./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1121a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/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 2718f642e307f3f62e4f4b06b51ef37595256727 ...................................................................................................................................................................................................................................................................................................... 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_9bb581d1-c28d-46d7-9076-04dd82ff465b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/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 2718f642e307f3f62e4f4b06b51ef37595256727 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 21:12:01,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:12:01,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:12:01,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:12:01,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:12:01,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:12:01,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:12:01,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:12:01,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:12:01,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:12:01,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:12:01,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:12:01,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:12:01,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:12:01,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:12:01,894 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:12:01,895 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:12:01,896 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:12:01,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:12:01,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:12:01,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:12:01,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:12:01,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:12:01,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:12:01,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:12:01,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:12:01,908 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:12:01,909 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:12:01,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:12:01,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:12:01,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:12:01,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:12:01,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:12:01,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:12:01,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:12:01,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:12:01,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:12:01,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:12:01,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:12:01,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:12:01,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:12:01,920 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 21:12:01,935 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:12:01,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:12:01,936 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:12:01,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:12:01,937 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:12:01,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:12:01,938 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 21:12:01,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:12:01,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 21:12:01,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:12:01,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 21:12:01,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:12:01,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 21:12:01,940 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 21:12:01,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:12:01,940 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:12:01,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 21:12:01,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:12:01,941 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:12:01,941 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:12:01,942 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:12:01,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:12:01,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:12:01,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:12:01,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 21:12:01,943 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:12:01,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 21:12:01,944 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 21:12:01,944 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_9bb581d1-c28d-46d7-9076-04dd82ff465b/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 -> 2718f642e307f3f62e4f4b06b51ef37595256727 [2019-11-15 21:12:01,991 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:12:02,002 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:12:02,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:12:02,011 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:12:02,011 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:12:02,012 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2019-11-15 21:12:02,085 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/bin/uautomizer/data/3248fcd0b/08a2bbe0c812477c80faf4704a6d7b5f/FLAGdfbe15664 [2019-11-15 21:12:02,600 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:12:02,601 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2019-11-15 21:12:02,610 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/bin/uautomizer/data/3248fcd0b/08a2bbe0c812477c80faf4704a6d7b5f/FLAGdfbe15664 [2019-11-15 21:12:02,933 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/bin/uautomizer/data/3248fcd0b/08a2bbe0c812477c80faf4704a6d7b5f [2019-11-15 21:12:02,938 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:12:02,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:12:02,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:12:02,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:12:02,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:12:02,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:12:02" (1/1) ... [2019-11-15 21:12:02,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c59f7b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:02, skipping insertion in model container [2019-11-15 21:12:02,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:12:02" (1/1) ... [2019-11-15 21:12:02,962 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:12:03,004 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:12:03,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:12:03,367 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:12:03,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:12:03,444 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:12:03,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:03 WrapperNode [2019-11-15 21:12:03,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:12:03,446 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:12:03,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:12:03,447 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:12:03,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:03" (1/1) ... [2019-11-15 21:12:03,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:03" (1/1) ... [2019-11-15 21:12:03,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:12:03,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:12:03,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:12:03,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:12:03,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:03" (1/1) ... [2019-11-15 21:12:03,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:03" (1/1) ... [2019-11-15 21:12:03,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:03" (1/1) ... [2019-11-15 21:12:03,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:03" (1/1) ... [2019-11-15 21:12:03,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:03" (1/1) ... [2019-11-15 21:12:03,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:03" (1/1) ... [2019-11-15 21:12:03,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:03" (1/1) ... [2019-11-15 21:12:03,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:12:03,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:12:03,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:12:03,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:12:03,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/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 [2019-11-15 21:12:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 21:12:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 21:12:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 21:12:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 21:12:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:12:03,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:12:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 21:12:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-15 21:12:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 21:12:04,313 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:12:04,313 INFO L284 CfgBuilder]: Removed 22 assume(true) statements. [2019-11-15 21:12:04,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:12:04 BoogieIcfgContainer [2019-11-15 21:12:04,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:12:04,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:12:04,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:12:04,319 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:12:04,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:12:02" (1/3) ... [2019-11-15 21:12:04,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c77b640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:12:04, skipping insertion in model container [2019-11-15 21:12:04,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:03" (2/3) ... [2019-11-15 21:12:04,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c77b640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:12:04, skipping insertion in model container [2019-11-15 21:12:04,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:12:04" (3/3) ... [2019-11-15 21:12:04,328 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121a.c [2019-11-15 21:12:04,339 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:12:04,348 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 21:12:04,361 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 21:12:04,392 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:12:04,392 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 21:12:04,392 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:12:04,392 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:12:04,392 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:12:04,393 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:12:04,393 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:12:04,393 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:12:04,413 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-11-15 21:12:04,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 21:12:04,422 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:04,424 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:12:04,426 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:12:04,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:04,432 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2019-11-15 21:12:04,442 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:04,442 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518350104] [2019-11-15 21:12:04,442 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:04,443 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:04,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:04,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:04,614 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518350104] [2019-11-15 21:12:04,615 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:12:04,615 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 21:12:04,615 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692511169] [2019-11-15 21:12:04,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 21:12:04,620 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:12:04,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 21:12:04,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 21:12:04,640 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2019-11-15 21:12:04,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:04,664 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2019-11-15 21:12:04,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 21:12:04,665 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 21:12:04,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:04,677 INFO L225 Difference]: With dead ends: 108 [2019-11-15 21:12:04,678 INFO L226 Difference]: Without dead ends: 52 [2019-11-15 21:12:04,681 INFO L600 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 [2019-11-15 21:12:04,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-15 21:12:04,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-11-15 21:12:04,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-15 21:12:04,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2019-11-15 21:12:04,722 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2019-11-15 21:12:04,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:04,723 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2019-11-15 21:12:04,723 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 21:12:04,723 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2019-11-15 21:12:04,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 21:12:04,724 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:04,724 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:12:04,724 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:12:04,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:04,725 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2019-11-15 21:12:04,725 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:12:04,725 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021498027] [2019-11-15 21:12:04,726 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:04,726 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:12:04,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:12:04,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:12:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:12:04,982 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:12:04,983 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 21:12:05,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:12:05 BoogieIcfgContainer [2019-11-15 21:12:05,027 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:12:05,028 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:12:05,028 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:12:05,028 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:12:05,029 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:12:04" (3/4) ... [2019-11-15 21:12:05,033 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 21:12:05,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:12:05,035 INFO L168 Benchmark]: Toolchain (without parser) took 2095.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -108.3 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2019-11-15 21:12:05,036 INFO L168 Benchmark]: CDTParser took 0.28 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. [2019-11-15 21:12:05,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 501.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-15 21:12:05,037 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.57 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. [2019-11-15 21:12:05,038 INFO L168 Benchmark]: Boogie Preprocessor took 47.76 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. [2019-11-15 21:12:05,038 INFO L168 Benchmark]: RCFGBuilder took 743.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. [2019-11-15 21:12:05,039 INFO L168 Benchmark]: TraceAbstraction took 711.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2019-11-15 21:12:05,040 INFO L168 Benchmark]: Witness Printer took 4.96 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. [2019-11-15 21:12:05,043 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 501.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 76.57 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 47.76 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 743.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 711.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.96 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: 175]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of bitwiseAnd at line 39, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={1:0}] [L169] double x = __VERIFIER_nondet_double(); [L170] double y = 0.0; [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={1:0}] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={1:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={1:0}] [L171] double res = fmod_double(x, y); [L16] return x != x; VAL [one_fmod=1, Zero_fmod={1:0}] [L174] COND TRUE !isnan_double(res) [L175] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 81 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=55occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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-cad4683 [2019-11-15 21:12:07,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:12:07,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:12:07,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:12:07,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:12:07,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:12:07,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:12:07,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:12:07,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:12:07,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:12:07,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:12:07,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:12:07,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:12:07,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:12:07,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:12:07,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:12:07,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:12:07,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:12:07,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:12:07,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:12:07,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:12:07,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:12:07,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:12:07,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:12:07,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:12:07,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:12:07,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:12:07,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:12:07,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:12:07,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:12:07,633 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:12:07,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:12:07,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:12:07,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:12:07,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:12:07,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:12:07,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:12:07,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:12:07,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:12:07,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:12:07,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:12:07,644 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 21:12:07,680 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:12:07,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:12:07,681 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:12:07,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:12:07,682 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:12:07,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:12:07,682 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 21:12:07,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 21:12:07,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:12:07,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 21:12:07,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:12:07,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 21:12:07,683 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 21:12:07,684 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 21:12:07,684 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 21:12:07,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:12:07,684 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:12:07,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 21:12:07,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:12:07,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:12:07,685 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:12:07,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:12:07,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:12:07,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:12:07,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:12:07,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 21:12:07,687 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 21:12:07,687 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 21:12:07,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 21:12:07,687 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 21:12:07,688 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_9bb581d1-c28d-46d7-9076-04dd82ff465b/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 -> 2718f642e307f3f62e4f4b06b51ef37595256727 [2019-11-15 21:12:07,738 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:12:07,760 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:12:07,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:12:07,766 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:12:07,767 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:12:07,768 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2019-11-15 21:12:07,841 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/bin/uautomizer/data/6b85a7595/93e4673ed5d7439aab5190aed0db3910/FLAG9ab490fdf [2019-11-15 21:12:08,275 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:12:08,276 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2019-11-15 21:12:08,283 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/bin/uautomizer/data/6b85a7595/93e4673ed5d7439aab5190aed0db3910/FLAG9ab490fdf [2019-11-15 21:12:08,682 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/bin/uautomizer/data/6b85a7595/93e4673ed5d7439aab5190aed0db3910 [2019-11-15 21:12:08,685 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:12:08,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:12:08,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:12:08,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:12:08,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:12:08,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:12:08" (1/1) ... [2019-11-15 21:12:08,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34074b27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:08, skipping insertion in model container [2019-11-15 21:12:08,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:12:08" (1/1) ... [2019-11-15 21:12:08,704 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:12:08,731 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:12:09,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:12:09,064 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:12:09,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:12:09,238 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:12:09,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:09 WrapperNode [2019-11-15 21:12:09,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:12:09,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:12:09,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:12:09,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:12:09,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:09" (1/1) ... [2019-11-15 21:12:09,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:09" (1/1) ... [2019-11-15 21:12:09,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:12:09,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:12:09,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:12:09,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:12:09,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:09" (1/1) ... [2019-11-15 21:12:09,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:09" (1/1) ... [2019-11-15 21:12:09,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:09" (1/1) ... [2019-11-15 21:12:09,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:09" (1/1) ... [2019-11-15 21:12:09,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:09" (1/1) ... [2019-11-15 21:12:09,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:09" (1/1) ... [2019-11-15 21:12:09,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:09" (1/1) ... [2019-11-15 21:12:09,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:12:09,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:12:09,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:12:09,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:12:09,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/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 [2019-11-15 21:12:09,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-15 21:12:09,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-15 21:12:09,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 21:12:09,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-15 21:12:09,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 21:12:09,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:12:09,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:12:09,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 21:12:09,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 21:12:13,002 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:12:13,002 INFO L284 CfgBuilder]: Removed 22 assume(true) statements. [2019-11-15 21:12:13,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:12:13 BoogieIcfgContainer [2019-11-15 21:12:13,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:12:13,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:12:13,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:12:13,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:12:13,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:12:08" (1/3) ... [2019-11-15 21:12:13,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e00b28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:12:13, skipping insertion in model container [2019-11-15 21:12:13,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:12:09" (2/3) ... [2019-11-15 21:12:13,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e00b28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:12:13, skipping insertion in model container [2019-11-15 21:12:13,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:12:13" (3/3) ... [2019-11-15 21:12:13,013 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121a.c [2019-11-15 21:12:13,025 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:12:13,034 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 21:12:13,046 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 21:12:13,077 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:12:13,077 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 21:12:13,077 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:12:13,077 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:12:13,077 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:12:13,078 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:12:13,078 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:12:13,078 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:12:13,093 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-11-15 21:12:13,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 21:12:13,098 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:13,099 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:12:13,100 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:12:13,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:13,105 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2019-11-15 21:12:13,114 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 21:12:13,114 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378703865] [2019-11-15 21:12:13,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/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 [2019-11-15 21:12:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:14,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 21:12:14,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:12:14,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:14,271 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 21:12:14,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:14,276 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [378703865] [2019-11-15 21:12:14,277 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:12:14,277 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 21:12:14,278 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657127167] [2019-11-15 21:12:14,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 21:12:14,283 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 21:12:14,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 21:12:14,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 21:12:14,297 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2019-11-15 21:12:14,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:12:14,320 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2019-11-15 21:12:14,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 21:12:14,322 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 21:12:14,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:12:14,334 INFO L225 Difference]: With dead ends: 108 [2019-11-15 21:12:14,335 INFO L226 Difference]: Without dead ends: 52 [2019-11-15 21:12:14,338 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 21:12:14,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-15 21:12:14,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-11-15 21:12:14,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-15 21:12:14,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2019-11-15 21:12:14,378 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2019-11-15 21:12:14,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:12:14,378 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2019-11-15 21:12:14,378 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 21:12:14,378 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2019-11-15 21:12:14,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 21:12:14,379 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:12:14,380 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:12:14,593 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 21:12:14,593 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:12:14,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:12:14,594 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2019-11-15 21:12:14,595 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 21:12:14,595 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625191805] [2019-11-15 21:12:14,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/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 [2019-11-15 21:12:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:12:17,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 21:12:17,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:12:30,074 WARN L191 SmtUtils]: Spent 4.62 s on a formula simplification that was a NOOP. DAG size: 8 [2019-11-15 21:12:30,077 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 21:12:39,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:39,640 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 21:12:53,192 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x c_ULTIMATE.start_fmod_double_~y))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2019-11-15 21:12:54,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:12:54,404 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625191805] [2019-11-15 21:12:54,404 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:12:54,405 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-15 21:12:54,405 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287965389] [2019-11-15 21:12:54,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 21:12:54,407 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 21:12:54,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 21:12:54,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=52, Unknown=3, NotChecked=14, Total=90 [2019-11-15 21:12:54,408 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand 10 states. [2019-11-15 21:12:56,779 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x c_ULTIMATE.start_fmod_double_~y))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= (_ +zero 11 53) c_ULTIMATE.start_fmod_double_~y)) is different from false [2019-11-15 21:12:59,233 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x c_ULTIMATE.start_fmod_double_~y))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= (_ +zero 11 53) c_ULTIMATE.start_fmod_double_~y)) is different from true [2019-11-15 21:13:01,666 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (_ +zero 11 53)))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |c_ULTIMATE.start_fmod_double_#res|)) (not (fp.eq |c_ULTIMATE.start_fmod_double_#res| |c_ULTIMATE.start_fmod_double_#res|))) is different from false [2019-11-15 21:13:05,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:05,656 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2019-11-15 21:13:05,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:13:05,657 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-11-15 21:13:05,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:05,659 INFO L225 Difference]: With dead ends: 57 [2019-11-15 21:13:05,659 INFO L226 Difference]: Without dead ends: 52 [2019-11-15 21:13:05,660 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 43.4s TimeCoverageRelationStatistics Valid=31, Invalid=65, Unknown=6, NotChecked=54, Total=156 [2019-11-15 21:13:05,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-15 21:13:05,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-11-15 21:13:05,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-15 21:13:05,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2019-11-15 21:13:05,669 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2019-11-15 21:13:05,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:05,670 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2019-11-15 21:13:05,670 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 21:13:05,670 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2019-11-15 21:13:05,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 21:13:05,672 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:13:05,672 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:13:05,893 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 21:13:05,893 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:13:05,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:13:05,894 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2019-11-15 21:13:05,894 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 21:13:05,894 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1200537619] [2019-11-15 21:13:05,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/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 [2019-11-15 21:13:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:13:06,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 21:13:06,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:13:06,194 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2019-11-15 21:13:06,212 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-15 21:13:06,216 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2019-11-15 21:13:06,217 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 21:13:06,237 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 21:13:06,247 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 21:13:06,248 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 12 [2019-11-15 21:13:06,249 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-15 21:13:06,253 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 21:13:06,254 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 21:13:06,271 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 21:13:06,272 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 21:13:06,273 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:46, output treesize:18 [2019-11-15 21:13:06,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:06,337 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 21:13:06,439 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 21:13:06,440 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 48 [2019-11-15 21:13:06,485 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 21:13:06,486 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 31 treesize of output 35 [2019-11-15 21:13:06,487 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 21:13:06,513 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 21:13:06,522 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 21:13:06,523 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 19 [2019-11-15 21:13:06,524 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-15 21:13:06,527 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 21:13:06,528 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 21:13:06,541 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 21:13:06,542 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 21:13:06,542 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:60, output treesize:20 [2019-11-15 21:13:06,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:13:06,586 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1200537619] [2019-11-15 21:13:06,587 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:13:06,587 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2019-11-15 21:13:06,587 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109209259] [2019-11-15 21:13:06,588 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 21:13:06,588 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 21:13:06,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 21:13:06,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:13:06,589 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand 7 states. [2019-11-15 21:13:06,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:13:06,713 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2019-11-15 21:13:06,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:13:06,717 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2019-11-15 21:13:06,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:13:06,718 INFO L225 Difference]: With dead ends: 52 [2019-11-15 21:13:06,718 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 21:13:06,719 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:13:06,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 21:13:06,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 21:13:06,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 21:13:06,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 21:13:06,720 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-11-15 21:13:06,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:13:06,720 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:13:06,721 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 21:13:06,721 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 21:13:06,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 21:13:06,922 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 21:13:06,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 21:13:10,736 WARN L191 SmtUtils]: Spent 3.74 s on a formula simplification. DAG size of input: 11 DAG size of output: 3 [2019-11-15 21:13:15,659 WARN L191 SmtUtils]: Spent 4.89 s on a formula simplification. DAG size of input: 11 DAG size of output: 3 [2019-11-15 21:13:15,667 INFO L443 ceAbstractionStarter]: For program point L118(lines 118 119) no Hoare annotation was computed. [2019-11-15 21:13:15,667 INFO L443 ceAbstractionStarter]: For program point L118-2(lines 23 161) no Hoare annotation was computed. [2019-11-15 21:13:15,667 INFO L443 ceAbstractionStarter]: For program point L69-2(lines 69 70) no Hoare annotation was computed. [2019-11-15 21:13:15,668 INFO L439 ceAbstractionStarter]: At program point L69-3(lines 69 70) the Hoare annotation is: false [2019-11-15 21:13:15,668 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 21:13:15,668 INFO L443 ceAbstractionStarter]: For program point L152(lines 152 157) no Hoare annotation was computed. [2019-11-15 21:13:15,668 INFO L443 ceAbstractionStarter]: For program point L152-1(lines 140 159) no Hoare annotation was computed. [2019-11-15 21:13:15,668 INFO L443 ceAbstractionStarter]: For program point L152-2(lines 152 157) no Hoare annotation was computed. [2019-11-15 21:13:15,668 INFO L443 ceAbstractionStarter]: For program point L53(lines 23 161) no Hoare annotation was computed. [2019-11-15 21:13:15,669 INFO L443 ceAbstractionStarter]: For program point L120-1(lines 23 161) no Hoare annotation was computed. [2019-11-15 21:13:15,669 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 60) no Hoare annotation was computed. [2019-11-15 21:13:15,669 INFO L443 ceAbstractionStarter]: For program point L104(lines 104 105) no Hoare annotation was computed. [2019-11-15 21:13:15,669 INFO L443 ceAbstractionStarter]: For program point L104-2(lines 101 115) no Hoare annotation was computed. [2019-11-15 21:13:15,669 INFO L443 ceAbstractionStarter]: For program point L55-2(lines 55 56) no Hoare annotation was computed. [2019-11-15 21:13:15,670 INFO L439 ceAbstractionStarter]: At program point L55-3(lines 55 56) the Hoare annotation is: false [2019-11-15 21:13:15,670 INFO L439 ceAbstractionStarter]: At program point L106-1(lines 101 115) the Hoare annotation is: false [2019-11-15 21:13:15,670 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2019-11-15 21:13:15,670 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 21:13:15,670 INFO L443 ceAbstractionStarter]: For program point L91(lines 91 97) no Hoare annotation was computed. [2019-11-15 21:13:15,671 INFO L443 ceAbstractionStarter]: For program point L91-2(lines 87 98) no Hoare annotation was computed. [2019-11-15 21:13:15,671 INFO L443 ceAbstractionStarter]: For program point L58-2(lines 58 59) no Hoare annotation was computed. [2019-11-15 21:13:15,671 INFO L439 ceAbstractionStarter]: At program point L58-3(lines 58 59) the Hoare annotation is: false [2019-11-15 21:13:15,684 INFO L443 ceAbstractionStarter]: For program point L174(lines 174 177) no Hoare annotation was computed. [2019-11-15 21:13:15,685 INFO L443 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2019-11-15 21:13:15,685 INFO L443 ceAbstractionStarter]: For program point L142(lines 142 151) no Hoare annotation was computed. [2019-11-15 21:13:15,685 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 45) no Hoare annotation was computed. [2019-11-15 21:13:15,685 INFO L443 ceAbstractionStarter]: For program point L27-1(lines 27 32) no Hoare annotation was computed. [2019-11-15 21:13:15,686 INFO L439 ceAbstractionStarter]: At program point L27-2(lines 27 32) the Hoare annotation is: (= (_ +zero 11 53) ULTIMATE.start_fmod_double_~y) [2019-11-15 21:13:15,686 INFO L443 ceAbstractionStarter]: For program point L110(lines 110 111) no Hoare annotation was computed. [2019-11-15 21:13:15,686 INFO L439 ceAbstractionStarter]: At program point L160(lines 23 161) the Hoare annotation is: (not (fp.eq |ULTIMATE.start_fmod_double_#res| |ULTIMATE.start_fmod_double_#res|)) [2019-11-15 21:13:15,686 INFO L439 ceAbstractionStarter]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2019-11-15 21:13:15,687 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 21:13:15,687 INFO L443 ceAbstractionStarter]: For program point L127-3(lines 23 161) no Hoare annotation was computed. [2019-11-15 21:13:15,687 INFO L443 ceAbstractionStarter]: For program point L145(lines 145 151) no Hoare annotation was computed. [2019-11-15 21:13:15,687 INFO L443 ceAbstractionStarter]: For program point L79(lines 79 85) no Hoare annotation was computed. [2019-11-15 21:13:15,688 INFO L443 ceAbstractionStarter]: For program point L46(lines 46 51) no Hoare annotation was computed. [2019-11-15 21:13:15,688 INFO L443 ceAbstractionStarter]: For program point L79-2(lines 23 161) no Hoare annotation was computed. [2019-11-15 21:13:15,688 INFO L443 ceAbstractionStarter]: For program point L46-2(lines 23 161) no Hoare annotation was computed. [2019-11-15 21:13:15,688 INFO L446 ceAbstractionStarter]: At program point L179(lines 163 180) the Hoare annotation is: true [2019-11-15 21:13:15,688 INFO L443 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2019-11-15 21:13:15,690 INFO L443 ceAbstractionStarter]: For program point L64(lines 23 161) no Hoare annotation was computed. [2019-11-15 21:13:15,690 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 71) no Hoare annotation was computed. [2019-11-15 21:13:15,691 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 21:13:15,691 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2019-11-15 21:13:15,691 INFO L439 ceAbstractionStarter]: At program point L16(line 16) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) [2019-11-15 21:13:15,692 INFO L443 ceAbstractionStarter]: For program point L132(lines 132 159) no Hoare annotation was computed. [2019-11-15 21:13:15,696 INFO L443 ceAbstractionStarter]: For program point L33(lines 33 38) no Hoare annotation was computed. [2019-11-15 21:13:15,696 INFO L443 ceAbstractionStarter]: For program point L33-1(lines 23 161) no Hoare annotation was computed. [2019-11-15 21:13:15,696 INFO L443 ceAbstractionStarter]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2019-11-15 21:13:15,697 INFO L443 ceAbstractionStarter]: For program point L33-2(lines 33 38) no Hoare annotation was computed. [2019-11-15 21:13:15,697 INFO L439 ceAbstractionStarter]: At program point L66-3(lines 66 67) the Hoare annotation is: false [2019-11-15 21:13:15,697 INFO L443 ceAbstractionStarter]: For program point L134-1(lines 134 139) no Hoare annotation was computed. [2019-11-15 21:13:15,697 INFO L443 ceAbstractionStarter]: For program point L101-1(lines 101 115) no Hoare annotation was computed. [2019-11-15 21:13:15,698 INFO L439 ceAbstractionStarter]: At program point L134-2(lines 134 139) the Hoare annotation is: false [2019-11-15 21:13:15,698 INFO L443 ceAbstractionStarter]: For program point L101-3(lines 101 115) no Hoare annotation was computed. [2019-11-15 21:13:15,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:13:15 BoogieIcfgContainer [2019-11-15 21:13:15,721 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:13:15,721 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:13:15,722 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:13:15,723 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:13:15,724 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:12:13" (3/4) ... [2019-11-15 21:13:15,732 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 21:13:15,751 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-15 21:13:15,752 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-15 21:13:15,808 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9bb581d1-c28d-46d7-9076-04dd82ff465b/bin/uautomizer/witness.graphml [2019-11-15 21:13:15,808 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:13:15,810 INFO L168 Benchmark]: Toolchain (without parser) took 67123.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 951.0 MB in the beginning and 968.1 MB in the end (delta: -17.1 MB). Peak memory consumption was 132.8 MB. Max. memory is 11.5 GB. [2019-11-15 21:13:15,810 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:13:15,811 INFO L168 Benchmark]: CACSL2BoogieTranslator took 551.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -187.7 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-15 21:13:15,812 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.69 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-11-15 21:13:15,812 INFO L168 Benchmark]: Boogie Preprocessor took 59.68 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. [2019-11-15 21:13:15,813 INFO L168 Benchmark]: RCFGBuilder took 3616.89 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: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. [2019-11-15 21:13:15,813 INFO L168 Benchmark]: TraceAbstraction took 62716.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 974.8 MB in the end (delta: 112.1 MB). Peak memory consumption was 112.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:13:15,814 INFO L168 Benchmark]: Witness Printer took 86.85 ms. Allocated memory is still 1.2 GB. Free memory was 974.8 MB in the beginning and 968.1 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-15 21:13:15,817 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 551.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -187.7 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.69 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.68 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 3616.89 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: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 62716.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 974.8 MB in the end (delta: 112.1 MB). Peak memory consumption was 112.1 MB. Max. memory is 11.5 GB. * Witness Printer took 86.85 ms. Allocated memory is still 1.2 GB. Free memory was 974.8 MB in the beginning and 968.1 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 175]: 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: 66]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(\result, \result) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ~Pluszero~LONGDOUBLE() == y - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 62.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 11.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.7s, HoareTripleCheckerStatistics: 156 SDtfs, 6 SDslu, 413 SDs, 0 SdLazy, 24 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 3 IntricatePredicates, 2 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 43.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred 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, 11 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 18 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 38 FormulaSimplificationTreeSizeReductionInter, 8.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 4.3s SatisfiabilityAnalysisTime, 37.0s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 13 QuantifiedInterpolants, 4369 SizeOfPredicates, 16 NumberOfNonLiveVariables, 179 ConjunctsInSsa, 22 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...