./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1031.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1031.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/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 b9e27277237c869a286fcb7699394ad2f7d80117 ................................................................................................................................................................................................................................................................................ 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_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1031.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/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 b9e27277237c869a286fcb7699394ad2f7d80117 ...................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 05:14:42,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:14:42,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:14:42,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:14:42,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:14:42,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:14:42,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:14:42,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:14:42,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:14:42,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:14:42,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:14:42,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:14:42,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:14:42,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:14:42,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:14:42,904 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:14:42,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:14:42,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:14:42,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:14:42,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:14:42,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:14:42,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:14:42,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:14:42,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:14:42,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:14:42,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:14:42,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:14:42,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:14:42,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:14:42,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:14:42,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:14:42,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:14:42,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:14:42,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:14:42,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:14:42,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:14:42,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:14:42,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:14:42,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:14:42,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:14:42,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:14:42,937 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 05:14:42,962 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:14:42,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:14:42,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:14:42,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:14:42,964 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 05:14:42,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:14:42,964 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 05:14:42,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 05:14:42,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 05:14:42,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:14:42,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 05:14:42,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 05:14:42,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 05:14:42,966 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 05:14:42,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:14:42,966 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:14:42,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 05:14:42,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:14:42,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 05:14:42,967 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 05:14:42,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 05:14:42,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:14:42,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:14:42,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 05:14:42,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 05:14:42,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 05:14:42,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 05:14:42,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 05:14:42,968 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_2dcd047f-5210-4728-b531-38a1141503c5/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 -> b9e27277237c869a286fcb7699394ad2f7d80117 [2019-11-20 05:14:43,103 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:14:43,117 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:14:43,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:14:43,121 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:14:43,121 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:14:43,122 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1031.c [2019-11-20 05:14:43,172 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/data/8b39cfe6a/83d64fb5b12d43ba97dee2daa36045a5/FLAG4364e2bbd [2019-11-20 05:14:43,595 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:14:43,596 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/sv-benchmarks/c/float-newlib/double_req_bl_1031.c [2019-11-20 05:14:43,602 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/data/8b39cfe6a/83d64fb5b12d43ba97dee2daa36045a5/FLAG4364e2bbd [2019-11-20 05:14:43,617 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/data/8b39cfe6a/83d64fb5b12d43ba97dee2daa36045a5 [2019-11-20 05:14:43,619 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:14:43,621 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:14:43,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:14:43,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:14:43,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:14:43,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:14:43" (1/1) ... [2019-11-20 05:14:43,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f29b82b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:43, skipping insertion in model container [2019-11-20 05:14:43,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:14:43" (1/1) ... [2019-11-20 05:14:43,639 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:14:43,659 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:14:43,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:14:43,883 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:14:43,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:14:43,942 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:14:43,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:43 WrapperNode [2019-11-20 05:14:43,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:14:43,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:14:43,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:14:43,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:14:43,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:43" (1/1) ... [2019-11-20 05:14:43,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:43" (1/1) ... [2019-11-20 05:14:43,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:14:43,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:14:43,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:14:43,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:14:43,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:43" (1/1) ... [2019-11-20 05:14:43,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:43" (1/1) ... [2019-11-20 05:14:43,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:43" (1/1) ... [2019-11-20 05:14:43,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:43" (1/1) ... [2019-11-20 05:14:43,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:43" (1/1) ... [2019-11-20 05:14:44,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:43" (1/1) ... [2019-11-20 05:14:44,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:43" (1/1) ... [2019-11-20 05:14:44,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:14:44,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:14:44,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:14:44,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:14:44,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:14:44,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 05:14:44,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 05:14:44,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 05:14:44,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:14:44,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:14:44,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 05:14:44,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 05:14:44,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 05:14:44,451 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:14:44,451 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-20 05:14:44,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:14:44 BoogieIcfgContainer [2019-11-20 05:14:44,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:14:44,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 05:14:44,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 05:14:44,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 05:14:44,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:14:43" (1/3) ... [2019-11-20 05:14:44,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a85b827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:14:44, skipping insertion in model container [2019-11-20 05:14:44,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:43" (2/3) ... [2019-11-20 05:14:44,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a85b827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:14:44, skipping insertion in model container [2019-11-20 05:14:44,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:14:44" (3/3) ... [2019-11-20 05:14:44,462 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1031.c [2019-11-20 05:14:44,472 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 05:14:44,482 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 05:14:44,493 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 05:14:44,519 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 05:14:44,519 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 05:14:44,519 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 05:14:44,519 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 05:14:44,520 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 05:14:44,520 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 05:14:44,520 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 05:14:44,520 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 05:14:44,534 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-20 05:14:44,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 05:14:44,540 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:14:44,540 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:14:44,541 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:14:44,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:14:44,546 INFO L82 PathProgramCache]: Analyzing trace with hash 2068161395, now seen corresponding path program 1 times [2019-11-20 05:14:44,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:14:44,555 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190568448] [2019-11-20 05:14:44,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:14:44,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:14:44,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:14:44,655 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190568448] [2019-11-20 05:14:44,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:14:44,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 05:14:44,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355012670] [2019-11-20 05:14:44,660 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 05:14:44,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:14:44,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 05:14:44,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 05:14:44,672 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-11-20 05:14:44,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:14:44,686 INFO L93 Difference]: Finished difference Result 50 states and 74 transitions. [2019-11-20 05:14:44,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 05:14:44,687 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-20 05:14:44,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:14:44,695 INFO L225 Difference]: With dead ends: 50 [2019-11-20 05:14:44,695 INFO L226 Difference]: Without dead ends: 23 [2019-11-20 05:14:44,698 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 05:14:44,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-20 05:14:44,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-20 05:14:44,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-20 05:14:44,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2019-11-20 05:14:44,725 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 11 [2019-11-20 05:14:44,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:14:44,726 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-20 05:14:44,726 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 05:14:44,726 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2019-11-20 05:14:44,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 05:14:44,728 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:14:44,728 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:14:44,729 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:14:44,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:14:44,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1606884976, now seen corresponding path program 1 times [2019-11-20 05:14:44,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:14:44,729 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114624023] [2019-11-20 05:14:44,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:14:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:14:44,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:14:44,817 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:14:44,818 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 05:14:44,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:14:44 BoogieIcfgContainer [2019-11-20 05:14:44,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 05:14:44,841 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:14:44,841 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:14:44,842 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:14:44,842 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:14:44" (3/4) ... [2019-11-20 05:14:44,845 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 05:14:44,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:14:44,848 INFO L168 Benchmark]: Toolchain (without parser) took 1226.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -135.0 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. [2019-11-20 05:14:44,849 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:14:44,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -185.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-20 05:14:44,850 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:14:44,850 INFO L168 Benchmark]: Boogie Preprocessor took 25.28 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 05:14:44,851 INFO L168 Benchmark]: RCFGBuilder took 445.55 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-20 05:14:44,852 INFO L168 Benchmark]: TraceAbstraction took 387.75 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-20 05:14:44,852 INFO L168 Benchmark]: Witness Printer took 4.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:14:44,855 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 318.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -185.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.55 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 25.28 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 445.55 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 387.75 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.36 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: 79]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 34, overapproximation of someBinaryArithmeticDOUBLEoperation at line 74, overapproximation of bitwiseAnd at line 35, overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L74] double x = 0.0 / 0.0; [L18] __int32_t msw, exponent_less_1023; [L19] __uint32_t lsw; [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (msw) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lsw) = ew_u.parts.lsw [L26] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L27] COND TRUE exponent_less_1023 < 20 [L28] COND FALSE !(exponent_less_1023 < 0) [L34] __uint32_t exponent_mask = 0x000fffff >> exponent_less_1023; [L35] COND TRUE (msw & exponent_mask) == 0 && lsw == 0 [L36] return x; [L75] double res = round_double(x); [L15] return x != x; [L78] COND TRUE !isnan_double(res) [L79] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 33 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=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 05:14:46,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:14:46,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:14:46,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:14:46,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:14:46,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:14:46,574 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:14:46,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:14:46,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:14:46,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:14:46,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:14:46,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:14:46,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:14:46,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:14:46,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:14:46,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:14:46,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:14:46,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:14:46,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:14:46,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:14:46,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:14:46,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:14:46,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:14:46,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:14:46,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:14:46,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:14:46,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:14:46,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:14:46,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:14:46,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:14:46,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:14:46,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:14:46,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:14:46,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:14:46,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:14:46,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:14:46,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:14:46,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:14:46,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:14:46,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:14:46,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:14:46,626 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 05:14:46,644 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:14:46,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:14:46,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:14:46,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:14:46,646 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 05:14:46,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:14:46,647 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 05:14:46,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 05:14:46,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:14:46,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 05:14:46,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 05:14:46,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 05:14:46,649 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 05:14:46,649 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 05:14:46,649 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 05:14:46,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:14:46,650 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:14:46,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 05:14:46,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:14:46,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 05:14:46,651 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 05:14:46,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 05:14:46,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:14:46,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:14:46,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 05:14:46,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 05:14:46,653 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 05:14:46,653 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 05:14:46,653 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 05:14:46,653 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 05:14:46,654 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_2dcd047f-5210-4728-b531-38a1141503c5/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 -> b9e27277237c869a286fcb7699394ad2f7d80117 [2019-11-20 05:14:46,984 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:14:47,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:14:47,007 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:14:47,009 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:14:47,009 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:14:47,009 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1031.c [2019-11-20 05:14:47,060 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/data/9d9a94fac/5f8c44967ef241d2b1c6e759a73503b2/FLAG3bfdba593 [2019-11-20 05:14:47,471 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:14:47,472 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/sv-benchmarks/c/float-newlib/double_req_bl_1031.c [2019-11-20 05:14:47,478 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/data/9d9a94fac/5f8c44967ef241d2b1c6e759a73503b2/FLAG3bfdba593 [2019-11-20 05:14:47,489 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/data/9d9a94fac/5f8c44967ef241d2b1c6e759a73503b2 [2019-11-20 05:14:47,492 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:14:47,493 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:14:47,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:14:47,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:14:47,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:14:47,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:14:47" (1/1) ... [2019-11-20 05:14:47,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cd8fb9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:47, skipping insertion in model container [2019-11-20 05:14:47,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:14:47" (1/1) ... [2019-11-20 05:14:47,507 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:14:47,524 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:14:47,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:14:47,689 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:14:47,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:14:47,855 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:14:47,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:47 WrapperNode [2019-11-20 05:14:47,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:14:47,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:14:47,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:14:47,856 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:14:47,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:47" (1/1) ... [2019-11-20 05:14:47,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:47" (1/1) ... [2019-11-20 05:14:47,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:14:47,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:14:47,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:14:47,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:14:47,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:47" (1/1) ... [2019-11-20 05:14:47,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:47" (1/1) ... [2019-11-20 05:14:47,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:47" (1/1) ... [2019-11-20 05:14:47,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:47" (1/1) ... [2019-11-20 05:14:47,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:47" (1/1) ... [2019-11-20 05:14:47,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:47" (1/1) ... [2019-11-20 05:14:47,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:47" (1/1) ... [2019-11-20 05:14:47,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:14:47,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:14:47,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:14:47,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:14:47,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:14:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-20 05:14:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 05:14:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-20 05:14:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:14:48,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:14:48,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 05:14:48,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 05:14:48,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 05:14:48,430 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:14:48,431 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-20 05:14:48,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:14:48 BoogieIcfgContainer [2019-11-20 05:14:48,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:14:48,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 05:14:48,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 05:14:48,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 05:14:48,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:14:47" (1/3) ... [2019-11-20 05:14:48,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290bfe80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:14:48, skipping insertion in model container [2019-11-20 05:14:48,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:47" (2/3) ... [2019-11-20 05:14:48,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290bfe80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:14:48, skipping insertion in model container [2019-11-20 05:14:48,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:14:48" (3/3) ... [2019-11-20 05:14:48,439 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1031.c [2019-11-20 05:14:48,448 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 05:14:48,453 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 05:14:48,464 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 05:14:48,486 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 05:14:48,486 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 05:14:48,486 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 05:14:48,486 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 05:14:48,486 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 05:14:48,486 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 05:14:48,487 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 05:14:48,487 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 05:14:48,503 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-20 05:14:48,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 05:14:48,509 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:14:48,510 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:14:48,510 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:14:48,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:14:48,518 INFO L82 PathProgramCache]: Analyzing trace with hash 2068161395, now seen corresponding path program 1 times [2019-11-20 05:14:48,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:14:48,530 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1823783436] [2019-11-20 05:14:48,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-20 05:14:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:14:48,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 05:14:48,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:14:48,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:14:48,656 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:14:48,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:14:48,664 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1823783436] [2019-11-20 05:14:48,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:14:48,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 05:14:48,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438339542] [2019-11-20 05:14:48,671 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 05:14:48,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 05:14:48,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 05:14:48,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 05:14:48,686 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-11-20 05:14:48,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:14:48,708 INFO L93 Difference]: Finished difference Result 50 states and 74 transitions. [2019-11-20 05:14:48,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 05:14:48,710 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-20 05:14:48,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:14:48,730 INFO L225 Difference]: With dead ends: 50 [2019-11-20 05:14:48,730 INFO L226 Difference]: Without dead ends: 23 [2019-11-20 05:14:48,734 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 05:14:48,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-20 05:14:48,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-20 05:14:48,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-20 05:14:48,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2019-11-20 05:14:48,772 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 11 [2019-11-20 05:14:48,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:14:48,772 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-20 05:14:48,773 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 05:14:48,773 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2019-11-20 05:14:48,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 05:14:48,774 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:14:48,774 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:14:48,987 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 05:14:48,987 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:14:48,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:14:48,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1606884976, now seen corresponding path program 1 times [2019-11-20 05:14:48,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:14:48,989 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094129925] [2019-11-20 05:14:48,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-20 05:14:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:14:49,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 05:14:49,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:14:49,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:14:49,170 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:14:49,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:14:49,235 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094129925] [2019-11-20 05:14:49,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:14:49,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-20 05:14:49,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878182535] [2019-11-20 05:14:49,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 05:14:49,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 05:14:49,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 05:14:49,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-20 05:14:49,240 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand 8 states. [2019-11-20 05:14:49,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:14:49,544 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2019-11-20 05:14:49,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 05:14:49,545 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2019-11-20 05:14:49,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:14:49,545 INFO L225 Difference]: With dead ends: 28 [2019-11-20 05:14:49,546 INFO L226 Difference]: Without dead ends: 22 [2019-11-20 05:14:49,547 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-20 05:14:49,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-20 05:14:49,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-20 05:14:49,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-20 05:14:49,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2019-11-20 05:14:49,554 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 12 [2019-11-20 05:14:49,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:14:49,554 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2019-11-20 05:14:49,554 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 05:14:49,554 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2019-11-20 05:14:49,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 05:14:49,555 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:14:49,555 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:14:49,764 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 05:14:49,765 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:14:49,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:14:49,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1251020519, now seen corresponding path program 1 times [2019-11-20 05:14:49,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:14:49,766 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1772077337] [2019-11-20 05:14:49,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-20 05:14:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:14:49,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 05:14:49,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:14:49,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:14:49,929 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:14:50,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:14:50,069 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1772077337] [2019-11-20 05:14:50,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:14:50,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 05:14:50,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603179498] [2019-11-20 05:14:50,070 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 05:14:50,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 05:14:50,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 05:14:50,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-20 05:14:50,071 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 8 states. [2019-11-20 05:14:50,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:14:50,210 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2019-11-20 05:14:50,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 05:14:50,212 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-20 05:14:50,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:14:50,212 INFO L225 Difference]: With dead ends: 22 [2019-11-20 05:14:50,212 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 05:14:50,213 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-20 05:14:50,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 05:14:50,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 05:14:50,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 05:14:50,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 05:14:50,214 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-20 05:14:50,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:14:50,214 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:14:50,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 05:14:50,214 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 05:14:50,215 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 05:14:50,421 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 05:14:50,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 05:14:50,499 INFO L444 ceAbstractionStarter]: For program point L27(lines 27 56) no Hoare annotation was computed. [2019-11-20 05:14:50,499 INFO L444 ceAbstractionStarter]: For program point L52(lines 52 53) no Hoare annotation was computed. [2019-11-20 05:14:50,499 INFO L444 ceAbstractionStarter]: For program point L52-2(lines 52 53) no Hoare annotation was computed. [2019-11-20 05:14:50,500 INFO L440 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_round_double_~x .cse0) (= |ULTIMATE.start_round_double_#res| .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|))) [2019-11-20 05:14:50,500 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 05:14:50,500 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 05:14:50,500 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 05:14:50,500 INFO L444 ceAbstractionStarter]: For program point L28(lines 28 40) no Hoare annotation was computed. [2019-11-20 05:14:50,500 INFO L444 ceAbstractionStarter]: For program point L57(lines 57 62) no Hoare annotation was computed. [2019-11-20 05:14:50,501 INFO L444 ceAbstractionStarter]: For program point L57-1(lines 17 64) no Hoare annotation was computed. [2019-11-20 05:14:50,501 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 79) no Hoare annotation was computed. [2019-11-20 05:14:50,501 INFO L444 ceAbstractionStarter]: For program point L57-2(lines 57 62) no Hoare annotation was computed. [2019-11-20 05:14:50,501 INFO L444 ceAbstractionStarter]: For program point L20-1(lines 20 25) no Hoare annotation was computed. [2019-11-20 05:14:50,501 INFO L440 ceAbstractionStarter]: At program point L20-2(lines 20 25) the Hoare annotation is: (= ULTIMATE.start_round_double_~x (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53))) [2019-11-20 05:14:50,502 INFO L444 ceAbstractionStarter]: For program point L20-3(lines 20 25) no Hoare annotation was computed. [2019-11-20 05:14:50,502 INFO L444 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2019-11-20 05:14:50,502 INFO L444 ceAbstractionStarter]: For program point L78(lines 78 81) no Hoare annotation was computed. [2019-11-20 05:14:50,502 INFO L444 ceAbstractionStarter]: For program point L41(lines 41 56) no Hoare annotation was computed. [2019-11-20 05:14:50,502 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 05:14:50,502 INFO L447 ceAbstractionStarter]: At program point L83(lines 66 84) the Hoare annotation is: true [2019-11-20 05:14:50,502 INFO L444 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2019-11-20 05:14:50,503 INFO L444 ceAbstractionStarter]: For program point L42(lines 42 45) no Hoare annotation was computed. [2019-11-20 05:14:50,503 INFO L440 ceAbstractionStarter]: At program point L63(lines 17 64) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_round_double_~x .cse0) (= |ULTIMATE.start_round_double_#res| .cse0))) [2019-11-20 05:14:50,503 INFO L444 ceAbstractionStarter]: For program point L30(lines 30 31) no Hoare annotation was computed. [2019-11-20 05:14:50,503 INFO L444 ceAbstractionStarter]: For program point L30-2(lines 30 31) no Hoare annotation was computed. [2019-11-20 05:14:50,503 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2019-11-20 05:14:50,509 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:14:50,510 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:14:50,513 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:14:50,514 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:14:50,515 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:14:50,515 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:14:50,516 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:14:50,516 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:14:50,517 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:14:50,517 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:14:50,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:14:50 BoogieIcfgContainer [2019-11-20 05:14:50,519 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 05:14:50,520 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:14:50,520 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:14:50,520 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:14:50,521 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:14:48" (3/4) ... [2019-11-20 05:14:50,524 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 05:14:50,535 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-20 05:14:50,535 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 05:14:50,536 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 05:14:50,562 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-20 05:14:50,563 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result [2019-11-20 05:14:50,588 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2dcd047f-5210-4728-b531-38a1141503c5/bin/uautomizer/witness.graphml [2019-11-20 05:14:50,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:14:50,590 INFO L168 Benchmark]: Toolchain (without parser) took 3096.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 961.7 MB in the beginning and 1.0 GB in the end (delta: -53.6 MB). Peak memory consumption was 93.7 MB. Max. memory is 11.5 GB. [2019-11-20 05:14:50,590 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:14:50,591 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -182.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-20 05:14:50,591 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-20 05:14:50,592 INFO L168 Benchmark]: Boogie Preprocessor took 53.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:14:50,592 INFO L168 Benchmark]: RCFGBuilder took 461.16 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: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2019-11-20 05:14:50,593 INFO L168 Benchmark]: TraceAbstraction took 2086.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 95.5 MB). Peak memory consumption was 95.5 MB. Max. memory is 11.5 GB. [2019-11-20 05:14:50,593 INFO L168 Benchmark]: Witness Printer took 68.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:14:50,595 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 361.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -182.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 461.16 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: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2086.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 95.5 MB). Peak memory consumption was 95.5 MB. Max. memory is 11.5 GB. * Witness Printer took 68.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 79]: 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: 17]: Loop Invariant [2019-11-20 05:14:50,603 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:14:50,603 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:14:50,603 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:14:50,604 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 15]: Loop Invariant [2019-11-20 05:14:50,604 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:14:50,604 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:14:50,605 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:14:50,605 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result - InvariantResult [Line: 20]: Loop Invariant [2019-11-20 05:14:50,606 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:14:50,606 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 30 SDslu, 99 SDs, 0 SdLazy, 45 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 36 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 4 QuantifiedInterpolants, 3206 SizeOfPredicates, 14 NumberOfNonLiveVariables, 113 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...