./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.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_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/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 5cd93119259b478e9ace2ae93fde799beac44478 ............................................................................................................................................................................................................................................................................................. 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_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/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 5cd93119259b478e9ace2ae93fde799beac44478 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 05:25:02,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:25:02,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:25:02,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:25:02,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:25:02,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:25:02,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:25:02,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:25:02,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:25:03,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:25:03,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:25:03,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:25:03,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:25:03,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:25:03,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:25:03,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:25:03,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:25:03,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:25:03,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:25:03,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:25:03,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:25:03,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:25:03,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:25:03,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:25:03,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:25:03,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:25:03,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:25:03,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:25:03,025 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:25:03,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:25:03,027 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:25:03,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:25:03,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:25:03,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:25:03,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:25:03,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:25:03,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:25:03,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:25:03,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:25:03,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:25:03,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:25:03,033 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 05:25:03,048 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:25:03,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:25:03,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:25:03,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:25:03,050 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 05:25:03,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:25:03,050 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 05:25:03,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 05:25:03,051 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 05:25:03,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:25:03,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 05:25:03,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 05:25:03,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 05:25:03,052 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 05:25:03,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:25:03,052 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:25:03,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 05:25:03,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:25:03,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 05:25:03,053 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 05:25:03,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 05:25:03,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:25:03,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:25:03,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 05:25:03,054 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 05:25:03,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 05:25:03,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 05:25:03,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 05:25:03,055 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_2cb2d533-f134-4c81-a095-1aa9a8c9717f/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 -> 5cd93119259b478e9ace2ae93fde799beac44478 [2019-11-20 05:25:03,249 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:25:03,266 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:25:03,271 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:25:03,272 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:25:03,273 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:25:03,274 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2019-11-20 05:25:03,352 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/data/7a2813ecc/498fa891ceec4d6093803bedb3b5bb4c/FLAGd48cc7ae2 [2019-11-20 05:25:03,859 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:25:03,860 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2019-11-20 05:25:03,874 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/data/7a2813ecc/498fa891ceec4d6093803bedb3b5bb4c/FLAGd48cc7ae2 [2019-11-20 05:25:04,180 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/data/7a2813ecc/498fa891ceec4d6093803bedb3b5bb4c [2019-11-20 05:25:04,183 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:25:04,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:25:04,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:25:04,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:25:04,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:25:04,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:25:04" (1/1) ... [2019-11-20 05:25:04,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fc7e358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:04, skipping insertion in model container [2019-11-20 05:25:04,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:25:04" (1/1) ... [2019-11-20 05:25:04,202 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:25:04,226 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:25:04,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:25:04,550 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:25:04,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:25:04,623 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:25:04,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:04 WrapperNode [2019-11-20 05:25:04,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:25:04,626 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:25:04,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:25:04,626 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:25:04,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:04" (1/1) ... [2019-11-20 05:25:04,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:04" (1/1) ... [2019-11-20 05:25:04,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:25:04,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:25:04,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:25:04,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:25:04,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:04" (1/1) ... [2019-11-20 05:25:04,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:04" (1/1) ... [2019-11-20 05:25:04,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:04" (1/1) ... [2019-11-20 05:25:04,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:04" (1/1) ... [2019-11-20 05:25:04,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:04" (1/1) ... [2019-11-20 05:25:04,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:04" (1/1) ... [2019-11-20 05:25:04,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:04" (1/1) ... [2019-11-20 05:25:04,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:25:04,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:25:04,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:25:04,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:25:04,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:25:04,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 05:25:04,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 05:25:04,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 05:25:04,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 05:25:04,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:25:04,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:25:04,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 05:25:04,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-20 05:25:04,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 05:25:05,362 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:25:05,362 INFO L285 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-20 05:25:05,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:25:05 BoogieIcfgContainer [2019-11-20 05:25:05,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:25:05,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 05:25:05,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 05:25:05,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 05:25:05,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:25:04" (1/3) ... [2019-11-20 05:25:05,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1324c8a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:25:05, skipping insertion in model container [2019-11-20 05:25:05,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:04" (2/3) ... [2019-11-20 05:25:05,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1324c8a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:25:05, skipping insertion in model container [2019-11-20 05:25:05,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:25:05" (3/3) ... [2019-11-20 05:25:05,372 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122a.c [2019-11-20 05:25:05,382 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 05:25:05,389 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 05:25:05,401 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 05:25:05,424 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 05:25:05,425 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 05:25:05,425 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 05:25:05,425 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 05:25:05,425 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 05:25:05,425 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 05:25:05,426 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 05:25:05,426 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 05:25:05,442 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-20 05:25:05,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 05:25:05,448 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:25:05,449 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:25:05,450 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:25:05,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:25:05,457 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-11-20 05:25:05,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:25:05,481 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158677066] [2019-11-20 05:25:05,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:25:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:25:05,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:25:05,681 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158677066] [2019-11-20 05:25:05,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:25:05,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 05:25:05,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188580223] [2019-11-20 05:25:05,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 05:25:05,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:25:05,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 05:25:05,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 05:25:05,710 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-20 05:25:05,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:25:05,751 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-11-20 05:25:05,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 05:25:05,753 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 05:25:05,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:25:05,772 INFO L225 Difference]: With dead ends: 82 [2019-11-20 05:25:05,772 INFO L226 Difference]: Without dead ends: 39 [2019-11-20 05:25:05,782 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 05:25:05,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-20 05:25:05,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-20 05:25:05,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-20 05:25:05,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-11-20 05:25:05,835 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-11-20 05:25:05,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:25:05,836 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-11-20 05:25:05,836 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 05:25:05,836 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-11-20 05:25:05,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 05:25:05,837 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:25:05,837 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:25:05,838 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:25:05,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:25:05,838 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-11-20 05:25:05,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:25:05,839 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762565571] [2019-11-20 05:25:05,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:25:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:25:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:25:05,995 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:25:05,995 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 05:25:06,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:25:06 BoogieIcfgContainer [2019-11-20 05:25:06,032 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 05:25:06,033 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:25:06,033 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:25:06,033 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:25:06,034 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:25:05" (3/4) ... [2019-11-20 05:25:06,038 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 05:25:06,038 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:25:06,041 INFO L168 Benchmark]: Toolchain (without parser) took 1855.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -112.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-20 05:25:06,041 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:25:06,042 INFO L168 Benchmark]: CACSL2BoogieTranslator took 439.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -174.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-20 05:25:06,043 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 05:25:06,043 INFO L168 Benchmark]: Boogie Preprocessor took 93.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:25:06,044 INFO L168 Benchmark]: RCFGBuilder took 557.31 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: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-11-20 05:25:06,045 INFO L168 Benchmark]: TraceAbstraction took 667.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-20 05:25:06,045 INFO L168 Benchmark]: Witness Printer took 5.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:25:06,049 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 439.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -174.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 93.34 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 557.31 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: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 667.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.49 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: 123]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 108, overapproximation of someUnaryDOUBLEoperation at line 14, overapproximation of bitwiseAnd at line 30, overapproximation of someBinaryArithmeticFLOAToperation at line 35, overapproximation of bitwiseXor at line 31. Possible FailurePath: [L12-L15] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={3:0}] [L117] float x = 1.0f / 0.0f; [L118] float y = __VERIFIER_nondet_float(); [L18] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={3:0}] [L21] ieee_float_shape_type gf_u; [L22] gf_u.value = (x) [L23] EXPR gf_u.word [L23] (hx) = gf_u.word [L26] ieee_float_shape_type gf_u; [L27] gf_u.value = (y) [L28] EXPR gf_u.word [L28] (hy) = gf_u.word [L30] sx = hx & 0x80000000 [L31] hx ^= sx [L32] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={3:0}] [L34] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L35] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={3:0}] [L119] float res = fmod_float(x, y); [L108] return x != x; VAL [one_fmod=1, Zero_fmod={3:0}] [L122] COND TRUE !isnan_float(res) [L123] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 57 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=42occurred 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, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 05:25:08,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:25:08,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:25:08,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:25:08,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:25:08,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:25:08,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:25:08,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:25:08,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:25:08,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:25:08,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:25:08,318 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:25:08,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:25:08,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:25:08,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:25:08,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:25:08,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:25:08,325 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:25:08,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:25:08,329 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:25:08,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:25:08,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:25:08,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:25:08,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:25:08,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:25:08,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:25:08,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:25:08,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:25:08,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:25:08,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:25:08,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:25:08,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:25:08,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:25:08,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:25:08,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:25:08,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:25:08,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:25:08,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:25:08,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:25:08,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:25:08,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:25:08,349 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 05:25:08,367 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:25:08,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:25:08,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:25:08,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:25:08,369 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 05:25:08,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:25:08,369 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 05:25:08,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 05:25:08,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:25:08,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 05:25:08,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 05:25:08,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 05:25:08,386 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 05:25:08,386 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 05:25:08,387 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 05:25:08,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:25:08,387 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:25:08,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 05:25:08,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:25:08,388 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 05:25:08,389 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 05:25:08,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 05:25:08,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:25:08,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:25:08,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 05:25:08,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 05:25:08,392 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 05:25:08,393 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 05:25:08,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 05:25:08,393 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 05:25:08,394 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_2cb2d533-f134-4c81-a095-1aa9a8c9717f/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 -> 5cd93119259b478e9ace2ae93fde799beac44478 [2019-11-20 05:25:08,824 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:25:08,835 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:25:08,843 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:25:08,844 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:25:08,845 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:25:08,845 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2019-11-20 05:25:08,907 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/data/f29706c41/1e7ba6b2bb21435a9463c18c566b0d8c/FLAG7b061d178 [2019-11-20 05:25:09,382 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:25:09,384 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2019-11-20 05:25:09,392 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/data/f29706c41/1e7ba6b2bb21435a9463c18c566b0d8c/FLAG7b061d178 [2019-11-20 05:25:09,748 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/data/f29706c41/1e7ba6b2bb21435a9463c18c566b0d8c [2019-11-20 05:25:09,751 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:25:09,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:25:09,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:25:09,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:25:09,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:25:09,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:25:09" (1/1) ... [2019-11-20 05:25:09,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@210900af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:09, skipping insertion in model container [2019-11-20 05:25:09,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:25:09" (1/1) ... [2019-11-20 05:25:09,773 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:25:09,803 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:25:10,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:25:10,136 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:25:10,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:25:10,346 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:25:10,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:10 WrapperNode [2019-11-20 05:25:10,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:25:10,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:25:10,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:25:10,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:25:10,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:10" (1/1) ... [2019-11-20 05:25:10,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:10" (1/1) ... [2019-11-20 05:25:10,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:25:10,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:25:10,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:25:10,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:25:10,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:10" (1/1) ... [2019-11-20 05:25:10,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:10" (1/1) ... [2019-11-20 05:25:10,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:10" (1/1) ... [2019-11-20 05:25:10,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:10" (1/1) ... [2019-11-20 05:25:10,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:10" (1/1) ... [2019-11-20 05:25:10,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:10" (1/1) ... [2019-11-20 05:25:10,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:10" (1/1) ... [2019-11-20 05:25:10,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:25:10,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:25:10,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:25:10,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:25:10,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:25:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-20 05:25:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 05:25:10,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-20 05:25:10,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 05:25:10,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:25:10,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:25:10,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-20 05:25:10,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 05:25:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 05:25:12,893 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:25:12,893 INFO L285 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-20 05:25:12,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:25:12 BoogieIcfgContainer [2019-11-20 05:25:12,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:25:12,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 05:25:12,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 05:25:12,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 05:25:12,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:25:09" (1/3) ... [2019-11-20 05:25:12,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308fc1c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:25:12, skipping insertion in model container [2019-11-20 05:25:12,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:25:10" (2/3) ... [2019-11-20 05:25:12,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308fc1c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:25:12, skipping insertion in model container [2019-11-20 05:25:12,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:25:12" (3/3) ... [2019-11-20 05:25:12,903 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122a.c [2019-11-20 05:25:12,915 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 05:25:12,923 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 05:25:12,934 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 05:25:12,962 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 05:25:12,962 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 05:25:12,962 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 05:25:12,962 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 05:25:12,962 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 05:25:12,963 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 05:25:12,963 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 05:25:12,963 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 05:25:12,980 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-20 05:25:12,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 05:25:12,987 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:25:12,989 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:25:12,989 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:25:12,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:25:12,996 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-11-20 05:25:13,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:25:13,010 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885984708] [2019-11-20 05:25:13,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-20 05:25:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:25:13,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 05:25:13,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:25:13,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:25:13,481 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:25:13,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:25:13,486 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1885984708] [2019-11-20 05:25:13,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:25:13,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 05:25:13,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081384834] [2019-11-20 05:25:13,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 05:25:13,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 05:25:13,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 05:25:13,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 05:25:13,510 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-20 05:25:13,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:25:13,533 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-11-20 05:25:13,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 05:25:13,535 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 05:25:13,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:25:13,549 INFO L225 Difference]: With dead ends: 82 [2019-11-20 05:25:13,549 INFO L226 Difference]: Without dead ends: 39 [2019-11-20 05:25:13,553 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 05:25:13,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-20 05:25:13,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-20 05:25:13,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-20 05:25:13,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-11-20 05:25:13,590 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-11-20 05:25:13,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:25:13,590 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-11-20 05:25:13,590 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 05:25:13,591 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-11-20 05:25:13,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 05:25:13,591 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:25:13,592 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:25:13,801 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 05:25:13,801 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:25:13,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:25:13,802 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-11-20 05:25:13,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:25:13,803 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2113773235] [2019-11-20 05:25:13,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-20 05:25:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:25:14,159 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 05:25:14,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:25:15,495 WARN L191 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2019-11-20 05:25:15,499 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:25:16,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:25:16,739 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:25:20,496 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_float_~y (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven c_ULTIMATE.start_fmod_float_~x ULTIMATE.start_fmod_float_~y))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2019-11-20 05:25:20,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:25:20,672 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2113773235] [2019-11-20 05:25:20,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:25:20,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-20 05:25:20,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150500385] [2019-11-20 05:25:20,675 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 05:25:20,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 05:25:20,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 05:25:20,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=54, Unknown=1, NotChecked=14, Total=90 [2019-11-20 05:25:20,676 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 10 states. [2019-11-20 05:25:24,535 WARN L191 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2019-11-20 05:25:26,023 WARN L191 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 14 [2019-11-20 05:25:27,583 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 21 DAG size of output: 16 [2019-11-20 05:25:27,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:25:27,776 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2019-11-20 05:25:27,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 05:25:27,777 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-11-20 05:25:27,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:25:27,778 INFO L225 Difference]: With dead ends: 49 [2019-11-20 05:25:27,779 INFO L226 Difference]: Without dead ends: 44 [2019-11-20 05:25:27,780 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=45, Invalid=90, Unknown=1, NotChecked=20, Total=156 [2019-11-20 05:25:27,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-11-20 05:25:27,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2019-11-20 05:25:27,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-20 05:25:27,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-11-20 05:25:27,789 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2019-11-20 05:25:27,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:25:27,789 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-11-20 05:25:27,790 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 05:25:27,790 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2019-11-20 05:25:27,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 05:25:27,791 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:25:27,791 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:25:28,011 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 05:25:28,011 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:25:28,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:25:28,012 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2019-11-20 05:25:28,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:25:28,013 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960970903] [2019-11-20 05:25:28,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-20 05:25:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:25:28,121 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 05:25:28,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:25:28,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:25:28,185 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:25:28,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:25:28,290 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960970903] [2019-11-20 05:25:28,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:25:28,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2019-11-20 05:25:28,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458995405] [2019-11-20 05:25:28,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 05:25:28,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 05:25:28,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 05:25:28,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-20 05:25:28,292 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 7 states. [2019-11-20 05:25:28,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:25:28,344 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2019-11-20 05:25:28,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 05:25:28,348 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-20 05:25:28,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:25:28,348 INFO L225 Difference]: With dead ends: 39 [2019-11-20 05:25:28,348 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 05:25:28,349 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-20 05:25:28,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 05:25:28,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 05:25:28,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 05:25:28,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 05:25:28,350 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-11-20 05:25:28,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:25:28,351 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:25:28,351 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 05:25:28,351 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 05:25:28,351 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 05:25:28,564 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 05:25:28,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 05:25:28,685 INFO L444 ceAbstractionStarter]: For program point L52-1(lines 17 105) no Hoare annotation was computed. [2019-11-20 05:25:28,685 INFO L444 ceAbstractionStarter]: For program point L36(lines 36 37) no Hoare annotation was computed. [2019-11-20 05:25:28,685 INFO L447 ceAbstractionStarter]: At program point L127(lines 110 128) the Hoare annotation is: true [2019-11-20 05:25:28,685 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 05:25:28,686 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 05:25:28,686 INFO L444 ceAbstractionStarter]: For program point L86(lines 86 103) no Hoare annotation was computed. [2019-11-20 05:25:28,686 INFO L444 ceAbstractionStarter]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2019-11-20 05:25:28,686 INFO L440 ceAbstractionStarter]: At program point L20-2(lines 20 24) the Hoare annotation is: (= ULTIMATE.start_fmod_float_~x (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) [2019-11-20 05:25:28,686 INFO L444 ceAbstractionStarter]: For program point L70(lines 70 71) no Hoare annotation was computed. [2019-11-20 05:25:28,687 INFO L444 ceAbstractionStarter]: For program point L46(lines 17 105) no Hoare annotation was computed. [2019-11-20 05:25:28,687 INFO L440 ceAbstractionStarter]: At program point L104(lines 17 105) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~x (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|))) [2019-11-20 05:25:28,687 INFO L444 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-11-20 05:25:28,687 INFO L444 ceAbstractionStarter]: For program point L88-1(lines 88 92) no Hoare annotation was computed. [2019-11-20 05:25:28,687 INFO L440 ceAbstractionStarter]: At program point L88-2(lines 88 92) the Hoare annotation is: false [2019-11-20 05:25:28,688 INFO L444 ceAbstractionStarter]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2019-11-20 05:25:28,688 INFO L440 ceAbstractionStarter]: At program point L47-3(lines 47 48) the Hoare annotation is: false [2019-11-20 05:25:28,688 INFO L444 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-11-20 05:25:28,688 INFO L440 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-11-20 05:25:28,689 INFO L444 ceAbstractionStarter]: For program point L97-3(lines 97 101) no Hoare annotation was computed. [2019-11-20 05:25:28,689 INFO L444 ceAbstractionStarter]: For program point L122(lines 122 125) no Hoare annotation was computed. [2019-11-20 05:25:28,689 INFO L444 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2019-11-20 05:25:28,689 INFO L444 ceAbstractionStarter]: For program point L40-1(lines 17 105) no Hoare annotation was computed. [2019-11-20 05:25:28,690 INFO L444 ceAbstractionStarter]: For program point L65-1(lines 65 74) no Hoare annotation was computed. [2019-11-20 05:25:28,690 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 05:25:28,690 INFO L444 ceAbstractionStarter]: For program point L65-3(lines 65 74) no Hoare annotation was computed. [2019-11-20 05:25:28,690 INFO L444 ceAbstractionStarter]: For program point L123(line 123) no Hoare annotation was computed. [2019-11-20 05:25:28,691 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2019-11-20 05:25:28,691 INFO L440 ceAbstractionStarter]: At program point L82-2(lines 82 85) the Hoare annotation is: false [2019-11-20 05:25:28,691 INFO L444 ceAbstractionStarter]: For program point L82-3(lines 17 105) no Hoare annotation was computed. [2019-11-20 05:25:28,691 INFO L444 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-11-20 05:25:28,691 INFO L440 ceAbstractionStarter]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2019-11-20 05:25:28,692 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 05:25:28,692 INFO L444 ceAbstractionStarter]: For program point L25(lines 25 29) no Hoare annotation was computed. [2019-11-20 05:25:28,692 INFO L444 ceAbstractionStarter]: For program point L58-1(lines 58 63) no Hoare annotation was computed. [2019-11-20 05:25:28,692 INFO L444 ceAbstractionStarter]: For program point L25-1(lines 17 105) no Hoare annotation was computed. [2019-11-20 05:25:28,693 INFO L444 ceAbstractionStarter]: For program point L25-2(lines 25 29) no Hoare annotation was computed. [2019-11-20 05:25:28,693 INFO L440 ceAbstractionStarter]: At program point L108(line 108) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~x (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|))) [2019-11-20 05:25:28,693 INFO L444 ceAbstractionStarter]: For program point L67(lines 67 73) no Hoare annotation was computed. [2019-11-20 05:25:28,693 INFO L444 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-11-20 05:25:28,694 INFO L440 ceAbstractionStarter]: At program point L67-2(lines 65 74) the Hoare annotation is: false [2019-11-20 05:25:28,694 INFO L444 ceAbstractionStarter]: For program point L76(lines 76 78) no Hoare annotation was computed. [2019-11-20 05:25:28,694 INFO L444 ceAbstractionStarter]: For program point L76-2(lines 17 105) no Hoare annotation was computed. [2019-11-20 05:25:28,705 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:25:28,707 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:25:28,710 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:25:28,710 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:25:28,711 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:25:28,712 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:25:28,712 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:25:28,713 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:25:28,713 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:25:28,714 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:25:28,714 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:25:28,715 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:25:28,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:25:28 BoogieIcfgContainer [2019-11-20 05:25:28,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 05:25:28,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:25:28,718 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:25:28,719 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:25:28,719 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:25:12" (3/4) ... [2019-11-20 05:25:28,723 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 05:25:28,737 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 05:25:28,738 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 05:25:28,738 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 05:25:28,817 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2cb2d533-f134-4c81-a095-1aa9a8c9717f/bin/uautomizer/witness.graphml [2019-11-20 05:25:28,819 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:25:28,821 INFO L168 Benchmark]: Toolchain (without parser) took 19068.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 961.8 MB in the beginning and 1.0 GB in the end (delta: -47.5 MB). Peak memory consumption was 112.4 MB. Max. memory is 11.5 GB. [2019-11-20 05:25:28,822 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:25:28,822 INFO L168 Benchmark]: CACSL2BoogieTranslator took 593.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 961.8 MB in the beginning and 1.2 GB in the end (delta: -188.6 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-20 05:25:28,823 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.11 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-11-20 05:25:28,823 INFO L168 Benchmark]: Boogie Preprocessor took 46.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-20 05:25:28,824 INFO L168 Benchmark]: RCFGBuilder took 2441.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-11-20 05:25:28,825 INFO L168 Benchmark]: TraceAbstraction took 15822.14 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: 108.6 MB). Peak memory consumption was 108.6 MB. Max. memory is 11.5 GB. [2019-11-20 05:25:28,826 INFO L168 Benchmark]: Witness Printer took 100.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:25:28,836 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 593.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 961.8 MB in the beginning and 1.2 GB in the end (delta: -188.6 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.11 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2441.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15822.14 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: 108.6 MB). Peak memory consumption was 108.6 MB. Max. memory is 11.5 GB. * Witness Printer took 100.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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: 123]: 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: 110]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 108]: Loop Invariant [2019-11-20 05:25:28,855 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:25:28,856 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:25:28,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:25:28,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && !~fp.eq~FLOAT(\result, \result) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant [2019-11-20 05:25:28,858 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:25:28,859 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:25:28,860 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:25:28,860 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 17]: Loop Invariant [2019-11-20 05:25:28,861 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:25:28,861 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:25:28,862 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 05:25:28,862 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()) && !~fp.eq~FLOAT(\result, \result) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: SAFE, OverallTime: 15.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 111 SDtfs, 53 SDslu, 201 SDs, 0 SdLazy, 38 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 12.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 44 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 8 QuantifiedInterpolants, 4455 SizeOfPredicates, 16 NumberOfNonLiveVariables, 151 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...