/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1232a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1232a_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 cd0c8f7b91fa815011541d5ffb41102d34132ba8 ................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1232a_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 cd0c8f7b91fa815011541d5ffb41102d34132ba8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:31:44,931 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:31:44,933 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:31:44,945 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:31:44,946 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:31:44,947 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:31:44,949 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:31:44,951 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:31:44,953 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:31:44,954 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:31:44,955 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:31:44,955 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:31:44,956 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:31:44,958 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:31:44,959 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:31:44,960 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:31:44,961 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:31:44,963 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:31:44,965 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:31:44,967 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:31:44,968 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:31:44,970 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:31:44,972 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:31:44,973 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:31:44,973 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:31:44,974 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:31:44,975 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:31:44,976 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:31:44,977 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:31:44,979 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:31:44,979 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:31:44,980 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:31:44,980 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:31:44,981 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:31:44,982 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:31:44,983 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:31:44,983 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:31:45,000 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:31:45,000 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:31:45,001 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:31:45,001 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:31:45,002 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:31:45,003 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:31:45,003 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:31:45,003 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:31:45,003 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:31:45,003 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:31:45,004 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:31:45,004 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:31:45,004 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:31:45,004 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:31:45,004 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:31:45,005 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:31:45,006 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:31:45,006 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:31:45,006 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:31:45,006 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:31:45,007 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:31:45,007 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:31:45,007 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:31:45,008 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:31:45,008 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:31:45,008 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:31:45,008 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:31:45,008 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:31:45,009 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:31:45,009 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 -> cd0c8f7b91fa815011541d5ffb41102d34132ba8 [2018-09-20 15:31:45,058 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:31:45,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:31:45,075 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:31:45,077 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:31:45,077 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:31:45,078 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1232a_true-unreach-call.c [2018-09-20 15:31:45,442 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58250e0c6/6f708b2c05e1412089fe3d0d957d622e/FLAG1e33d275f [2018-09-20 15:31:45,610 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:31:45,610 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1232a_true-unreach-call.c [2018-09-20 15:31:45,618 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58250e0c6/6f708b2c05e1412089fe3d0d957d622e/FLAG1e33d275f [2018-09-20 15:31:45,635 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58250e0c6/6f708b2c05e1412089fe3d0d957d622e [2018-09-20 15:31:45,640 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:31:45,644 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:31:45,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:31:45,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:31:45,654 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:31:45,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:31:45" (1/1) ... [2018-09-20 15:31:45,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17bd2d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:45, skipping insertion in model container [2018-09-20 15:31:45,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:31:45" (1/1) ... [2018-09-20 15:31:45,673 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:31:45,896 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:31:45,914 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:31:45,931 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:31:45,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:45 WrapperNode [2018-09-20 15:31:45,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:31:45,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:31:45,960 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:31:45,960 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:31:45,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:45" (1/1) ... [2018-09-20 15:31:45,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:45" (1/1) ... [2018-09-20 15:31:45,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:45" (1/1) ... [2018-09-20 15:31:45,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:45" (1/1) ... [2018-09-20 15:31:46,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:45" (1/1) ... [2018-09-20 15:31:46,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:45" (1/1) ... [2018-09-20 15:31:46,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:45" (1/1) ... [2018-09-20 15:31:46,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:31:46,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:31:46,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:31:46,035 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:31:46,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:31:46,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:31:46,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:31:46,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2018-09-20 15:31:46,112 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2018-09-20 15:31:46,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-20 15:31:46,112 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:31:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:31:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:31:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2018-09-20 15:31:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:31:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:31:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:31:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:31:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2018-09-20 15:31:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-20 15:31:46,114 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:31:46,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:31:46,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:31:46,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:31:46,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:31:46,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:31:46,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:31:46,727 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:31:46,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:31:46 BoogieIcfgContainer [2018-09-20 15:31:46,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:31:46,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:31:46,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:31:46,734 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:31:46,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:31:45" (1/3) ... [2018-09-20 15:31:46,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2a8eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:31:46, skipping insertion in model container [2018-09-20 15:31:46,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:45" (2/3) ... [2018-09-20 15:31:46,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2a8eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:31:46, skipping insertion in model container [2018-09-20 15:31:46,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:31:46" (3/3) ... [2018-09-20 15:31:46,739 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1232a_true-unreach-call.c [2018-09-20 15:31:46,750 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:31:46,759 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:31:46,805 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:31:46,806 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:31:46,806 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:31:46,807 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:31:46,807 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:31:46,807 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:31:46,807 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:31:46,807 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:31:46,807 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:31:46,828 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2018-09-20 15:31:46,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-20 15:31:46,838 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:46,839 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] [2018-09-20 15:31:46,841 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:46,847 INFO L82 PathProgramCache]: Analyzing trace with hash 969493283, now seen corresponding path program 1 times [2018-09-20 15:31:46,849 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:31:46,850 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:31:46,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:31:46,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:46,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:31:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:47,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:31:47,008 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:47,008 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:31:47,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:31:47,029 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:31:47,030 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:31:47,033 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2018-09-20 15:31:47,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:47,066 INFO L93 Difference]: Finished difference Result 111 states and 139 transitions. [2018-09-20 15:31:47,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:31:47,068 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-20 15:31:47,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:47,081 INFO L225 Difference]: With dead ends: 111 [2018-09-20 15:31:47,081 INFO L226 Difference]: Without dead ends: 56 [2018-09-20 15:31:47,086 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:31:47,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-09-20 15:31:47,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-09-20 15:31:47,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-09-20 15:31:47,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2018-09-20 15:31:47,139 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 22 [2018-09-20 15:31:47,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:47,141 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2018-09-20 15:31:47,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:31:47,141 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2018-09-20 15:31:47,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-20 15:31:47,144 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:47,144 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:31:47,145 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:47,145 INFO L82 PathProgramCache]: Analyzing trace with hash -228670553, now seen corresponding path program 1 times [2018-09-20 15:31:47,145 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:31:47,146 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:31:47,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:31:47,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:47,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:31:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:47,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:31:47,274 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:47,274 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-20 15:31:47,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-20 15:31:47,277 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-20 15:31:47,277 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:47,277 INFO L87 Difference]: Start difference. First operand 56 states and 64 transitions. Second operand 4 states. [2018-09-20 15:31:47,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:47,384 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2018-09-20 15:31:47,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-20 15:31:47,385 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2018-09-20 15:31:47,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:47,389 INFO L225 Difference]: With dead ends: 83 [2018-09-20 15:31:47,389 INFO L226 Difference]: Without dead ends: 60 [2018-09-20 15:31:47,391 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:47,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-09-20 15:31:47,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-09-20 15:31:47,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-09-20 15:31:47,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2018-09-20 15:31:47,404 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 31 [2018-09-20 15:31:47,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:47,405 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2018-09-20 15:31:47,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-20 15:31:47,405 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2018-09-20 15:31:47,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-20 15:31:47,407 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:47,407 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] [2018-09-20 15:31:47,408 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:47,408 INFO L82 PathProgramCache]: Analyzing trace with hash 738637230, now seen corresponding path program 1 times [2018-09-20 15:31:47,408 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:31:47,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:31:47,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:31:47,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:47,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:31:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:47,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:31:47,554 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:47,554 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-20 15:31:47,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-20 15:31:47,555 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-20 15:31:47,555 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:47,555 INFO L87 Difference]: Start difference. First operand 60 states and 69 transitions. Second operand 4 states. [2018-09-20 15:31:47,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:47,752 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2018-09-20 15:31:47,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-20 15:31:47,756 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-09-20 15:31:47,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:47,758 INFO L225 Difference]: With dead ends: 87 [2018-09-20 15:31:47,758 INFO L226 Difference]: Without dead ends: 64 [2018-09-20 15:31:47,760 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:47,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-09-20 15:31:47,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 60. [2018-09-20 15:31:47,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-09-20 15:31:47,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2018-09-20 15:31:47,783 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 34 [2018-09-20 15:31:47,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:47,784 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2018-09-20 15:31:47,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-20 15:31:47,784 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2018-09-20 15:31:47,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-20 15:31:47,785 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:47,785 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] [2018-09-20 15:31:47,787 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:47,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1058314129, now seen corresponding path program 1 times [2018-09-20 15:31:47,788 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:31:47,788 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:31:47,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:31:47,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:47,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:31:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:31:47,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:31:47,881 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:31:47,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:31:47 BoogieIcfgContainer [2018-09-20 15:31:47,919 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:31:47,919 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:31:47,920 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:31:47,920 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:31:47,920 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:31:46" (3/4) ... [2018-09-20 15:31:47,924 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:31:47,924 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:31:47,925 INFO L168 Benchmark]: Toolchain (without parser) took 2284.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -121.0 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2018-09-20 15:31:47,927 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:31:47,928 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.26 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:31:47,929 INFO L168 Benchmark]: Boogie Preprocessor took 72.15 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:31:47,930 INFO L168 Benchmark]: RCFGBuilder took 696.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:31:47,931 INFO L168 Benchmark]: TraceAbstraction took 1189.58 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: 48.1 MB). Peak memory consumption was 48.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:31:47,933 INFO L168 Benchmark]: Witness Printer took 4.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:31:47,937 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 313.26 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 72.15 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 696.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1189.58 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: 48.1 MB). Peak memory consumption was 48.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.92 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: 70]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 69, overapproximation of someUnaryFLOAToperation at line 65. Possible FailurePath: [L64] float x = 0.0f; [L65] float y = -0.0f; VAL [x=0] [L66] CALL, EXPR fmin_float(x, y) VAL [\old(x)=0, \old(y)=2139095043] [L36] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=0] [L13] __uint32_t w; VAL [\old(x)=0, x=0] [L16] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=0, gf_u={2139095046:0}, x=0] [L17] FCALL gf_u.value = (x) VAL [\old(x)=0, gf_u={2139095046:0}, x=0] [L18] EXPR, FCALL gf_u.word VAL [\old(x)=0, gf_u={2139095046:0}, gf_u.word=2139095041, x=0] [L18] (w) = gf_u.word VAL [\old(x)=0, gf_u={2139095046:0}, gf_u.word=2139095041, w=2139095041, x=0] [L18] FCALL (w) = gf_u.word VAL [(w) = gf_u.word=2139095044, \old(x)=0, gf_u={2139095046:0}, gf_u.word=2139095041, w=2139095041, x=0] [L19] COND FALSE !(0) VAL [\old(x)=0, w=2139095041, x=0] [L21] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=0, w=2139095041, x=0] [L23-L24] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=0, w=2139095041, x=0] [L26-L27] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=0, w=2139095041, x=0] [L29] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L32] RET return 0; VAL [\old(x)=0, \result=0, w=2139095041, x=0] [L36] EXPR __fpclassify_float(x) VAL [\old(x)=0, \old(y)=2139095043, __fpclassify_float(x)=0, x=0, y=2139095043] [L36] COND TRUE __fpclassify_float(x) == 0 [L37] RET return y; VAL [\old(x)=0, \old(y)=2139095043, \result=2139095043, x=0, y=2139095043] [L66] EXPR fmin_float(x, y) VAL [fmin_float(x, y)=2139095043, x=0, y=2139095043] [L66] float res = fmin_float(x, y); [L69] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=2139095043, res == -0.0f && __signbit_float(res) == 1=0, x=0, y=2139095043] [L69] COND FALSE, EXPR !(res == -0.0f && __signbit_float(res) == 1) VAL [res=2139095043, res == -0.0f && __signbit_float(res) == 1=0, x=0, y=2139095043] [L69] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L70] __VERIFIER_error() VAL [res=2139095043, x=0, y=2139095043] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 60 locations, 1 error locations. UNSAFE Result, 1.1s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 197 SDtfs, 0 SDslu, 242 SDs, 0 SdLazy, 21 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 2934 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 15:31:50,315 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:31:50,317 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:31:50,336 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:31:50,337 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:31:50,338 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:31:50,339 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:31:50,343 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:31:50,344 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:31:50,345 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:31:50,346 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:31:50,346 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:31:50,347 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:31:50,348 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:31:50,349 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:31:50,350 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:31:50,351 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:31:50,353 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:31:50,355 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:31:50,357 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:31:50,359 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:31:50,360 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:31:50,363 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:31:50,363 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:31:50,363 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:31:50,365 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:31:50,366 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:31:50,367 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:31:50,368 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:31:50,369 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:31:50,369 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:31:50,370 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:31:50,370 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:31:50,371 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:31:50,372 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:31:50,373 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:31:50,373 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:31:50,396 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:31:50,396 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:31:50,397 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:31:50,397 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:31:50,398 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:31:50,398 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:31:50,399 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:31:50,399 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:31:50,399 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:31:50,399 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:31:50,399 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:31:50,400 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:31:50,400 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:31:50,400 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:31:50,400 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:31:50,400 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:31:50,402 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:31:50,402 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:31:50,402 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:31:50,402 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:31:50,403 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:31:50,403 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:31:50,403 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:31:50,403 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:31:50,404 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:31:50,404 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:31:50,404 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:31:50,404 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:31:50,404 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:31:50,404 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:31:50,405 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:31:50,405 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 -> cd0c8f7b91fa815011541d5ffb41102d34132ba8 [2018-09-20 15:31:50,457 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:31:50,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:31:50,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:31:50,476 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:31:50,477 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:31:50,478 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1232a_true-unreach-call.c [2018-09-20 15:31:50,835 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1df105863/9cd605532ce24dc790ca13a255dbf5bd/FLAG3d805c10b [2018-09-20 15:31:50,990 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:31:50,991 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1232a_true-unreach-call.c [2018-09-20 15:31:50,998 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1df105863/9cd605532ce24dc790ca13a255dbf5bd/FLAG3d805c10b [2018-09-20 15:31:51,018 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1df105863/9cd605532ce24dc790ca13a255dbf5bd [2018-09-20 15:31:51,022 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:31:51,026 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:31:51,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:31:51,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:31:51,034 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:31:51,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:31:51" (1/1) ... [2018-09-20 15:31:51,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b3c5295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:51, skipping insertion in model container [2018-09-20 15:31:51,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:31:51" (1/1) ... [2018-09-20 15:31:51,052 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:31:51,360 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:31:51,381 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:31:51,407 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:31:51,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:51 WrapperNode [2018-09-20 15:31:51,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:31:51,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:31:51,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:31:51,449 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:31:51,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:51" (1/1) ... [2018-09-20 15:31:51,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:51" (1/1) ... [2018-09-20 15:31:51,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:51" (1/1) ... [2018-09-20 15:31:51,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:51" (1/1) ... [2018-09-20 15:31:51,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:51" (1/1) ... [2018-09-20 15:31:51,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:51" (1/1) ... [2018-09-20 15:31:51,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:51" (1/1) ... [2018-09-20 15:31:51,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:31:51,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:31:51,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:31:51,501 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:31:51,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:31:51,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:31:51,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:31:51,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2018-09-20 15:31:51,683 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2018-09-20 15:31:51,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-20 15:31:51,684 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:31:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:31:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:31:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2018-09-20 15:31:51,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:31:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:31:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:31:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:31:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2018-09-20 15:31:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-20 15:31:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:31:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:31:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:31:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:31:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:31:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:31:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:31:52,153 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:31:52,176 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:31:52,281 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:31:52,294 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:31:52,305 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:31:52,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:31:52 BoogieIcfgContainer [2018-09-20 15:31:52,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:31:52,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:31:52,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:31:52,311 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:31:52,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:31:51" (1/3) ... [2018-09-20 15:31:52,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e54b362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:31:52, skipping insertion in model container [2018-09-20 15:31:52,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:31:51" (2/3) ... [2018-09-20 15:31:52,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e54b362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:31:52, skipping insertion in model container [2018-09-20 15:31:52,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:31:52" (3/3) ... [2018-09-20 15:31:52,317 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1232a_true-unreach-call.c [2018-09-20 15:31:52,328 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:31:52,337 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:31:52,383 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:31:52,384 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:31:52,384 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:31:52,384 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:31:52,384 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:31:52,385 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:31:52,385 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:31:52,385 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:31:52,385 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:31:52,407 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-09-20 15:31:52,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-20 15:31:52,416 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:52,417 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:31:52,420 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:52,426 INFO L82 PathProgramCache]: Analyzing trace with hash 430535463, now seen corresponding path program 1 times [2018-09-20 15:31:52,430 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:31:52,431 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 15:31:52,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:52,499 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:31:52,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:31:52,519 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:31:52,535 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:52,535 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:31:52,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:31:52,554 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:31:52,554 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:31:52,557 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2018-09-20 15:31:52,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:52,590 INFO L93 Difference]: Finished difference Result 107 states and 135 transitions. [2018-09-20 15:31:52,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:31:52,592 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-20 15:31:52,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:52,604 INFO L225 Difference]: With dead ends: 107 [2018-09-20 15:31:52,604 INFO L226 Difference]: Without dead ends: 54 [2018-09-20 15:31:52,609 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:31:52,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-09-20 15:31:52,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-09-20 15:31:52,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-09-20 15:31:52,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2018-09-20 15:31:52,659 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 21 [2018-09-20 15:31:52,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:52,660 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2018-09-20 15:31:52,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:31:52,660 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2018-09-20 15:31:52,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-20 15:31:52,666 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:52,667 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:31:52,667 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:52,668 INFO L82 PathProgramCache]: Analyzing trace with hash 973147503, now seen corresponding path program 1 times [2018-09-20 15:31:52,669 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:31:52,669 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-20 15:31:52,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 15:31:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:52,750 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:31:52,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:31:52,846 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:31:52,862 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:52,862 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-20 15:31:52,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-20 15:31:52,864 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-20 15:31:52,867 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:52,867 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand 4 states. [2018-09-20 15:31:52,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:52,989 INFO L93 Difference]: Finished difference Result 80 states and 90 transitions. [2018-09-20 15:31:52,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-20 15:31:52,990 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-09-20 15:31:52,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:52,994 INFO L225 Difference]: With dead ends: 80 [2018-09-20 15:31:52,994 INFO L226 Difference]: Without dead ends: 57 [2018-09-20 15:31:52,996 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:52,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-09-20 15:31:53,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-09-20 15:31:53,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-09-20 15:31:53,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 66 transitions. [2018-09-20 15:31:53,009 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 66 transitions. Word has length 30 [2018-09-20 15:31:53,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:53,010 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 66 transitions. [2018-09-20 15:31:53,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-20 15:31:53,010 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 66 transitions. [2018-09-20 15:31:53,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-20 15:31:53,011 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:53,011 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:31:53,012 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:53,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1744180640, now seen corresponding path program 1 times [2018-09-20 15:31:53,014 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:31:53,014 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 15:31:53,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:53,087 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:31:53,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:31:53,207 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:31:53,207 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:31:53,212 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:31:53,232 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:31:53,232 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:31:53,289 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:31:53,294 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:31:53,295 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:31:53,298 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:31:53,301 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:31:53,302 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:31:53,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:31:53,742 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:31:53,759 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:53,759 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-20 15:31:53,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-20 15:31:53,760 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-20 15:31:53,760 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-09-20 15:31:53,761 INFO L87 Difference]: Start difference. First operand 57 states and 66 transitions. Second operand 10 states. [2018-09-20 15:31:55,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:55,485 INFO L93 Difference]: Finished difference Result 84 states and 97 transitions. [2018-09-20 15:31:55,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:31:55,486 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2018-09-20 15:31:55,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:55,488 INFO L225 Difference]: With dead ends: 84 [2018-09-20 15:31:55,489 INFO L226 Difference]: Without dead ends: 56 [2018-09-20 15:31:55,490 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2018-09-20 15:31:55,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-09-20 15:31:55,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-09-20 15:31:55,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-09-20 15:31:55,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2018-09-20 15:31:55,500 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 31 [2018-09-20 15:31:55,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:55,501 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2018-09-20 15:31:55,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-20 15:31:55,502 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2018-09-20 15:31:55,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-20 15:31:55,503 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:55,504 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:31:55,504 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:55,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1143554021, now seen corresponding path program 1 times [2018-09-20 15:31:55,506 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:31:55,506 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-20 15:31:55,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:55,571 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:31:55,601 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-09-20 15:31:55,601 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:31:55,616 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:55,616 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-20 15:31:55,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-20 15:31:55,617 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-20 15:31:55,617 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:55,617 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand 4 states. [2018-09-20 15:31:55,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:55,647 INFO L93 Difference]: Finished difference Result 80 states and 88 transitions. [2018-09-20 15:31:55,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-20 15:31:55,648 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2018-09-20 15:31:55,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:55,650 INFO L225 Difference]: With dead ends: 80 [2018-09-20 15:31:55,650 INFO L226 Difference]: Without dead ends: 57 [2018-09-20 15:31:55,651 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:31:55,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-09-20 15:31:55,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-09-20 15:31:55,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-09-20 15:31:55,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2018-09-20 15:31:55,663 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 46 [2018-09-20 15:31:55,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:55,664 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2018-09-20 15:31:55,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-20 15:31:55,664 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2018-09-20 15:31:55,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-20 15:31:55,667 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:55,667 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:31:55,667 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:55,668 INFO L82 PathProgramCache]: Analyzing trace with hash -113422118, now seen corresponding path program 1 times [2018-09-20 15:31:55,668 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:31:55,668 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 [2018-09-20 15:31:55,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:55,734 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:31:55,788 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:31:55,793 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:31:55,794 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:31:55,797 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:31:55,809 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:31:55,810 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:31:55,876 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:31:55,880 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:31:55,880 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:31:55,883 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:31:55,889 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:31:55,889 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:31:56,057 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-09-20 15:31:56,058 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:31:56,073 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:56,073 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-20 15:31:56,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-20 15:31:56,074 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-20 15:31:56,074 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-09-20 15:31:56,074 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand 10 states. [2018-09-20 15:31:57,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:57,152 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2018-09-20 15:31:57,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:31:57,155 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 47 [2018-09-20 15:31:57,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:57,157 INFO L225 Difference]: With dead ends: 82 [2018-09-20 15:31:57,157 INFO L226 Difference]: Without dead ends: 51 [2018-09-20 15:31:57,158 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2018-09-20 15:31:57,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-09-20 15:31:57,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-09-20 15:31:57,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-20 15:31:57,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2018-09-20 15:31:57,166 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 47 [2018-09-20 15:31:57,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:57,167 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2018-09-20 15:31:57,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-20 15:31:57,167 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2018-09-20 15:31:57,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-20 15:31:57,169 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:57,170 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:31:57,170 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:57,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1826494496, now seen corresponding path program 1 times [2018-09-20 15:31:57,171 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:31:57,171 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-20 15:31:57,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:57,234 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:31:57,326 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-09-20 15:31:57,326 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:31:57,336 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:57,337 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-20 15:31:57,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-20 15:31:57,337 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-20 15:31:57,338 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-20 15:31:57,338 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand 5 states. [2018-09-20 15:31:57,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:57,438 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2018-09-20 15:31:57,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-20 15:31:57,440 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2018-09-20 15:31:57,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:57,442 INFO L225 Difference]: With dead ends: 75 [2018-09-20 15:31:57,442 INFO L226 Difference]: Without dead ends: 51 [2018-09-20 15:31:57,443 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-20 15:31:57,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-09-20 15:31:57,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-09-20 15:31:57,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-20 15:31:57,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2018-09-20 15:31:57,451 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 48 [2018-09-20 15:31:57,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:57,452 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2018-09-20 15:31:57,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-20 15:31:57,452 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2018-09-20 15:31:57,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-20 15:31:57,454 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:57,454 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:31:57,454 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:57,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1659126174, now seen corresponding path program 1 times [2018-09-20 15:31:57,455 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:31:57,455 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-20 15:31:57,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:57,530 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:31:57,648 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-09-20 15:31:57,648 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:31:57,658 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:57,658 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-20 15:31:57,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-20 15:31:57,659 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-20 15:31:57,659 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-20 15:31:57,660 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 8 states. [2018-09-20 15:31:57,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:57,898 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2018-09-20 15:31:57,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-20 15:31:57,898 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2018-09-20 15:31:57,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:57,900 INFO L225 Difference]: With dead ends: 54 [2018-09-20 15:31:57,900 INFO L226 Difference]: Without dead ends: 51 [2018-09-20 15:31:57,901 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-09-20 15:31:57,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-09-20 15:31:57,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-09-20 15:31:57,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-20 15:31:57,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-09-20 15:31:57,907 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 48 [2018-09-20 15:31:57,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:57,908 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-09-20 15:31:57,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-20 15:31:57,909 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-09-20 15:31:57,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-09-20 15:31:57,910 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:31:57,911 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:31:57,911 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:31:57,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1902635068, now seen corresponding path program 1 times [2018-09-20 15:31:57,911 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:31:57,912 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-09-20 15:31:57,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:31:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:31:57,994 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:31:58,134 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:31:58,138 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:31:58,138 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:31:58,142 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:31:58,153 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:31:58,154 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:31:58,190 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:31:58,196 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:31:58,197 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:31:58,204 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:31:58,207 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:31:58,207 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:31:58,563 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-09-20 15:31:58,563 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:31:58,574 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:31:58,574 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-20 15:31:58,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-20 15:31:58,575 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-20 15:31:58,575 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-09-20 15:31:58,576 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 15 states. [2018-09-20 15:31:59,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:31:59,739 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2018-09-20 15:31:59,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-20 15:31:59,741 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 64 [2018-09-20 15:31:59,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:31:59,742 INFO L225 Difference]: With dead ends: 51 [2018-09-20 15:31:59,742 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:31:59,743 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=87, Invalid=563, Unknown=0, NotChecked=0, Total=650 [2018-09-20 15:31:59,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:31:59,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:31:59,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:31:59,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:31:59,744 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2018-09-20 15:31:59,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:31:59,744 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:31:59,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-20 15:31:59,744 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:31:59,744 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:31:59,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:32:00,072 INFO L429 ceAbstractionStarter]: At program point fmin_floatENTRY(lines 35 42) the Hoare annotation is: true [2018-09-20 15:32:00,072 INFO L426 ceAbstractionStarter]: For program point fmin_floatEXIT(lines 35 42) no Hoare annotation was computed. [2018-09-20 15:32:00,072 INFO L426 ceAbstractionStarter]: For program point fmin_floatFINAL(lines 35 42) no Hoare annotation was computed. [2018-09-20 15:32:00,072 INFO L426 ceAbstractionStarter]: For program point L41(line 41) no Hoare annotation was computed. [2018-09-20 15:32:00,072 INFO L426 ceAbstractionStarter]: For program point L41-2(line 41) no Hoare annotation was computed. [2018-09-20 15:32:00,073 INFO L422 ceAbstractionStarter]: At program point L38(line 38) the Hoare annotation is: (let ((.cse0 (= fmin_float_~x |fmin_float_#in~x|))) (or (and .cse0 (exists ((__fpclassify_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __fpclassify_float_~w~0) ((_ extract 30 23) __fpclassify_float_~w~0) ((_ extract 22 0) __fpclassify_float_~w~0)) |fmin_float_#in~x|) (not (= __fpclassify_float_~w~0 (_ bv0 32)))))) (and .cse0 (= fmin_float_~y |fmin_float_#in~y|)))) [2018-09-20 15:32:00,073 INFO L426 ceAbstractionStarter]: For program point L38-1(lines 38 39) no Hoare annotation was computed. [2018-09-20 15:32:00,073 INFO L422 ceAbstractionStarter]: At program point L36(line 36) the Hoare annotation is: (and (= fmin_float_~x |fmin_float_#in~x|) (= fmin_float_~y |fmin_float_#in~y|)) [2018-09-20 15:32:00,073 INFO L426 ceAbstractionStarter]: For program point L36-1(lines 36 37) no Hoare annotation was computed. [2018-09-20 15:32:00,073 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:32:00,073 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:32:00,074 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:32:00,074 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:32:00,075 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:32:00,075 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:32:00,075 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:32:00,075 INFO L426 ceAbstractionStarter]: For program point L66-1(line 66) no Hoare annotation was computed. [2018-09-20 15:32:00,075 INFO L426 ceAbstractionStarter]: For program point L69-4(lines 69 72) no Hoare annotation was computed. [2018-09-20 15:32:00,075 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 56 75) the Hoare annotation is: true [2018-09-20 15:32:00,075 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 56 75) no Hoare annotation was computed. [2018-09-20 15:32:00,076 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 56 75) no Hoare annotation was computed. [2018-09-20 15:32:00,076 INFO L426 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-09-20 15:32:00,077 INFO L426 ceAbstractionStarter]: For program point L69(line 69) no Hoare annotation was computed. [2018-09-20 15:32:00,077 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 70) no Hoare annotation was computed. [2018-09-20 15:32:00,077 INFO L422 ceAbstractionStarter]: At program point L69-1(line 69) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= (_ +zero 8 24) main_~x~0) (= main_~res~0 .cse0) |main_#t~short9| (= main_~y~0 .cse0))) [2018-09-20 15:32:00,077 INFO L426 ceAbstractionStarter]: For program point L69-2(line 69) no Hoare annotation was computed. [2018-09-20 15:32:00,077 INFO L422 ceAbstractionStarter]: At program point L66(line 66) the Hoare annotation is: (and (= (_ +zero 8 24) main_~x~0) (= main_~y~0 (fp.neg (_ +zero 8 24)))) [2018-09-20 15:32:00,077 INFO L426 ceAbstractionStarter]: For program point L29(lines 29 32) no Hoare annotation was computed. [2018-09-20 15:32:00,077 INFO L426 ceAbstractionStarter]: For program point __fpclassify_floatFINAL(lines 12 33) no Hoare annotation was computed. [2018-09-20 15:32:00,077 INFO L426 ceAbstractionStarter]: For program point L23(lines 23 32) no Hoare annotation was computed. [2018-09-20 15:32:00,078 INFO L426 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-09-20 15:32:00,078 INFO L426 ceAbstractionStarter]: For program point L15-1(lines 15 19) no Hoare annotation was computed. [2018-09-20 15:32:00,078 INFO L422 ceAbstractionStarter]: At program point L15-3(lines 15 19) the Hoare annotation is: (= __fpclassify_float_~x |__fpclassify_float_#in~x|) [2018-09-20 15:32:00,078 INFO L426 ceAbstractionStarter]: For program point L15-4(lines 12 33) no Hoare annotation was computed. [2018-09-20 15:32:00,078 INFO L426 ceAbstractionStarter]: For program point L26(lines 26 32) no Hoare annotation was computed. [2018-09-20 15:32:00,078 INFO L426 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-09-20 15:32:00,078 INFO L426 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-09-20 15:32:00,078 INFO L426 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-09-20 15:32:00,079 INFO L426 ceAbstractionStarter]: For program point L18-2(line 18) no Hoare annotation was computed. [2018-09-20 15:32:00,079 INFO L426 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-09-20 15:32:00,079 INFO L426 ceAbstractionStarter]: For program point L16-2(line 16) no Hoare annotation was computed. [2018-09-20 15:32:00,079 INFO L426 ceAbstractionStarter]: For program point L16-3(line 16) no Hoare annotation was computed. [2018-09-20 15:32:00,079 INFO L429 ceAbstractionStarter]: At program point __fpclassify_floatENTRY(lines 12 33) the Hoare annotation is: true [2018-09-20 15:32:00,079 INFO L426 ceAbstractionStarter]: For program point __fpclassify_floatEXIT(lines 12 33) no Hoare annotation was computed. [2018-09-20 15:32:00,079 INFO L426 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 44 54) no Hoare annotation was computed. [2018-09-20 15:32:00,079 INFO L426 ceAbstractionStarter]: For program point L50(line 50) no Hoare annotation was computed. [2018-09-20 15:32:00,079 INFO L426 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-09-20 15:32:00,079 INFO L426 ceAbstractionStarter]: For program point L50-1(line 50) no Hoare annotation was computed. [2018-09-20 15:32:00,080 INFO L429 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 44 54) the Hoare annotation is: true [2018-09-20 15:32:00,080 INFO L426 ceAbstractionStarter]: For program point L48(line 48) no Hoare annotation was computed. [2018-09-20 15:32:00,080 INFO L426 ceAbstractionStarter]: For program point L50-2(line 50) no Hoare annotation was computed. [2018-09-20 15:32:00,080 INFO L426 ceAbstractionStarter]: For program point L48-1(line 48) no Hoare annotation was computed. [2018-09-20 15:32:00,080 INFO L426 ceAbstractionStarter]: For program point L48-2(line 48) no Hoare annotation was computed. [2018-09-20 15:32:00,080 INFO L426 ceAbstractionStarter]: For program point L47-1(lines 47 51) no Hoare annotation was computed. [2018-09-20 15:32:00,080 INFO L426 ceAbstractionStarter]: For program point L48-3(line 48) no Hoare annotation was computed. [2018-09-20 15:32:00,080 INFO L422 ceAbstractionStarter]: At program point L47-3(lines 47 51) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-09-20 15:32:00,080 INFO L426 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 44 54) no Hoare annotation was computed. [2018-09-20 15:32:00,080 INFO L426 ceAbstractionStarter]: For program point L47-4(lines 47 51) no Hoare annotation was computed. [2018-09-20 15:32:00,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:32:00 BoogieIcfgContainer [2018-09-20 15:32:00,094 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:32:00,094 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:32:00,094 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:32:00,095 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:32:00,095 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:31:52" (3/4) ... [2018-09-20 15:32:00,099 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:32:00,105 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:32:00,105 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fmin_float [2018-09-20 15:32:00,106 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:32:00,106 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __fpclassify_float [2018-09-20 15:32:00,106 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-09-20 15:32:00,112 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-09-20 15:32:00,112 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-09-20 15:32:00,113 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:32:00,140 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-09-20 15:32:00,141 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:32:00,183 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:32:00,183 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:32:00,184 INFO L168 Benchmark]: Toolchain (without parser) took 9161.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 220.7 MB). Free memory was 953.2 MB in the beginning and 1.2 GB in the end (delta: -208.5 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:32:00,186 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:32:00,186 INFO L168 Benchmark]: CACSL2BoogieTranslator took 420.94 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:32:00,187 INFO L168 Benchmark]: Boogie Preprocessor took 52.21 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. [2018-09-20 15:32:00,187 INFO L168 Benchmark]: RCFGBuilder took 805.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -192.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:32:00,189 INFO L168 Benchmark]: TraceAbstraction took 7786.47 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -40.2 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:32:00,189 INFO L168 Benchmark]: Witness Printer took 88.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. [2018-09-20 15:32:00,195 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 420.94 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 52.21 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 805.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -192.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7786.47 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -40.2 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * Witness Printer took 88.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 70]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 58 locations, 1 error locations. SAFE Result, 7.7s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 4.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 417 SDtfs, 140 SDslu, 1695 SDs, 0 SdLazy, 581 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 358 GetRequests, 285 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 31 PreInvPairs, 38 NumberOfFragments, 68 HoareAnnotationTreeSize, 31 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 335 NumberOfCodeBlocks, 335 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 327 ConstructedInterpolants, 14 QuantifiedInterpolants, 44766 SizeOfPredicates, 33 NumberOfNonLiveVariables, 728 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 70/70 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...