./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/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 84dba58cac25505e0eb3c404a47a071a268de901 .......................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/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 84dba58cac25505e0eb3c404a47a071a268de901 .............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 11:37:30,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:37:30,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:37:30,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:37:30,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:37:30,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:37:30,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:37:30,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:37:30,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:37:30,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:37:30,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:37:30,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:37:30,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:37:30,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:37:30,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:37:30,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:37:30,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:37:30,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:37:30,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:37:30,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:37:30,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:37:30,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:37:30,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:37:30,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:37:30,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:37:30,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:37:30,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:37:30,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:37:30,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:37:30,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:37:30,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:37:30,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:37:30,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:37:30,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:37:30,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:37:30,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:37:30,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:37:30,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:37:30,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:37:30,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:37:30,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:37:30,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 11:37:30,484 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:37:30,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:37:30,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:37:30,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:37:30,486 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:37:30,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:37:30,486 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 11:37:30,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 11:37:30,487 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 11:37:30,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:37:30,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 11:37:30,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 11:37:30,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 11:37:30,488 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 11:37:30,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 11:37:30,489 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:37:30,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 11:37:30,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:37:30,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:37:30,489 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 11:37:30,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 11:37:30,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:37:30,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:37:30,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 11:37:30,490 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 11:37:30,490 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 11:37:30,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 11:37:30,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 11:37:30,491 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/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 -> 84dba58cac25505e0eb3c404a47a071a268de901 [2019-11-20 11:37:30,677 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:37:30,689 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:37:30,694 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:37:30,696 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:37:30,696 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:37:30,697 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2019-11-20 11:37:30,770 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/uautomizer/data/eb350b45b/e7a8137b4a2743e2aaba9fb55d0567a7/FLAG540d2b47d [2019-11-20 11:37:31,287 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:37:31,289 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2019-11-20 11:37:31,299 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/uautomizer/data/eb350b45b/e7a8137b4a2743e2aaba9fb55d0567a7/FLAG540d2b47d [2019-11-20 11:37:31,624 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/uautomizer/data/eb350b45b/e7a8137b4a2743e2aaba9fb55d0567a7 [2019-11-20 11:37:31,627 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:37:31,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 11:37:31,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:37:31,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:37:31,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:37:31,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:37:31" (1/1) ... [2019-11-20 11:37:31,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e5dd1ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:31, skipping insertion in model container [2019-11-20 11:37:31,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:37:31" (1/1) ... [2019-11-20 11:37:31,644 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:37:31,665 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:37:32,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:37:32,011 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:37:32,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:37:32,078 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:37:32,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:32 WrapperNode [2019-11-20 11:37:32,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:37:32,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 11:37:32,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 11:37:32,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 11:37:32,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:32" (1/1) ... [2019-11-20 11:37:32,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:32" (1/1) ... [2019-11-20 11:37:32,124 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 11:37:32,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:37:32,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:37:32,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:37:32,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:32" (1/1) ... [2019-11-20 11:37:32,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:32" (1/1) ... [2019-11-20 11:37:32,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:32" (1/1) ... [2019-11-20 11:37:32,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:32" (1/1) ... [2019-11-20 11:37:32,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:32" (1/1) ... [2019-11-20 11:37:32,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:32" (1/1) ... [2019-11-20 11:37:32,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:32" (1/1) ... [2019-11-20 11:37:32,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:37:32,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:37:32,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:37:32,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:37:32,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/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 [2019-11-20 11:37:32,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 11:37:32,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 11:37:32,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 11:37:32,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:37:32,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:37:32,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 11:37:32,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 11:37:32,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 11:37:32,663 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:37:32,664 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-20 11:37:32,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:37:32 BoogieIcfgContainer [2019-11-20 11:37:32,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:37:32,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 11:37:32,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 11:37:32,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 11:37:32,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:37:31" (1/3) ... [2019-11-20 11:37:32,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3d908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:37:32, skipping insertion in model container [2019-11-20 11:37:32,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:32" (2/3) ... [2019-11-20 11:37:32,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3d908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:37:32, skipping insertion in model container [2019-11-20 11:37:32,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:37:32" (3/3) ... [2019-11-20 11:37:32,673 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2019-11-20 11:37:32,692 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 11:37:32,699 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 11:37:32,712 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 11:37:32,763 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 11:37:32,763 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 11:37:32,763 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 11:37:32,763 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:37:32,763 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:37:32,764 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 11:37:32,764 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:37:32,764 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 11:37:32,779 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-11-20 11:37:32,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 11:37:32,785 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:37:32,786 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:37:32,787 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:37:32,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:37:32,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2019-11-20 11:37:32,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:37:32,800 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931534837] [2019-11-20 11:37:32,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:37:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:37:32,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:32,906 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931534837] [2019-11-20 11:37:32,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:37:32,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 11:37:32,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162797046] [2019-11-20 11:37:32,912 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 11:37:32,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:37:32,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 11:37:32,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 11:37:32,930 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-11-20 11:37:32,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:37:32,950 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2019-11-20 11:37:32,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 11:37:32,952 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-20 11:37:32,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:37:32,962 INFO L225 Difference]: With dead ends: 66 [2019-11-20 11:37:32,962 INFO L226 Difference]: Without dead ends: 31 [2019-11-20 11:37:32,965 INFO L630 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 [2019-11-20 11:37:32,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-20 11:37:32,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-20 11:37:32,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-20 11:37:33,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2019-11-20 11:37:33,001 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2019-11-20 11:37:33,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:37:33,002 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2019-11-20 11:37:33,002 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 11:37:33,002 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2019-11-20 11:37:33,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 11:37:33,003 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:37:33,003 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:37:33,004 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:37:33,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:37:33,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2019-11-20 11:37:33,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:37:33,005 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514431594] [2019-11-20 11:37:33,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:37:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:37:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:37:33,138 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:37:33,139 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 11:37:33,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:37:33 BoogieIcfgContainer [2019-11-20 11:37:33,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 11:37:33,174 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:37:33,174 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:37:33,174 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:37:33,175 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:37:32" (3/4) ... [2019-11-20 11:37:33,178 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 11:37:33,178 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:37:33,181 INFO L168 Benchmark]: Toolchain (without parser) took 1552.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -111.0 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2019-11-20 11:37:33,182 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:37:33,182 INFO L168 Benchmark]: CACSL2BoogieTranslator took 451.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -170.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-20 11:37:33,183 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.04 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. [2019-11-20 11:37:33,184 INFO L168 Benchmark]: Boogie Preprocessor took 45.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-20 11:37:33,184 INFO L168 Benchmark]: RCFGBuilder took 495.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-11-20 11:37:33,185 INFO L168 Benchmark]: TraceAbstraction took 507.38 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: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. [2019-11-20 11:37:33,186 INFO L168 Benchmark]: Witness Printer took 4.41 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. [2019-11-20 11:37:33,189 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 451.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -170.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.04 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. * Boogie Preprocessor took 45.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 495.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 507.38 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: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.41 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: 95]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 41, overapproximation of bitwiseOr at line 42, overapproximation of someBinaryArithmeticDOUBLEoperation at line 90, overapproximation of bitwiseAnd at line 28, overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L17] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L90] double x = 0.0 / 0.0; [L20] __int32_t i0, i1, j0; [L21] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L30] COND FALSE !(j0 < 0) [L41] i = (0x000fffff) >> j0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L42] COND TRUE ((i0 & i) | i1) == 0 [L43] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] double res = ceil_double(x); [L15] return x != x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L94] COND TRUE !isnan_double(res) [L95] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.24-678e011 [2019-11-20 11:37:35,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:37:35,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:37:35,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:37:35,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:37:35,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:37:35,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:37:35,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:37:35,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:37:35,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:37:35,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:37:35,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:37:35,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:37:35,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:37:35,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:37:35,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:37:35,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:37:35,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:37:35,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:37:35,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:37:35,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:37:35,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:37:35,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:37:35,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:37:35,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:37:35,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:37:35,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:37:35,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:37:35,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:37:35,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:37:35,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:37:35,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:37:35,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:37:35,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:37:35,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:37:35,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:37:35,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:37:35,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:37:35,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:37:35,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:37:35,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:37:35,494 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 11:37:35,522 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:37:35,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:37:35,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:37:35,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:37:35,526 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:37:35,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:37:35,526 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 11:37:35,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 11:37:35,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:37:35,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 11:37:35,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 11:37:35,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 11:37:35,529 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 11:37:35,530 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 11:37:35,530 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 11:37:35,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 11:37:35,531 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:37:35,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 11:37:35,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:37:35,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:37:35,534 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 11:37:35,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 11:37:35,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:37:35,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:37:35,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 11:37:35,535 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 11:37:35,535 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 11:37:35,536 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 11:37:35,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 11:37:35,536 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 11:37:35,537 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/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 -> 84dba58cac25505e0eb3c404a47a071a268de901 [2019-11-20 11:37:35,932 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:37:35,950 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:37:35,955 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:37:35,957 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:37:35,957 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:37:35,959 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2019-11-20 11:37:36,032 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/uautomizer/data/2dddc5268/bfe53f375e674770bcd5c7ad379e5cb8/FLAGe8cb5a339 [2019-11-20 11:37:36,559 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:37:36,560 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2019-11-20 11:37:36,569 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/uautomizer/data/2dddc5268/bfe53f375e674770bcd5c7ad379e5cb8/FLAGe8cb5a339 [2019-11-20 11:37:36,855 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/uautomizer/data/2dddc5268/bfe53f375e674770bcd5c7ad379e5cb8 [2019-11-20 11:37:36,858 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:37:36,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 11:37:36,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:37:36,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:37:36,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:37:36,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:37:36" (1/1) ... [2019-11-20 11:37:36,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e350cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:36, skipping insertion in model container [2019-11-20 11:37:36,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:37:36" (1/1) ... [2019-11-20 11:37:36,882 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:37:36,914 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:37:37,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:37:37,149 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:37:37,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:37:37,235 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:37:37,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:37 WrapperNode [2019-11-20 11:37:37,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:37:37,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 11:37:37,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 11:37:37,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 11:37:37,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:37" (1/1) ... [2019-11-20 11:37:37,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:37" (1/1) ... [2019-11-20 11:37:37,353 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 11:37:37,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:37:37,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:37:37,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:37:37,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:37" (1/1) ... [2019-11-20 11:37:37,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:37" (1/1) ... [2019-11-20 11:37:37,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:37" (1/1) ... [2019-11-20 11:37:37,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:37" (1/1) ... [2019-11-20 11:37:37,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:37" (1/1) ... [2019-11-20 11:37:37,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:37" (1/1) ... [2019-11-20 11:37:37,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:37" (1/1) ... [2019-11-20 11:37:37,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:37:37,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:37:37,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:37:37,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:37:37,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/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 [2019-11-20 11:37:37,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-20 11:37:37,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 11:37:37,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-20 11:37:37,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:37:37,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:37:37,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 11:37:37,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 11:37:37,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 11:37:38,874 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:37:38,874 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-20 11:37:38,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:37:38 BoogieIcfgContainer [2019-11-20 11:37:38,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:37:38,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 11:37:38,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 11:37:38,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 11:37:38,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:37:36" (1/3) ... [2019-11-20 11:37:38,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecd08d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:37:38, skipping insertion in model container [2019-11-20 11:37:38,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:37" (2/3) ... [2019-11-20 11:37:38,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecd08d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:37:38, skipping insertion in model container [2019-11-20 11:37:38,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:37:38" (3/3) ... [2019-11-20 11:37:38,883 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2019-11-20 11:37:38,895 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 11:37:38,901 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 11:37:38,911 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 11:37:38,934 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 11:37:38,935 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 11:37:38,935 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 11:37:38,935 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:37:38,935 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:37:38,935 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 11:37:38,935 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:37:38,936 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 11:37:38,951 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-11-20 11:37:38,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 11:37:38,958 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:37:38,959 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:37:38,960 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:37:38,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:37:38,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2019-11-20 11:37:38,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:37:38,976 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1528279544] [2019-11-20 11:37:38,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/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 [2019-11-20 11:37:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:37:39,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 11:37:39,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:37:39,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:39,108 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:37:39,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:39,114 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1528279544] [2019-11-20 11:37:39,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:37:39,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 11:37:39,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94219753] [2019-11-20 11:37:39,121 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 11:37:39,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:37:39,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 11:37:39,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 11:37:39,139 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-11-20 11:37:39,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:37:39,161 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2019-11-20 11:37:39,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 11:37:39,163 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-20 11:37:39,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:37:39,175 INFO L225 Difference]: With dead ends: 66 [2019-11-20 11:37:39,175 INFO L226 Difference]: Without dead ends: 31 [2019-11-20 11:37:39,179 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 11:37:39,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-20 11:37:39,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-20 11:37:39,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-20 11:37:39,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2019-11-20 11:37:39,219 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2019-11-20 11:37:39,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:37:39,220 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2019-11-20 11:37:39,220 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 11:37:39,221 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2019-11-20 11:37:39,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 11:37:39,222 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:37:39,222 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:37:39,450 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 11:37:39,450 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:37:39,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:37:39,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2019-11-20 11:37:39,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:37:39,451 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053202274] [2019-11-20 11:37:39,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/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 [2019-11-20 11:37:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:37:39,555 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 11:37:39,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:37:39,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:39,648 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:37:39,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:39,720 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2053202274] [2019-11-20 11:37:39,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:37:39,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-20 11:37:39,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169064765] [2019-11-20 11:37:39,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 11:37:39,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:37:39,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 11:37:39,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-20 11:37:39,724 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand 8 states. [2019-11-20 11:37:40,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:37:40,464 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2019-11-20 11:37:40,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 11:37:40,466 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2019-11-20 11:37:40,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:37:40,467 INFO L225 Difference]: With dead ends: 42 [2019-11-20 11:37:40,467 INFO L226 Difference]: Without dead ends: 21 [2019-11-20 11:37:40,468 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-20 11:37:40,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-20 11:37:40,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-20 11:37:40,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-20 11:37:40,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-11-20 11:37:40,473 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2019-11-20 11:37:40,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:37:40,476 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-11-20 11:37:40,476 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 11:37:40,476 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-11-20 11:37:40,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 11:37:40,479 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:37:40,484 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:37:40,699 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 11:37:40,700 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:37:40,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:37:40,700 INFO L82 PathProgramCache]: Analyzing trace with hash -649399050, now seen corresponding path program 1 times [2019-11-20 11:37:40,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:37:40,701 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [978328950] [2019-11-20 11:37:40,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/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 [2019-11-20 11:37:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:37:40,908 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 11:37:40,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:37:40,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:40,995 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:37:41,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:41,142 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [978328950] [2019-11-20 11:37:41,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:37:41,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 11:37:41,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57197368] [2019-11-20 11:37:41,144 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 11:37:41,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:37:41,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 11:37:41,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-20 11:37:41,145 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2019-11-20 11:37:41,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:37:41,311 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-11-20 11:37:41,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:37:41,313 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-20 11:37:41,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:37:41,314 INFO L225 Difference]: With dead ends: 21 [2019-11-20 11:37:41,314 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 11:37:41,315 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-20 11:37:41,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 11:37:41,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 11:37:41,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 11:37:41,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 11:37:41,316 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-20 11:37:41,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:37:41,316 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:37:41,316 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 11:37:41,317 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 11:37:41,317 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 11:37:41,526 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 11:37:41,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 11:37:41,612 INFO L444 ceAbstractionStarter]: For program point L60(lines 60 72) no Hoare annotation was computed. [2019-11-20 11:37:41,612 INFO L444 ceAbstractionStarter]: For program point L52(lines 52 55) no Hoare annotation was computed. [2019-11-20 11:37:41,612 INFO L444 ceAbstractionStarter]: For program point L44(lines 44 49) no Hoare annotation was computed. [2019-11-20 11:37:41,612 INFO L444 ceAbstractionStarter]: For program point L94(lines 94 97) no Hoare annotation was computed. [2019-11-20 11:37:41,612 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 11:37:41,613 INFO L444 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2019-11-20 11:37:41,613 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 11:37:41,613 INFO L444 ceAbstractionStarter]: For program point L61-1(lines 61 70) no Hoare annotation was computed. [2019-11-20 11:37:41,613 INFO L444 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2019-11-20 11:37:41,613 INFO L444 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2019-11-20 11:37:41,613 INFO L444 ceAbstractionStarter]: For program point L95(line 95) no Hoare annotation was computed. [2019-11-20 11:37:41,614 INFO L444 ceAbstractionStarter]: For program point L62(lines 62 69) no Hoare annotation was computed. [2019-11-20 11:37:41,614 INFO L444 ceAbstractionStarter]: For program point L29(lines 29 73) no Hoare annotation was computed. [2019-11-20 11:37:41,614 INFO L444 ceAbstractionStarter]: For program point L30(lines 30 50) no Hoare annotation was computed. [2019-11-20 11:37:41,614 INFO L444 ceAbstractionStarter]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2019-11-20 11:37:41,614 INFO L440 ceAbstractionStarter]: At program point L22-2(lines 22 27) the Hoare annotation is: (= ULTIMATE.start_ceil_double_~x (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53))) [2019-11-20 11:37:41,615 INFO L444 ceAbstractionStarter]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2019-11-20 11:37:41,615 INFO L440 ceAbstractionStarter]: At program point L80(lines 19 81) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_ceil_double_~x .cse0) (= |ULTIMATE.start_ceil_double_#res| .cse0))) [2019-11-20 11:37:41,615 INFO L444 ceAbstractionStarter]: For program point L31(lines 31 39) no Hoare annotation was computed. [2019-11-20 11:37:41,615 INFO L440 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_ceil_double_~x .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) (= |ULTIMATE.start_ceil_double_#res| .cse0))) [2019-11-20 11:37:41,615 INFO L444 ceAbstractionStarter]: For program point L32(lines 32 38) no Hoare annotation was computed. [2019-11-20 11:37:41,616 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 11:37:41,616 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2019-11-20 11:37:41,616 INFO L444 ceAbstractionStarter]: For program point L74(lines 74 79) no Hoare annotation was computed. [2019-11-20 11:37:41,616 INFO L444 ceAbstractionStarter]: For program point L74-1(lines 19 81) no Hoare annotation was computed. [2019-11-20 11:37:41,616 INFO L444 ceAbstractionStarter]: For program point L74-2(lines 74 79) no Hoare annotation was computed. [2019-11-20 11:37:41,616 INFO L447 ceAbstractionStarter]: At program point L99(lines 83 100) the Hoare annotation is: true [2019-11-20 11:37:41,617 INFO L444 ceAbstractionStarter]: For program point L66(lines 66 67) no Hoare annotation was computed. [2019-11-20 11:37:41,617 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 11:37:41,617 INFO L444 ceAbstractionStarter]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2019-11-20 11:37:41,617 INFO L444 ceAbstractionStarter]: For program point L58(lines 58 59) no Hoare annotation was computed. [2019-11-20 11:37:41,617 INFO L444 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2019-11-20 11:37:41,617 INFO L444 ceAbstractionStarter]: For program point L51(lines 51 73) no Hoare annotation was computed. [2019-11-20 11:37:41,618 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 38) no Hoare annotation was computed. [2019-11-20 11:37:41,626 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:37:41,627 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:37:41,631 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:37:41,632 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:37:41,638 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:37:41,643 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:37:41,644 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:37:41,644 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:37:41,645 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:37:41,646 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:37:41,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:37:41 BoogieIcfgContainer [2019-11-20 11:37:41,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 11:37:41,650 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:37:41,650 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:37:41,651 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:37:41,651 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:37:38" (3/4) ... [2019-11-20 11:37:41,655 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 11:37:41,677 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-20 11:37:41,678 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 11:37:41,678 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 11:37:41,719 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-20 11:37:41,721 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-20 11:37:41,790 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f3b483c4-f3fd-4075-9c50-56df62f0947d/bin/uautomizer/witness.graphml [2019-11-20 11:37:41,791 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:37:41,793 INFO L168 Benchmark]: Toolchain (without parser) took 4932.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 963.1 MB in the beginning and 979.0 MB in the end (delta: -15.9 MB). Peak memory consumption was 109.4 MB. Max. memory is 11.5 GB. [2019-11-20 11:37:41,794 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:37:41,794 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.72 ms. Allocated memory is still 1.0 GB. Free memory was 963.1 MB in the beginning and 947.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-11-20 11:37:41,797 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -167.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-20 11:37:41,797 INFO L168 Benchmark]: Boogie Preprocessor took 40.99 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. [2019-11-20 11:37:41,798 INFO L168 Benchmark]: RCFGBuilder took 1480.49 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: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2019-11-20 11:37:41,798 INFO L168 Benchmark]: TraceAbstraction took 2773.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.7 MB in the end (delta: 97.3 MB). Peak memory consumption was 97.3 MB. Max. memory is 11.5 GB. [2019-11-20 11:37:41,799 INFO L168 Benchmark]: Witness Printer took 140.66 ms. Allocated memory is still 1.2 GB. Free memory was 985.7 MB in the beginning and 979.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:37:41,802 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 374.72 ms. Allocated memory is still 1.0 GB. Free memory was 963.1 MB in the beginning and 947.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 115.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -167.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1480.49 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: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2773.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.7 MB in the end (delta: 97.3 MB). Peak memory consumption was 97.3 MB. Max. memory is 11.5 GB. * Witness Printer took 140.66 ms. Allocated memory is still 1.2 GB. Free memory was 985.7 MB in the beginning and 979.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 95]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant [2019-11-20 11:37:41,817 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:37:41,817 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:37:41,818 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:37:41,818 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 19]: Loop Invariant [2019-11-20 11:37:41,819 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:37:41,819 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:37:41,820 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:37:41,820 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 83]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant [2019-11-20 11:37:41,822 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:37:41,822 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 68 SDtfs, 27 SDslu, 75 SDs, 0 SdLazy, 60 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 36 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 4 QuantifiedInterpolants, 3206 SizeOfPredicates, 14 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...