/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092a_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 8be2489bdcd97218605067fa4593696f9050abdf .................................................................................................................................................................................................................................................................................................... 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_1092a_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 8be2489bdcd97218605067fa4593696f9050abdf .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:03:16,778 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:03:16,781 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:03:16,796 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:03:16,796 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:03:16,797 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:03:16,799 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:03:16,803 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:03:16,808 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:03:16,809 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:03:16,813 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:03:16,813 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:03:16,814 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:03:16,815 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:03:16,818 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:03:16,819 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:03:16,820 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:03:16,822 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:03:16,824 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:03:16,826 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:03:16,827 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:03:16,828 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:03:16,831 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:03:16,831 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:03:16,831 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:03:16,832 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:03:16,834 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:03:16,835 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:03:16,835 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:03:16,837 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:03:16,838 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:03:16,839 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:03:16,839 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:03:16,839 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:03:16,840 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:03:16,844 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:03:16,845 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:03:16,873 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:03:16,873 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:03:16,874 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:03:16,874 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:03:16,875 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:03:16,875 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:03:16,875 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:03:16,875 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:03:16,875 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:03:16,876 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:03:16,876 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:03:16,876 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:03:16,876 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:03:16,876 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:03:16,876 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:03:16,877 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:03:16,877 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:03:16,877 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:03:16,877 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:03:16,877 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:03:16,877 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:03:16,878 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:03:16,878 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:03:16,878 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:03:16,878 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:03:16,878 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:03:16,879 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:03:16,879 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:03:16,879 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:03:16,879 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 -> 8be2489bdcd97218605067fa4593696f9050abdf [2018-09-20 15:03:16,948 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:03:16,966 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:03:16,972 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:03:16,974 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:03:16,976 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:03:16,977 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-09-20 15:03:17,338 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23595c1e4/78bc5534565445259ae8896641490e03/FLAGb9d8d4d0b [2018-09-20 15:03:17,544 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:03:17,545 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-09-20 15:03:17,553 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23595c1e4/78bc5534565445259ae8896641490e03/FLAGb9d8d4d0b [2018-09-20 15:03:17,571 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23595c1e4/78bc5534565445259ae8896641490e03 [2018-09-20 15:03:17,576 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:03:17,579 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:03:17,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:03:17,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:03:17,590 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:03:17,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:03:17" (1/1) ... [2018-09-20 15:03:17,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c686bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:17, skipping insertion in model container [2018-09-20 15:03:17,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:03:17" (1/1) ... [2018-09-20 15:03:17,605 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:03:17,854 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:03:17,875 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:03:17,903 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:03:17,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:17 WrapperNode [2018-09-20 15:03:17,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:03:17,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:03:17,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:03:17,938 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:03:17,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:17" (1/1) ... [2018-09-20 15:03:17,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:17" (1/1) ... [2018-09-20 15:03:17,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:17" (1/1) ... [2018-09-20 15:03:17,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:17" (1/1) ... [2018-09-20 15:03:17,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:17" (1/1) ... [2018-09-20 15:03:17,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:17" (1/1) ... [2018-09-20 15:03:17,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:17" (1/1) ... [2018-09-20 15:03:17,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:03:17,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:03:17,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:03:17,990 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:03:17,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:03:18,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:03:18,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:03:18,129 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 15:03:18,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-09-20 15:03:18,129 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:03:18,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:03:18,130 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 15:03:18,130 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-09-20 15:03:18,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:03:18,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:03:18,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:03:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:03:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:03:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:03:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:03:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:03:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:03:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:03:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:03:18,730 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:03:18,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:03:18 BoogieIcfgContainer [2018-09-20 15:03:18,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:03:18,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:03:18,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:03:18,736 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:03:18,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:03:17" (1/3) ... [2018-09-20 15:03:18,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4131df23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:03:18, skipping insertion in model container [2018-09-20 15:03:18,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:17" (2/3) ... [2018-09-20 15:03:18,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4131df23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:03:18, skipping insertion in model container [2018-09-20 15:03:18,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:03:18" (3/3) ... [2018-09-20 15:03:18,740 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a_true-unreach-call.c [2018-09-20 15:03:18,748 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:03:18,757 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:03:18,807 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:03:18,807 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:03:18,808 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:03:18,808 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:03:18,808 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:03:18,808 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:03:18,808 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:03:18,808 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:03:18,809 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:03:18,830 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-09-20 15:03:18,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-20 15:03:18,838 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:18,840 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:03:18,842 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:18,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1001944266, now seen corresponding path program 1 times [2018-09-20 15:03:18,850 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:03:18,851 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:03:18,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:03:18,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:18,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:03:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:18,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:18,997 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:18,998 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:03:19,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:03:19,016 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:03:19,017 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:03:19,020 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 2 states. [2018-09-20 15:03:19,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:19,046 INFO L93 Difference]: Finished difference Result 120 states and 158 transitions. [2018-09-20 15:03:19,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:03:19,048 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-09-20 15:03:19,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:19,060 INFO L225 Difference]: With dead ends: 120 [2018-09-20 15:03:19,060 INFO L226 Difference]: Without dead ends: 60 [2018-09-20 15:03:19,064 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:03:19,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-09-20 15:03:19,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-09-20 15:03:19,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-09-20 15:03:19,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 74 transitions. [2018-09-20 15:03:19,114 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 74 transitions. Word has length 18 [2018-09-20 15:03:19,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:19,114 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 74 transitions. [2018-09-20 15:03:19,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:03:19,114 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2018-09-20 15:03:19,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-20 15:03:19,116 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:19,116 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:03:19,117 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:19,117 INFO L82 PathProgramCache]: Analyzing trace with hash -262001498, now seen corresponding path program 1 times [2018-09-20 15:03:19,117 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:03:19,117 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:03:19,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:03:19,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:19,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:03:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:03:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:03:19,250 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:03:19,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:03:19 BoogieIcfgContainer [2018-09-20 15:03:19,285 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:03:19,286 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:03:19,286 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:03:19,286 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:03:19,287 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:03:18" (3/4) ... [2018-09-20 15:03:19,291 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:03:19,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:03:19,292 INFO L168 Benchmark]: Toolchain (without parser) took 1716.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -124.9 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:19,295 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:03:19,295 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.95 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:19,296 INFO L168 Benchmark]: Boogie Preprocessor took 51.76 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:19,297 INFO L168 Benchmark]: RCFGBuilder took 741.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -168.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:19,298 INFO L168 Benchmark]: TraceAbstraction took 552.64 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: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:19,299 INFO L168 Benchmark]: Witness Printer took 5.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:03:19,304 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 356.95 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 51.76 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 741.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -168.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 552.64 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: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * Witness Printer took 5.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 96]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 57, overapproximation of someUnaryDOUBLEoperation at line 91, overapproximation of bitwiseAnd at line 58, overapproximation of someBinaryDOUBLEComparisonOperation at line 95. Possible FailurePath: [L17] static const double huge_ceil = 1.0e300; VAL [\old(huge_ceil)=6442450947, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] double x = -0.0; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L92] CALL, EXPR ceil_double(x) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i, j; VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450949] [L23] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=6442450949, ew_u={6442450950:0}, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450949] [L24] FCALL ew_u.value = (x) VAL [\old(x)=6442450949, ew_u={6442450950:0}, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450949] [L25] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=6442450949, ew_u={6442450950:0}, ew_u.parts.msw=6442450944, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450949] [L25] (i0) = ew_u.parts.msw VAL [\old(x)=6442450949, ew_u={6442450950:0}, ew_u.parts.msw=6442450944, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, x=6442450949] [L25] FCALL (i0) = ew_u.parts.msw VAL [(i0) = ew_u.parts.msw=6442450948, \old(x)=6442450949, ew_u={6442450950:0}, ew_u.parts.msw=6442450944, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, x=6442450949] [L26] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=6442450949, ew_u={6442450950:0}, ew_u.parts.lsw=3, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, x=6442450949] [L26] (i1) = ew_u.parts.lsw VAL [\old(x)=6442450949, ew_u={6442450950:0}, ew_u.parts.lsw=3, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, x=6442450949] [L26] FCALL (i1) = ew_u.parts.lsw VAL [(i1) = ew_u.parts.lsw=6442450946, \old(x)=6442450949, ew_u={6442450950:0}, ew_u.parts.lsw=3, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, x=6442450949] [L27] COND FALSE !(0) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, x=6442450949] [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, x=6442450949] [L29] COND FALSE !(j0 < 20) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, j0=20, x=6442450949] [L51] COND FALSE !(j0 > 51) [L57] i = ((__uint32_t)(0xffffffff)) >> (j0 - 20) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, j0=20, x=6442450949] [L58] COND TRUE (i1 & i) == 0 [L59] RET return x; VAL [\old(x)=6442450949, \result=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, j0=20, x=6442450949] [L92] EXPR ceil_double(x) VAL [ceil_double(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450949] [L92] double res = ceil_double(x); [L95] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=6442450949, x=6442450949] [L96] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=6442450949, x=6442450949] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 67 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 78 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=64occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 15:03:21,783 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:03:21,785 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:03:21,798 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:03:21,799 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:03:21,800 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:03:21,801 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:03:21,803 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:03:21,805 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:03:21,806 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:03:21,807 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:03:21,808 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:03:21,808 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:03:21,810 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:03:21,811 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:03:21,812 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:03:21,813 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:03:21,815 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:03:21,817 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:03:21,818 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:03:21,819 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:03:21,821 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:03:21,823 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:03:21,823 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:03:21,823 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:03:21,824 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:03:21,826 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:03:21,827 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:03:21,827 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:03:21,828 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:03:21,829 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:03:21,830 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:03:21,830 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:03:21,830 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:03:21,831 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:03:21,832 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:03:21,833 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:03:21,862 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:03:21,862 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:03:21,863 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:03:21,863 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:03:21,865 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:03:21,865 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:03:21,865 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:03:21,865 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:03:21,866 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:03:21,866 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:03:21,866 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:03:21,866 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:03:21,866 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:03:21,867 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:03:21,867 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:03:21,867 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:03:21,868 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:03:21,868 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:03:21,868 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:03:21,868 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:03:21,868 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:03:21,868 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:03:21,869 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:03:21,869 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:03:21,869 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:03:21,869 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:03:21,870 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:03:21,871 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:03:21,871 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:03:21,871 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:03:21,871 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:03:21,871 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 -> 8be2489bdcd97218605067fa4593696f9050abdf [2018-09-20 15:03:21,924 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:03:21,936 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:03:21,940 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:03:21,944 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:03:21,944 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:03:21,945 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-09-20 15:03:22,295 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7749142b7/65442c9a01ba4c088b7eac59663a372b/FLAG11d83134e [2018-09-20 15:03:22,435 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:03:22,436 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-09-20 15:03:22,443 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7749142b7/65442c9a01ba4c088b7eac59663a372b/FLAG11d83134e [2018-09-20 15:03:22,461 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7749142b7/65442c9a01ba4c088b7eac59663a372b [2018-09-20 15:03:22,468 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:03:22,472 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:03:22,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:03:22,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:03:22,481 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:03:22,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:03:22" (1/1) ... [2018-09-20 15:03:22,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72ef386c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:22, skipping insertion in model container [2018-09-20 15:03:22,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:03:22" (1/1) ... [2018-09-20 15:03:22,499 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:03:22,815 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:03:22,837 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:03:22,888 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:03:22,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:22 WrapperNode [2018-09-20 15:03:22,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:03:22,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:03:22,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:03:22,942 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:03:22,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:22" (1/1) ... [2018-09-20 15:03:22,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:22" (1/1) ... [2018-09-20 15:03:22,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:22" (1/1) ... [2018-09-20 15:03:22,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:22" (1/1) ... [2018-09-20 15:03:23,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:22" (1/1) ... [2018-09-20 15:03:23,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:22" (1/1) ... [2018-09-20 15:03:23,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:22" (1/1) ... [2018-09-20 15:03:23,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:03:23,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:03:23,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:03:23,038 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:03:23,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:03:23,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:03:23,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:03:23,210 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 15:03:23,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-09-20 15:03:23,210 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:03:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:03:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 15:03:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-09-20 15:03:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:03:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-20 15:03:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:03:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:03:23,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:03:23,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-20 15:03:23,212 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:03:23,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:03:23,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:03:23,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-20 15:03:23,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:03:23,496 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:03:23,549 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:03:23,599 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:03:25,050 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:03:25,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:03:25 BoogieIcfgContainer [2018-09-20 15:03:25,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:03:25,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:03:25,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:03:25,055 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:03:25,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:03:22" (1/3) ... [2018-09-20 15:03:25,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63f42998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:03:25, skipping insertion in model container [2018-09-20 15:03:25,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:22" (2/3) ... [2018-09-20 15:03:25,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63f42998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:03:25, skipping insertion in model container [2018-09-20 15:03:25,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:03:25" (3/3) ... [2018-09-20 15:03:25,059 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a_true-unreach-call.c [2018-09-20 15:03:25,068 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:03:25,076 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:03:25,124 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:03:25,125 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:03:25,125 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:03:25,125 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:03:25,125 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:03:25,126 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:03:25,128 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:03:25,128 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:03:25,128 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:03:25,154 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-09-20 15:03:25,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-20 15:03:25,164 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:25,165 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:03:25,167 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:25,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1001944266, now seen corresponding path program 1 times [2018-09-20 15:03:25,175 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:03:25,176 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 15:03:25,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:25,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:25,256 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:03:25,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:25,278 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:03:25,295 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:25,295 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:03:25,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:03:25,311 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:03:25,311 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:03:25,314 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 2 states. [2018-09-20 15:03:25,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:25,339 INFO L93 Difference]: Finished difference Result 120 states and 158 transitions. [2018-09-20 15:03:25,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:03:25,341 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-09-20 15:03:25,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:25,354 INFO L225 Difference]: With dead ends: 120 [2018-09-20 15:03:25,354 INFO L226 Difference]: Without dead ends: 60 [2018-09-20 15:03:25,358 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:03:25,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-09-20 15:03:25,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-09-20 15:03:25,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-09-20 15:03:25,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 74 transitions. [2018-09-20 15:03:25,403 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 74 transitions. Word has length 18 [2018-09-20 15:03:25,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:25,404 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 74 transitions. [2018-09-20 15:03:25,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:03:25,404 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2018-09-20 15:03:25,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-20 15:03:25,406 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:25,406 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:03:25,406 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:25,407 INFO L82 PathProgramCache]: Analyzing trace with hash -262001498, now seen corresponding path program 1 times [2018-09-20 15:03:25,407 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:03:25,407 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 15:03:25,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:25,513 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:03:25,714 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 15:03:25,735 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 15:03:25,736 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:25,759 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:25,787 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:03:25,788 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:03:25,869 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 15:03:25,889 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 15:03:25,890 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:25,895 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:25,911 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:03:25,912 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:03:26,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:26,397 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:03:26,414 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:26,414 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:03:26,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:03:26,416 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:03:26,417 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:03:26,418 INFO L87 Difference]: Start difference. First operand 60 states and 74 transitions. Second operand 9 states. [2018-09-20 15:03:27,336 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-20 15:03:27,781 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-20 15:03:34,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:34,122 INFO L93 Difference]: Finished difference Result 116 states and 129 transitions. [2018-09-20 15:03:34,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-20 15:03:34,124 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2018-09-20 15:03:34,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:34,128 INFO L225 Difference]: With dead ends: 116 [2018-09-20 15:03:34,129 INFO L226 Difference]: Without dead ends: 69 [2018-09-20 15:03:34,130 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-09-20 15:03:34,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-09-20 15:03:34,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 51. [2018-09-20 15:03:34,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-20 15:03:34,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2018-09-20 15:03:34,140 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 31 [2018-09-20 15:03:34,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:34,140 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2018-09-20 15:03:34,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:03:34,140 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2018-09-20 15:03:34,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-20 15:03:34,143 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:34,143 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:03:34,143 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:34,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1963531185, now seen corresponding path program 1 times [2018-09-20 15:03:34,144 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:03:34,144 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 15:03:34,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:34,205 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:03:34,236 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 15:03:34,255 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 15:03:34,255 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:34,261 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:34,279 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:03:34,279 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:03:34,357 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 15:03:34,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 15:03:34,363 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:34,367 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:34,378 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:03:34,378 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:03:34,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:34,664 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:03:34,680 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:34,680 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:03:34,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:03:34,681 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:03:34,681 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:03:34,683 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand 9 states. [2018-09-20 15:03:39,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:39,237 INFO L93 Difference]: Finished difference Result 103 states and 108 transitions. [2018-09-20 15:03:39,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-20 15:03:39,239 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2018-09-20 15:03:39,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:39,240 INFO L225 Difference]: With dead ends: 103 [2018-09-20 15:03:39,241 INFO L226 Difference]: Without dead ends: 62 [2018-09-20 15:03:39,242 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-09-20 15:03:39,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-09-20 15:03:39,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 47. [2018-09-20 15:03:39,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-09-20 15:03:39,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2018-09-20 15:03:39,250 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 31 [2018-09-20 15:03:39,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:39,250 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2018-09-20 15:03:39,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:03:39,250 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2018-09-20 15:03:39,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-20 15:03:39,252 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:39,252 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] [2018-09-20 15:03:39,252 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:39,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1759812404, now seen corresponding path program 1 times [2018-09-20 15:03:39,253 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:03:39,253 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-20 15:03:39,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:39,411 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:03:42,622 WARN L178 SmtUtils]: Spent 1.66 s on a formula simplification that was a NOOP. DAG size: 11 [2018-09-20 15:03:42,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:42,634 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:03:42,653 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:42,653 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-20 15:03:42,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-20 15:03:42,654 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-20 15:03:42,654 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-20 15:03:42,655 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 6 states. [2018-09-20 15:03:46,902 WARN L178 SmtUtils]: Spent 1.86 s on a formula simplification that was a NOOP. DAG size: 13 [2018-09-20 15:03:49,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:49,028 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2018-09-20 15:03:49,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-20 15:03:49,040 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2018-09-20 15:03:49,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:49,042 INFO L225 Difference]: With dead ends: 66 [2018-09-20 15:03:49,042 INFO L226 Difference]: Without dead ends: 47 [2018-09-20 15:03:49,042 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-09-20 15:03:49,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-09-20 15:03:49,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-09-20 15:03:49,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-09-20 15:03:49,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2018-09-20 15:03:49,049 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 44 [2018-09-20 15:03:49,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:49,049 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2018-09-20 15:03:49,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-20 15:03:49,049 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2018-09-20 15:03:49,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-20 15:03:49,050 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:49,051 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] [2018-09-20 15:03:49,051 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:49,051 INFO L82 PathProgramCache]: Analyzing trace with hash 623561467, now seen corresponding path program 1 times [2018-09-20 15:03:49,052 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:03:49,052 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-20 15:03:49,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:49,251 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:03:49,286 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 13 treesize of output 10 [2018-09-20 15:03:49,290 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-09-20 15:03:49,291 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:49,301 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:49,313 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:49,314 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-09-20 15:03:49,347 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-09-20 15:03:49,353 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:03:49,355 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:03:49,357 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 35 [2018-09-20 15:03:49,358 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:49,376 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:49,387 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:49,388 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2018-09-20 15:03:49,425 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 48 [2018-09-20 15:03:49,430 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:03:49,432 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:03:49,435 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 22 [2018-09-20 15:03:49,435 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:49,446 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:49,450 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:49,450 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:64, output treesize:15 [2018-09-20 15:03:49,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:49,644 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:03:49,662 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:49,663 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-20 15:03:49,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-20 15:03:49,664 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-20 15:03:49,664 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-09-20 15:03:49,664 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 11 states. [2018-09-20 15:03:50,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:50,738 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2018-09-20 15:03:50,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-20 15:03:50,740 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 45 [2018-09-20 15:03:50,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:50,742 INFO L225 Difference]: With dead ends: 66 [2018-09-20 15:03:50,742 INFO L226 Difference]: Without dead ends: 47 [2018-09-20 15:03:50,743 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2018-09-20 15:03:50,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-09-20 15:03:50,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-09-20 15:03:50,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-09-20 15:03:50,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2018-09-20 15:03:50,748 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 45 [2018-09-20 15:03:50,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:50,749 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2018-09-20 15:03:50,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-20 15:03:50,750 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2018-09-20 15:03:50,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-20 15:03:50,751 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:50,752 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:03:50,752 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:50,752 INFO L82 PathProgramCache]: Analyzing trace with hash -2005267350, now seen corresponding path program 1 times [2018-09-20 15:03:50,753 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:03:50,753 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-20 15:03:50,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:50,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:50,909 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:03:50,988 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 15:03:50,995 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 15:03:50,996 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:51,001 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:51,015 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:03:51,015 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:03:51,055 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 15:03:51,063 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 15:03:51,064 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:51,068 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:51,077 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:03:51,078 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:03:51,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:51,256 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:03:51,275 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:51,275 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-20 15:03:51,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-20 15:03:51,276 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-20 15:03:51,276 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-20 15:03:51,276 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand 8 states. [2018-09-20 15:03:54,225 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-20 15:03:54,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:54,491 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2018-09-20 15:03:54,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-20 15:03:54,493 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2018-09-20 15:03:54,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:54,493 INFO L225 Difference]: With dead ends: 62 [2018-09-20 15:03:54,494 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:03:54,495 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-20 15:03:54,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:03:54,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:03:54,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:03:54,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:03:54,496 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2018-09-20 15:03:54,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:54,496 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:03:54,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-20 15:03:54,497 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:03:54,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:03:54,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:03:54,811 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 11 [2018-09-20 15:03:54,950 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 10 [2018-09-20 15:03:54,953 INFO L426 ceAbstractionStarter]: For program point isnan_doubleENTRY(line 15) no Hoare annotation was computed. [2018-09-20 15:03:54,953 INFO L426 ceAbstractionStarter]: For program point isnan_doubleEXIT(line 15) no Hoare annotation was computed. [2018-09-20 15:03:54,953 INFO L426 ceAbstractionStarter]: For program point isnan_doubleFINAL(line 15) no Hoare annotation was computed. [2018-09-20 15:03:54,953 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:03:54,954 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:03:54,954 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:03:54,954 INFO L426 ceAbstractionStarter]: For program point L60(lines 60 72) no Hoare annotation was computed. [2018-09-20 15:03:54,954 INFO L426 ceAbstractionStarter]: For program point L52(lines 52 55) no Hoare annotation was computed. [2018-09-20 15:03:54,954 INFO L426 ceAbstractionStarter]: For program point L77(line 77) no Hoare annotation was computed. [2018-09-20 15:03:54,954 INFO L426 ceAbstractionStarter]: For program point L44(lines 44 49) no Hoare annotation was computed. [2018-09-20 15:03:54,954 INFO L426 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-09-20 15:03:54,954 INFO L426 ceAbstractionStarter]: For program point L61-1(lines 61 70) no Hoare annotation was computed. [2018-09-20 15:03:54,954 INFO L426 ceAbstractionStarter]: For program point L78(line 78) no Hoare annotation was computed. [2018-09-20 15:03:54,954 INFO L426 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-09-20 15:03:54,955 INFO L426 ceAbstractionStarter]: For program point L78-1(line 78) no Hoare annotation was computed. [2018-09-20 15:03:54,955 INFO L426 ceAbstractionStarter]: For program point L78-2(line 78) no Hoare annotation was computed. [2018-09-20 15:03:54,955 INFO L426 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-09-20 15:03:54,955 INFO L426 ceAbstractionStarter]: For program point L78-3(line 78) no Hoare annotation was computed. [2018-09-20 15:03:54,955 INFO L426 ceAbstractionStarter]: For program point L62(lines 62 69) no Hoare annotation was computed. [2018-09-20 15:03:54,955 INFO L426 ceAbstractionStarter]: For program point L29(lines 29 73) no Hoare annotation was computed. [2018-09-20 15:03:54,955 INFO L429 ceAbstractionStarter]: At program point ceil_doubleENTRY(lines 19 81) the Hoare annotation is: true [2018-09-20 15:03:54,955 INFO L426 ceAbstractionStarter]: For program point ceil_doubleFINAL(lines 19 81) no Hoare annotation was computed. [2018-09-20 15:03:54,955 INFO L426 ceAbstractionStarter]: For program point ceil_doubleEXIT(lines 19 81) no Hoare annotation was computed. [2018-09-20 15:03:54,956 INFO L426 ceAbstractionStarter]: For program point L30(lines 30 50) no Hoare annotation was computed. [2018-09-20 15:03:54,956 INFO L426 ceAbstractionStarter]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2018-09-20 15:03:54,956 INFO L422 ceAbstractionStarter]: At program point L22-3(lines 22 27) the Hoare annotation is: (or (not (= ((_ to_fp 11 53) RNE 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0)) (= |ceil_double_#in~x| ceil_double_~x)) [2018-09-20 15:03:54,956 INFO L426 ceAbstractionStarter]: For program point L22-4(lines 22 27) no Hoare annotation was computed. [2018-09-20 15:03:54,956 INFO L426 ceAbstractionStarter]: For program point L31(lines 31 39) no Hoare annotation was computed. [2018-09-20 15:03:54,956 INFO L426 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-09-20 15:03:54,956 INFO L426 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-09-20 15:03:54,959 INFO L426 ceAbstractionStarter]: For program point L23-2(line 23) no Hoare annotation was computed. [2018-09-20 15:03:54,959 INFO L426 ceAbstractionStarter]: For program point L23-3(line 23) no Hoare annotation was computed. [2018-09-20 15:03:54,959 INFO L426 ceAbstractionStarter]: For program point L32(lines 32 38) no Hoare annotation was computed. [2018-09-20 15:03:54,959 INFO L426 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-09-20 15:03:54,959 INFO L426 ceAbstractionStarter]: For program point L74(lines 74 79) no Hoare annotation was computed. [2018-09-20 15:03:54,960 INFO L426 ceAbstractionStarter]: For program point L74-2(lines 19 81) no Hoare annotation was computed. [2018-09-20 15:03:54,960 INFO L426 ceAbstractionStarter]: For program point L74-3(lines 74 79) no Hoare annotation was computed. [2018-09-20 15:03:54,960 INFO L426 ceAbstractionStarter]: For program point L66(lines 66 67) no Hoare annotation was computed. [2018-09-20 15:03:54,960 INFO L426 ceAbstractionStarter]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2018-09-20 15:03:54,960 INFO L426 ceAbstractionStarter]: For program point L58(lines 58 59) no Hoare annotation was computed. [2018-09-20 15:03:54,960 INFO L426 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-09-20 15:03:54,960 INFO L426 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-09-20 15:03:54,960 INFO L426 ceAbstractionStarter]: For program point L25-2(line 25) no Hoare annotation was computed. [2018-09-20 15:03:54,960 INFO L426 ceAbstractionStarter]: For program point L75(line 75) no Hoare annotation was computed. [2018-09-20 15:03:54,960 INFO L426 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-09-20 15:03:54,961 INFO L426 ceAbstractionStarter]: For program point L75-1(line 75) no Hoare annotation was computed. [2018-09-20 15:03:54,961 INFO L426 ceAbstractionStarter]: For program point L75-2(line 75) no Hoare annotation was computed. [2018-09-20 15:03:54,961 INFO L426 ceAbstractionStarter]: For program point L75-3(line 75) no Hoare annotation was computed. [2018-09-20 15:03:54,961 INFO L426 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-09-20 15:03:54,961 INFO L426 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-09-20 15:03:54,961 INFO L426 ceAbstractionStarter]: For program point L26-2(line 26) no Hoare annotation was computed. [2018-09-20 15:03:54,961 INFO L426 ceAbstractionStarter]: For program point L26-3(line 26) no Hoare annotation was computed. [2018-09-20 15:03:54,961 INFO L426 ceAbstractionStarter]: For program point L51(lines 51 73) no Hoare annotation was computed. [2018-09-20 15:03:54,962 INFO L426 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-09-20 15:03:54,962 INFO L426 ceAbstractionStarter]: For program point L35(lines 35 38) no Hoare annotation was computed. [2018-09-20 15:03:54,962 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:03:54,962 INFO L422 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 11 53) RNE 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0) [2018-09-20 15:03:54,962 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:03:54,962 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:03:54,962 INFO L426 ceAbstractionStarter]: For program point L96(line 96) no Hoare annotation was computed. [2018-09-20 15:03:54,963 INFO L426 ceAbstractionStarter]: For program point L95(lines 95 98) no Hoare annotation was computed. [2018-09-20 15:03:54,963 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 96) no Hoare annotation was computed. [2018-09-20 15:03:54,963 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 83 101) the Hoare annotation is: true [2018-09-20 15:03:54,963 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 83 101) no Hoare annotation was computed. [2018-09-20 15:03:54,963 INFO L422 ceAbstractionStarter]: At program point L92(line 92) the Hoare annotation is: (or (not (= ((_ to_fp 11 53) RNE 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0)) (= main_~x~0 (fp.neg (_ +zero 11 53)))) [2018-09-20 15:03:54,963 INFO L426 ceAbstractionStarter]: For program point L92-1(line 92) no Hoare annotation was computed. [2018-09-20 15:03:54,963 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 83 101) no Hoare annotation was computed. [2018-09-20 15:03:54,972 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:03:54,977 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:03:54,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:03:54 BoogieIcfgContainer [2018-09-20 15:03:54,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:03:54,980 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:03:54,980 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:03:54,980 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:03:54,981 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:03:25" (3/4) ... [2018-09-20 15:03:54,984 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:03:54,990 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-09-20 15:03:54,990 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:03:54,991 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_double [2018-09-20 15:03:54,991 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:03:54,997 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-09-20 15:03:54,997 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-09-20 15:03:54,998 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:03:55,025 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E300) == huge_ceil) || \old(x) == x [2018-09-20 15:03:55,066 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:03:55,066 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:03:55,067 INFO L168 Benchmark]: Toolchain (without parser) took 32598.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.9 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -143.0 MB). Peak memory consumption was 61.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:55,068 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:03:55,069 INFO L168 Benchmark]: CACSL2BoogieTranslator took 468.20 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:55,070 INFO L168 Benchmark]: Boogie Preprocessor took 90.38 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:55,071 INFO L168 Benchmark]: RCFGBuilder took 2013.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -169.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:55,072 INFO L168 Benchmark]: TraceAbstraction took 29927.65 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 60.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.4 MB). Peak memory consumption was 62.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:55,073 INFO L168 Benchmark]: Witness Printer took 86.79 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: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:55,077 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 468.20 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 90.38 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 2013.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -169.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 29927.65 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 60.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.4 MB). Peak memory consumption was 62.7 MB. Max. memory is 11.5 GB. * Witness Printer took 86.79 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: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 96]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant [2018-09-20 15:03:55,083 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:03:55,084 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E300) == huge_ceil) || \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 67 locations, 1 error locations. SAFE Result, 29.8s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 23.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 294 SDtfs, 492 SDslu, 933 SDs, 0 SdLazy, 602 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 250 GetRequests, 174 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 11.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred 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, 6 MinimizatonAttempts, 33 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 30 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 34 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 215 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 209 ConstructedInterpolants, 66 QuantifiedInterpolants, 72251 SizeOfPredicates, 35 NumberOfNonLiveVariables, 437 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...