/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1071_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1071_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 922786d1b563f399f230d6bc6e72c1342da4d1a5 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ......................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1071_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 922786d1b563f399f230d6bc6e72c1342da4d1a5 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false .................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:10:42,940 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:10:42,942 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:10:42,955 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:10:42,955 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:10:42,957 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:10:42,958 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:10:42,960 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:10:42,962 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:10:42,963 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:10:42,964 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:10:42,965 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:10:42,965 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:10:42,967 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:10:42,968 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:10:42,969 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:10:42,970 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:10:42,973 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:10:42,975 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:10:42,977 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:10:42,978 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:10:42,979 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:10:42,982 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:10:42,983 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:10:42,983 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:10:42,984 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:10:42,986 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:10:42,986 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:10:42,987 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:10:42,989 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:10:42,989 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:10:42,990 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:10:42,990 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:10:42,990 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:10:42,992 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:10:42,993 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:10:42,993 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:10:43,009 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:10:43,012 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:10:43,013 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:10:43,014 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:10:43,014 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:10:43,014 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:10:43,015 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:10:43,015 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:10:43,015 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:10:43,015 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:10:43,019 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:10:43,019 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:10:43,019 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:10:43,019 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:10:43,019 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:10:43,019 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:10:43,020 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:10:43,020 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:10:43,020 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:10:43,020 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:10:43,023 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:10:43,023 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:10:43,023 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:10:43,024 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:10:43,024 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:10:43,024 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:10:43,024 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:10:43,024 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:10:43,024 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:10:43,025 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 -> 922786d1b563f399f230d6bc6e72c1342da4d1a5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:10:43,085 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:10:43,099 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:10:43,103 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:10:43,105 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:10:43,105 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:10:43,106 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1071_true-unreach-call.c [2018-09-21 18:10:43,469 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc13bce40/b4c3b203dc3e4cd7933bf457eb71d2ac/FLAGec09cc66e [2018-09-21 18:10:43,639 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:10:43,639 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1071_true-unreach-call.c [2018-09-21 18:10:43,647 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc13bce40/b4c3b203dc3e4cd7933bf457eb71d2ac/FLAGec09cc66e [2018-09-21 18:10:43,665 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc13bce40/b4c3b203dc3e4cd7933bf457eb71d2ac [2018-09-21 18:10:43,669 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:10:43,672 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:10:43,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:10:43,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:10:43,682 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:10:43,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:10:43" (1/1) ... [2018-09-21 18:10:43,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78f3fd21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:43, skipping insertion in model container [2018-09-21 18:10:43,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:10:43" (1/1) ... [2018-09-21 18:10:43,699 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:10:43,966 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:10:43,984 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:10:44,004 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:10:44,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:44 WrapperNode [2018-09-21 18:10:44,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:10:44,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:10:44,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:10:44,044 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:10:44,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:44" (1/1) ... [2018-09-21 18:10:44,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:44" (1/1) ... [2018-09-21 18:10:44,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:44" (1/1) ... [2018-09-21 18:10:44,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:44" (1/1) ... [2018-09-21 18:10:44,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:44" (1/1) ... [2018-09-21 18:10:44,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:44" (1/1) ... [2018-09-21 18:10:44,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:44" (1/1) ... [2018-09-21 18:10:44,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:10:44,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:10:44,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:10:44,103 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:10:44,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:10:44,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:10:44,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:10:44,188 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:10:44,188 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_double [2018-09-21 18:10:44,188 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:10:44,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:10:44,188 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:10:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_double [2018-09-21 18:10:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:10:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:10:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:10:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:10:44,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:10:44,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:10:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:10:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:10:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:10:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:10:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:10:44,888 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:10:44,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:44 BoogieIcfgContainer [2018-09-21 18:10:44,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:10:44,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:10:44,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:10:44,895 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:10:44,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:10:43" (1/3) ... [2018-09-21 18:10:44,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4276e861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:10:44, skipping insertion in model container [2018-09-21 18:10:44,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:44" (2/3) ... [2018-09-21 18:10:44,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4276e861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:10:44, skipping insertion in model container [2018-09-21 18:10:44,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:44" (3/3) ... [2018-09-21 18:10:44,901 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1071_true-unreach-call.c [2018-09-21 18:10:44,914 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:10:44,923 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:10:44,973 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:10:44,974 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:10:44,974 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:10:44,975 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:10:44,975 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:10:44,975 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:10:44,975 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:10:44,975 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:10:44,975 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:10:44,997 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2018-09-21 18:10:45,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-21 18:10:45,011 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:45,013 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:10:45,016 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:45,023 INFO L82 PathProgramCache]: Analyzing trace with hash 796284592, now seen corresponding path program 1 times [2018-09-21 18:10:45,025 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:10:45,026 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:10:45,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:10:45,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:45,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:10:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:45,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:10:45,216 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:45,216 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:10:45,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:10:45,235 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:10:45,236 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:10:45,238 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 2 states. [2018-09-21 18:10:45,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:10:45,261 INFO L93 Difference]: Finished difference Result 79 states and 82 transitions. [2018-09-21 18:10:45,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:10:45,263 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-09-21 18:10:45,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:10:45,277 INFO L225 Difference]: With dead ends: 79 [2018-09-21 18:10:45,277 INFO L226 Difference]: Without dead ends: 75 [2018-09-21 18:10:45,280 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:10:45,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-09-21 18:10:45,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-09-21 18:10:45,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-09-21 18:10:45,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2018-09-21 18:10:45,327 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 23 [2018-09-21 18:10:45,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:10:45,328 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2018-09-21 18:10:45,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:10:45,328 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2018-09-21 18:10:45,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-21 18:10:45,331 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:45,331 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:10:45,332 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:45,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1878310358, now seen corresponding path program 1 times [2018-09-21 18:10:45,332 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:10:45,332 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:10:45,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:10:45,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:45,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:10:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:10:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:10:45,554 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:10:45,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:10:45 BoogieIcfgContainer [2018-09-21 18:10:45,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:10:45,611 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:10:45,611 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:10:45,611 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:10:45,612 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:44" (3/4) ... [2018-09-21 18:10:45,617 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:10:45,618 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:10:45,619 INFO L168 Benchmark]: Toolchain (without parser) took 1949.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -124.0 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:45,624 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:10:45,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.62 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:45,626 INFO L168 Benchmark]: Boogie Preprocessor took 59.02 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:45,630 INFO L168 Benchmark]: RCFGBuilder took 786.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -168.4 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:45,632 INFO L168 Benchmark]: TraceAbstraction took 719.37 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: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:45,633 INFO L168 Benchmark]: Witness Printer took 7.81 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:45,640 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 368.62 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.02 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 786.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -168.4 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 719.37 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: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * Witness Printer took 7.81 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 74]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 28. Possible FailurePath: [L68] double x = 0.0 / 0.0; [L70] CALL, EXPR trunc_double(x) VAL [\old(x)=9] [L18] int signbit; [L19] int msw; [L20] unsigned int lsw; [L21] int exponent_less_1023; VAL [\old(x)=9, x=9] [L23] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=9, ew_u={11:0}, x=9] [L24] FCALL ew_u.value = (x) VAL [\old(x)=9, ew_u={11:0}, x=9] [L25] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=9, ew_u={11:0}, ew_u.parts.msw=3, x=9] [L25] (msw) = ew_u.parts.msw VAL [\old(x)=9, ew_u={11:0}, ew_u.parts.msw=3, msw=3, x=9] [L25] FCALL (msw) = ew_u.parts.msw VAL [(msw) = ew_u.parts.msw=15, \old(x)=9, ew_u={11:0}, ew_u.parts.msw=3, msw=3, x=9] [L26] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=9, ew_u={11:0}, ew_u.parts.lsw=12, msw=3, x=9] [L26] (lsw) = ew_u.parts.lsw VAL [\old(x)=9, ew_u={11:0}, ew_u.parts.lsw=12, lsw=12, msw=3, x=9] [L26] FCALL (lsw) = ew_u.parts.lsw VAL [(lsw) = ew_u.parts.lsw=14, \old(x)=9, ew_u={11:0}, ew_u.parts.lsw=12, lsw=12, msw=3, x=9] [L27] COND FALSE !(0) VAL [\old(x)=9, lsw=12, msw=3, x=9] [L28] signbit = msw & 0x80000000 [L29] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=9, exponent_less_1023=1024, lsw=12, msw=3, signbit=-1, x=9] [L30] COND FALSE !(exponent_less_1023 < 20) VAL [\old(x)=9, exponent_less_1023=1024, lsw=12, msw=3, signbit=-1, x=9] [L47] COND TRUE exponent_less_1023 > 51 VAL [\old(x)=9, exponent_less_1023=1024, lsw=12, msw=3, signbit=-1, x=9] [L48] COND TRUE exponent_less_1023 == 1024 [L49] RET return x + x; VAL [\old(x)=9, exponent_less_1023=1024, lsw=12, msw=3, signbit=-1, x=9] [L70] EXPR trunc_double(x) VAL [trunc_double(x)=13, x=9] [L70] double res = trunc_double(x); [L73] CALL, EXPR isnan_double(res) VAL [\old(x)=13] [L15] RET return x != x; VAL [\old(x)=13, \result=0, x=13] [L73] EXPR isnan_double(res) VAL [isnan_double(res)=0, res=13, x=9] [L73] COND TRUE !isnan_double(res) [L74] __VERIFIER_error() VAL [res=13, x=9] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 79 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 82 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=79occurred 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, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:10:48,060 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:10:48,062 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:10:48,075 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:10:48,076 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:10:48,077 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:10:48,079 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:10:48,081 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:10:48,083 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:10:48,084 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:10:48,084 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:10:48,085 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:10:48,086 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:10:48,087 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:10:48,089 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:10:48,089 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:10:48,090 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:10:48,092 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:10:48,094 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:10:48,096 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:10:48,097 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:10:48,099 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:10:48,102 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:10:48,102 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:10:48,102 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:10:48,103 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:10:48,105 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:10:48,106 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:10:48,107 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:10:48,108 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:10:48,109 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:10:48,109 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:10:48,110 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:10:48,110 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:10:48,111 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:10:48,112 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:10:48,113 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:10:48,130 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:10:48,131 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:10:48,131 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:10:48,132 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:10:48,132 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:10:48,133 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:10:48,133 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:10:48,133 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:10:48,133 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:10:48,134 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:10:48,134 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:10:48,134 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:10:48,134 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:10:48,134 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:10:48,135 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:10:48,136 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:10:48,136 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:10:48,136 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:10:48,136 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:10:48,136 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:10:48,136 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:10:48,137 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:10:48,137 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:10:48,137 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:10:48,137 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:10:48,138 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:10:48,139 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:10:48,139 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:10:48,139 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:10:48,139 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:10:48,139 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:10:48,140 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 -> 922786d1b563f399f230d6bc6e72c1342da4d1a5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:10:48,192 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:10:48,205 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:10:48,209 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:10:48,211 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:10:48,211 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:10:48,212 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1071_true-unreach-call.c [2018-09-21 18:10:48,576 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/241cba5df/e57100069e87432bbce7cb079c64ac7f/FLAGf6d1ae355 [2018-09-21 18:10:48,741 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:10:48,742 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1071_true-unreach-call.c [2018-09-21 18:10:48,750 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/241cba5df/e57100069e87432bbce7cb079c64ac7f/FLAGf6d1ae355 [2018-09-21 18:10:48,765 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/241cba5df/e57100069e87432bbce7cb079c64ac7f [2018-09-21 18:10:48,770 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:10:48,773 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:10:48,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:10:48,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:10:48,783 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:10:48,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:10:48" (1/1) ... [2018-09-21 18:10:48,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69759c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:48, skipping insertion in model container [2018-09-21 18:10:48,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:10:48" (1/1) ... [2018-09-21 18:10:48,799 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:10:49,048 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:10:49,069 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:10:49,103 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:10:49,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:49 WrapperNode [2018-09-21 18:10:49,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:10:49,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:10:49,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:10:49,168 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:10:49,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:49" (1/1) ... [2018-09-21 18:10:49,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:49" (1/1) ... [2018-09-21 18:10:49,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:49" (1/1) ... [2018-09-21 18:10:49,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:49" (1/1) ... [2018-09-21 18:10:49,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:49" (1/1) ... [2018-09-21 18:10:49,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:49" (1/1) ... [2018-09-21 18:10:49,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:49" (1/1) ... [2018-09-21 18:10:49,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:10:49,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:10:49,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:10:49,258 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:10:49,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:10:49,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:10:49,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:10:49,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:10:49,399 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_double [2018-09-21 18:10:49,400 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:10:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:10:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:10:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_double [2018-09-21 18:10:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:10:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 18:10:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:10:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:10:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:10:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 18:10:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:10:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:10:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:10:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 18:10:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:10:49,782 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:10:49,819 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:10:49,856 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:10:50,161 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:10:50,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:50 BoogieIcfgContainer [2018-09-21 18:10:50,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:10:50,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:10:50,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:10:50,167 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:10:50,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:10:48" (1/3) ... [2018-09-21 18:10:50,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c88acc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:10:50, skipping insertion in model container [2018-09-21 18:10:50,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:49" (2/3) ... [2018-09-21 18:10:50,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c88acc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:10:50, skipping insertion in model container [2018-09-21 18:10:50,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:50" (3/3) ... [2018-09-21 18:10:50,173 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1071_true-unreach-call.c [2018-09-21 18:10:50,184 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:10:50,193 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:10:50,237 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:10:50,238 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:10:50,238 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:10:50,238 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:10:50,238 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:10:50,239 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:10:50,239 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:10:50,239 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:10:50,239 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:10:50,256 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2018-09-21 18:10:50,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-21 18:10:50,269 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:50,270 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:10:50,273 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:50,278 INFO L82 PathProgramCache]: Analyzing trace with hash -13887302, now seen corresponding path program 1 times [2018-09-21 18:10:50,283 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:10:50,284 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 18:10:50,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:50,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:50,411 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:10:50,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:10:50,431 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:10:50,448 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:50,448 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:10:50,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:10:50,465 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:10:50,466 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:10:50,469 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2018-09-21 18:10:50,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:10:50,489 INFO L93 Difference]: Finished difference Result 78 states and 81 transitions. [2018-09-21 18:10:50,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:10:50,491 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-21 18:10:50,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:10:50,505 INFO L225 Difference]: With dead ends: 78 [2018-09-21 18:10:50,505 INFO L226 Difference]: Without dead ends: 74 [2018-09-21 18:10:50,507 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:10:50,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-09-21 18:10:50,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-09-21 18:10:50,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-09-21 18:10:50,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2018-09-21 18:10:50,550 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 22 [2018-09-21 18:10:50,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:10:50,551 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2018-09-21 18:10:50,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:10:50,551 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2018-09-21 18:10:50,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-21 18:10:50,553 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:50,553 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:10:50,554 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:50,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1739385629, now seen corresponding path program 1 times [2018-09-21 18:10:50,555 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:10:50,555 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 [2018-09-21 18:10:50,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:50,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:50,672 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:10:51,683 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-09-21 18:10:52,746 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2018-09-21 18:10:52,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:10:52,755 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:10:52,768 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:52,769 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:10:52,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:10:52,772 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:10:52,772 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:10:52,772 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand 9 states. [2018-09-21 18:10:54,697 WARN L178 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-21 18:10:55,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:10:55,798 INFO L93 Difference]: Finished difference Result 82 states and 85 transitions. [2018-09-21 18:10:55,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-21 18:10:55,799 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-09-21 18:10:55,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:10:55,804 INFO L225 Difference]: With dead ends: 82 [2018-09-21 18:10:55,804 INFO L226 Difference]: Without dead ends: 77 [2018-09-21 18:10:55,806 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-21 18:10:55,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-09-21 18:10:55,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 74. [2018-09-21 18:10:55,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-09-21 18:10:55,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 76 transitions. [2018-09-21 18:10:55,821 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 76 transitions. Word has length 35 [2018-09-21 18:10:55,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:10:55,821 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 76 transitions. [2018-09-21 18:10:55,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:10:55,822 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2018-09-21 18:10:55,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-21 18:10:55,824 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:55,824 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:10:55,825 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:55,825 INFO L82 PathProgramCache]: Analyzing trace with hash 514359808, now seen corresponding path program 1 times [2018-09-21 18:10:55,827 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:10:55,827 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 18:10:55,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:55,909 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:10:56,309 WARN L178 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-21 18:10:56,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:10:56,484 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:10:56,501 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:56,501 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:10:56,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:10:56,502 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:10:56,502 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:10:56,503 INFO L87 Difference]: Start difference. First operand 74 states and 76 transitions. Second operand 9 states. [2018-09-21 18:10:57,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:10:57,041 INFO L93 Difference]: Finished difference Result 80 states and 82 transitions. [2018-09-21 18:10:57,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-21 18:10:57,042 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-09-21 18:10:57,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:10:57,043 INFO L225 Difference]: With dead ends: 80 [2018-09-21 18:10:57,043 INFO L226 Difference]: Without dead ends: 73 [2018-09-21 18:10:57,044 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-21 18:10:57,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-09-21 18:10:57,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-09-21 18:10:57,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-09-21 18:10:57,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2018-09-21 18:10:57,052 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 36 [2018-09-21 18:10:57,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:10:57,052 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2018-09-21 18:10:57,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:10:57,052 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2018-09-21 18:10:57,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-21 18:10:57,054 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:57,054 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] [2018-09-21 18:10:57,055 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:57,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1256802204, now seen corresponding path program 1 times [2018-09-21 18:10:57,056 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:10:57,056 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-21 18:10:57,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:57,138 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:10:57,199 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:10:57,208 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:10:57,209 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:10:57,214 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:10:57,230 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:10:57,230 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:10:57,285 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:10:57,293 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:10:57,294 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:10:57,301 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:10:57,315 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:10:57,316 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:10:57,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:10:57,585 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:10:57,603 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:57,603 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:10:57,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:10:57,604 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:10:57,604 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:10:57,604 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 9 states. [2018-09-21 18:10:59,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:10:59,582 INFO L93 Difference]: Finished difference Result 76 states and 76 transitions. [2018-09-21 18:10:59,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:10:59,585 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 47 [2018-09-21 18:10:59,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:10:59,588 INFO L225 Difference]: With dead ends: 76 [2018-09-21 18:10:59,588 INFO L226 Difference]: Without dead ends: 48 [2018-09-21 18:10:59,589 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:10:59,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-09-21 18:10:59,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-09-21 18:10:59,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-09-21 18:10:59,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 47 transitions. [2018-09-21 18:10:59,595 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 47 transitions. Word has length 47 [2018-09-21 18:10:59,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:10:59,596 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 47 transitions. [2018-09-21 18:10:59,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:10:59,596 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 47 transitions. [2018-09-21 18:10:59,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-21 18:10:59,597 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:59,597 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] [2018-09-21 18:10:59,598 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:59,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1988562767, now seen corresponding path program 1 times [2018-09-21 18:10:59,598 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:10:59,599 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-21 18:10:59,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:59,695 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:10:59,745 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:10:59,751 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:10:59,752 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:10:59,765 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:10:59,778 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:10:59,778 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:10:59,820 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:10:59,825 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:10:59,825 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:10:59,850 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:10:59,861 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:10:59,862 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:11:00,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:11:00,203 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:11:00,218 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:00,218 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:11:00,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:11:00,219 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:11:00,219 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:11:00,219 INFO L87 Difference]: Start difference. First operand 48 states and 47 transitions. Second operand 10 states. [2018-09-21 18:11:01,416 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-21 18:11:01,700 WARN L178 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-21 18:11:01,896 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2018-09-21 18:11:02,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:02,171 INFO L93 Difference]: Finished difference Result 40 states and 39 transitions. [2018-09-21 18:11:02,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:11:02,172 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 47 [2018-09-21 18:11:02,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:02,173 INFO L225 Difference]: With dead ends: 40 [2018-09-21 18:11:02,173 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:11:02,174 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2018-09-21 18:11:02,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:11:02,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:11:02,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:11:02,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:11:02,175 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2018-09-21 18:11:02,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:02,175 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:11:02,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:11:02,175 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:11:02,175 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:11:02,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:11:02 BoogieIcfgContainer [2018-09-21 18:11:02,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:11:02,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:11:02,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:11:02,182 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:11:02,183 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:50" (3/4) ... [2018-09-21 18:11:02,186 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:11:02,194 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-09-21 18:11:02,195 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:11:02,195 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:11:02,195 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure trunc_double [2018-09-21 18:11:02,202 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-09-21 18:11:02,202 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-09-21 18:11:02,203 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:11:02,274 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:11:02,275 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:11:02,279 INFO L168 Benchmark]: Toolchain (without parser) took 13505.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 951.8 MB in the beginning and 815.5 MB in the end (delta: 136.3 MB). Peak memory consumption was 261.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:02,280 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:11:02,281 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.49 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:02,281 INFO L168 Benchmark]: Boogie Preprocessor took 89.59 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:02,282 INFO L168 Benchmark]: RCFGBuilder took 904.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -156.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:02,283 INFO L168 Benchmark]: TraceAbstraction took 12017.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 822.5 MB in the end (delta: 270.0 MB). Peak memory consumption was 270.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:02,283 INFO L168 Benchmark]: Witness Printer took 93.13 ms. Allocated memory is still 1.2 GB. Free memory was 822.5 MB in the beginning and 815.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:02,287 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 392.49 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 89.59 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 904.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -156.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 12017.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 822.5 MB in the end (delta: 270.0 MB). Peak memory consumption was 270.0 MB. Max. memory is 11.5 GB. * Witness Printer took 93.13 ms. Allocated memory is still 1.2 GB. Free memory was 822.5 MB in the beginning and 815.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 74]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 78 locations, 1 error locations. SAFE Result, 11.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 7.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 307 SDtfs, 256 SDslu, 1265 SDs, 0 SdLazy, 300 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 208 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 7.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 182 ConstructedInterpolants, 58 QuantifiedInterpolants, 70825 SizeOfPredicates, 24 NumberOfNonLiveVariables, 367 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...