/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032b_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/double_req_bl_1032b_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 2fc40f01120ca51e77cbf79a7824b0aac7011828 ...................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032b_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 2fc40f01120ca51e77cbf79a7824b0aac7011828 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:02:03,916 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:02:03,919 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:02:03,938 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:02:03,938 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:02:03,939 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:02:03,942 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:02:03,944 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:02:03,946 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:02:03,947 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:02:03,948 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:02:03,948 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:02:03,949 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:02:03,950 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:02:03,954 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:02:03,955 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:02:03,956 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:02:03,963 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:02:03,967 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:02:03,969 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:02:03,973 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:02:03,977 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:02:03,983 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:02:03,983 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:02:03,983 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:02:03,984 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:02:03,985 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:02:03,986 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:02:03,991 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:02:03,992 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:02:03,992 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:02:03,993 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:02:03,993 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:02:03,996 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:02:03,998 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:02:03,999 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:02:03,999 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:02:04,027 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:02:04,027 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:02:04,028 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:02:04,029 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:02:04,030 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:02:04,030 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:02:04,031 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:02:04,031 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:02:04,031 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:02:04,031 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:02:04,032 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:02:04,032 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:02:04,032 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:02:04,032 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:02:04,032 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:02:04,032 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:02:04,033 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:02:04,033 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:02:04,033 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:02:04,033 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:02:04,033 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:02:04,034 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:02:04,034 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:02:04,034 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:02:04,034 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:02:04,036 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:02:04,036 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:02:04,036 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:02:04,036 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:02:04,036 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 -> 2fc40f01120ca51e77cbf79a7824b0aac7011828 [2018-09-20 15:02:04,107 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:02:04,120 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:02:04,124 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:02:04,125 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:02:04,126 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:02:04,127 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032b_true-unreach-call.c [2018-09-20 15:02:04,479 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43fa38bfc/3edf28970f5a43849dd65bf4d14ebec7/FLAGf393f033d [2018-09-20 15:02:04,677 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:02:04,678 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1032b_true-unreach-call.c [2018-09-20 15:02:04,688 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43fa38bfc/3edf28970f5a43849dd65bf4d14ebec7/FLAGf393f033d [2018-09-20 15:02:04,716 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43fa38bfc/3edf28970f5a43849dd65bf4d14ebec7 [2018-09-20 15:02:04,723 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:02:04,729 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:02:04,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:04,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:02:04,740 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:02:04,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:04" (1/1) ... [2018-09-20 15:02:04,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3824ffff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:04, skipping insertion in model container [2018-09-20 15:02:04,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:04" (1/1) ... [2018-09-20 15:02:04,759 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:02:04,997 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:05,014 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:02:05,050 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:05,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:05 WrapperNode [2018-09-20 15:02:05,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:05,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:02:05,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:02:05,108 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:02:05,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:05" (1/1) ... [2018-09-20 15:02:05,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:05" (1/1) ... [2018-09-20 15:02:05,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:05" (1/1) ... [2018-09-20 15:02:05,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:05" (1/1) ... [2018-09-20 15:02:05,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:05" (1/1) ... [2018-09-20 15:02:05,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:05" (1/1) ... [2018-09-20 15:02:05,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:05" (1/1) ... [2018-09-20 15:02:05,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:02:05,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:02:05,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:02:05,195 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:02:05,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:05" (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 15:02:05,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:02:05,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:02:05,321 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 15:02:05,321 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-09-20 15:02:05,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-20 15:02:05,322 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:02:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:02:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 15:02:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-09-20 15:02:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:02:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:02:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:02:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:02:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:02:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:02:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-20 15:02:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:02:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:02:05,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:02:05,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:02:05,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:02:05,944 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:02:05,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:05 BoogieIcfgContainer [2018-09-20 15:02:05,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:02:05,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:02:05,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:02:05,950 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:02:05,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:02:04" (1/3) ... [2018-09-20 15:02:05,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f223d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:05, skipping insertion in model container [2018-09-20 15:02:05,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:05" (2/3) ... [2018-09-20 15:02:05,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f223d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:05, skipping insertion in model container [2018-09-20 15:02:05,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:05" (3/3) ... [2018-09-20 15:02:05,955 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032b_true-unreach-call.c [2018-09-20 15:02:05,966 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:02:05,976 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:02:06,033 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:02:06,034 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:02:06,034 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:02:06,034 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:02:06,035 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:02:06,035 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:02:06,035 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:02:06,035 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:02:06,035 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:02:06,075 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2018-09-20 15:02:06,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-20 15:02:06,086 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:06,088 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:06,094 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:06,101 INFO L82 PathProgramCache]: Analyzing trace with hash -141193166, now seen corresponding path program 1 times [2018-09-20 15:02:06,104 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:02:06,104 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:02:06,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:02:06,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:06,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:02:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:06,294 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 15:02:06,300 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:06,301 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:02:06,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:02:06,322 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:02:06,323 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:02:06,326 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 2 states. [2018-09-20 15:02:06,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:06,368 INFO L93 Difference]: Finished difference Result 138 states and 169 transitions. [2018-09-20 15:02:06,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:02:06,370 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-20 15:02:06,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:06,381 INFO L225 Difference]: With dead ends: 138 [2018-09-20 15:02:06,381 INFO L226 Difference]: Without dead ends: 69 [2018-09-20 15:02:06,386 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 15:02:06,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-09-20 15:02:06,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-09-20 15:02:06,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-09-20 15:02:06,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 77 transitions. [2018-09-20 15:02:06,435 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 77 transitions. Word has length 19 [2018-09-20 15:02:06,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:06,436 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 77 transitions. [2018-09-20 15:02:06,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:02:06,436 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2018-09-20 15:02:06,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-20 15:02:06,438 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:06,438 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] [2018-09-20 15:02:06,438 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:06,440 INFO L82 PathProgramCache]: Analyzing trace with hash 801598628, now seen corresponding path program 1 times [2018-09-20 15:02:06,440 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:02:06,440 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:02:06,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:02:06,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:06,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:02:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:02:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:02:06,582 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:02:06,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:02:06 BoogieIcfgContainer [2018-09-20 15:02:06,622 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:02:06,622 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:02:06,622 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:02:06,623 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:02:06,624 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:05" (3/4) ... [2018-09-20 15:02:06,629 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:02:06,629 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:02:06,630 INFO L168 Benchmark]: Toolchain (without parser) took 1906.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -137.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:06,633 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 15:02:06,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.62 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:06,634 INFO L168 Benchmark]: Boogie Preprocessor took 86.25 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:06,635 INFO L168 Benchmark]: RCFGBuilder took 750.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -180.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:06,637 INFO L168 Benchmark]: TraceAbstraction took 675.71 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:06,638 INFO L168 Benchmark]: Witness Printer took 6.73 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 15:02:06,643 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 375.62 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 86.25 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 750.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -180.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 675.71 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 6.73 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: 91]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 34, overapproximation of someUnaryDOUBLEoperation at line 86, overapproximation of bitwiseAnd at line 35, overapproximation of someBinaryDOUBLEComparisonOperation at line 90. Possible FailurePath: [L86] double x = -0.0; [L87] CALL, EXPR round_double(x) VAL [\old(x)=6442450946] [L18] __int32_t msw, exponent_less_1023; [L19] __uint32_t lsw; VAL [\old(x)=6442450946, x=6442450946] [L21] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=6442450946, ew_u={6442450948:0}, x=6442450946] [L22] FCALL ew_u.value = (x) VAL [\old(x)=6442450946, ew_u={6442450948:0}, x=6442450946] [L23] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=6442450946, ew_u={6442450948:0}, ew_u.parts.msw=6442450943, x=6442450946] [L23] (msw) = ew_u.parts.msw VAL [\old(x)=6442450946, ew_u={6442450948:0}, ew_u.parts.msw=6442450943, msw=2147483647, x=6442450946] [L23] FCALL (msw) = ew_u.parts.msw VAL [(msw) = ew_u.parts.msw=6442450944, \old(x)=6442450946, ew_u={6442450948:0}, ew_u.parts.msw=6442450943, msw=2147483647, x=6442450946] [L24] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=6442450946, ew_u={6442450948:0}, ew_u.parts.lsw=0, msw=2147483647, x=6442450946] [L24] (lsw) = ew_u.parts.lsw VAL [\old(x)=6442450946, ew_u={6442450948:0}, ew_u.parts.lsw=0, lsw=0, msw=2147483647, x=6442450946] [L24] FCALL (lsw) = ew_u.parts.lsw VAL [(lsw) = ew_u.parts.lsw=6442450947, \old(x)=6442450946, ew_u={6442450948:0}, ew_u.parts.lsw=0, lsw=0, msw=2147483647, x=6442450946] [L25] COND FALSE !(0) VAL [\old(x)=6442450946, lsw=0, msw=2147483647, x=6442450946] [L26] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=6442450946, exponent_less_1023=0, lsw=0, msw=2147483647, x=6442450946] [L27] COND TRUE exponent_less_1023 < 20 VAL [\old(x)=6442450946, exponent_less_1023=0, lsw=0, msw=2147483647, x=6442450946] [L28] COND FALSE !(exponent_less_1023 < 0) [L34] __uint32_t exponent_mask = 0x000fffff >> exponent_less_1023; VAL [\old(x)=6442450946, exponent_less_1023=0, lsw=0, msw=2147483647, x=6442450946] [L35] COND TRUE (msw & exponent_mask) == 0 && lsw == 0 [L36] RET return x; VAL [\old(x)=6442450946, \result=6442450946, exponent_less_1023=0, lsw=0, msw=2147483647, x=6442450946] [L87] EXPR round_double(x) VAL [round_double(x)=6442450946, x=6442450946] [L87] double res = round_double(x); [L90] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [res=6442450946, res == -0.0 && __signbit_double(res) == 1=0, x=6442450946] [L90] COND FALSE, EXPR !(res == -0.0 && __signbit_double(res) == 1) VAL [res=6442450946, res == -0.0 && __signbit_double(res) == 1=0, x=6442450946] [L90] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L91] __VERIFIER_error() VAL [res=6442450946, x=6442450946] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 76 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 81 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 15:02:09,029 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:02:09,031 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:02:09,044 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:02:09,044 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:02:09,045 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:02:09,047 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:02:09,048 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:02:09,050 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:02:09,051 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:02:09,052 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:02:09,052 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:02:09,053 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:02:09,054 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:02:09,055 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:02:09,056 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:02:09,057 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:02:09,059 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:02:09,061 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:02:09,063 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:02:09,064 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:02:09,065 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:02:09,068 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:02:09,068 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:02:09,068 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:02:09,069 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:02:09,070 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:02:09,071 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:02:09,072 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:02:09,073 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:02:09,074 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:02:09,074 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:02:09,075 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:02:09,075 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:02:09,076 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:02:09,077 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:02:09,077 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:02:09,093 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:02:09,093 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:02:09,094 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:02:09,094 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:02:09,095 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:02:09,095 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:02:09,095 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:02:09,095 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:02:09,096 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:02:09,096 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:02:09,096 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:02:09,096 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:02:09,096 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:02:09,097 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:02:09,097 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:02:09,097 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:02:09,097 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:02:09,097 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:02:09,097 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:02:09,098 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:02:09,098 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:02:09,098 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:02:09,098 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:02:09,098 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:02:09,099 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:02:09,099 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:02:09,099 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:02:09,099 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:02:09,099 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:02:09,100 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:02:09,100 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:02:09,100 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 -> 2fc40f01120ca51e77cbf79a7824b0aac7011828 [2018-09-20 15:02:09,161 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:02:09,176 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:02:09,179 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:02:09,183 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:02:09,183 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:02:09,184 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032b_true-unreach-call.c [2018-09-20 15:02:09,542 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93c0ea245/56b3b32df31d4c50bc5d4643345b47e5/FLAG496ebf99b [2018-09-20 15:02:09,676 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:02:09,676 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1032b_true-unreach-call.c [2018-09-20 15:02:09,686 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93c0ea245/56b3b32df31d4c50bc5d4643345b47e5/FLAG496ebf99b [2018-09-20 15:02:09,702 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93c0ea245/56b3b32df31d4c50bc5d4643345b47e5 [2018-09-20 15:02:09,706 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:02:09,708 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:02:09,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:09,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:02:09,718 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:02:09,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:09" (1/1) ... [2018-09-20 15:02:09,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5109b255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:09, skipping insertion in model container [2018-09-20 15:02:09,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:09" (1/1) ... [2018-09-20 15:02:09,734 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:02:09,975 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:09,994 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:02:10,018 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:10,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:10 WrapperNode [2018-09-20 15:02:10,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:10,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:02:10,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:02:10,056 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:02:10,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:10" (1/1) ... [2018-09-20 15:02:10,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:10" (1/1) ... [2018-09-20 15:02:10,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:10" (1/1) ... [2018-09-20 15:02:10,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:10" (1/1) ... [2018-09-20 15:02:10,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:10" (1/1) ... [2018-09-20 15:02:10,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:10" (1/1) ... [2018-09-20 15:02:10,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:10" (1/1) ... [2018-09-20 15:02:10,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:02:10,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:02:10,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:02:10,126 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:02:10,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:10" (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 15:02:10,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:02:10,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:02:10,268 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 15:02:10,269 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-09-20 15:02:10,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-20 15:02:10,269 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:02:10,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:02:10,269 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 15:02:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-09-20 15:02:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:02:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-20 15:02:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:02:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:02:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:02:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-20 15:02:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-20 15:02:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:02:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:02:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:02:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-20 15:02:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:02:10,503 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:10,560 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:10,805 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:10,824 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:10,839 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:11,060 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:02:11,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:11 BoogieIcfgContainer [2018-09-20 15:02:11,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:02:11,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:02:11,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:02:11,067 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:02:11,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:02:09" (1/3) ... [2018-09-20 15:02:11,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e7a2a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:11, skipping insertion in model container [2018-09-20 15:02:11,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:10" (2/3) ... [2018-09-20 15:02:11,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e7a2a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:11, skipping insertion in model container [2018-09-20 15:02:11,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:11" (3/3) ... [2018-09-20 15:02:11,072 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032b_true-unreach-call.c [2018-09-20 15:02:11,083 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:02:11,093 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:02:11,140 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:02:11,140 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:02:11,140 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:02:11,141 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:02:11,141 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:02:11,141 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:02:11,141 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:02:11,141 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:02:11,141 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:02:11,171 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2018-09-20 15:02:11,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-20 15:02:11,180 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:11,181 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:11,184 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:11,189 INFO L82 PathProgramCache]: Analyzing trace with hash -141193166, now seen corresponding path program 1 times [2018-09-20 15:02:11,193 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:11,193 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 15:02:11,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:11,267 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:11,290 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 15:02:11,291 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:11,304 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:11,305 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:02:11,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:02:11,320 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:02:11,321 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:02:11,323 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 2 states. [2018-09-20 15:02:11,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:11,356 INFO L93 Difference]: Finished difference Result 138 states and 169 transitions. [2018-09-20 15:02:11,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:02:11,358 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-20 15:02:11,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:11,370 INFO L225 Difference]: With dead ends: 138 [2018-09-20 15:02:11,371 INFO L226 Difference]: Without dead ends: 69 [2018-09-20 15:02:11,375 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 15:02:11,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-09-20 15:02:11,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-09-20 15:02:11,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-09-20 15:02:11,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 77 transitions. [2018-09-20 15:02:11,428 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 77 transitions. Word has length 19 [2018-09-20 15:02:11,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:11,429 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 77 transitions. [2018-09-20 15:02:11,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:02:11,430 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2018-09-20 15:02:11,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-20 15:02:11,434 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:11,434 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] [2018-09-20 15:02:11,435 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:11,435 INFO L82 PathProgramCache]: Analyzing trace with hash 801598628, now seen corresponding path program 1 times [2018-09-20 15:02:11,437 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:11,437 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 15:02:11,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:11,526 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:11,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 15:02:11,769 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 15:02:11,770 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:11,793 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:11,827 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:11,828 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:02:11,881 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 15:02:11,897 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 15:02:11,897 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:11,921 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:11,940 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:11,941 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:02:12,502 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 15:02:12,502 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:12,517 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:12,517 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:02:12,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:02:12,520 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:02:12,521 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:02:12,521 INFO L87 Difference]: Start difference. First operand 69 states and 77 transitions. Second operand 9 states. [2018-09-20 15:02:13,004 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-20 15:02:15,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:15,379 INFO L93 Difference]: Finished difference Result 123 states and 131 transitions. [2018-09-20 15:02:15,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-20 15:02:15,381 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2018-09-20 15:02:15,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:15,383 INFO L225 Difference]: With dead ends: 123 [2018-09-20 15:02:15,384 INFO L226 Difference]: Without dead ends: 63 [2018-09-20 15:02:15,386 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2018-09-20 15:02:15,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-20 15:02:15,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-09-20 15:02:15,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-09-20 15:02:15,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2018-09-20 15:02:15,395 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 32 [2018-09-20 15:02:15,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:15,396 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2018-09-20 15:02:15,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:02:15,397 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2018-09-20 15:02:15,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-20 15:02:15,399 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:15,399 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:15,399 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:15,400 INFO L82 PathProgramCache]: Analyzing trace with hash -454012241, now seen corresponding path program 1 times [2018-09-20 15:02:15,400 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:15,401 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) [2018-09-20 15:02:15,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 15:02:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:15,498 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:15,535 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 15:02:15,542 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 15:02:15,543 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:15,576 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:15,596 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:15,596 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:02:15,641 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 15:02:15,651 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 15:02:15,651 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:15,655 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:15,665 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:15,666 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:02:15,928 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 15:02:15,929 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:15,944 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:15,944 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:02:15,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:02:15,945 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:02:15,945 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:02:15,945 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 9 states. [2018-09-20 15:02:16,555 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-20 15:02:17,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:17,577 INFO L93 Difference]: Finished difference Result 100 states and 101 transitions. [2018-09-20 15:02:17,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-20 15:02:17,580 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 46 [2018-09-20 15:02:17,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:17,582 INFO L225 Difference]: With dead ends: 100 [2018-09-20 15:02:17,582 INFO L226 Difference]: Without dead ends: 63 [2018-09-20 15:02:17,584 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2018-09-20 15:02:17,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-20 15:02:17,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-09-20 15:02:17,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-09-20 15:02:17,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2018-09-20 15:02:17,592 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 46 [2018-09-20 15:02:17,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:17,593 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2018-09-20 15:02:17,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:02:17,594 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2018-09-20 15:02:17,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-20 15:02:17,595 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:17,595 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:17,597 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:17,597 INFO L82 PathProgramCache]: Analyzing trace with hash -31310415, now seen corresponding path program 1 times [2018-09-20 15:02:17,598 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:17,598 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 15:02:17,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:17,696 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:17,778 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 15 treesize of output 12 [2018-09-20 15:02:17,789 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 12 treesize of output 11 [2018-09-20 15:02:17,789 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:17,794 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:17,812 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:17,813 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2018-09-20 15:02:17,847 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 23 treesize of output 18 [2018-09-20 15:02:17,853 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:02:17,858 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 25 [2018-09-20 15:02:17,859 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:17,876 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:17,890 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:17,890 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-09-20 15:02:17,940 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 64 treesize of output 48 [2018-09-20 15:02:17,982 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:02:17,995 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 28 [2018-09-20 15:02:17,996 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:18,004 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:18,008 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:18,009 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:64, output treesize:21 [2018-09-20 15:02:18,253 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 15:02:18,253 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:18,264 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:18,264 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-20 15:02:18,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-20 15:02:18,265 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-20 15:02:18,265 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-09-20 15:02:18,266 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand 11 states. [2018-09-20 15:02:19,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:19,083 INFO L93 Difference]: Finished difference Result 66 states and 65 transitions. [2018-09-20 15:02:19,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-20 15:02:19,083 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 46 [2018-09-20 15:02:19,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:19,086 INFO L225 Difference]: With dead ends: 66 [2018-09-20 15:02:19,086 INFO L226 Difference]: Without dead ends: 63 [2018-09-20 15:02:19,087 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2018-09-20 15:02:19,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-20 15:02:19,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-09-20 15:02:19,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-09-20 15:02:19,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 62 transitions. [2018-09-20 15:02:19,094 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 62 transitions. Word has length 46 [2018-09-20 15:02:19,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:19,095 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 62 transitions. [2018-09-20 15:02:19,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-20 15:02:19,095 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 62 transitions. [2018-09-20 15:02:19,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-09-20 15:02:19,098 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:19,098 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:19,098 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:19,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1741989352, now seen corresponding path program 1 times [2018-09-20 15:02:19,099 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:19,099 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 15:02:19,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:19,254 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:19,284 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 15:02:19,290 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 15:02:19,291 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:19,300 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:19,317 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:19,318 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:02:19,353 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 15:02:19,358 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 15:02:19,359 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:19,363 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:19,373 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:19,374 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:02:19,514 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 16 treesize of output 13 [2018-09-20 15:02:19,537 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 13 treesize of output 12 [2018-09-20 15:02:19,537 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:19,564 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:19,649 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:19,650 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:22 [2018-09-20 15:02:19,780 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 24 treesize of output 19 [2018-09-20 15:02:19,789 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:02:19,794 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 26 [2018-09-20 15:02:19,794 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:19,813 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:19,833 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:19,834 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:33, output treesize:22 [2018-09-20 15:02:19,845 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 58 treesize of output 44 [2018-09-20 15:02:19,855 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:02:19,860 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2018-09-20 15:02:19,862 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:19,877 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:19,900 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:19,901 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:67, output treesize:34 [2018-09-20 15:02:20,604 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 15:02:20,623 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 15:02:20,623 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:20,647 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:20,667 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:20,668 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:02:20,831 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 15:02:20,837 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 15:02:20,837 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:20,840 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:20,850 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:20,850 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:02:21,400 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 15:02:21,401 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:21,417 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:21,418 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-09-20 15:02:21,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-09-20 15:02:21,418 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-09-20 15:02:21,419 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2018-09-20 15:02:21,419 INFO L87 Difference]: Start difference. First operand 63 states and 62 transitions. Second operand 21 states. [2018-09-20 15:02:22,364 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-20 15:02:28,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:28,278 INFO L93 Difference]: Finished difference Result 63 states and 62 transitions. [2018-09-20 15:02:28,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-09-20 15:02:28,279 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 62 [2018-09-20 15:02:28,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:28,280 INFO L225 Difference]: With dead ends: 63 [2018-09-20 15:02:28,281 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:02:28,282 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=171, Invalid=1635, Unknown=0, NotChecked=0, Total=1806 [2018-09-20 15:02:28,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:02:28,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:02:28,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:02:28,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:02:28,284 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2018-09-20 15:02:28,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:28,284 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:02:28,284 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-09-20 15:02:28,284 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:02:28,284 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:02:28,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:02:28,472 INFO L426 ceAbstractionStarter]: For program point isnan_doubleENTRY(line 15) no Hoare annotation was computed. [2018-09-20 15:02:28,473 INFO L426 ceAbstractionStarter]: For program point isnan_doubleEXIT(line 15) no Hoare annotation was computed. [2018-09-20 15:02:28,473 INFO L426 ceAbstractionStarter]: For program point isnan_doubleFINAL(line 15) no Hoare annotation was computed. [2018-09-20 15:02:28,473 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:02:28,473 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:02:28,473 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:02:28,473 INFO L426 ceAbstractionStarter]: For program point L60(line 60) no Hoare annotation was computed. [2018-09-20 15:02:28,473 INFO L426 ceAbstractionStarter]: For program point L27(lines 27 56) no Hoare annotation was computed. [2018-09-20 15:02:28,473 INFO L426 ceAbstractionStarter]: For program point round_doubleFINAL(lines 17 64) no Hoare annotation was computed. [2018-09-20 15:02:28,474 INFO L426 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-09-20 15:02:28,474 INFO L426 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-09-20 15:02:28,474 INFO L426 ceAbstractionStarter]: For program point L23-2(line 23) no Hoare annotation was computed. [2018-09-20 15:02:28,474 INFO L426 ceAbstractionStarter]: For program point L52(lines 52 53) no Hoare annotation was computed. [2018-09-20 15:02:28,474 INFO L426 ceAbstractionStarter]: For program point L52-2(lines 52 53) no Hoare annotation was computed. [2018-09-20 15:02:28,474 INFO L429 ceAbstractionStarter]: At program point round_doubleENTRY(lines 17 64) the Hoare annotation is: true [2018-09-20 15:02:28,474 INFO L426 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-09-20 15:02:28,474 INFO L426 ceAbstractionStarter]: For program point L28(lines 28 40) no Hoare annotation was computed. [2018-09-20 15:02:28,474 INFO L426 ceAbstractionStarter]: For program point L61-1(line 61) no Hoare annotation was computed. [2018-09-20 15:02:28,475 INFO L426 ceAbstractionStarter]: For program point L61-2(line 61) no Hoare annotation was computed. [2018-09-20 15:02:28,475 INFO L426 ceAbstractionStarter]: For program point L61-3(line 61) no Hoare annotation was computed. [2018-09-20 15:02:28,475 INFO L426 ceAbstractionStarter]: For program point L57(lines 57 62) no Hoare annotation was computed. [2018-09-20 15:02:28,475 INFO L426 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-09-20 15:02:28,475 INFO L426 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-09-20 15:02:28,475 INFO L426 ceAbstractionStarter]: For program point L57-2(lines 17 64) no Hoare annotation was computed. [2018-09-20 15:02:28,475 INFO L426 ceAbstractionStarter]: For program point round_doubleEXIT(lines 17 64) no Hoare annotation was computed. [2018-09-20 15:02:28,475 INFO L426 ceAbstractionStarter]: For program point L24-2(line 24) no Hoare annotation was computed. [2018-09-20 15:02:28,475 INFO L426 ceAbstractionStarter]: For program point L57-3(lines 57 62) no Hoare annotation was computed. [2018-09-20 15:02:28,475 INFO L426 ceAbstractionStarter]: For program point L24-3(line 24) no Hoare annotation was computed. [2018-09-20 15:02:28,476 INFO L426 ceAbstractionStarter]: For program point L20-1(lines 20 25) no Hoare annotation was computed. [2018-09-20 15:02:28,476 INFO L422 ceAbstractionStarter]: At program point L20-3(lines 20 25) the Hoare annotation is: (= |round_double_#in~x| round_double_~x) [2018-09-20 15:02:28,476 INFO L426 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-09-20 15:02:28,476 INFO L426 ceAbstractionStarter]: For program point L20-4(lines 20 25) no Hoare annotation was computed. [2018-09-20 15:02:28,476 INFO L426 ceAbstractionStarter]: For program point L41(lines 41 56) no Hoare annotation was computed. [2018-09-20 15:02:28,476 INFO L426 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-09-20 15:02:28,476 INFO L426 ceAbstractionStarter]: For program point L58-1(line 58) no Hoare annotation was computed. [2018-09-20 15:02:28,476 INFO L426 ceAbstractionStarter]: For program point L58-2(line 58) no Hoare annotation was computed. [2018-09-20 15:02:28,476 INFO L426 ceAbstractionStarter]: For program point L58-3(line 58) no Hoare annotation was computed. [2018-09-20 15:02:28,476 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-20 15:02:28,477 INFO L426 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-09-20 15:02:28,477 INFO L426 ceAbstractionStarter]: For program point L21-2(line 21) no Hoare annotation was computed. [2018-09-20 15:02:28,477 INFO L426 ceAbstractionStarter]: For program point L21-3(line 21) no Hoare annotation was computed. [2018-09-20 15:02:28,477 INFO L426 ceAbstractionStarter]: For program point L42(lines 42 45) no Hoare annotation was computed. [2018-09-20 15:02:28,477 INFO L426 ceAbstractionStarter]: For program point L30(lines 30 31) no Hoare annotation was computed. [2018-09-20 15:02:28,477 INFO L426 ceAbstractionStarter]: For program point L30-2(lines 30 31) no Hoare annotation was computed. [2018-09-20 15:02:28,477 INFO L426 ceAbstractionStarter]: For program point L59(line 59) no Hoare annotation was computed. [2018-09-20 15:02:28,477 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-20 15:02:28,477 INFO L426 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-09-20 15:02:28,478 INFO L426 ceAbstractionStarter]: For program point L69-4(lines 69 73) no Hoare annotation was computed. [2018-09-20 15:02:28,478 INFO L426 ceAbstractionStarter]: For program point __signbit_doubleFINAL(lines 66 76) no Hoare annotation was computed. [2018-09-20 15:02:28,478 INFO L426 ceAbstractionStarter]: For program point __signbit_doubleEXIT(lines 66 76) no Hoare annotation was computed. [2018-09-20 15:02:28,478 INFO L429 ceAbstractionStarter]: At program point __signbit_doubleENTRY(lines 66 76) the Hoare annotation is: true [2018-09-20 15:02:28,478 INFO L426 ceAbstractionStarter]: For program point L72(line 72) no Hoare annotation was computed. [2018-09-20 15:02:28,478 INFO L426 ceAbstractionStarter]: For program point L71(line 71) no Hoare annotation was computed. [2018-09-20 15:02:28,478 INFO L426 ceAbstractionStarter]: For program point L72-1(line 72) no Hoare annotation was computed. [2018-09-20 15:02:28,478 INFO L426 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-09-20 15:02:28,478 INFO L426 ceAbstractionStarter]: For program point L72-2(line 72) no Hoare annotation was computed. [2018-09-20 15:02:28,479 INFO L426 ceAbstractionStarter]: For program point L70-1(line 70) no Hoare annotation was computed. [2018-09-20 15:02:28,479 INFO L426 ceAbstractionStarter]: For program point L70-2(line 70) no Hoare annotation was computed. [2018-09-20 15:02:28,479 INFO L426 ceAbstractionStarter]: For program point L69-1(lines 69 73) no Hoare annotation was computed. [2018-09-20 15:02:28,479 INFO L426 ceAbstractionStarter]: For program point L70-3(line 70) no Hoare annotation was computed. [2018-09-20 15:02:28,479 INFO L422 ceAbstractionStarter]: At program point L69-3(lines 69 73) the Hoare annotation is: (= |__signbit_double_#in~x| __signbit_double_~x) [2018-09-20 15:02:28,479 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:02:28,479 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:02:28,479 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:02:28,479 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:02:28,480 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 78 96) the Hoare annotation is: true [2018-09-20 15:02:28,480 INFO L426 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-09-20 15:02:28,480 INFO L426 ceAbstractionStarter]: For program point L90(line 90) no Hoare annotation was computed. [2018-09-20 15:02:28,480 INFO L422 ceAbstractionStarter]: At program point L90-1(line 90) the Hoare annotation is: (and (exists ((v_arrayElimCell_13 (_ BitVec 32)) (|v_q#valueAsBitvector_8| (_ BitVec 64))) (and (= (let ((.cse0 (concat (bvand ((_ extract 63 32) |v_q#valueAsBitvector_8|) (_ bv2147483648 32)) v_arrayElimCell_13))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) main_~res~0) (= (fp.neg (_ +zero 11 53)) (fp ((_ extract 63 63) |v_q#valueAsBitvector_8|) ((_ extract 62 52) |v_q#valueAsBitvector_8|) ((_ extract 51 0) |v_q#valueAsBitvector_8|))))) |main_#t~short10| (= main_~x~0 (fp.neg (_ +zero 11 53)))) [2018-09-20 15:02:28,480 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 78 96) no Hoare annotation was computed. [2018-09-20 15:02:28,480 INFO L426 ceAbstractionStarter]: For program point L90-2(line 90) no Hoare annotation was computed. [2018-09-20 15:02:28,480 INFO L422 ceAbstractionStarter]: At program point L87(line 87) the Hoare annotation is: (= main_~x~0 (fp.neg (_ +zero 11 53))) [2018-09-20 15:02:28,480 INFO L426 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-09-20 15:02:28,481 INFO L426 ceAbstractionStarter]: For program point L90-4(lines 90 93) no Hoare annotation was computed. [2018-09-20 15:02:28,481 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2018-09-20 15:02:28,481 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 78 96) no Hoare annotation was computed. [2018-09-20 15:02:28,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:02:28 BoogieIcfgContainer [2018-09-20 15:02:28,495 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:02:28,495 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:02:28,495 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:02:28,495 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:02:28,496 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:11" (3/4) ... [2018-09-20 15:02:28,499 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:02:28,506 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-09-20 15:02:28,506 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:02:28,506 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure round_double [2018-09-20 15:02:28,506 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_double [2018-09-20 15:02:28,507 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:02:28,513 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-09-20 15:02:28,513 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-09-20 15:02:28,514 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:02:28,547 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:02:28,548 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:02:28,584 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:02:28,584 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:02:28,585 INFO L168 Benchmark]: Toolchain (without parser) took 18879.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 211.8 MB). Free memory was 953.2 MB in the beginning and 966.2 MB in the end (delta: -13.0 MB). Peak memory consumption was 198.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:28,587 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:02:28,587 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.00 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:28,588 INFO L168 Benchmark]: Boogie Preprocessor took 69.79 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:02:28,588 INFO L168 Benchmark]: RCFGBuilder took 935.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -182.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:28,589 INFO L168 Benchmark]: TraceAbstraction took 17432.27 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 973.9 MB in the end (delta: 146.1 MB). Peak memory consumption was 205.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:28,591 INFO L168 Benchmark]: Witness Printer took 89.54 ms. Allocated memory is still 1.2 GB. Free memory was 973.9 MB in the beginning and 966.2 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:28,595 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 345.00 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 69.79 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 935.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -182.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17432.27 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 973.9 MB in the end (delta: 146.1 MB). Peak memory consumption was 205.8 MB. Max. memory is 11.5 GB. * Witness Printer took 89.54 ms. Allocated memory is still 1.2 GB. Free memory was 973.9 MB in the beginning and 966.2 MB 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: 91]: 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: 20]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 76 locations, 1 error locations. SAFE Result, 17.3s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 12.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 285 SDtfs, 300 SDslu, 1553 SDs, 0 SdLazy, 807 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 250 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 16 PreInvPairs, 19 NumberOfFragments, 58 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 205 NumberOfCodeBlocks, 205 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 200 ConstructedInterpolants, 110 QuantifiedInterpolants, 117603 SizeOfPredicates, 45 NumberOfNonLiveVariables, 396 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...