612 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:30:04,650 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:30:04,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:04 WrapperNode [2018-09-20 15:30:04,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:30:04,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:30:04,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:30:04,715 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:30:04,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:04" (1/1) ... [2018-09-20 15:30:04,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:04" (1/1) ... [2018-09-20 15:30:04,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:04" (1/1) ... [2018-09-20 15:30:04,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:04" (1/1) ... [2018-09-20 15:30:04,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:04" (1/1) ... [2018-09-20 15:30:04,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:04" (1/1) ... [2018-09-20 15:30:04,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:04" (1/1) ... [2018-09-20 15:30:04,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:30:04,799 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:30:04,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:30:04,799 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:30:04,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:30:04,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:30:04,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:30:04,989 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-09-20 15:30:04,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-20 15:30:04,990 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:30:04,990 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:30:04,990 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-09-20 15:30:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:30:04,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:30:04,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:30:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:30:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:30:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:30:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-20 15:30:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:30:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:30:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:30:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:30:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:30:05,326 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:30:05,374 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:30:05,992 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:30:06,005 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:30:06,075 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:30:06,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:06 BoogieIcfgContainer [2018-09-20 15:30:06,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:30:06,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:30:06,078 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:30:06,082 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:30:06,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:30:04" (1/3) ... [2018-09-20 15:30:06,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3793b247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:30:06, skipping insertion in model container [2018-09-20 15:30:06,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:30:04" (2/3) ... [2018-09-20 15:30:06,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3793b247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:30:06, skipping insertion in model container [2018-09-20 15:30:06,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:06" (3/3) ... [2018-09-20 15:30:06,087 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052a_true-unreach-call.c [2018-09-20 15:30:06,097 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:30:06,105 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:30:06,150 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:30:06,151 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:30:06,151 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:30:06,151 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:30:06,152 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:30:06,152 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:30:06,152 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:30:06,152 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:30:06,153 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:30:06,174 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-09-20 15:30:06,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-20 15:30:06,182 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:06,183 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] [2018-09-20 15:30:06,186 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:06,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1850733135, now seen corresponding path program 1 times [2018-09-20 15:30:06,197 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:30:06,198 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 [2018-09-20 15:30:06,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:30:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:06,313 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:30:06,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:30:06,335 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:30:06,351 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:06,352 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:30:06,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:30:06,370 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:30:06,371 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:30:06,374 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 2 states. [2018-09-20 15:30:06,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:06,402 INFO L93 Difference]: Finished difference Result 122 states and 153 transitions. [2018-09-20 15:30:06,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:30:06,403 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-09-20 15:30:06,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:06,414 INFO L225 Difference]: With dead ends: 122 [2018-09-20 15:30:06,414 INFO L226 Difference]: Without dead ends: 61 [2018-09-20 15:30:06,419 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:30:06,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-09-20 15:30:06,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-09-20 15:30:06,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-09-20 15:30:06,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2018-09-20 15:30:06,464 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 69 transitions. Word has length 23 [2018-09-20 15:30:06,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:06,464 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 69 transitions. [2018-09-20 15:30:06,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:30:06,464 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 69 transitions. [2018-09-20 15:30:06,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-20 15:30:06,466 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:06,467 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:30:06,467 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:06,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1606653151, now seen corresponding path program 1 times [2018-09-20 15:30:06,469 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:30:06,469 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) [2018-09-20 15:30:06,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 15:30:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:06,585 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:30:07,263 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 [2018-09-20 15:30:07,268 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 [2018-09-20 15:30:07,268 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:30:07,272 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:07,286 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:07,286 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:30:07,514 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 [2018-09-20 15:30:07,521 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 [2018-09-20 15:30:07,521 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:30:07,526 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:07,531 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:07,532 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:30:08,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:30:08,448 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:30:08,466 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:08,466 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-20 15:30:08,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-20 15:30:08,471 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-20 15:30:08,472 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-09-20 15:30:08,472 INFO L87 Difference]: Start difference. First operand 61 states and 69 transitions. Second operand 13 states. [2018-09-20 15:30:09,106 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-20 15:30:11,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:11,940 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2018-09-20 15:30:11,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-20 15:30:11,947 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 41 [2018-09-20 15:30:11,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:11,951 INFO L225 Difference]: With dead ends: 70 [2018-09-20 15:30:11,951 INFO L226 Difference]: Without dead ends: 63 [2018-09-20 15:30:11,953 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2018-09-20 15:30:11,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-20 15:30:11,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2018-09-20 15:30:11,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-09-20 15:30:11,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2018-09-20 15:30:11,967 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 41 [2018-09-20 15:30:11,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:11,967 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2018-09-20 15:30:11,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-20 15:30:11,968 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2018-09-20 15:30:11,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-20 15:30:11,970 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:11,970 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:30:11,971 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:11,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1818004064, now seen corresponding path program 1 times [2018-09-20 15:30:11,972 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:30:11,973 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 [2018-09-20 15:30:11,980 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:30:12,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:12,043 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:30:12,083 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 [2018-09-20 15:30:12,088 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 [2018-09-20 15:30:12,089 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:30:12,093 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:12,106 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:12,106 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:30:12,144 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 [2018-09-20 15:30:12,149 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 [2018-09-20 15:30:12,149 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:30:12,153 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:12,159 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:12,159 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:30:12,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:30:12,325 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:30:12,338 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:12,339 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:30:12,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:30:12,340 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:30:12,340 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:30:12,340 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand 9 states. [2018-09-20 15:30:14,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:14,018 INFO L93 Difference]: Finished difference Result 111 states and 117 transitions. [2018-09-20 15:30:14,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-20 15:30:14,020 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2018-09-20 15:30:14,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:14,022 INFO L225 Difference]: With dead ends: 111 [2018-09-20 15:30:14,022 INFO L226 Difference]: Without dead ends: 76 [2018-09-20 15:30:14,024 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2018-09-20 15:30:14,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-09-20 15:30:14,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 60. [2018-09-20 15:30:14,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-09-20 15:30:14,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2018-09-20 15:30:14,033 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 41 [2018-09-20 15:30:14,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:14,033 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2018-09-20 15:30:14,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:30:14,034 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2018-09-20 15:30:14,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-20 15:30:14,035 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:30:14,035 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:30:14,037 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:30:14,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1924909987, now seen corresponding path program 1 times [2018-09-20 15:30:14,037 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:30:14,037 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 [2018-09-20 15:30:14,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:30:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:30:14,099 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:30:14,128 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 [2018-09-20 15:30:14,132 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 [2018-09-20 15:30:14,133 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:30:14,137 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:14,150 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:14,150 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:30:14,175 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 [2018-09-20 15:30:14,189 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 [2018-09-20 15:30:14,192 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:30:14,214 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:14,216 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:30:14,217 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:30:14,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:30:14,351 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:30:14,361 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:30:14,361 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:30:14,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:30:14,363 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:30:14,363 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:30:14,363 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand 9 states. [2018-09-20 15:30:15,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:30:15,896 INFO L93 Difference]: Finished difference Result 76 states and 81 transitions. [2018-09-20 15:30:15,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-20 15:30:15,897 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2018-09-20 15:30:15,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:30:15,898 INFO L225 Difference]: With dead ends: 76 [2018-09-20 15:30:15,898 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:30:15,899 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2018-09-20 15:30:15,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:30:15,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:30:15,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:30:15,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:30:15,900 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2018-09-20 15:30:15,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:30:15,900 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:30:15,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:30:15,902 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:30:15,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:30:15,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:30:16,096 INFO L426 ceAbstractionStarter]: For program point L62(line 62) no Hoare annotation was computed. [2018-09-20 15:30:16,097 INFO L426 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-09-20 15:30:16,097 INFO L426 ceAbstractionStarter]: For program point L62-1(line 62) no Hoare annotation was computed. [2018-09-20 15:30:16,097 INFO L426 ceAbstractionStarter]: For program point L60(line 60) no Hoare annotation was computed. [2018-09-20 15:30:16,097 INFO L426 ceAbstractionStarter]: For program point L62-2(line 62) no Hoare annotation was computed. [2018-09-20 15:30:16,097 INFO L426 ceAbstractionStarter]: For program point L60-1(line 60) no Hoare annotation was computed. [2018-09-20 15:30:16,097 INFO L426 ceAbstractionStarter]: For program point L60-2(line 60) no Hoare annotation was computed. [2018-09-20 15:30:16,097 INFO L426 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2018-09-20 15:30:16,098 INFO L426 ceAbstractionStarter]: For program point L60-3(line 60) no Hoare annotation was computed. [2018-09-20 15:30:16,098 INFO L422 ceAbstractionStarter]: At program point L59-3(lines 59 63) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-09-20 15:30:16,098 INFO L426 ceAbstractionStarter]: For program point L59-4(lines 59 63) no Hoare annotation was computed. [2018-09-20 15:30:16,098 INFO L429 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 57 66) the Hoare annotation is: true [2018-09-20 15:30:16,098 INFO L426 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 57 66) no Hoare annotation was computed. [2018-09-20 15:30:16,098 INFO L426 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 57 66) no Hoare annotation was computed. [2018-09-20 15:30:16,099 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:30:16,099 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:30:16,099 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:30:16,099 INFO L426 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-09-20 15:30:16,099 INFO L426 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-09-20 15:30:16,099 INFO L426 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-09-20 15:30:16,099 INFO L426 ceAbstractionStarter]: For program point L19-2(line 19) no Hoare annotation was computed. [2018-09-20 15:30:16,100 INFO L426 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-09-20 15:30:16,100 INFO L426 ceAbstractionStarter]: For program point L48-2(lines 13 54) no Hoare annotation was computed. [2018-09-20 15:30:16,100 INFO L426 ceAbstractionStarter]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2018-09-20 15:30:16,100 INFO L426 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-09-20 15:30:16,100 INFO L426 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-09-20 15:30:16,100 INFO L426 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-09-20 15:30:16,100 INFO L426 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-09-20 15:30:16,100 INFO L426 ceAbstractionStarter]: For program point L49-1(line 49) no Hoare annotation was computed. [2018-09-20 15:30:16,101 INFO L426 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-09-20 15:30:16,101 INFO L426 ceAbstractionStarter]: For program point L49-2(line 49) no Hoare annotation was computed. [2018-09-20 15:30:16,101 INFO L426 ceAbstractionStarter]: For program point L49-3(line 49) no Hoare annotation was computed. [2018-09-20 15:30:16,101 INFO L422 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (= |floor_float_#in~x| floor_float_~x) [2018-09-20 15:30:16,101 INFO L426 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-09-20 15:30:16,101 INFO L426 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-09-20 15:30:16,101 INFO L426 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-09-20 15:30:16,102 INFO L426 ceAbstractionStarter]: For program point floor_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-09-20 15:30:16,102 INFO L426 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-09-20 15:30:16,102 INFO L426 ceAbstractionStarter]: For program point L50(line 50) no Hoare annotation was computed. [2018-09-20 15:30:16,102 INFO L426 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-09-20 15:30:16,102 INFO L426 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-09-20 15:30:16,102 INFO L426 ceAbstractionStarter]: For program point L17-2(line 17) no Hoare annotation was computed. [2018-09-20 15:30:16,103 INFO L426 ceAbstractionStarter]: For program point L17-3(line 17) no Hoare annotation was computed. [2018-09-20 15:30:16,104 INFO L426 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-09-20 15:30:16,104 INFO L426 ceAbstractionStarter]: For program point floor_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-09-20 15:30:16,104 INFO L426 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-09-20 15:30:16,104 INFO L429 ceAbstractionStarter]: At program point floor_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-09-20 15:30:16,104 INFO L426 ceAbstractionStarter]: For program point L51(line 51) no Hoare annotation was computed. [2018-09-20 15:30:16,104 INFO L426 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-09-20 15:30:16,104 INFO L426 ceAbstractionStarter]: For program point L51-1(line 51) no Hoare annotation was computed. [2018-09-20 15:30:16,105 INFO L426 ceAbstractionStarter]: For program point L51-2(line 51) no Hoare annotation was computed. [2018-09-20 15:30:16,105 INFO L426 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-09-20 15:30:16,105 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:30:16,105 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:30:16,105 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:30:16,105 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:30:16,108 INFO L426 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-09-20 15:30:16,108 INFO L422 ceAbstractionStarter]: At program point L79(line 79) the Hoare annotation is: (let ((.cse0 (fp.div RNE ((_ to_fp 8 24) RNE 1.0) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= (fp.add RNE .cse0 .cse0) main_~res~0))) [2018-09-20 15:30:16,108 INFO L426 ceAbstractionStarter]: For program point L79-1(lines 79 82) no Hoare annotation was computed. [2018-09-20 15:30:16,109 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 68 85) the Hoare annotation is: true [2018-09-20 15:30:16,109 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 68 85) no Hoare annotation was computed. [2018-09-20 15:30:16,109 INFO L422 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (= (fp.div RNE ((_ to_fp 8 24) RNE 1.0) (_ +zero 8 24)) main_~x~0) [2018-09-20 15:30:16,110 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2018-09-20 15:30:16,111 INFO L426 ceAbstractionStarter]: For program point L76-1(line 76) no Hoare annotation was computed. [2018-09-20 15:30:16,111 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 68 85) no Hoare annotation was computed. [2018-09-20 15:30:16,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:30:16 BoogieIcfgContainer [2018-09-20 15:30:16,124 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:30:16,125 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:30:16,125 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:30:16,125 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:30:16,126 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:30:06" (3/4) ... [2018-09-20 15:30:16,130 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:30:16,137 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:30:16,137 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-09-20 15:30:16,137 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_float [2018-09-20 15:30:16,138 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:30:16,144 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-09-20 15:30:16,145 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-09-20 15:30:16,145 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:30:16,173 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:30:16,174 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:30:16,220 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:30:16,220 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:30:16,221 INFO L168 Benchmark]: Toolchain (without parser) took 11936.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 951.9 MB in the beginning and 839.6 MB in the end (delta: 112.3 MB). Peak memory consumption was 251.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:16,222 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. [2018-09-20 15:30:16,224 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.99 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:16,224 INFO L168 Benchmark]: Boogie Preprocessor took 83.84 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:16,224 INFO L168 Benchmark]: RCFGBuilder took 1277.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -170.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:16,225 INFO L168 Benchmark]: TraceAbstraction took 10047.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 839.6 MB in the end (delta: 266.5 MB). Peak memory consumption was 266.5 MB. Max. memory is 11.5 GB. [2018-09-20 15:30:16,227 INFO L168 Benchmark]: Witness Printer took 95.49 ms. Allocated memory is still 1.2 GB. Free memory is still 839.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:30:16,230 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 424.99 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 83.84 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1277.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -170.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10047.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 839.6 MB in the end (delta: 266.5 MB). Peak memory consumption was 266.5 MB. Max. memory is 11.5 GB. * Witness Printer took 95.49 ms. Allocated memory is still 1.2 GB. Free memory is still 839.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: 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 - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 65 locations, 1 error locations. SAFE Result, 9.9s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 6.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 209 SDtfs, 285 SDslu, 936 SDs, 0 SdLazy, 449 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 16 PreInvPairs, 19 NumberOfFragments, 45 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 143 ConstructedInterpolants, 11 QuantifiedInterpolants, 28749 SizeOfPredicates, 26 NumberOfNonLiveVariables, 320 ConjunctsInSsa, 36 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...