./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1071.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_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1071.c -s /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/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 cbf38875841624eee0d839935b3b6d34a59b0b20 ............................................................................................................................................................................................................................................................................ 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_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1071.c -s /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/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 cbf38875841624eee0d839935b3b6d34a59b0b20 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 08:55:24,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 08:55:24,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 08:55:24,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 08:55:24,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 08:55:24,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 08:55:24,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 08:55:24,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 08:55:24,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 08:55:24,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 08:55:24,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 08:55:24,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 08:55:24,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 08:55:24,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 08:55:24,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 08:55:24,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 08:55:24,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 08:55:24,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 08:55:24,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 08:55:24,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 08:55:24,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 08:55:24,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 08:55:24,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 08:55:24,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 08:55:24,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 08:55:24,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 08:55:24,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 08:55:24,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 08:55:24,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 08:55:24,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 08:55:24,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 08:55:24,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 08:55:24,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 08:55:24,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 08:55:24,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 08:55:24,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 08:55:24,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 08:55:24,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 08:55:24,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 08:55:24,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 08:55:24,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 08:55:24,757 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 08:55:24,784 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 08:55:24,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 08:55:24,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 08:55:24,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 08:55:24,795 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 08:55:24,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 08:55:24,795 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 08:55:24,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 08:55:24,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 08:55:24,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 08:55:24,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 08:55:24,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 08:55:24,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 08:55:24,796 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 08:55:24,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 08:55:24,796 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 08:55:24,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 08:55:24,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 08:55:24,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 08:55:24,797 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 08:55:24,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 08:55:24,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 08:55:24,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 08:55:24,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 08:55:24,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 08:55:24,799 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 08:55:24,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 08:55:24,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 08:55:24,799 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_292bd13c-2413-4c21-9631-5d9a415ae811/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 -> cbf38875841624eee0d839935b3b6d34a59b0b20 [2019-11-20 08:55:24,955 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 08:55:24,965 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 08:55:24,968 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 08:55:24,970 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 08:55:24,970 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 08:55:24,972 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1071.c [2019-11-20 08:55:25,038 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/data/a997d45d0/98fa1fb7613f4be5a5d52d7a0cec5445/FLAG4947a2640 [2019-11-20 08:55:25,445 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 08:55:25,445 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/sv-benchmarks/c/float-newlib/float_req_bl_1071.c [2019-11-20 08:55:25,450 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/data/a997d45d0/98fa1fb7613f4be5a5d52d7a0cec5445/FLAG4947a2640 [2019-11-20 08:55:25,862 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/data/a997d45d0/98fa1fb7613f4be5a5d52d7a0cec5445 [2019-11-20 08:55:25,864 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 08:55:25,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 08:55:25,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 08:55:25,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 08:55:25,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 08:55:25,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:55:25" (1/1) ... [2019-11-20 08:55:25,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68656536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:25, skipping insertion in model container [2019-11-20 08:55:25,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:55:25" (1/1) ... [2019-11-20 08:55:25,881 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 08:55:25,898 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 08:55:26,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 08:55:26,225 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 08:55:26,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 08:55:26,274 INFO L192 MainTranslator]: Completed translation [2019-11-20 08:55:26,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:26 WrapperNode [2019-11-20 08:55:26,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 08:55:26,275 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 08:55:26,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 08:55:26,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 08:55:26,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:26" (1/1) ... [2019-11-20 08:55:26,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:26" (1/1) ... [2019-11-20 08:55:26,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 08:55:26,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 08:55:26,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 08:55:26,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 08:55:26,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:26" (1/1) ... [2019-11-20 08:55:26,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:26" (1/1) ... [2019-11-20 08:55:26,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:26" (1/1) ... [2019-11-20 08:55:26,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:26" (1/1) ... [2019-11-20 08:55:26,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:26" (1/1) ... [2019-11-20 08:55:26,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:26" (1/1) ... [2019-11-20 08:55:26,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:26" (1/1) ... [2019-11-20 08:55:26,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 08:55:26,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 08:55:26,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 08:55:26,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 08:55:26,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/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 08:55:26,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 08:55:26,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 08:55:26,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 08:55:26,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 08:55:26,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 08:55:26,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 08:55:26,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 08:55:26,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 08:55:26,854 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 08:55:26,854 INFO L285 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-20 08:55:26,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:55:26 BoogieIcfgContainer [2019-11-20 08:55:26,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 08:55:26,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 08:55:26,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 08:55:26,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 08:55:26,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:55:25" (1/3) ... [2019-11-20 08:55:26,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dba370d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:55:26, skipping insertion in model container [2019-11-20 08:55:26,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:26" (2/3) ... [2019-11-20 08:55:26,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dba370d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:55:26, skipping insertion in model container [2019-11-20 08:55:26,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:55:26" (3/3) ... [2019-11-20 08:55:26,868 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1071.c [2019-11-20 08:55:26,879 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 08:55:26,885 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 08:55:26,894 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 08:55:26,917 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 08:55:26,917 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 08:55:26,917 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 08:55:26,918 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 08:55:26,918 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 08:55:26,918 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 08:55:26,918 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 08:55:26,918 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 08:55:26,934 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-11-20 08:55:26,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 08:55:26,939 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 08:55:26,940 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:55:26,940 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 08:55:26,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:55:26,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1945097259, now seen corresponding path program 1 times [2019-11-20 08:55:26,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:55:26,954 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975706072] [2019-11-20 08:55:26,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:55:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:55:27,058 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 08:55:27,058 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975706072] [2019-11-20 08:55:27,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 08:55:27,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 08:55:27,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944562900] [2019-11-20 08:55:27,064 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 08:55:27,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 08:55:27,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 08:55:27,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 08:55:27,077 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2019-11-20 08:55:27,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:55:27,093 INFO L93 Difference]: Finished difference Result 40 states and 58 transitions. [2019-11-20 08:55:27,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 08:55:27,094 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 08:55:27,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 08:55:27,101 INFO L225 Difference]: With dead ends: 40 [2019-11-20 08:55:27,101 INFO L226 Difference]: Without dead ends: 18 [2019-11-20 08:55:27,105 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 08:55:27,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-20 08:55:27,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-20 08:55:27,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-20 08:55:27,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2019-11-20 08:55:27,137 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 10 [2019-11-20 08:55:27,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 08:55:27,137 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2019-11-20 08:55:27,137 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 08:55:27,137 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-11-20 08:55:27,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 08:55:27,138 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 08:55:27,138 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:55:27,138 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 08:55:27,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:55:27,139 INFO L82 PathProgramCache]: Analyzing trace with hash -390209938, now seen corresponding path program 1 times [2019-11-20 08:55:27,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:55:27,139 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249496163] [2019-11-20 08:55:27,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:55:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:55:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:55:27,257 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:55:27,257 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 08:55:27,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 08:55:27 BoogieIcfgContainer [2019-11-20 08:55:27,282 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 08:55:27,283 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 08:55:27,283 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 08:55:27,283 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 08:55:27,284 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:55:26" (3/4) ... [2019-11-20 08:55:27,288 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 08:55:27,288 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 08:55:27,290 INFO L168 Benchmark]: Toolchain (without parser) took 1423.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -128.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-11-20 08:55:27,291 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 08:55:27,292 INFO L168 Benchmark]: CACSL2BoogieTranslator took 408.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-20 08:55:27,292 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.12 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 08:55:27,293 INFO L168 Benchmark]: Boogie Preprocessor took 31.29 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 08:55:27,293 INFO L168 Benchmark]: RCFGBuilder took 509.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2019-11-20 08:55:27,294 INFO L168 Benchmark]: TraceAbstraction took 425.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-11-20 08:55:27,295 INFO L168 Benchmark]: Witness Printer took 5.46 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 08:55:27,298 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 408.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.12 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 31.29 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 509.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 425.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.46 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: 57]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 38, overapproximation of bitwiseAnd at line 19. Possible FailurePath: [L52] float x = 0.0f / 0.0f; [L13] __int32_t signbit, w, exponent_less_127; [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (w) = gf_u.word [L19] signbit = w & 0x80000000 [L20] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 [L21] COND FALSE !(exponent_less_127 < 23) [L37] COND TRUE exponent_less_127 == 255 [L38] return x + x; [L53] float res = trunc_float(x); [L44] return x != x; [L56] COND TRUE !isnan_float(res) [L57] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 23 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=21occurred 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, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 08:55:29,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 08:55:29,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 08:55:29,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 08:55:29,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 08:55:29,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 08:55:29,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 08:55:29,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 08:55:29,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 08:55:29,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 08:55:29,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 08:55:29,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 08:55:29,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 08:55:29,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 08:55:29,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 08:55:29,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 08:55:29,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 08:55:29,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 08:55:29,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 08:55:29,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 08:55:29,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 08:55:29,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 08:55:29,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 08:55:29,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 08:55:29,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 08:55:29,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 08:55:29,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 08:55:29,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 08:55:29,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 08:55:29,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 08:55:29,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 08:55:29,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 08:55:29,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 08:55:29,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 08:55:29,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 08:55:29,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 08:55:29,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 08:55:29,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 08:55:29,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 08:55:29,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 08:55:29,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 08:55:29,647 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 08:55:29,685 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 08:55:29,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 08:55:29,687 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 08:55:29,692 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 08:55:29,693 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 08:55:29,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 08:55:29,693 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 08:55:29,694 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 08:55:29,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 08:55:29,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 08:55:29,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 08:55:29,695 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 08:55:29,695 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 08:55:29,695 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 08:55:29,695 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 08:55:29,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 08:55:29,696 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 08:55:29,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 08:55:29,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 08:55:29,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 08:55:29,697 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 08:55:29,697 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 08:55:29,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 08:55:29,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 08:55:29,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 08:55:29,698 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 08:55:29,699 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 08:55:29,699 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 08:55:29,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 08:55:29,700 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 08:55:29,700 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_292bd13c-2413-4c21-9631-5d9a415ae811/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 -> cbf38875841624eee0d839935b3b6d34a59b0b20 [2019-11-20 08:55:30,024 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 08:55:30,037 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 08:55:30,041 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 08:55:30,043 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 08:55:30,043 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 08:55:30,044 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1071.c [2019-11-20 08:55:30,106 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/data/be8ea7077/ecd7ac9566f14e5b9c3ddb0b45e518a4/FLAG297c59129 [2019-11-20 08:55:30,529 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 08:55:30,530 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/sv-benchmarks/c/float-newlib/float_req_bl_1071.c [2019-11-20 08:55:30,537 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/data/be8ea7077/ecd7ac9566f14e5b9c3ddb0b45e518a4/FLAG297c59129 [2019-11-20 08:55:30,889 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/data/be8ea7077/ecd7ac9566f14e5b9c3ddb0b45e518a4 [2019-11-20 08:55:30,891 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 08:55:30,893 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 08:55:30,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 08:55:30,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 08:55:30,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 08:55:30,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:55:30" (1/1) ... [2019-11-20 08:55:30,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73671cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:30, skipping insertion in model container [2019-11-20 08:55:30,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:55:30" (1/1) ... [2019-11-20 08:55:30,910 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 08:55:30,931 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 08:55:31,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 08:55:31,195 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 08:55:31,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 08:55:31,253 INFO L192 MainTranslator]: Completed translation [2019-11-20 08:55:31,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:31 WrapperNode [2019-11-20 08:55:31,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 08:55:31,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 08:55:31,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 08:55:31,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 08:55:31,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:31" (1/1) ... [2019-11-20 08:55:31,277 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:31" (1/1) ... [2019-11-20 08:55:31,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 08:55:31,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 08:55:31,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 08:55:31,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 08:55:31,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:31" (1/1) ... [2019-11-20 08:55:31,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:31" (1/1) ... [2019-11-20 08:55:31,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:31" (1/1) ... [2019-11-20 08:55:31,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:31" (1/1) ... [2019-11-20 08:55:31,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:31" (1/1) ... [2019-11-20 08:55:31,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:31" (1/1) ... [2019-11-20 08:55:31,417 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:31" (1/1) ... [2019-11-20 08:55:31,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 08:55:31,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 08:55:31,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 08:55:31,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 08:55:31,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/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 08:55:31,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 08:55:31,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 08:55:31,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 08:55:31,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-20 08:55:31,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 08:55:31,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-20 08:55:31,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 08:55:31,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 08:55:31,856 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 08:55:31,856 INFO L285 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-20 08:55:31,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:55:31 BoogieIcfgContainer [2019-11-20 08:55:31,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 08:55:31,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 08:55:31,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 08:55:31,865 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 08:55:31,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:55:30" (1/3) ... [2019-11-20 08:55:31,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7664eae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:55:31, skipping insertion in model container [2019-11-20 08:55:31,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:55:31" (2/3) ... [2019-11-20 08:55:31,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7664eae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:55:31, skipping insertion in model container [2019-11-20 08:55:31,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:55:31" (3/3) ... [2019-11-20 08:55:31,870 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1071.c [2019-11-20 08:55:31,881 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 08:55:31,892 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 08:55:31,902 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 08:55:31,926 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 08:55:31,927 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 08:55:31,927 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 08:55:31,927 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 08:55:31,928 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 08:55:31,928 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 08:55:31,928 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 08:55:31,928 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 08:55:31,942 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-11-20 08:55:31,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 08:55:31,950 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 08:55:31,951 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:55:31,951 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 08:55:31,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:55:31,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1945097259, now seen corresponding path program 1 times [2019-11-20 08:55:31,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 08:55:31,966 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052086579] [2019-11-20 08:55:31,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/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 08:55:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:55:32,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 08:55:32,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:55:32,088 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 08:55:32,088 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 08:55:32,093 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 08:55:32,094 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052086579] [2019-11-20 08:55:32,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 08:55:32,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 08:55:32,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433705798] [2019-11-20 08:55:32,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 08:55:32,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 08:55:32,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 08:55:32,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 08:55:32,118 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2019-11-20 08:55:32,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:55:32,139 INFO L93 Difference]: Finished difference Result 40 states and 58 transitions. [2019-11-20 08:55:32,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 08:55:32,141 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 08:55:32,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 08:55:32,150 INFO L225 Difference]: With dead ends: 40 [2019-11-20 08:55:32,150 INFO L226 Difference]: Without dead ends: 18 [2019-11-20 08:55:32,154 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 08:55:32,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-20 08:55:32,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-20 08:55:32,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-20 08:55:32,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2019-11-20 08:55:32,192 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 10 [2019-11-20 08:55:32,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 08:55:32,193 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2019-11-20 08:55:32,193 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 08:55:32,193 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-11-20 08:55:32,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 08:55:32,194 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 08:55:32,194 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:55:32,409 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 08:55:32,410 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 08:55:32,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:55:32,410 INFO L82 PathProgramCache]: Analyzing trace with hash -390209938, now seen corresponding path program 1 times [2019-11-20 08:55:32,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 08:55:32,412 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980772648] [2019-11-20 08:55:32,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/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 08:55:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:55:32,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 08:55:32,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:55:32,607 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 08:55:32,607 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 08:55:32,641 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 08:55:32,641 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980772648] [2019-11-20 08:55:32,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 08:55:32,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2019-11-20 08:55:32,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971063303] [2019-11-20 08:55:32,644 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 08:55:32,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 08:55:32,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 08:55:32,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 08:55:32,645 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 5 states. [2019-11-20 08:55:32,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:55:32,705 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-11-20 08:55:32,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 08:55:32,706 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-20 08:55:32,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 08:55:32,707 INFO L225 Difference]: With dead ends: 29 [2019-11-20 08:55:32,707 INFO L226 Difference]: Without dead ends: 24 [2019-11-20 08:55:32,708 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 08:55:32,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-20 08:55:32,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2019-11-20 08:55:32,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-20 08:55:32,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-11-20 08:55:32,719 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 11 [2019-11-20 08:55:32,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 08:55:32,720 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-11-20 08:55:32,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 08:55:32,720 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-11-20 08:55:32,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 08:55:32,722 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 08:55:32,723 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:55:32,945 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 08:55:32,945 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 08:55:32,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:55:32,946 INFO L82 PathProgramCache]: Analyzing trace with hash 843742638, now seen corresponding path program 1 times [2019-11-20 08:55:32,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 08:55:32,946 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35434720] [2019-11-20 08:55:32,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/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 08:55:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:55:33,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 08:55:33,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:55:33,118 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 08:55:33,119 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 08:55:33,167 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 08:55:33,168 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [35434720] [2019-11-20 08:55:33,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 08:55:33,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-20 08:55:33,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629571956] [2019-11-20 08:55:33,170 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 08:55:33,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 08:55:33,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 08:55:33,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-20 08:55:33,171 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 8 states. [2019-11-20 08:55:33,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:55:33,337 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2019-11-20 08:55:33,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 08:55:33,338 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2019-11-20 08:55:33,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 08:55:33,339 INFO L225 Difference]: With dead ends: 24 [2019-11-20 08:55:33,339 INFO L226 Difference]: Without dead ends: 17 [2019-11-20 08:55:33,340 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 08:55:33,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-20 08:55:33,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-20 08:55:33,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-20 08:55:33,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2019-11-20 08:55:33,345 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 12 [2019-11-20 08:55:33,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 08:55:33,346 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2019-11-20 08:55:33,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 08:55:33,346 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-11-20 08:55:33,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 08:55:33,347 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 08:55:33,347 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:55:33,548 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 08:55:33,548 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 08:55:33,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:55:33,549 INFO L82 PathProgramCache]: Analyzing trace with hash -2105231138, now seen corresponding path program 1 times [2019-11-20 08:55:33,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 08:55:33,549 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890633452] [2019-11-20 08:55:33,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-20 08:55:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:55:33,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 08:55:33,645 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:55:33,722 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 08:55:33,723 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 08:55:33,866 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 08:55:33,866 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890633452] [2019-11-20 08:55:33,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 08:55:33,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 08:55:33,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122453724] [2019-11-20 08:55:33,868 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 08:55:33,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 08:55:33,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 08:55:33,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-20 08:55:33,869 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 8 states. [2019-11-20 08:55:33,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:55:33,967 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2019-11-20 08:55:33,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 08:55:33,968 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-11-20 08:55:33,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 08:55:33,968 INFO L225 Difference]: With dead ends: 17 [2019-11-20 08:55:33,968 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 08:55:33,969 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 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 08:55:33,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 08:55:33,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 08:55:33,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 08:55:33,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 08:55:33,970 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-11-20 08:55:33,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 08:55:33,970 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 08:55:33,970 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 08:55:33,971 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 08:55:33,971 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 08:55:34,181 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-20 08:55:34,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 08:55:34,301 INFO L444 ceAbstractionStarter]: For program point L56(lines 56 59) no Hoare annotation was computed. [2019-11-20 08:55:34,302 INFO L440 ceAbstractionStarter]: At program point L44(line 44) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (= (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_trunc_float_~exponent_less_127~0)) (= ULTIMATE.start_trunc_float_~x .cse0) (= |ULTIMATE.start_trunc_float_#res| .cse0))) [2019-11-20 08:55:34,302 INFO L440 ceAbstractionStarter]: At program point L40(lines 12 41) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (= (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_trunc_float_~exponent_less_127~0)) (= ULTIMATE.start_trunc_float_~x .cse0) (= |ULTIMATE.start_trunc_float_#res| .cse0))) [2019-11-20 08:55:34,302 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 08:55:34,302 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 08:55:34,302 INFO L447 ceAbstractionStarter]: At program point L61(lines 46 62) the Hoare annotation is: true [2019-11-20 08:55:34,303 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 08:55:34,303 INFO L444 ceAbstractionStarter]: For program point L57(line 57) no Hoare annotation was computed. [2019-11-20 08:55:34,303 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 57) no Hoare annotation was computed. [2019-11-20 08:55:34,303 INFO L444 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2019-11-20 08:55:34,303 INFO L440 ceAbstractionStarter]: At program point L24-2(lines 24 28) the Hoare annotation is: false [2019-11-20 08:55:34,304 INFO L444 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2019-11-20 08:55:34,304 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 08:55:34,304 INFO L444 ceAbstractionStarter]: For program point L21(lines 21 39) no Hoare annotation was computed. [2019-11-20 08:55:34,305 INFO L444 ceAbstractionStarter]: For program point L21-1(lines 21 39) no Hoare annotation was computed. [2019-11-20 08:55:34,305 INFO L444 ceAbstractionStarter]: For program point L30-1(lines 30 34) no Hoare annotation was computed. [2019-11-20 08:55:34,305 INFO L440 ceAbstractionStarter]: At program point L30-2(lines 30 34) the Hoare annotation is: false [2019-11-20 08:55:34,305 INFO L444 ceAbstractionStarter]: For program point L22(lines 22 35) no Hoare annotation was computed. [2019-11-20 08:55:34,305 INFO L444 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2019-11-20 08:55:34,306 INFO L440 ceAbstractionStarter]: At program point L14-2(lines 14 18) the Hoare annotation is: (= ULTIMATE.start_trunc_float_~x (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2019-11-20 08:55:34,306 INFO L444 ceAbstractionStarter]: For program point L14-3(lines 14 18) no Hoare annotation was computed. [2019-11-20 08:55:34,315 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2019-11-20 08:55:34,319 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:55:34,320 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:55:34,325 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2019-11-20 08:55:34,326 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:55:34,326 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:55:34,327 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:55:34,328 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:55:34,329 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2019-11-20 08:55:34,330 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:55:34,330 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:55:34,331 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2019-11-20 08:55:34,332 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:55:34,332 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:55:34,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 08:55:34 BoogieIcfgContainer [2019-11-20 08:55:34,336 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 08:55:34,342 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 08:55:34,342 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 08:55:34,342 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 08:55:34,343 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:55:31" (3/4) ... [2019-11-20 08:55:34,348 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 08:55:34,373 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-20 08:55:34,388 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-20 08:55:34,389 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 08:55:34,423 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-20 08:55:34,423 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1bv32 == \result && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-20 08:55:34,452 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_292bd13c-2413-4c21-9631-5d9a415ae811/bin/uautomizer/witness.graphml [2019-11-20 08:55:34,453 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 08:55:34,455 INFO L168 Benchmark]: Toolchain (without parser) took 3561.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 955.1 MB in the beginning and 1.0 GB in the end (delta: -70.6 MB). Peak memory consumption was 93.5 MB. Max. memory is 11.5 GB. [2019-11-20 08:55:34,456 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 08:55:34,456 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.08 ms. Allocated memory is still 1.0 GB. Free memory was 955.1 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 08:55:34,457 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 944.3 MB in the beginning and 1.2 GB in the end (delta: -209.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2019-11-20 08:55:34,457 INFO L168 Benchmark]: Boogie Preprocessor took 49.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 08:55:34,458 INFO L168 Benchmark]: RCFGBuilder took 436.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. [2019-11-20 08:55:34,458 INFO L168 Benchmark]: TraceAbstraction took 2479.43 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: 109.5 MB). Peak memory consumption was 109.5 MB. Max. memory is 11.5 GB. [2019-11-20 08:55:34,459 INFO L168 Benchmark]: Witness Printer took 111.21 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 08:55:34,473 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 360.08 ms. Allocated memory is still 1.0 GB. Free memory was 955.1 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 116.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 944.3 MB in the beginning and 1.2 GB in the end (delta: -209.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 436.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2479.43 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: 109.5 MB). Peak memory consumption was 109.5 MB. Max. memory is 11.5 GB. * Witness Printer took 111.21 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - 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: 57]: 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: 24]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 44]: Loop Invariant [2019-11-20 08:55:34,482 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2019-11-20 08:55:34,482 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:55:34,482 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:55:34,483 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2019-11-20 08:55:34,483 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:55:34,484 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((1bv32 == \result && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 14]: Loop Invariant [2019-11-20 08:55:34,484 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:55:34,485 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant [2019-11-20 08:55:34,486 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2019-11-20 08:55:34,486 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:55:34,486 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:55:34,487 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2019-11-20 08:55:34,487 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:55:34,487 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 54 SDtfs, 36 SDslu, 88 SDs, 0 SdLazy, 46 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 58 HoareAnnotationTreeSize, 6 FomulaSimplifications, 32 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 86 ConstructedInterpolants, 4 QuantifiedInterpolants, 3317 SizeOfPredicates, 17 NumberOfNonLiveVariables, 126 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...