./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1210_false-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1210_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4632d05eeeec8083fb0c38c2d70eb822a2624ecb ........................................................................................................................................................................................................................................................................................................................................................... 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_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1210_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4632d05eeeec8083fb0c38c2d70eb822a2624ecb .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 14:04:35,478 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:04:35,479 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:04:35,487 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:04:35,487 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:04:35,488 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:04:35,489 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:04:35,490 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:04:35,491 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:04:35,492 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:04:35,492 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:04:35,493 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:04:35,493 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:04:35,494 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:04:35,495 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:04:35,495 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:04:35,496 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:04:35,497 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:04:35,499 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:04:35,500 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:04:35,501 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:04:35,502 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:04:35,503 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:04:35,504 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:04:35,504 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:04:35,505 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:04:35,505 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:04:35,506 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:04:35,506 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:04:35,507 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:04:35,507 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:04:35,508 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:04:35,508 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:04:35,508 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:04:35,509 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:04:35,510 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:04:35,510 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 14:04:35,517 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:04:35,517 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:04:35,518 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:04:35,518 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 14:04:35,518 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:04:35,518 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:04:35,518 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:04:35,519 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:04:35,519 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:04:35,519 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:04:35,519 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:04:35,519 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:04:35,519 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:04:35,519 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:04:35,520 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:04:35,520 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:04:35,520 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:04:35,520 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:04:35,520 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:04:35,520 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:04:35,520 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:04:35,521 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:04:35,521 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:04:35,521 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:04:35,521 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:04:35,521 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:04:35,521 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:04:35,521 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 14:04:35,522 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:04:35,522 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:04:35,522 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_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4632d05eeeec8083fb0c38c2d70eb822a2624ecb [2018-11-18 14:04:35,547 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:04:35,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:04:35,560 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:04:35,561 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:04:35,561 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:04:35,562 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1210_false-unreach-call.c [2018-11-18 14:04:35,608 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/data/a21f61e19/397f6921b9b24de59b4d1736a850ab36/FLAG8d4f08edc [2018-11-18 14:04:35,949 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:04:35,949 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/sv-benchmarks/c/float-newlib/double_req_bl_1210_false-unreach-call.c [2018-11-18 14:04:35,954 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/data/a21f61e19/397f6921b9b24de59b4d1736a850ab36/FLAG8d4f08edc [2018-11-18 14:04:36,376 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/data/a21f61e19/397f6921b9b24de59b4d1736a850ab36 [2018-11-18 14:04:36,381 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:04:36,383 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 14:04:36,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:04:36,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:04:36,388 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:04:36,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:04:36" (1/1) ... [2018-11-18 14:04:36,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5afb105e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:36, skipping insertion in model container [2018-11-18 14:04:36,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:04:36" (1/1) ... [2018-11-18 14:04:36,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:04:36,417 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:04:36,540 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:04:36,546 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:04:36,567 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:04:36,576 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:04:36,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:36 WrapperNode [2018-11-18 14:04:36,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:04:36,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:04:36,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:04:36,577 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:04:36,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:36" (1/1) ... [2018-11-18 14:04:36,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:36" (1/1) ... [2018-11-18 14:04:36,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:36" (1/1) ... [2018-11-18 14:04:36,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:36" (1/1) ... [2018-11-18 14:04:36,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:36" (1/1) ... [2018-11-18 14:04:36,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:36" (1/1) ... [2018-11-18 14:04:36,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:36" (1/1) ... [2018-11-18 14:04:36,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:04:36,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:04:36,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:04:36,657 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:04:36,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/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 [2018-11-18 14:04:36,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:04:36,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:04:36,695 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-18 14:04:36,695 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_double [2018-11-18 14:04:36,695 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:04:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 14:04:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-18 14:04:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure modf_double [2018-11-18 14:04:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:04:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 14:04:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 14:04:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:04:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 14:04:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 14:04:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:04:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:04:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:04:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 14:04:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 14:04:36,996 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:04:36,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:04:36 BoogieIcfgContainer [2018-11-18 14:04:36,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:04:36,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:04:36,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:04:37,001 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:04:37,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:04:36" (1/3) ... [2018-11-18 14:04:37,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b97e5fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:04:37, skipping insertion in model container [2018-11-18 14:04:37,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:36" (2/3) ... [2018-11-18 14:04:37,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b97e5fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:04:37, skipping insertion in model container [2018-11-18 14:04:37,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:04:36" (3/3) ... [2018-11-18 14:04:37,004 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210_false-unreach-call.c [2018-11-18 14:04:37,012 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:04:37,019 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:04:37,028 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:04:37,049 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:04:37,050 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:04:37,050 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:04:37,050 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:04:37,050 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:04:37,050 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:04:37,050 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:04:37,051 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:04:37,051 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:04:37,064 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-11-18 14:04:37,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 14:04:37,069 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:04:37,070 INFO L375 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] [2018-11-18 14:04:37,072 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:04:37,076 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:04:37,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1203880741, now seen corresponding path program 1 times [2018-11-18 14:04:37,077 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:04:37,078 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:04:37,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:37,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:04:37,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:37,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:04:37,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:04:37,175 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:04:37,175 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:04:37,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:04:37,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:04:37,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:04:37,188 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2018-11-18 14:04:37,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:04:37,207 INFO L93 Difference]: Finished difference Result 108 states and 162 transitions. [2018-11-18 14:04:37,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:04:37,208 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-11-18 14:04:37,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:04:37,214 INFO L225 Difference]: With dead ends: 108 [2018-11-18 14:04:37,215 INFO L226 Difference]: Without dead ends: 54 [2018-11-18 14:04:37,217 INFO L604 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 [2018-11-18 14:04:37,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-18 14:04:37,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-11-18 14:04:37,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-18 14:04:37,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2018-11-18 14:04:37,245 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 25 [2018-11-18 14:04:37,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:04:37,246 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2018-11-18 14:04:37,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:04:37,246 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2018-11-18 14:04:37,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 14:04:37,248 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:04:37,248 INFO L375 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] [2018-11-18 14:04:37,248 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:04:37,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:04:37,248 INFO L82 PathProgramCache]: Analyzing trace with hash 322549841, now seen corresponding path program 1 times [2018-11-18 14:04:37,248 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:04:37,248 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:04:37,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:37,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:04:37,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:04:37,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:04:37,310 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:04:37,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:04:37,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:04:37,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:04:37,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:04:37,312 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 3 states. [2018-11-18 14:04:37,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:04:37,326 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2018-11-18 14:04:37,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:04:37,326 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2018-11-18 14:04:37,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:04:37,327 INFO L225 Difference]: With dead ends: 57 [2018-11-18 14:04:37,327 INFO L226 Difference]: Without dead ends: 54 [2018-11-18 14:04:37,328 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:04:37,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-18 14:04:37,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-11-18 14:04:37,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-18 14:04:37,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2018-11-18 14:04:37,334 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 27 [2018-11-18 14:04:37,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:04:37,335 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2018-11-18 14:04:37,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:04:37,336 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2018-11-18 14:04:37,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 14:04:37,336 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:04:37,337 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:04:37,337 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:04:37,337 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:04:37,337 INFO L82 PathProgramCache]: Analyzing trace with hash -245566080, now seen corresponding path program 1 times [2018-11-18 14:04:37,337 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:04:37,337 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:04:37,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:37,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:04:37,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:04:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:04:37,403 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 14:04:37,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:04:37 BoogieIcfgContainer [2018-11-18 14:04:37,431 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:04:37,432 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:04:37,432 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:04:37,432 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:04:37,433 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:04:36" (3/4) ... [2018-11-18 14:04:37,437 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 14:04:37,437 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:04:37,438 INFO L168 Benchmark]: Toolchain (without parser) took 1056.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 960.8 MB in the beginning and 1.1 GB in the end (delta: -117.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-11-18 14:04:37,439 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:04:37,439 INFO L168 Benchmark]: CACSL2BoogieTranslator took 193.09 ms. Allocated memory is still 1.0 GB. Free memory was 960.8 MB in the beginning and 944.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:04:37,439 INFO L168 Benchmark]: Boogie Preprocessor took 79.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -199.5 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:04:37,440 INFO L168 Benchmark]: RCFGBuilder took 340.18 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:04:37,440 INFO L168 Benchmark]: TraceAbstraction took 434.34 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:04:37,441 INFO L168 Benchmark]: Witness Printer took 5.16 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. [2018-11-18 14:04:37,443 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 193.09 ms. Allocated memory is still 1.0 GB. Free memory was 960.8 MB in the beginning and 944.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 79.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -199.5 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 340.18 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 434.34 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 116, overapproximation of bitwiseAnd at line 33. Possible FailurePath: [L17] static const double one_modf = 1.0; VAL [\old(one_modf)=6442450949, one_modf=1] [L116] double x = 0.0 / 0.0; [L117] FCALL double iptr; VAL [iptr={6442450953:0}, one_modf=1] [L118] CALL, EXPR modf_double(x, &iptr) VAL [\old(x)=6442450951, iptr={6442450953:0}, one_modf=1] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [\old(x)=6442450951, iptr={6442450953:0}, iptr={6442450953:0}, one_modf=1, x=6442450951] [L23] FCALL ieee_double_shape_type ew_u; [L24] FCALL ew_u.value = (x) [L25] EXPR, FCALL ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR, FCALL ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L27] COND FALSE !(0) VAL [\old(x)=6442450951, i0=-2147483648, i1=3, iptr={6442450953:0}, iptr={6442450953:0}, one_modf=1, x=6442450951] [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=6442450951, i0=-2147483648, i1=3, iptr={6442450953:0}, iptr={6442450953:0}, one_modf=1, x=6442450951] [L29] COND TRUE j0 < 20 VAL [\old(x)=6442450951, i0=-2147483648, i1=3, iptr={6442450953:0}, iptr={6442450953:0}, j0=-1, one_modf=1, x=6442450951] [L30] COND TRUE j0 < 0 VAL [\old(x)=6442450951, i0=-2147483648, i1=3, iptr={6442450953:0}, iptr={6442450953:0}, j0=-1, one_modf=1, x=6442450951] [L32] FCALL ieee_double_shape_type iw_u; [L33] FCALL iw_u.parts.msw = (i0 & 0x80000000) [L34] FCALL iw_u.parts.lsw = (0) [L35] EXPR, FCALL iw_u.value [L35] FCALL (*iptr) = iw_u.value [L36] COND FALSE !(0) VAL [\old(x)=6442450951, i0=-2147483648, i1=3, iptr={6442450953:0}, iptr={6442450953:0}, j0=-1, one_modf=1, x=6442450951] [L37] RET return x; VAL [\old(x)=6442450951, \result=6442450951, i0=-2147483648, i1=3, iptr={6442450953:0}, iptr={6442450953:0}, j0=-1, one_modf=1, x=6442450951] [L118] EXPR modf_double(x, &iptr) VAL [iptr={6442450953:0}, modf_double(x, &iptr)=6442450951, one_modf=1, x=6442450951] [L118] double res = modf_double(x, &iptr); [L121] EXPR, FCALL \read(iptr) VAL [\read(iptr)=6442450954, iptr={6442450953:0}, one_modf=1, res=6442450951, x=6442450951] [L121] CALL, EXPR isnan_double(iptr) VAL [\old(x)=6442450954, one_modf=1] [L15] RET return x != x; VAL [\old(x)=6442450954, \result=1, one_modf=1, x=6442450954] [L121] EXPR isnan_double(iptr) VAL [\read(iptr)=6442450954, iptr={6442450953:0}, isnan_double(iptr)=1, one_modf=1, res=6442450951, x=6442450951] [L121] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=6442450954, iptr={6442450953:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, one_modf=1, res=6442450951, x=6442450951] [L121] CALL, EXPR isnan_double(res) VAL [\old(x)=6442450951, one_modf=1] [L15] RET return x != x; VAL [\old(x)=6442450951, \result=0, one_modf=1, x=6442450951] [L121] EXPR isnan_double(res) VAL [\read(iptr)=6442450954, iptr={6442450953:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1, res=6442450951, x=6442450951] [L121] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=6442450954, iptr={6442450953:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1, res=6442450951, x=6442450951] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [iptr={6442450953:0}, one_modf=1, res=6442450951, x=6442450951] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 58 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 124 SDtfs, 0 SDslu, 55 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 1278 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 0.1.23-5842f4b [2018-11-18 14:04:38,918 INFO L170 SettingsManager]: Resetting all preferences to default values... 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[2018-11-18 14:04:38,944 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:04:38,945 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:04:38,945 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:04:38,946 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:04:38,947 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:04:38,947 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:04:38,949 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:04:38,949 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:04:38,950 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:04:38,950 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:04:38,950 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:04:38,950 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:04:38,951 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:04:38,951 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 14:04:38,962 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:04:38,962 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:04:38,963 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:04:38,963 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 14:04:38,963 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:04:38,964 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:04:38,964 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:04:38,964 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:04:38,964 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:04:38,964 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:04:38,964 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:04:38,964 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:04:38,964 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:04:38,965 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:04:38,965 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 14:04:38,965 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 14:04:38,965 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:04:38,965 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:04:38,965 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:04:38,965 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:04:38,965 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:04:38,965 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:04:38,966 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:04:38,966 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:04:38,966 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:04:38,966 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:04:38,966 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:04:38,966 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:04:38,966 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 14:04:38,966 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:04:38,966 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 14:04:38,966 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 14:04:38,966 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_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4632d05eeeec8083fb0c38c2d70eb822a2624ecb [2018-11-18 14:04:38,999 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:04:39,008 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:04:39,011 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:04:39,012 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:04:39,013 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:04:39,013 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1210_false-unreach-call.c [2018-11-18 14:04:39,061 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/data/0d7d95718/68d1d51144be4e0a9be65f60bb36308f/FLAGf55ca8700 [2018-11-18 14:04:39,389 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:04:39,390 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/sv-benchmarks/c/float-newlib/double_req_bl_1210_false-unreach-call.c [2018-11-18 14:04:39,395 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/data/0d7d95718/68d1d51144be4e0a9be65f60bb36308f/FLAGf55ca8700 [2018-11-18 14:04:39,403 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/data/0d7d95718/68d1d51144be4e0a9be65f60bb36308f [2018-11-18 14:04:39,406 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:04:39,406 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 14:04:39,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:04:39,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:04:39,410 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:04:39,411 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:04:39" (1/1) ... [2018-11-18 14:04:39,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@401a7ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:39, skipping insertion in model container [2018-11-18 14:04:39,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:04:39" (1/1) ... [2018-11-18 14:04:39,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:04:39,441 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:04:39,579 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:04:39,592 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:04:39,617 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:04:39,629 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:04:39,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:39 WrapperNode [2018-11-18 14:04:39,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:04:39,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:04:39,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:04:39,631 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:04:39,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:39" (1/1) ... [2018-11-18 14:04:39,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:39" (1/1) ... [2018-11-18 14:04:39,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:39" (1/1) ... [2018-11-18 14:04:39,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:39" (1/1) ... [2018-11-18 14:04:39,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:39" (1/1) ... [2018-11-18 14:04:39,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:39" (1/1) ... [2018-11-18 14:04:39,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:39" (1/1) ... [2018-11-18 14:04:39,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:04:39,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:04:39,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:04:39,728 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:04:39,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/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 [2018-11-18 14:04:39,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:04:39,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:04:39,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-18 14:04:39,770 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_double [2018-11-18 14:04:39,770 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:04:39,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 14:04:39,770 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-18 14:04:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure modf_double [2018-11-18 14:04:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:04:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 14:04:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 14:04:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:04:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 14:04:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 14:04:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:04:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:04:39,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:04:39,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 14:04:39,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-11-18 14:04:39,947 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:04:39,958 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:04:39,995 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:04:40,024 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:04:40,040 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:04:40,109 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:04:40,120 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:04:40,148 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:04:40,587 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:04:40,600 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:04:40,611 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:04:40,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:04:40 BoogieIcfgContainer [2018-11-18 14:04:40,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:04:40,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:04:40,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:04:40,614 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:04:40,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:04:39" (1/3) ... [2018-11-18 14:04:40,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c59b430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:04:40, skipping insertion in model container [2018-11-18 14:04:40,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:39" (2/3) ... [2018-11-18 14:04:40,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c59b430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:04:40, skipping insertion in model container [2018-11-18 14:04:40,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:04:40" (3/3) ... [2018-11-18 14:04:40,617 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210_false-unreach-call.c [2018-11-18 14:04:40,623 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:04:40,628 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:04:40,638 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:04:40,658 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:04:40,658 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:04:40,658 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:04:40,659 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:04:40,659 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:04:40,659 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:04:40,659 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:04:40,659 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:04:40,659 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:04:40,669 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-11-18 14:04:40,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 14:04:40,674 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:04:40,675 INFO L375 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] [2018-11-18 14:04:40,677 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:04:40,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:04:40,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1203880741, now seen corresponding path program 1 times [2018-11-18 14:04:40,683 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:04:40,683 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/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 [2018-11-18 14:04:40,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:04:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:04:40,746 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:04:40,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:04:40,759 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:04:40,771 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:04:40,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:04:40,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:04:40,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:04:40,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:04:40,783 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2018-11-18 14:04:40,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:04:40,801 INFO L93 Difference]: Finished difference Result 108 states and 162 transitions. [2018-11-18 14:04:40,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:04:40,802 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-11-18 14:04:40,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:04:40,809 INFO L225 Difference]: With dead ends: 108 [2018-11-18 14:04:40,809 INFO L226 Difference]: Without dead ends: 54 [2018-11-18 14:04:40,811 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:04:40,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-18 14:04:40,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-11-18 14:04:40,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-18 14:04:40,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2018-11-18 14:04:40,842 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 25 [2018-11-18 14:04:40,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:04:40,842 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2018-11-18 14:04:40,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:04:40,842 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2018-11-18 14:04:40,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 14:04:40,844 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:04:40,844 INFO L375 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] [2018-11-18 14:04:40,845 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:04:40,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:04:40,845 INFO L82 PathProgramCache]: Analyzing trace with hash 322549841, now seen corresponding path program 1 times [2018-11-18 14:04:40,846 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:04:40,846 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/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 [2018-11-18 14:04:40,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:04:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:04:40,908 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:04:41,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:04:41,046 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:04:41,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:04:41,059 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:04:41,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:04:41,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:04:41,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:04:41,061 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 7 states. [2018-11-18 14:04:43,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:04:43,258 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2018-11-18 14:04:43,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:04:43,260 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-11-18 14:04:43,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:04:43,261 INFO L225 Difference]: With dead ends: 72 [2018-11-18 14:04:43,261 INFO L226 Difference]: Without dead ends: 43 [2018-11-18 14:04:43,262 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-18 14:04:43,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-18 14:04:43,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2018-11-18 14:04:43,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 14:04:43,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2018-11-18 14:04:43,267 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 27 [2018-11-18 14:04:43,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:04:43,268 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2018-11-18 14:04:43,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:04:43,268 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2018-11-18 14:04:43,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 14:04:43,269 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:04:43,269 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:04:43,269 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:04:43,269 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:04:43,270 INFO L82 PathProgramCache]: Analyzing trace with hash 707088037, now seen corresponding path program 1 times [2018-11-18 14:04:43,270 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:04:43,270 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/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 [2018-11-18 14:04:43,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:04:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:04:43,401 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:04:43,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:04:43,417 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:04:43,430 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:04:43,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:04:43,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:04:43,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:04:43,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:04:43,431 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 3 states. [2018-11-18 14:04:43,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:04:43,441 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-11-18 14:04:43,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:04:43,442 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-11-18 14:04:43,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:04:43,443 INFO L225 Difference]: With dead ends: 44 [2018-11-18 14:04:43,443 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 14:04:43,443 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:04:43,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 14:04:43,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-18 14:04:43,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 14:04:43,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-11-18 14:04:43,451 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 28 [2018-11-18 14:04:43,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:04:43,453 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-11-18 14:04:43,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:04:43,453 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-11-18 14:04:43,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-18 14:04:43,454 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:04:43,454 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:04:43,454 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:04:43,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:04:43,455 INFO L82 PathProgramCache]: Analyzing trace with hash -74042452, now seen corresponding path program 1 times [2018-11-18 14:04:43,455 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:04:43,455 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/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 [2018-11-18 14:04:43,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:04:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:04:43,597 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:04:43,768 INFO L303 Elim1Store]: Index analysis took 146 ms [2018-11-18 14:04:43,771 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2018-11-18 14:04:43,947 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:43,971 INFO L303 Elim1Store]: Index analysis took 198 ms [2018-11-18 14:04:43,972 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 25 [2018-11-18 14:04:43,973 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 14:04:44,341 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 14:04:44,436 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 14:04:44,436 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:48, output treesize:18 [2018-11-18 14:04:48,374 WARN L180 SmtUtils]: Spent 2.07 s on a formula simplification that was a NOOP. DAG size: 13 [2018-11-18 14:04:54,987 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 14:04:54,987 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:04:55,000 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:04:55,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 14:04:55,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 14:04:55,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 14:04:55,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:04:55,001 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 10 states. [2018-11-18 14:05:03,199 WARN L180 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-11-18 14:05:23,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:05:23,367 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-11-18 14:05:23,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 14:05:23,367 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2018-11-18 14:05:23,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:05:23,368 INFO L225 Difference]: With dead ends: 52 [2018-11-18 14:05:23,368 INFO L226 Difference]: Without dead ends: 38 [2018-11-18 14:05:23,369 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=43, Invalid=164, Unknown=3, NotChecked=0, Total=210 [2018-11-18 14:05:23,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-18 14:05:23,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-18 14:05:23,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 14:05:23,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2018-11-18 14:05:23,373 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 33 [2018-11-18 14:05:23,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:05:23,373 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2018-11-18 14:05:23,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 14:05:23,373 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2018-11-18 14:05:23,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 14:05:23,374 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:05:23,374 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:05:23,374 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:05:23,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:05:23,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1954172473, now seen corresponding path program 1 times [2018-11-18 14:05:23,375 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:05:23,375 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/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 [2018-11-18 14:05:23,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:05:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:05:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:05:24,143 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 14:05:24,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:05:24 BoogieIcfgContainer [2018-11-18 14:05:24,171 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:05:24,171 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:05:24,171 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:05:24,172 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:05:24,172 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:04:40" (3/4) ... [2018-11-18 14:05:24,173 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 14:05:24,215 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_538f1e68-041d-4a16-89e2-d10afc910f36/bin-2019/uautomizer/witness.graphml [2018-11-18 14:05:24,215 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:05:24,216 INFO L168 Benchmark]: Toolchain (without parser) took 44809.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 950.8 MB in the beginning and 930.6 MB in the end (delta: 20.3 MB). Peak memory consumption was 176.5 MB. Max. memory is 11.5 GB. [2018-11-18 14:05:24,217 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:05:24,217 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.00 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 933.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:05:24,217 INFO L168 Benchmark]: Boogie Preprocessor took 97.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 933.6 MB in the beginning and 1.2 GB in the end (delta: -216.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:05:24,218 INFO L168 Benchmark]: RCFGBuilder took 883.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:05:24,218 INFO L168 Benchmark]: TraceAbstraction took 43559.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 930.6 MB in the end (delta: 171.8 MB). Peak memory consumption was 171.8 MB. Max. memory is 11.5 GB. [2018-11-18 14:05:24,218 INFO L168 Benchmark]: Witness Printer took 43.95 ms. Allocated memory is still 1.2 GB. Free memory is still 930.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:05:24,219 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 223.00 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 933.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 97.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 933.6 MB in the beginning and 1.2 GB in the end (delta: -216.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 883.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 43559.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 930.6 MB in the end (delta: 171.8 MB). Peak memory consumption was 171.8 MB. Max. memory is 11.5 GB. * Witness Printer took 43.95 ms. Allocated memory is still 1.2 GB. Free memory is still 930.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 122]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] static const double one_modf = 1.0; VAL [\old(one_modf)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000025, one_modf=1.0] [L116] double x = 0.0 / 0.0; [L117] FCALL double iptr; VAL [iptr={2:0}, one_modf=1.0, x=NaN] [L118] CALL, EXPR modf_double(x, &iptr) VAL [\old(x)=NaN, iptr={2:0}, one_modf=1.0] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [\old(x)=NaN, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [L23] FCALL ieee_double_shape_type ew_u; [L24] FCALL ew_u.value = (x) [L25] EXPR, FCALL ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR, FCALL ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L27] COND FALSE !(0) VAL [\old(x)=NaN, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=NaN, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L29] COND FALSE !(j0 < 20) VAL [\old(x)=NaN, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L65] COND TRUE j0 > 51 [L66] __uint32_t high; [L67] FCALL *iptr = x * one_modf VAL [\old(x)=NaN, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L69] FCALL ieee_double_shape_type gh_u; [L70] FCALL gh_u.value = (x) [L71] EXPR, FCALL gh_u.parts.msw [L71] (high) = gh_u.parts.msw [L72] COND FALSE !(0) VAL [\old(x)=NaN, high=2146959360, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L74] FCALL ieee_double_shape_type iw_u; [L75] FCALL iw_u.parts.msw = (high & 0x80000000) [L76] FCALL iw_u.parts.lsw = (0) [L77] EXPR, FCALL iw_u.value [L77] (x) = iw_u.value [L78] COND FALSE !(0) VAL [\old(x)=NaN, high=2146959360, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=0.0] [L79] RET return x; VAL [\old(x)=NaN, \result=0.0, high=2146959360, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=0.0] [L118] EXPR modf_double(x, &iptr) VAL [iptr={2:0}, modf_double(x, &iptr)=0.0, one_modf=1.0, x=NaN] [L118] double res = modf_double(x, &iptr); [L121] EXPR, FCALL \read(iptr) VAL [\read(iptr)=NaN, iptr={2:0}, one_modf=1.0, res=0.0, x=NaN] [L121] CALL, EXPR isnan_double(iptr) VAL [\old(x)=NaN, one_modf=1.0] [L15] RET return x != x; VAL [\old(x)=NaN, \result=1, one_modf=1.0, x=NaN] [L121] EXPR isnan_double(iptr) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_double(iptr)=1, one_modf=1.0, res=0.0, x=NaN] [L121] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, one_modf=1.0, res=0.0, x=NaN] [L121] CALL, EXPR isnan_double(res) VAL [\old(x)=0.0, one_modf=1.0] [L15] RET return x != x; VAL [\old(x)=0.0, \result=0, one_modf=1.0, x=0.0] [L121] EXPR isnan_double(res) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1.0, res=0.0, x=NaN] [L121] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1.0, res=0.0, x=NaN] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [iptr={2:0}, one_modf=1.0, res=0.0, x=NaN] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 58 locations, 1 error locations. UNSAFE Result, 43.5s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 30.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 179 SDtfs, 142 SDslu, 386 SDs, 0 SdLazy, 181 SolverSat, 4 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 22.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 119 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 18.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 109 ConstructedInterpolants, 16 QuantifiedInterpolants, 14078 SizeOfPredicates, 12 NumberOfNonLiveVariables, 324 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...