/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1031_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_1031_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 b9e27277237c869a286fcb7699394ad2f7d80117 --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_1031_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 b9e27277237c869a286fcb7699394ad2f7d80117 --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 18:10:08,862 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:10:08,864 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:10:08,877 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:10:08,878 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:10:08,879 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:10:08,881 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:10:08,883 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:10:08,885 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:10:08,886 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:10:08,887 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:10:08,887 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:10:08,888 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:10:08,889 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:10:08,891 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:10:08,891 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:10:08,892 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:10:08,894 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:10:08,896 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:10:08,898 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:10:08,899 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:10:08,901 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:10:08,904 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:10:08,904 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:10:08,904 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:10:08,906 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:10:08,907 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:10:08,908 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:10:08,908 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:10:08,910 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:10:08,910 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:10:08,911 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:10:08,911 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:10:08,911 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:10:08,913 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:10:08,914 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:10:08,914 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:10:08,930 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:10:08,931 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:10:08,932 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:10:08,933 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:10:08,933 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:10:08,933 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:10:08,934 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:10:08,934 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:10:08,934 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:10:08,934 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:10:08,934 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:10:08,934 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:10:08,935 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:10:08,935 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:10:08,935 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:10:08,935 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:10:08,935 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:10:08,937 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:10:08,937 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:10:08,937 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:10:08,937 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:10:08,938 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:10:08,938 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:10:08,938 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:10:08,938 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:10:08,938 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:10:08,939 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:10:08,939 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:10:08,939 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:10:08,939 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 -> b9e27277237c869a286fcb7699394ad2f7d80117 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 18:10:09,013 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:10:09,029 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:10:09,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:10:09,037 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:10:09,038 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:10:09,038 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1031_true-unreach-call.c [2018-09-21 18:10:09,402 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea7dccbd0/0ee25d1f491b4fd596e5dd028a712ecc/FLAGf0f246726 [2018-09-21 18:10:09,580 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:10:09,582 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1031_true-unreach-call.c [2018-09-21 18:10:09,590 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea7dccbd0/0ee25d1f491b4fd596e5dd028a712ecc/FLAGf0f246726 [2018-09-21 18:10:09,607 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea7dccbd0/0ee25d1f491b4fd596e5dd028a712ecc [2018-09-21 18:10:09,611 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:10:09,616 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:10:09,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:10:09,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:10:09,624 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:10:09,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:10:09" (1/1) ... [2018-09-21 18:10:09,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e779ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:09, skipping insertion in model container [2018-09-21 18:10:09,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:10:09" (1/1) ... [2018-09-21 18:10:09,642 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:10:09,879 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:10:09,899 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:10:09,933 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:10:09,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:09 WrapperNode [2018-09-21 18:10:09,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:10:09,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:10:09,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:10:09,980 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:10:09,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:09" (1/1) ... [2018-09-21 18:10:09,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:09" (1/1) ... [2018-09-21 18:10:10,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:09" (1/1) ... [2018-09-21 18:10:10,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:09" (1/1) ... [2018-09-21 18:10:10,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:09" (1/1) ... [2018-09-21 18:10:10,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:09" (1/1) ... [2018-09-21 18:10:10,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:09" (1/1) ... [2018-09-21 18:10:10,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:10:10,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:10:10,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:10:10,058 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:10:10,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:09" (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 18:10:10,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:10:10,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:10:10,220 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:10:10,220 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-09-21 18:10:10,220 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:10:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:10:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:10:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-09-21 18:10:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:10:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:10:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:10:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:10:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:10:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:10:10,223 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:10:10,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:10:10,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:10:10,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:10:10,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:10:10,800 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:10:10,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:10 BoogieIcfgContainer [2018-09-21 18:10:10,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:10:10,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:10:10,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:10:10,806 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:10:10,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:10:09" (1/3) ... [2018-09-21 18:10:10,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33758c38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:10:10, skipping insertion in model container [2018-09-21 18:10:10,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:09" (2/3) ... [2018-09-21 18:10:10,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33758c38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:10:10, skipping insertion in model container [2018-09-21 18:10:10,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:10" (3/3) ... [2018-09-21 18:10:10,812 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1031_true-unreach-call.c [2018-09-21 18:10:10,823 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:10:10,833 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:10:10,877 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:10:10,878 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:10:10,878 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:10:10,878 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:10:10,878 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:10:10,878 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:10:10,878 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:10:10,879 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:10:10,879 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:10:10,897 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2018-09-21 18:10:10,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-21 18:10:10,912 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:10,913 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 18:10:10,916 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:10,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1808211580, now seen corresponding path program 1 times [2018-09-21 18:10:10,924 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:10:10,925 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:10:10,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:10:10,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:10,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:10:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:11,072 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 18:10:11,075 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:11,076 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:10:11,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:10:11,097 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:10:11,098 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:10:11,100 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2018-09-21 18:10:11,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:10:11,121 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions. [2018-09-21 18:10:11,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:10:11,122 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-09-21 18:10:11,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:10:11,137 INFO L225 Difference]: With dead ends: 61 [2018-09-21 18:10:11,137 INFO L226 Difference]: Without dead ends: 57 [2018-09-21 18:10:11,141 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 18:10:11,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-09-21 18:10:11,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-09-21 18:10:11,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-09-21 18:10:11,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2018-09-21 18:10:11,187 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 23 [2018-09-21 18:10:11,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:10:11,188 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2018-09-21 18:10:11,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:10:11,188 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2018-09-21 18:10:11,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-21 18:10:11,190 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:11,190 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 18:10:11,190 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:11,191 INFO L82 PathProgramCache]: Analyzing trace with hash 273977880, now seen corresponding path program 1 times [2018-09-21 18:10:11,191 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:10:11,191 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:10:11,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:10:11,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:11,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:10:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:10:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:10:11,351 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:10:11,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:10:11 BoogieIcfgContainer [2018-09-21 18:10:11,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:10:11,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:10:11,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:10:11,384 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:10:11,384 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:10" (3/4) ... [2018-09-21 18:10:11,390 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:10:11,390 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:10:11,391 INFO L168 Benchmark]: Toolchain (without parser) took 1779.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -135.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:11,393 INFO L168 Benchmark]: CDTParser took 0.20 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 18:10:11,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.00 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:11,395 INFO L168 Benchmark]: Boogie Preprocessor took 78.15 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:11,396 INFO L168 Benchmark]: RCFGBuilder took 743.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -172.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:11,398 INFO L168 Benchmark]: TraceAbstraction took 580.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:11,399 INFO L168 Benchmark]: Witness Printer took 6.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:10:11,404 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 362.00 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 78.15 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 743.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -172.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 580.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Witness Printer took 6.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 79]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 43, overapproximation of bitwiseAnd at line 26. Possible FailurePath: [L74] double x = 0.0 / 0.0; [L75] CALL, EXPR round_double(x) VAL [\old(x)=11] [L18] __int32_t msw, exponent_less_1023; [L19] __uint32_t lsw; VAL [\old(x)=11, x=11] [L21] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=11, ew_u={14:0}, x=11] [L22] FCALL ew_u.value = (x) VAL [\old(x)=11, ew_u={14:0}, x=11] [L23] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=11, ew_u={14:0}, ew_u.parts.msw=3, x=11] [L23] (msw) = ew_u.parts.msw VAL [\old(x)=11, ew_u={14:0}, ew_u.parts.msw=3, msw=3, x=11] [L23] FCALL (msw) = ew_u.parts.msw VAL [(msw) = ew_u.parts.msw=9, \old(x)=11, ew_u={14:0}, ew_u.parts.msw=3, msw=3, x=11] [L24] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=11, ew_u={14:0}, ew_u.parts.lsw=13, msw=3, x=11] [L24] (lsw) = ew_u.parts.lsw VAL [\old(x)=11, ew_u={14:0}, ew_u.parts.lsw=13, lsw=13, msw=3, x=11] [L24] FCALL (lsw) = ew_u.parts.lsw VAL [(lsw) = ew_u.parts.lsw=12, \old(x)=11, ew_u={14:0}, ew_u.parts.lsw=13, lsw=13, msw=3, x=11] [L25] COND FALSE !(0) VAL [\old(x)=11, lsw=13, msw=3, x=11] [L26] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=11, exponent_less_1023=1024, lsw=13, msw=3, x=11] [L27] COND FALSE !(exponent_less_1023 < 20) VAL [\old(x)=11, exponent_less_1023=1024, lsw=13, msw=3, x=11] [L41] COND TRUE exponent_less_1023 > 51 VAL [\old(x)=11, exponent_less_1023=1024, lsw=13, msw=3, x=11] [L42] COND TRUE exponent_less_1023 == 1024 [L43] RET return x + x; VAL [\old(x)=11, exponent_less_1023=1024, lsw=13, msw=3, x=11] [L75] EXPR round_double(x) VAL [round_double(x)=15, x=11] [L75] double res = round_double(x); [L78] CALL, EXPR isnan_double(res) VAL [\old(x)=15] [L15] RET return x != x; VAL [\old(x)=15, \result=0, x=15] [L78] EXPR isnan_double(res) VAL [isnan_double(res)=0, res=15, x=11] [L78] COND TRUE !isnan_double(res) [L79] __VERIFIER_error() VAL [res=15, x=11] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 61 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 68 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=61occurred 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 18:10:13,815 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:10:13,818 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:10:13,836 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:10:13,837 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:10:13,838 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:10:13,840 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:10:13,843 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:10:13,845 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:10:13,852 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:10:13,853 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:10:13,853 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:10:13,859 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:10:13,860 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:10:13,862 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:10:13,863 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:10:13,866 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:10:13,868 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:10:13,875 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:10:13,876 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:10:13,879 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:10:13,881 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:10:13,884 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:10:13,888 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:10:13,889 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:10:13,890 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:10:13,892 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:10:13,893 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:10:13,894 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:10:13,896 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:10:13,899 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:10:13,900 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:10:13,900 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:10:13,902 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:10:13,903 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:10:13,905 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:10:13,907 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:10:13,930 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:10:13,931 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:10:13,931 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:10:13,932 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:10:13,933 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:10:13,933 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:10:13,933 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:10:13,934 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:10:13,934 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:10:13,934 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:10:13,934 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:10:13,934 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:10:13,934 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:10:13,935 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:10:13,935 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:10:13,935 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:10:13,935 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:10:13,935 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:10:13,935 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:10:13,936 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:10:13,936 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:10:13,936 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:10:13,936 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:10:13,936 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:10:13,937 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:10:13,937 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:10:13,937 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:10:13,937 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:10:13,937 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:10:13,937 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:10:13,938 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:10:13,938 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 -> b9e27277237c869a286fcb7699394ad2f7d80117 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 18:10:14,018 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:10:14,032 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:10:14,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:10:14,037 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:10:14,038 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:10:14,039 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1031_true-unreach-call.c [2018-09-21 18:10:14,406 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a7ffea79/0bb42ae051fb4beaaa4c103d851d3246/FLAGeb0116f2d [2018-09-21 18:10:14,562 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:10:14,563 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1031_true-unreach-call.c [2018-09-21 18:10:14,571 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a7ffea79/0bb42ae051fb4beaaa4c103d851d3246/FLAGeb0116f2d [2018-09-21 18:10:14,587 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a7ffea79/0bb42ae051fb4beaaa4c103d851d3246 [2018-09-21 18:10:14,591 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:10:14,595 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:10:14,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:10:14,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:10:14,605 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:10:14,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:10:14" (1/1) ... [2018-09-21 18:10:14,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@590e5b4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:14, skipping insertion in model container [2018-09-21 18:10:14,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:10:14" (1/1) ... [2018-09-21 18:10:14,624 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:10:14,900 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:10:14,920 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:10:14,944 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:10:15,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:15 WrapperNode [2018-09-21 18:10:15,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:10:15,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:10:15,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:10:15,008 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:10:15,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:15" (1/1) ... [2018-09-21 18:10:15,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:15" (1/1) ... [2018-09-21 18:10:15,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:15" (1/1) ... [2018-09-21 18:10:15,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:15" (1/1) ... [2018-09-21 18:10:15,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:15" (1/1) ... [2018-09-21 18:10:15,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:15" (1/1) ... [2018-09-21 18:10:15,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:15" (1/1) ... [2018-09-21 18:10:15,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:10:15,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:10:15,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:10:15,106 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:10:15,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:15" (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 18:10:15,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:10:15,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:10:15,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:10:15,287 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-09-21 18:10:15,287 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:10:15,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:10:15,288 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:10:15,289 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-09-21 18:10:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:10:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 18:10:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:10:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:10:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:10:15,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 18:10:15,292 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:10:15,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:10:15,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:10:15,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 18:10:15,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:10:15,772 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:10:15,802 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:10:15,824 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:10:16,129 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:10:16,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:16 BoogieIcfgContainer [2018-09-21 18:10:16,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:10:16,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:10:16,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:10:16,136 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:10:16,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:10:14" (1/3) ... [2018-09-21 18:10:16,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36241f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:10:16, skipping insertion in model container [2018-09-21 18:10:16,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:15" (2/3) ... [2018-09-21 18:10:16,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36241f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:10:16, skipping insertion in model container [2018-09-21 18:10:16,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:16" (3/3) ... [2018-09-21 18:10:16,140 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1031_true-unreach-call.c [2018-09-21 18:10:16,152 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:10:16,163 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:10:16,215 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:10:16,216 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:10:16,217 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:10:16,217 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:10:16,217 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:10:16,217 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:10:16,217 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:10:16,218 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:10:16,218 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:10:16,238 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2018-09-21 18:10:16,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-21 18:10:16,252 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:16,254 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 18:10:16,257 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:16,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1895794015, now seen corresponding path program 1 times [2018-09-21 18:10:16,270 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:10:16,270 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 18:10:16,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:16,375 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:10:16,407 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 18:10:16,411 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:10:16,432 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:16,432 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:10:16,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:10:16,459 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:10:16,460 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:10:16,464 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2018-09-21 18:10:16,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:10:16,502 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2018-09-21 18:10:16,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:10:16,504 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-21 18:10:16,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:10:16,524 INFO L225 Difference]: With dead ends: 60 [2018-09-21 18:10:16,524 INFO L226 Difference]: Without dead ends: 56 [2018-09-21 18:10:16,528 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 18:10:16,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-09-21 18:10:16,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-09-21 18:10:16,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-09-21 18:10:16,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2018-09-21 18:10:16,595 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 22 [2018-09-21 18:10:16,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:10:16,597 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2018-09-21 18:10:16,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:10:16,597 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2018-09-21 18:10:16,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-21 18:10:16,601 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:16,601 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 18:10:16,602 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:16,602 INFO L82 PathProgramCache]: Analyzing trace with hash -937019230, now seen corresponding path program 1 times [2018-09-21 18:10:16,604 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:10:16,605 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 18:10:16,613 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 18:10:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:16,734 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:10:17,216 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 18:10:17,216 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:10:17,229 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:17,230 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:10:17,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:10:17,232 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:10:17,233 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:10:17,233 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand 9 states. [2018-09-21 18:10:18,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:10:18,290 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2018-09-21 18:10:18,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-21 18:10:18,292 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-09-21 18:10:18,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:10:18,295 INFO L225 Difference]: With dead ends: 63 [2018-09-21 18:10:18,296 INFO L226 Difference]: Without dead ends: 58 [2018-09-21 18:10:18,297 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 18:10:18,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-09-21 18:10:18,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2018-09-21 18:10:18,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-09-21 18:10:18,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2018-09-21 18:10:18,310 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 35 [2018-09-21 18:10:18,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:10:18,310 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2018-09-21 18:10:18,310 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:10:18,311 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2018-09-21 18:10:18,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-21 18:10:18,312 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:18,312 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 18:10:18,313 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:18,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1239227025, now seen corresponding path program 1 times [2018-09-21 18:10:18,314 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:10:18,314 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 18:10:18,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:18,430 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:10:19,194 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-09-21 18:10:20,425 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 18:10:20,426 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:10:20,445 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:20,446 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:10:20,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:10:20,448 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:10:20,449 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:10:20,449 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 9 states. [2018-09-21 18:10:21,896 WARN L178 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-21 18:10:23,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:10:23,151 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2018-09-21 18:10:23,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-21 18:10:23,154 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-09-21 18:10:23,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:10:23,155 INFO L225 Difference]: With dead ends: 61 [2018-09-21 18:10:23,156 INFO L226 Difference]: Without dead ends: 55 [2018-09-21 18:10:23,156 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 18:10:23,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-09-21 18:10:23,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-09-21 18:10:23,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-09-21 18:10:23,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2018-09-21 18:10:23,163 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 35 [2018-09-21 18:10:23,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:10:23,164 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2018-09-21 18:10:23,164 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:10:23,164 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2018-09-21 18:10:23,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-21 18:10:23,166 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:23,166 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 18:10:23,166 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:23,167 INFO L82 PathProgramCache]: Analyzing trace with hash -185050370, now seen corresponding path program 1 times [2018-09-21 18:10:23,167 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:10:23,167 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 18:10:23,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:23,280 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:10:23,350 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 18:10:23,356 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 18:10:23,357 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:10:23,364 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:10:23,382 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 18:10:23,383 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:10:23,431 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 18:10:23,438 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 18:10:23,438 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:10:23,445 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:10:23,457 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 18:10:23,457 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:10:23,965 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 18:10:23,965 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:10:23,980 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:23,981 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:10:23,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:10:23,982 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:10:23,982 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:10:23,983 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 9 states. [2018-09-21 18:10:26,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:10:26,216 INFO L93 Difference]: Finished difference Result 86 states and 88 transitions. [2018-09-21 18:10:26,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-21 18:10:26,219 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2018-09-21 18:10:26,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:10:26,222 INFO L225 Difference]: With dead ends: 86 [2018-09-21 18:10:26,222 INFO L226 Difference]: Without dead ends: 67 [2018-09-21 18:10:26,223 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2018-09-21 18:10:26,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-09-21 18:10:26,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 51. [2018-09-21 18:10:26,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-21 18:10:26,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-09-21 18:10:26,230 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 48 [2018-09-21 18:10:26,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:10:26,231 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-09-21 18:10:26,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:10:26,231 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-09-21 18:10:26,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-21 18:10:26,234 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:26,234 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, 1] [2018-09-21 18:10:26,234 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:26,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1838898163, now seen corresponding path program 1 times [2018-09-21 18:10:26,236 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:10:26,236 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 18:10:26,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:26,332 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:10:26,367 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 18:10:26,372 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 18:10:26,372 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:10:26,377 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:10:26,393 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 18:10:26,394 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:10:26,439 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 18:10:26,445 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 18:10:26,445 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:10:26,449 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:10:26,459 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 18:10:26,460 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:10:26,853 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 18:10:26,854 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:10:26,869 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:26,870 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:10:26,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:10:26,871 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:10:26,871 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:10:26,872 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 10 states. [2018-09-21 18:10:27,834 WARN L178 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 18:10:28,797 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2018-09-21 18:10:29,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:10:29,420 INFO L93 Difference]: Finished difference Result 59 states and 58 transitions. [2018-09-21 18:10:29,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 18:10:29,422 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2018-09-21 18:10:29,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:10:29,422 INFO L225 Difference]: With dead ends: 59 [2018-09-21 18:10:29,423 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:10:29,423 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2018-09-21 18:10:29,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:10:29,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:10:29,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:10:29,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:10:29,424 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2018-09-21 18:10:29,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:10:29,425 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:10:29,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:10:29,425 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:10:29,425 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:10:29,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:10:29 BoogieIcfgContainer [2018-09-21 18:10:29,434 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:10:29,434 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:10:29,437 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:10:29,438 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:10:29,438 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:16" (3/4) ... [2018-09-21 18:10:29,444 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:10:29,456 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-09-21 18:10:29,457 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:10:29,457 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure round_double [2018-09-21 18:10:29,457 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:10:29,464 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-09-21 18:10:29,465 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-09-21 18:10:29,465 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:10:29,554 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:10:29,556 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:10:29,559 INFO L168 Benchmark]: Toolchain (without parser) took 14967.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 951.8 MB in the beginning and 813.4 MB in the end (delta: 138.4 MB). Peak memory consumption was 266.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:29,561 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:10:29,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.83 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:29,564 INFO L168 Benchmark]: Boogie Preprocessor took 98.35 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:29,565 INFO L168 Benchmark]: RCFGBuilder took 1024.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -155.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:29,565 INFO L168 Benchmark]: TraceAbstraction took 13302.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 820.3 MB in the end (delta: 270.6 MB). Peak memory consumption was 270.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:29,566 INFO L168 Benchmark]: Witness Printer took 124.08 ms. Allocated memory is still 1.2 GB. Free memory is still 813.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:10:29,574 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 410.83 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 98.35 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1024.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -155.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13302.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 820.3 MB in the end (delta: 270.6 MB). Peak memory consumption was 270.6 MB. Max. memory is 11.5 GB. * Witness Printer took 124.08 ms. Allocated memory is still 1.2 GB. Free memory is still 813.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 79]: 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, 60 locations, 1 error locations. SAFE Result, 13.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 8.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 259 SDtfs, 263 SDslu, 1070 SDs, 0 SdLazy, 332 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 215 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred 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, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 185 ConstructedInterpolants, 62 QuantifiedInterpolants, 79272 SizeOfPredicates, 24 NumberOfNonLiveVariables, 375 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...