./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1091_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 84dba58cac25505e0eb3c404a47a071a268de901 .......................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 84dba58cac25505e0eb3c404a47a071a268de901 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 06:32:08,870 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 06:32:08,872 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 06:32:08,880 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 06:32:08,880 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 06:32:08,881 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 06:32:08,882 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 06:32:08,883 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 06:32:08,884 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 06:32:08,885 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 06:32:08,885 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 06:32:08,885 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 06:32:08,886 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 06:32:08,887 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 06:32:08,887 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 06:32:08,888 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 06:32:08,889 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 06:32:08,890 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 06:32:08,891 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 06:32:08,892 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 06:32:08,893 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 06:32:08,894 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 06:32:08,895 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 06:32:08,896 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 06:32:08,896 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 06:32:08,896 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 06:32:08,897 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 06:32:08,898 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 06:32:08,898 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 06:32:08,899 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 06:32:08,899 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 06:32:08,899 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 06:32:08,899 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 06:32:08,899 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 06:32:08,900 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 06:32:08,900 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 06:32:08,900 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 06:32:08,907 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 06:32:08,907 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 06:32:08,908 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 06:32:08,908 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 06:32:08,908 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 06:32:08,908 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 06:32:08,908 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 06:32:08,908 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 06:32:08,908 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 06:32:08,908 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 06:32:08,908 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 06:32:08,908 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 06:32:08,908 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 06:32:08,909 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 06:32:08,909 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 06:32:08,909 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 06:32:08,909 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 06:32:08,909 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 06:32:08,909 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 06:32:08,909 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 06:32:08,909 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 06:32:08,909 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 06:32:08,909 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 06:32:08,909 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 06:32:08,910 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 06:32:08,910 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 06:32:08,910 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 06:32:08,910 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 06:32:08,910 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 06:32:08,910 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 06:32:08,910 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 06:32:08,910 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 06:32:08,910 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 06:32:08,910 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 06:32:08,910 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 06:32:08,910 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 06:32:08,910 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan 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 -> Taipan 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 -> 84dba58cac25505e0eb3c404a47a071a268de901 [2018-12-03 06:32:08,934 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 06:32:08,943 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 06:32:08,945 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 06:32:08,947 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 06:32:08,947 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 06:32:08,947 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1091_true-unreach-call.c [2018-12-03 06:32:08,986 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/data/02d71e7a6/a2ee4e857e5f423db927cf61cb802ac6/FLAGbacc7f5ea [2018-12-03 06:32:09,369 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 06:32:09,370 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/sv-benchmarks/c/float-newlib/double_req_bl_1091_true-unreach-call.c [2018-12-03 06:32:09,373 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/data/02d71e7a6/a2ee4e857e5f423db927cf61cb802ac6/FLAGbacc7f5ea [2018-12-03 06:32:09,381 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/data/02d71e7a6/a2ee4e857e5f423db927cf61cb802ac6 [2018-12-03 06:32:09,383 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 06:32:09,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 06:32:09,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 06:32:09,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 06:32:09,387 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 06:32:09,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 06:32:09" (1/1) ... [2018-12-03 06:32:09,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651df91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:09, skipping insertion in model container [2018-12-03 06:32:09,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 06:32:09" (1/1) ... [2018-12-03 06:32:09,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 06:32:09,408 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 06:32:09,505 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 06:32:09,508 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 06:32:09,526 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 06:32:09,538 INFO L195 MainTranslator]: Completed translation [2018-12-03 06:32:09,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:09 WrapperNode [2018-12-03 06:32:09,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 06:32:09,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 06:32:09,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 06:32:09,539 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 06:32:09,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:09" (1/1) ... [2018-12-03 06:32:09,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:09" (1/1) ... [2018-12-03 06:32:09,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 06:32:09,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 06:32:09,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 06:32:09,589 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 06:32:09,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:09" (1/1) ... [2018-12-03 06:32:09,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:09" (1/1) ... [2018-12-03 06:32:09,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:09" (1/1) ... [2018-12-03 06:32:09,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:09" (1/1) ... [2018-12-03 06:32:09,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:09" (1/1) ... [2018-12-03 06:32:09,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:09" (1/1) ... [2018-12-03 06:32:09,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:09" (1/1) ... [2018-12-03 06:32:09,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 06:32:09,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 06:32:09,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 06:32:09,612 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 06:32:09,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/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 [2018-12-03 06:32:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-03 06:32:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-03 06:32:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-12-03 06:32:09,643 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-12-03 06:32:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 06:32:09,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 06:32:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-03 06:32:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 06:32:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-12-03 06:32:09,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-12-03 06:32:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 06:32:09,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 06:32:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-03 06:32:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 06:32:09,644 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 06:32:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 06:32:09,808 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 06:32:09,808 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-03 06:32:09,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:32:09 BoogieIcfgContainer [2018-12-03 06:32:09,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 06:32:09,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 06:32:09,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 06:32:09,811 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 06:32:09,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 06:32:09" (1/3) ... [2018-12-03 06:32:09,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60358479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 06:32:09, skipping insertion in model container [2018-12-03 06:32:09,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:09" (2/3) ... [2018-12-03 06:32:09,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60358479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 06:32:09, skipping insertion in model container [2018-12-03 06:32:09,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:32:09" (3/3) ... [2018-12-03 06:32:09,813 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091_true-unreach-call.c [2018-12-03 06:32:09,819 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 06:32:09,825 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 06:32:09,834 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 06:32:09,853 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 06:32:09,853 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 06:32:09,853 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 06:32:09,853 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 06:32:09,853 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 06:32:09,853 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 06:32:09,853 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 06:32:09,853 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 06:32:09,863 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-12-03 06:32:09,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-03 06:32:09,867 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:32:09,868 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:32:09,869 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:32:09,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:32:09,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1881433434, now seen corresponding path program 1 times [2018-12-03 06:32:09,874 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:32:09,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:32:09,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:32:09,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:32:09,903 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:32:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:32:09,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:32:09,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:32:09,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 06:32:09,953 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:32:09,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 06:32:09,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 06:32:09,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 06:32:09,965 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2018-12-03 06:32:09,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:32:09,977 INFO L93 Difference]: Finished difference Result 86 states and 124 transitions. [2018-12-03 06:32:09,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 06:32:09,978 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-12-03 06:32:09,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:32:09,984 INFO L225 Difference]: With dead ends: 86 [2018-12-03 06:32:09,984 INFO L226 Difference]: Without dead ends: 43 [2018-12-03 06:32:09,986 INFO L631 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 [2018-12-03 06:32:09,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-03 06:32:10,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-12-03 06:32:10,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-03 06:32:10,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2018-12-03 06:32:10,008 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 23 [2018-12-03 06:32:10,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:32:10,008 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2018-12-03 06:32:10,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 06:32:10,008 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2018-12-03 06:32:10,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-03 06:32:10,009 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:32:10,009 INFO L402 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] [2018-12-03 06:32:10,009 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:32:10,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:32:10,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1135906069, now seen corresponding path program 1 times [2018-12-03 06:32:10,010 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:32:10,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:32:10,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:32:10,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:32:10,010 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:32:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 06:32:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 06:32:10,060 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-03 06:32:10,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 06:32:10 BoogieIcfgContainer [2018-12-03 06:32:10,077 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 06:32:10,077 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 06:32:10,077 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 06:32:10,077 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 06:32:10,078 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:32:09" (3/4) ... [2018-12-03 06:32:10,080 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-03 06:32:10,080 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 06:32:10,080 INFO L168 Benchmark]: Toolchain (without parser) took 697.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -113.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2018-12-03 06:32:10,081 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 06:32:10,081 INFO L168 Benchmark]: CACSL2BoogieTranslator took 155.01 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-03 06:32:10,082 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -191.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-03 06:32:10,082 INFO L168 Benchmark]: Boogie Preprocessor took 22.43 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. [2018-12-03 06:32:10,082 INFO L168 Benchmark]: RCFGBuilder took 197.24 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: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-12-03 06:32:10,083 INFO L168 Benchmark]: TraceAbstraction took 267.87 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: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2018-12-03 06:32:10,083 INFO L168 Benchmark]: Witness Printer took 2.67 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-03 06:32:10,085 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 155.01 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -191.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.43 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. * RCFGBuilder took 197.24 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: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 267.87 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: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.67 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 95]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 41, overapproximation of bitwiseOr at line 42, overapproximation of someBinaryArithmeticDOUBLEoperation at line 90, overapproximation of bitwiseAnd at line 28, overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L17] static const double huge_ceil = 1.0e300; VAL [\old(huge_ceil)=10737418244, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L90] double x = 0.0 / 0.0; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] CALL, EXPR ceil_double(x) VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i, j; VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418245] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, x=10737418245] [L29] COND TRUE j0 < 20 VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418245] [L30] COND FALSE !(j0 < 0) [L41] i = (0x000fffff) >> j0 VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418245] [L42] COND TRUE ((i0 & i) | i1) == 0 [L43] return x; VAL [\old(x)=10737418245, \result=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418245] [L91] RET, EXPR ceil_double(x) VAL [ceil_double(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418245] [L91] double res = ceil_double(x); [L94] CALL, EXPR isnan_double(res) VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L15] return x != x; VAL [\old(x)=10737418245, \result=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418245] [L94] RET, EXPR isnan_double(res) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isnan_double(res)=0, res=10737418245, x=10737418245] [L94] COND TRUE !isnan_double(res) [L95] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418245, x=10737418245] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 61 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=47occurred 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, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-03 06:32:11,407 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 06:32:11,408 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 06:32:11,415 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 06:32:11,415 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 06:32:11,415 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 06:32:11,416 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 06:32:11,417 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 06:32:11,418 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 06:32:11,418 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 06:32:11,419 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 06:32:11,419 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 06:32:11,419 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 06:32:11,420 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 06:32:11,420 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 06:32:11,421 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 06:32:11,421 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 06:32:11,422 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 06:32:11,423 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 06:32:11,424 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 06:32:11,424 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 06:32:11,425 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 06:32:11,426 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 06:32:11,426 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 06:32:11,426 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 06:32:11,427 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 06:32:11,427 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 06:32:11,428 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 06:32:11,428 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 06:32:11,429 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 06:32:11,429 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 06:32:11,429 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 06:32:11,429 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 06:32:11,429 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 06:32:11,430 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 06:32:11,430 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 06:32:11,430 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-03 06:32:11,438 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 06:32:11,438 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 06:32:11,439 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 06:32:11,439 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 06:32:11,439 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 06:32:11,439 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 06:32:11,439 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 06:32:11,439 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 06:32:11,439 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 06:32:11,439 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 06:32:11,440 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 06:32:11,440 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 06:32:11,440 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 06:32:11,440 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 06:32:11,440 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 06:32:11,440 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 06:32:11,440 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 06:32:11,440 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-03 06:32:11,440 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-03 06:32:11,440 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 06:32:11,440 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 06:32:11,440 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-03 06:32:11,441 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 06:32:11,441 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 06:32:11,441 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 06:32:11,441 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 06:32:11,441 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 06:32:11,441 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 06:32:11,441 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 06:32:11,441 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 06:32:11,441 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 06:32:11,441 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-03 06:32:11,441 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 06:32:11,441 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-03 06:32:11,441 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-03 06:32:11,442 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan 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 -> Taipan 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 -> 84dba58cac25505e0eb3c404a47a071a268de901 [2018-12-03 06:32:11,460 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 06:32:11,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 06:32:11,472 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 06:32:11,474 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 06:32:11,474 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 06:32:11,474 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1091_true-unreach-call.c [2018-12-03 06:32:11,521 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/data/4275ce3e5/7a65576aa29447ccbb6f1b21c5ce4325/FLAG0adb63262 [2018-12-03 06:32:11,923 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 06:32:11,923 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/sv-benchmarks/c/float-newlib/double_req_bl_1091_true-unreach-call.c [2018-12-03 06:32:11,927 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/data/4275ce3e5/7a65576aa29447ccbb6f1b21c5ce4325/FLAG0adb63262 [2018-12-03 06:32:11,935 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/data/4275ce3e5/7a65576aa29447ccbb6f1b21c5ce4325 [2018-12-03 06:32:11,937 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 06:32:11,937 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 06:32:11,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 06:32:11,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 06:32:11,940 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 06:32:11,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 06:32:11" (1/1) ... [2018-12-03 06:32:11,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cdf94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:11, skipping insertion in model container [2018-12-03 06:32:11,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 06:32:11" (1/1) ... [2018-12-03 06:32:11,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 06:32:11,957 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 06:32:12,052 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 06:32:12,056 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 06:32:12,075 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 06:32:12,092 INFO L195 MainTranslator]: Completed translation [2018-12-03 06:32:12,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:12 WrapperNode [2018-12-03 06:32:12,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 06:32:12,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 06:32:12,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 06:32:12,093 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 06:32:12,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:12" (1/1) ... [2018-12-03 06:32:12,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:12" (1/1) ... [2018-12-03 06:32:12,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 06:32:12,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 06:32:12,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 06:32:12,109 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 06:32:12,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:12" (1/1) ... [2018-12-03 06:32:12,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:12" (1/1) ... [2018-12-03 06:32:12,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:12" (1/1) ... [2018-12-03 06:32:12,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:12" (1/1) ... [2018-12-03 06:32:12,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:12" (1/1) ... [2018-12-03 06:32:12,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:12" (1/1) ... [2018-12-03 06:32:12,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:12" (1/1) ... [2018-12-03 06:32:12,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 06:32:12,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 06:32:12,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 06:32:12,158 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 06:32:12,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/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 [2018-12-03 06:32:12,187 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-12-03 06:32:12,188 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-12-03 06:32:12,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-03 06:32:12,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 06:32:12,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 06:32:12,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 06:32:12,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-03 06:32:12,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-03 06:32:12,188 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-12-03 06:32:12,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-12-03 06:32:12,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 06:32:12,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 06:32:12,188 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 06:32:12,188 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 06:32:12,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-03 06:32:12,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 06:32:12,361 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 06:32:13,199 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 06:32:13,199 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-03 06:32:13,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:32:13 BoogieIcfgContainer [2018-12-03 06:32:13,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 06:32:13,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 06:32:13,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 06:32:13,202 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 06:32:13,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 06:32:11" (1/3) ... [2018-12-03 06:32:13,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498f4596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 06:32:13, skipping insertion in model container [2018-12-03 06:32:13,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:32:12" (2/3) ... [2018-12-03 06:32:13,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498f4596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 06:32:13, skipping insertion in model container [2018-12-03 06:32:13,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:32:13" (3/3) ... [2018-12-03 06:32:13,203 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091_true-unreach-call.c [2018-12-03 06:32:13,209 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 06:32:13,213 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 06:32:13,222 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 06:32:13,238 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-03 06:32:13,238 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 06:32:13,238 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 06:32:13,239 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 06:32:13,239 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 06:32:13,239 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 06:32:13,239 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 06:32:13,239 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 06:32:13,239 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 06:32:13,248 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-12-03 06:32:13,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-03 06:32:13,251 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:32:13,252 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:32:13,253 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:32:13,256 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:32:13,256 INFO L82 PathProgramCache]: Analyzing trace with hash -645750269, now seen corresponding path program 1 times [2018-12-03 06:32:13,258 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 06:32:13,259 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/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 [2018-12-03 06:32:13,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:32:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:32:13,309 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 06:32:13,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:32:13,321 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 06:32:13,329 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:32:13,329 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 06:32:13,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 06:32:13,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 06:32:13,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 06:32:13,341 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2018-12-03 06:32:13,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:32:13,354 INFO L93 Difference]: Finished difference Result 84 states and 122 transitions. [2018-12-03 06:32:13,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 06:32:13,355 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-12-03 06:32:13,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:32:13,362 INFO L225 Difference]: With dead ends: 84 [2018-12-03 06:32:13,362 INFO L226 Difference]: Without dead ends: 42 [2018-12-03 06:32:13,365 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 06:32:13,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-03 06:32:13,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-12-03 06:32:13,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-03 06:32:13,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2018-12-03 06:32:13,390 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 22 [2018-12-03 06:32:13,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:32:13,390 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2018-12-03 06:32:13,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 06:32:13,390 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2018-12-03 06:32:13,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-03 06:32:13,391 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:32:13,392 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:32:13,392 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:32:13,392 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:32:13,392 INFO L82 PathProgramCache]: Analyzing trace with hash 938296292, now seen corresponding path program 1 times [2018-12-03 06:32:13,392 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 06:32:13,393 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/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 [2018-12-03 06:32:13,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:32:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:32:13,439 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 06:32:13,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:32:13,570 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 06:32:13,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:32:13,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-03 06:32:13,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 06:32:13,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 06:32:13,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-03 06:32:13,579 INFO L87 Difference]: Start difference. First operand 42 states and 56 transitions. Second operand 9 states. [2018-12-03 06:32:14,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:32:14,892 INFO L93 Difference]: Finished difference Result 51 states and 65 transitions. [2018-12-03 06:32:14,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-03 06:32:14,893 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-12-03 06:32:14,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:32:14,894 INFO L225 Difference]: With dead ends: 51 [2018-12-03 06:32:14,894 INFO L226 Difference]: Without dead ends: 44 [2018-12-03 06:32:14,895 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-03 06:32:14,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-03 06:32:14,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2018-12-03 06:32:14,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-03 06:32:14,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 53 transitions. [2018-12-03 06:32:14,901 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 53 transitions. Word has length 23 [2018-12-03 06:32:14,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:32:14,901 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 53 transitions. [2018-12-03 06:32:14,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 06:32:14,901 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2018-12-03 06:32:14,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-03 06:32:14,902 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:32:14,902 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:32:14,902 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:32:14,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:32:14,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1029166427, now seen corresponding path program 1 times [2018-12-03 06:32:14,903 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 06:32:14,903 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/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 [2018-12-03 06:32:14,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:32:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:32:14,970 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 06:32:15,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:32:15,729 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 06:32:15,737 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:32:15,737 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-03 06:32:15,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 06:32:15,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 06:32:15,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-03 06:32:15,738 INFO L87 Difference]: Start difference. First operand 42 states and 53 transitions. Second operand 9 states. [2018-12-03 06:32:17,636 WARN L180 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-12-03 06:32:19,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:32:19,234 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2018-12-03 06:32:19,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-03 06:32:19,235 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-12-03 06:32:19,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:32:19,236 INFO L225 Difference]: With dead ends: 49 [2018-12-03 06:32:19,236 INFO L226 Difference]: Without dead ends: 41 [2018-12-03 06:32:19,236 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-03 06:32:19,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-03 06:32:19,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-03 06:32:19,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-03 06:32:19,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-12-03 06:32:19,239 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 23 [2018-12-03 06:32:19,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:32:19,239 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-12-03 06:32:19,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 06:32:19,240 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-12-03 06:32:19,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-03 06:32:19,240 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:32:19,240 INFO L402 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] [2018-12-03 06:32:19,240 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:32:19,240 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:32:19,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1513115684, now seen corresponding path program 1 times [2018-12-03 06:32:19,241 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 06:32:19,241 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/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 [2018-12-03 06:32:19,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:32:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:32:19,337 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 06:32:19,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:32:19,443 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 06:32:19,451 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:32:19,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 06:32:19,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 06:32:19,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 06:32:19,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 06:32:19,452 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand 7 states. [2018-12-03 06:32:21,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:32:21,333 INFO L93 Difference]: Finished difference Result 67 states and 76 transitions. [2018-12-03 06:32:21,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-03 06:32:21,334 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-03 06:32:21,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:32:21,335 INFO L225 Difference]: With dead ends: 67 [2018-12-03 06:32:21,335 INFO L226 Difference]: Without dead ends: 40 [2018-12-03 06:32:21,335 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2018-12-03 06:32:21,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-12-03 06:32:21,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2018-12-03 06:32:21,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-03 06:32:21,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-12-03 06:32:21,338 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 26 [2018-12-03 06:32:21,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:32:21,339 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-12-03 06:32:21,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 06:32:21,339 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-12-03 06:32:21,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-03 06:32:21,339 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:32:21,339 INFO L402 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] [2018-12-03 06:32:21,339 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:32:21,339 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:32:21,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1571354609, now seen corresponding path program 1 times [2018-12-03 06:32:21,340 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 06:32:21,340 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/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 [2018-12-03 06:32:21,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:32:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:32:21,445 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 06:32:21,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:32:21,581 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 06:32:21,590 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:32:21,590 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-03 06:32:21,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-03 06:32:21,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-03 06:32:21,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-03 06:32:21,590 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 8 states. [2018-12-03 06:32:22,019 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2018-12-03 06:32:22,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:32:22,720 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-12-03 06:32:22,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-03 06:32:22,720 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-12-03 06:32:22,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:32:22,720 INFO L225 Difference]: With dead ends: 40 [2018-12-03 06:32:22,720 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 06:32:22,721 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2018-12-03 06:32:22,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 06:32:22,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 06:32:22,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 06:32:22,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 06:32:22,721 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-12-03 06:32:22,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:32:22,721 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 06:32:22,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-03 06:32:22,721 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 06:32:22,721 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 06:32:22,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 06:32:22,778 INFO L451 ceAbstractionStarter]: At program point isnan_doubleENTRY(line 15) the Hoare annotation is: true [2018-12-03 06:32:22,778 INFO L448 ceAbstractionStarter]: For program point isnan_doubleEXIT(line 15) no Hoare annotation was computed. [2018-12-03 06:32:22,778 INFO L448 ceAbstractionStarter]: For program point isnan_doubleFINAL(line 15) no Hoare annotation was computed. [2018-12-03 06:32:22,778 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-03 06:32:22,778 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-03 06:32:22,778 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 06:32:22,778 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 39) no Hoare annotation was computed. [2018-12-03 06:32:22,778 INFO L448 ceAbstractionStarter]: For program point L60(lines 60 72) no Hoare annotation was computed. [2018-12-03 06:32:22,778 INFO L448 ceAbstractionStarter]: For program point L52(lines 52 55) no Hoare annotation was computed. [2018-12-03 06:32:22,778 INFO L448 ceAbstractionStarter]: For program point L44(lines 44 49) no Hoare annotation was computed. [2018-12-03 06:32:22,778 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 38) no Hoare annotation was computed. [2018-12-03 06:32:22,778 INFO L448 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-12-03 06:32:22,778 INFO L448 ceAbstractionStarter]: For program point L61-1(lines 61 70) no Hoare annotation was computed. [2018-12-03 06:32:22,778 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-12-03 06:32:22,778 INFO L448 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-12-03 06:32:22,778 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 79) no Hoare annotation was computed. [2018-12-03 06:32:22,779 INFO L448 ceAbstractionStarter]: For program point L74-1(lines 19 81) no Hoare annotation was computed. [2018-12-03 06:32:22,779 INFO L448 ceAbstractionStarter]: For program point L74-2(lines 74 79) no Hoare annotation was computed. [2018-12-03 06:32:22,779 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 67) no Hoare annotation was computed. [2018-12-03 06:32:22,779 INFO L448 ceAbstractionStarter]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2018-12-03 06:32:22,779 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 69) no Hoare annotation was computed. [2018-12-03 06:32:22,779 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 73) no Hoare annotation was computed. [2018-12-03 06:32:22,779 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 59) no Hoare annotation was computed. [2018-12-03 06:32:22,779 INFO L451 ceAbstractionStarter]: At program point ceil_doubleENTRY(lines 19 81) the Hoare annotation is: true [2018-12-03 06:32:22,779 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-12-03 06:32:22,779 INFO L448 ceAbstractionStarter]: For program point ceil_doubleFINAL(lines 19 81) no Hoare annotation was computed. [2018-12-03 06:32:22,779 INFO L448 ceAbstractionStarter]: For program point ceil_doubleEXIT(lines 19 81) no Hoare annotation was computed. [2018-12-03 06:32:22,779 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 50) no Hoare annotation was computed. [2018-12-03 06:32:22,779 INFO L448 ceAbstractionStarter]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2018-12-03 06:32:22,779 INFO L444 ceAbstractionStarter]: At program point L22-2(lines 22 27) the Hoare annotation is: (= |ceil_double_#in~x| ceil_double_~x) [2018-12-03 06:32:22,779 INFO L448 ceAbstractionStarter]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2018-12-03 06:32:22,779 INFO L448 ceAbstractionStarter]: For program point L51(lines 51 73) no Hoare annotation was computed. [2018-12-03 06:32:22,779 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 38) no Hoare annotation was computed. [2018-12-03 06:32:22,779 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 06:32:22,779 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-03 06:32:22,779 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 06:32:22,779 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 06:32:22,780 INFO L448 ceAbstractionStarter]: For program point L95(line 95) no Hoare annotation was computed. [2018-12-03 06:32:22,780 INFO L444 ceAbstractionStarter]: At program point L94(line 94) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= main_~x~0 .cse0) (= main_~res~0 .cse0))) [2018-12-03 06:32:22,780 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 83 100) the Hoare annotation is: true [2018-12-03 06:32:22,780 INFO L448 ceAbstractionStarter]: For program point L94-1(lines 94 97) no Hoare annotation was computed. [2018-12-03 06:32:22,780 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 83 100) no Hoare annotation was computed. [2018-12-03 06:32:22,780 INFO L444 ceAbstractionStarter]: At program point L91(line 91) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53))) [2018-12-03 06:32:22,780 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2018-12-03 06:32:22,780 INFO L448 ceAbstractionStarter]: For program point L91-1(line 91) no Hoare annotation was computed. [2018-12-03 06:32:22,780 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 83 100) no Hoare annotation was computed. [2018-12-03 06:32:22,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 06:32:22 BoogieIcfgContainer [2018-12-03 06:32:22,787 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 06:32:22,788 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 06:32:22,788 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 06:32:22,788 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 06:32:22,788 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:32:13" (3/4) ... [2018-12-03 06:32:22,790 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 06:32:22,794 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-12-03 06:32:22,794 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 06:32:22,794 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_double [2018-12-03 06:32:22,795 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 06:32:22,797 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-12-03 06:32:22,797 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-03 06:32:22,798 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 06:32:22,813 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-03 06:32:22,827 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_48d9a2ac-ae4b-48e6-ba21-bfd5d56aa6e9/bin-2019/utaipan/witness.graphml [2018-12-03 06:32:22,827 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 06:32:22,828 INFO L168 Benchmark]: Toolchain (without parser) took 10890.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 943.4 MB in the beginning and 850.7 MB in the end (delta: 92.7 MB). Peak memory consumption was 217.5 MB. Max. memory is 11.5 GB. [2018-12-03 06:32:22,828 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 06:32:22,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.91 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-03 06:32:22,828 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.94 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 06:32:22,829 INFO L168 Benchmark]: Boogie Preprocessor took 48.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -185.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-12-03 06:32:22,829 INFO L168 Benchmark]: RCFGBuilder took 1041.70 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2018-12-03 06:32:22,829 INFO L168 Benchmark]: TraceAbstraction took 9587.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 857.4 MB in the end (delta: 222.5 MB). Peak memory consumption was 222.5 MB. Max. memory is 11.5 GB. [2018-12-03 06:32:22,829 INFO L168 Benchmark]: Witness Printer took 39.54 ms. Allocated memory is still 1.2 GB. Free memory was 857.4 MB in the beginning and 850.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-03 06:32:22,830 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 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 153.91 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.94 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -185.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1041.70 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9587.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 857.4 MB in the end (delta: 222.5 MB). Peak memory consumption was 222.5 MB. Max. memory is 11.5 GB. * Witness Printer took 39.54 ms. Allocated memory is still 1.2 GB. Free memory was 857.4 MB in the beginning and 850.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 95]: 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 Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 46 locations, 1 error locations. SAFE Result, 9.5s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 7.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 186 SDtfs, 249 SDslu, 649 SDs, 0 SdLazy, 326 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 13 PreInvPairs, 16 NumberOfFragments, 28 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 20 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 116 ConstructedInterpolants, 21 QuantifiedInterpolants, 18833 SizeOfPredicates, 16 NumberOfNonLiveVariables, 333 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...