/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051_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 0fa375491f6ee23468a1ede5cb9608fff6035ced --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ......................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051_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 0fa375491f6ee23468a1ede5cb9608fff6035ced --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false .................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:10:28,570 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:10:28,573 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:10:28,585 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:10:28,585 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:10:28,586 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:10:28,587 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:10:28,589 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:10:28,591 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:10:28,592 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:10:28,593 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:10:28,593 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:10:28,594 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:10:28,595 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:10:28,596 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:10:28,597 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:10:28,598 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:10:28,600 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:10:28,602 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:10:28,603 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:10:28,604 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:10:28,606 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:10:28,608 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:10:28,609 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:10:28,609 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:10:28,610 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:10:28,611 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:10:28,612 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:10:28,613 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:10:28,614 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:10:28,614 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:10:28,615 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:10:28,615 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:10:28,615 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:10:28,616 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:10:28,617 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:10:28,617 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:10:28,638 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:10:28,638 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:10:28,641 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:10:28,641 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:10:28,642 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:10:28,642 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:10:28,642 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:10:28,642 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:10:28,642 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:10:28,643 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:10:28,643 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:10:28,643 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:10:28,643 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:10:28,643 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:10:28,643 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:10:28,644 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:10:28,644 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:10:28,644 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:10:28,644 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:10:28,648 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:10:28,648 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:10:28,648 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:10:28,649 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:10:28,649 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:10:28,649 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:10:28,649 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:10:28,650 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:10:28,650 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:10:28,650 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:10:28,650 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 -> 0fa375491f6ee23468a1ede5cb9608fff6035ced Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:10:28,708 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:10:28,721 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:10:28,724 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:10:28,726 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:10:28,727 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:10:28,728 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051_true-unreach-call.c [2018-09-21 18:10:29,082 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea2864182/a3d7972dc6c54c1498943e8594d1c8f5/FLAG64d410a1d [2018-09-21 18:10:29,267 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:10:29,267 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1051_true-unreach-call.c [2018-09-21 18:10:29,279 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea2864182/a3d7972dc6c54c1498943e8594d1c8f5/FLAG64d410a1d [2018-09-21 18:10:29,304 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea2864182/a3d7972dc6c54c1498943e8594d1c8f5 [2018-09-21 18:10:29,309 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:10:29,312 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:10:29,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:10:29,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:10:29,322 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:10:29,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:10:29" (1/1) ... [2018-09-21 18:10:29,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37aae93f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:29, skipping insertion in model container [2018-09-21 18:10:29,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:10:29" (1/1) ... [2018-09-21 18:10:29,341 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:10:29,639 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:10:29,656 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:10:29,676 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:10:29,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:29 WrapperNode [2018-09-21 18:10:29,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:10:29,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:10:29,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:10:29,705 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:10:29,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:29" (1/1) ... [2018-09-21 18:10:29,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:29" (1/1) ... [2018-09-21 18:10:29,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:29" (1/1) ... [2018-09-21 18:10:29,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:29" (1/1) ... [2018-09-21 18:10:29,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:29" (1/1) ... [2018-09-21 18:10:29,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:29" (1/1) ... [2018-09-21 18:10:29,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:29" (1/1) ... [2018-09-21 18:10:29,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:10:29,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:10:29,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:10:29,789 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:10:29,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:10:29,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:10:29,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:10:29,928 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-09-21 18:10:29,928 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:10:29,928 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:10:29,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:10:29,928 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-09-21 18:10:29,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:10:29,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:10:29,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:10:29,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:10:29,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:10:29,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:10:29,929 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:10:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:10:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:10:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:10:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:10:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:10:30,487 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:10:30,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:30 BoogieIcfgContainer [2018-09-21 18:10:30,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:10:30,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:10:30,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:10:30,496 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:10:30,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:10:29" (1/3) ... [2018-09-21 18:10:30,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3743fce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:10:30, skipping insertion in model container [2018-09-21 18:10:30,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:29" (2/3) ... [2018-09-21 18:10:30,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3743fce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:10:30, skipping insertion in model container [2018-09-21 18:10:30,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:30" (3/3) ... [2018-09-21 18:10:30,502 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051_true-unreach-call.c [2018-09-21 18:10:30,513 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:10:30,526 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:10:30,572 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:10:30,573 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:10:30,574 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:10:30,574 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:10:30,574 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:10:30,574 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:10:30,574 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:10:30,574 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:10:30,575 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:10:30,595 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2018-09-21 18:10:30,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-21 18:10:30,608 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:30,609 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] [2018-09-21 18:10:30,612 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:30,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1242244284, now seen corresponding path program 1 times [2018-09-21 18:10:30,620 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:10:30,621 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:10:30,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:10:30,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:30,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:10:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:30,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:10:30,765 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:30,766 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:10:30,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:10:30,784 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:10:30,784 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:10:30,787 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 2 states. [2018-09-21 18:10:30,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:10:30,811 INFO L93 Difference]: Finished difference Result 69 states and 83 transitions. [2018-09-21 18:10:30,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:10:30,813 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-09-21 18:10:30,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:10:30,826 INFO L225 Difference]: With dead ends: 69 [2018-09-21 18:10:30,826 INFO L226 Difference]: Without dead ends: 65 [2018-09-21 18:10:30,828 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:10:30,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-09-21 18:10:30,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-09-21 18:10:30,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-09-21 18:10:30,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 79 transitions. [2018-09-21 18:10:30,876 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 79 transitions. Word has length 23 [2018-09-21 18:10:30,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:10:30,876 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 79 transitions. [2018-09-21 18:10:30,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:10:30,877 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 79 transitions. [2018-09-21 18:10:30,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-21 18:10:30,879 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:30,879 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] [2018-09-21 18:10:30,879 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:30,880 INFO L82 PathProgramCache]: Analyzing trace with hash -789968258, now seen corresponding path program 1 times [2018-09-21 18:10:30,880 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:10:30,880 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:10:30,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:10:30,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:30,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:10:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:10:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:10:31,017 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:10:31,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:10:31 BoogieIcfgContainer [2018-09-21 18:10:31,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:10:31,066 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:10:31,066 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:10:31,067 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:10:31,067 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:30" (3/4) ... [2018-09-21 18:10:31,071 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:10:31,072 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:10:31,073 INFO L168 Benchmark]: Toolchain (without parser) took 1763.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 949.2 MB in the beginning and 1.0 GB in the end (delta: -93.9 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:31,076 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:10:31,077 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.78 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:31,078 INFO L168 Benchmark]: Boogie Preprocessor took 83.37 ms. Allocated memory is still 1.0 GB. Free memory was 938.4 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:31,079 INFO L168 Benchmark]: RCFGBuilder took 699.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -137.2 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:31,080 INFO L168 Benchmark]: TraceAbstraction took 576.49 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: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:31,081 INFO L168 Benchmark]: Witness Printer took 5.72 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. [2018-09-21 18:10:31,088 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 390.78 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 83.37 ms. Allocated memory is still 1.0 GB. Free memory was 938.4 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 699.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -137.2 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 576.49 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: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * Witness Printer took 5.72 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: 93]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 80, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 25. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [\old(huge_floor)=6442450947, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L88] double x = 0.0 / 0.0; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L89] CALL, EXPR floor_double(x) VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L20] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=6442450952, ew_u={6442450948:0}, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L21] FCALL ew_u.value = (x) VAL [\old(x)=6442450952, ew_u={6442450948:0}, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L22] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=6442450952, ew_u={6442450948:0}, ew_u.parts.msw=3, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L22] (i0) = ew_u.parts.msw VAL [\old(x)=6442450952, ew_u={6442450948:0}, ew_u.parts.msw=3, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, x=6442450952] [L22] FCALL (i0) = ew_u.parts.msw VAL [(i0) = ew_u.parts.msw=6442450951, \old(x)=6442450952, ew_u={6442450948:0}, ew_u.parts.msw=3, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, x=6442450952] [L23] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=6442450952, ew_u={6442450948:0}, ew_u.parts.lsw=6442450944, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, x=6442450952] [L23] (i1) = ew_u.parts.lsw VAL [\old(x)=6442450952, ew_u={6442450948:0}, ew_u.parts.lsw=6442450944, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, x=6442450952] [L23] FCALL (i1) = ew_u.parts.lsw VAL [(i1) = ew_u.parts.lsw=6442450946, \old(x)=6442450952, ew_u={6442450948:0}, ew_u.parts.lsw=6442450944, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, x=6442450952] [L24] COND FALSE !(0) VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, x=6442450952] [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, x=6442450952] [L26] COND FALSE !(j0 < 20) VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, j0=1024, x=6442450952] [L47] COND TRUE j0 > 51 VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, j0=1024, x=6442450952] [L48] COND TRUE j0 == 0x400 [L49] RET return x + x; VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, j0=1024, x=6442450952] [L89] EXPR floor_double(x) VAL [floor_double(x)=6442450949, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L89] double res = floor_double(x); [L92] CALL, EXPR isnan_double(res) VAL [\old(x)=6442450949, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L80] RET return x != x; VAL [\old(x)=6442450949, \result=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450949] [L92] EXPR isnan_double(res) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isnan_double(res)=0, res=6442450949, x=6442450952] [L92] COND TRUE !isnan_double(res) [L93] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=6442450949, x=6442450952] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 69 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 83 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=69occurred 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, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:10:33,513 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:10:33,515 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:10:33,532 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:10:33,533 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:10:33,534 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:10:33,535 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:10:33,537 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:10:33,543 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:10:33,545 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:10:33,546 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:10:33,547 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:10:33,548 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:10:33,550 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:10:33,554 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:10:33,555 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:10:33,556 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:10:33,558 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:10:33,561 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:10:33,564 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:10:33,568 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:10:33,570 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:10:33,572 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:10:33,573 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:10:33,573 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:10:33,577 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:10:33,578 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:10:33,579 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:10:33,581 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:10:33,583 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:10:33,584 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:10:33,585 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:10:33,587 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:10:33,587 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:10:33,589 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:10:33,590 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:10:33,592 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:10:33,629 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:10:33,630 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:10:33,631 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:10:33,631 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:10:33,631 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:10:33,632 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:10:33,632 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:10:33,632 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:10:33,632 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:10:33,637 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:10:33,637 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:10:33,637 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:10:33,637 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:10:33,638 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:10:33,638 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:10:33,638 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:10:33,638 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:10:33,639 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:10:33,639 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:10:33,639 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:10:33,639 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:10:33,639 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:10:33,639 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:10:33,640 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:10:33,640 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:10:33,640 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:10:33,640 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:10:33,643 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:10:33,643 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:10:33,644 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:10:33,644 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:10:33,644 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 -> 0fa375491f6ee23468a1ede5cb9608fff6035ced Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:10:33,728 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:10:33,741 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:10:33,745 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:10:33,747 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:10:33,747 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:10:33,748 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051_true-unreach-call.c [2018-09-21 18:10:34,102 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cee7b473/e5778cdb83354dcc93592af2a88f86e7/FLAGd9d41cf16 [2018-09-21 18:10:34,293 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:10:34,297 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1051_true-unreach-call.c [2018-09-21 18:10:34,307 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cee7b473/e5778cdb83354dcc93592af2a88f86e7/FLAGd9d41cf16 [2018-09-21 18:10:34,331 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cee7b473/e5778cdb83354dcc93592af2a88f86e7 [2018-09-21 18:10:34,337 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:10:34,344 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:10:34,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:10:34,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:10:34,355 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:10:34,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:10:34" (1/1) ... [2018-09-21 18:10:34,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4755dc93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:34, skipping insertion in model container [2018-09-21 18:10:34,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:10:34" (1/1) ... [2018-09-21 18:10:34,373 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:10:34,623 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:10:34,640 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:10:34,677 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:10:34,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:34 WrapperNode [2018-09-21 18:10:34,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:10:34,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:10:34,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:10:34,714 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:10:34,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:34" (1/1) ... [2018-09-21 18:10:34,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:34" (1/1) ... [2018-09-21 18:10:34,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:34" (1/1) ... [2018-09-21 18:10:34,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:34" (1/1) ... [2018-09-21 18:10:34,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:34" (1/1) ... [2018-09-21 18:10:34,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:34" (1/1) ... [2018-09-21 18:10:34,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:34" (1/1) ... [2018-09-21 18:10:34,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:10:34,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:10:34,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:10:34,774 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:10:34,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:10:34,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:10:34,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:10:34,915 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-09-21 18:10:34,915 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:10:34,916 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:10:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:10:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-09-21 18:10:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:10:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 18:10:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:10:34,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:10:34,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:10:34,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 18:10:34,917 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:10:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:10:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:10:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:10:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:10:34,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 18:10:35,334 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:10:35,369 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:10:35,397 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:10:36,984 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:10:36,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:36 BoogieIcfgContainer [2018-09-21 18:10:36,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:10:36,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:10:36,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:10:36,989 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:10:36,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:10:34" (1/3) ... [2018-09-21 18:10:36,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e93732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:10:36, skipping insertion in model container [2018-09-21 18:10:36,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:34" (2/3) ... [2018-09-21 18:10:36,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e93732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:10:36, skipping insertion in model container [2018-09-21 18:10:36,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:36" (3/3) ... [2018-09-21 18:10:36,995 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051_true-unreach-call.c [2018-09-21 18:10:37,005 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:10:37,013 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:10:37,051 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:10:37,052 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:10:37,053 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:10:37,053 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:10:37,053 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:10:37,053 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:10:37,055 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:10:37,056 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:10:37,056 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:10:37,072 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-09-21 18:10:37,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-21 18:10:37,094 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:37,096 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] [2018-09-21 18:10:37,100 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:37,106 INFO L82 PathProgramCache]: Analyzing trace with hash -79646298, now seen corresponding path program 1 times [2018-09-21 18:10:37,111 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:10:37,111 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 18:10:37,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:37,225 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:10:37,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:10:37,250 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:10:37,269 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:37,270 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:10:37,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:10:37,292 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:10:37,293 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:10:37,297 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2018-09-21 18:10:37,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:10:37,324 INFO L93 Difference]: Finished difference Result 68 states and 82 transitions. [2018-09-21 18:10:37,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:10:37,326 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-21 18:10:37,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:10:37,340 INFO L225 Difference]: With dead ends: 68 [2018-09-21 18:10:37,341 INFO L226 Difference]: Without dead ends: 64 [2018-09-21 18:10:37,343 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:10:37,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-09-21 18:10:37,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-09-21 18:10:37,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-21 18:10:37,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 78 transitions. [2018-09-21 18:10:37,393 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 78 transitions. Word has length 22 [2018-09-21 18:10:37,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:10:37,394 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 78 transitions. [2018-09-21 18:10:37,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:10:37,394 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions. [2018-09-21 18:10:37,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-21 18:10:37,396 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:37,397 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] [2018-09-21 18:10:37,397 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:37,398 INFO L82 PathProgramCache]: Analyzing trace with hash -26621879, now seen corresponding path program 1 times [2018-09-21 18:10:37,399 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:10:37,399 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) [2018-09-21 18:10:37,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-21 18:10:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:37,553 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:10:38,555 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-09-21 18:10:39,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:10:39,233 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:10:39,246 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:39,247 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:10:39,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:10:39,253 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:10:39,253 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:10:39,253 INFO L87 Difference]: Start difference. First operand 64 states and 78 transitions. Second operand 9 states. [2018-09-21 18:10:41,343 WARN L178 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-21 18:10:46,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:10:46,724 INFO L93 Difference]: Finished difference Result 71 states and 85 transitions. [2018-09-21 18:10:46,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-21 18:10:46,734 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-09-21 18:10:46,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:10:46,739 INFO L225 Difference]: With dead ends: 71 [2018-09-21 18:10:46,739 INFO L226 Difference]: Without dead ends: 66 [2018-09-21 18:10:46,740 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-21 18:10:46,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-09-21 18:10:46,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2018-09-21 18:10:46,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-21 18:10:46,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 77 transitions. [2018-09-21 18:10:46,755 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 77 transitions. Word has length 35 [2018-09-21 18:10:46,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:10:46,755 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 77 transitions. [2018-09-21 18:10:46,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:10:46,755 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 77 transitions. [2018-09-21 18:10:46,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-21 18:10:46,758 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:46,758 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] [2018-09-21 18:10:46,758 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:46,758 INFO L82 PathProgramCache]: Analyzing trace with hash -223135384, now seen corresponding path program 1 times [2018-09-21 18:10:46,759 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:10:46,760 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 18:10:46,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:46,851 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:10:47,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:10:47,436 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:10:47,452 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:47,452 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:10:47,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:10:47,453 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:10:47,453 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:10:47,454 INFO L87 Difference]: Start difference. First operand 64 states and 77 transitions. Second operand 9 states. [2018-09-21 18:10:49,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:10:49,178 INFO L93 Difference]: Finished difference Result 69 states and 82 transitions. [2018-09-21 18:10:49,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-21 18:10:49,180 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-09-21 18:10:49,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:10:49,182 INFO L225 Difference]: With dead ends: 69 [2018-09-21 18:10:49,182 INFO L226 Difference]: Without dead ends: 63 [2018-09-21 18:10:49,183 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-21 18:10:49,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-21 18:10:49,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-09-21 18:10:49,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-09-21 18:10:49,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 73 transitions. [2018-09-21 18:10:49,191 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 73 transitions. Word has length 35 [2018-09-21 18:10:49,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:10:49,192 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 73 transitions. [2018-09-21 18:10:49,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:10:49,192 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 73 transitions. [2018-09-21 18:10:49,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-21 18:10:49,194 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:49,194 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, 1, 1, 1, 1, 1, 1] [2018-09-21 18:10:49,195 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:49,195 INFO L82 PathProgramCache]: Analyzing trace with hash -398097968, now seen corresponding path program 1 times [2018-09-21 18:10:49,196 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:10:49,197 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-21 18:10:49,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:49,354 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:10:49,445 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 14 treesize of output 11 [2018-09-21 18:10:49,451 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 11 treesize of output 10 [2018-09-21 18:10:49,452 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:10:49,457 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:10:49,474 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:10:49,474 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:10:49,526 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 20 treesize of output 16 [2018-09-21 18:10:49,532 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 16 treesize of output 4 [2018-09-21 18:10:49,533 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:10:49,537 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:10:49,547 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:10:49,548 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:10:49,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:10:49,855 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:10:49,872 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:49,873 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:10:49,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:10:49,874 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:10:49,874 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:10:49,874 INFO L87 Difference]: Start difference. First operand 63 states and 73 transitions. Second operand 9 states. [2018-09-21 18:10:55,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:10:55,840 INFO L93 Difference]: Finished difference Result 111 states and 119 transitions. [2018-09-21 18:10:55,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-21 18:10:55,842 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2018-09-21 18:10:55,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:10:55,844 INFO L225 Difference]: With dead ends: 111 [2018-09-21 18:10:55,844 INFO L226 Difference]: Without dead ends: 72 [2018-09-21 18:10:55,845 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-09-21 18:10:55,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-09-21 18:10:55,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 55. [2018-09-21 18:10:55,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-09-21 18:10:55,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2018-09-21 18:10:55,852 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 48 [2018-09-21 18:10:55,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:10:55,853 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2018-09-21 18:10:55,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:10:55,853 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2018-09-21 18:10:55,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-21 18:10:55,855 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:55,855 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, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:10:55,855 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:55,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1115235079, now seen corresponding path program 1 times [2018-09-21 18:10:55,857 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:10:55,857 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-21 18:10:55,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:56,025 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:10:56,060 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 14 treesize of output 11 [2018-09-21 18:10:56,068 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 11 treesize of output 10 [2018-09-21 18:10:56,068 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:10:56,080 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:10:56,098 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:10:56,099 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:10:56,159 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 20 treesize of output 16 [2018-09-21 18:10:56,164 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 16 treesize of output 4 [2018-09-21 18:10:56,165 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:10:56,169 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:10:56,183 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:10:56,184 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:10:56,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:10:56,536 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:10:56,552 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:56,553 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:10:56,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:10:56,554 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:10:56,555 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:10:56,555 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 10 states. [2018-09-21 18:10:57,691 WARN L178 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 18:10:58,571 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2018-09-21 18:10:59,953 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2018-09-21 18:11:00,503 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2018-09-21 18:11:00,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:00,706 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2018-09-21 18:11:00,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 18:11:00,708 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 49 [2018-09-21 18:11:00,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:00,709 INFO L225 Difference]: With dead ends: 64 [2018-09-21 18:11:00,709 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:11:00,710 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2018-09-21 18:11:00,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:11:00,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:11:00,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:11:00,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:11:00,710 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2018-09-21 18:11:00,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:00,711 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:11:00,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:11:00,712 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:11:00,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:11:00,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:11:00 BoogieIcfgContainer [2018-09-21 18:11:00,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:11:00,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:11:00,718 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:11:00,719 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:11:00,719 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:36" (3/4) ... [2018-09-21 18:11:00,724 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:11:00,731 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_double [2018-09-21 18:11:00,732 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-09-21 18:11:00,732 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:11:00,732 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:11:00,739 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-09-21 18:11:00,740 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-09-21 18:11:00,740 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:11:00,813 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:11:00,813 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:11:00,815 INFO L168 Benchmark]: Toolchain (without parser) took 26477.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Free memory was 943.8 MB in the beginning and 1.2 GB in the end (delta: -236.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:11:00,816 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:11:00,816 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.01 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 933.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:00,817 INFO L168 Benchmark]: Boogie Preprocessor took 58.62 ms. Allocated memory is still 1.0 GB. Free memory was 933.0 MB in the beginning and 927.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:00,819 INFO L168 Benchmark]: RCFGBuilder took 2211.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -176.7 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:00,819 INFO L168 Benchmark]: TraceAbstraction took 23732.94 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -83.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:11:00,820 INFO L168 Benchmark]: Witness Printer took 95.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:00,826 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 369.01 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 933.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.62 ms. Allocated memory is still 1.0 GB. Free memory was 933.0 MB in the beginning and 927.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2211.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -176.7 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 23732.94 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -83.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 95.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 93]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 68 locations, 1 error locations. SAFE Result, 23.6s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 19.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 284 SDtfs, 440 SDslu, 1143 SDs, 0 SdLazy, 498 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 215 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred 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, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 184 ConstructedInterpolants, 61 QuantifiedInterpolants, 76833 SizeOfPredicates, 24 NumberOfNonLiveVariables, 381 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...