./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c -s /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/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 183c064a530646119ada233c15fa830a0c2bc1a1 .................................................................................................................................................................................................................................................................................................. 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_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c -s /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/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 183c064a530646119ada233c15fa830a0c2bc1a1 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:21:35,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:21:35,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:21:35,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:21:35,838 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:21:35,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:21:35,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:21:35,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:21:35,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:21:35,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:21:35,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:21:35,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:21:35,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:21:35,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:21:35,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:21:35,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:21:35,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:21:35,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:21:35,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:21:35,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:21:35,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:21:35,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:21:35,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:21:35,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:21:35,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:21:35,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:21:35,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:21:35,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:21:35,856 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:21:35,857 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:21:35,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:21:35,858 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:21:35,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:21:35,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:21:35,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:21:35,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:21:35,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:21:35,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:21:35,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:21:35,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:21:35,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:21:35,861 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:21:35,871 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:21:35,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:21:35,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:21:35,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:21:35,872 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:21:35,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:21:35,872 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:21:35,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:21:35,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:21:35,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:21:35,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:21:35,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:21:35,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:21:35,873 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:21:35,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:21:35,874 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:21:35,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:21:35,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:21:35,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:21:35,874 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:21:35,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:21:35,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:21:35,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:21:35,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:21:35,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:21:35,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:21:35,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:21:35,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:21:35,875 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:21:35,875 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_707b30bb-bb3b-4ac3-9708-288d551d2d65/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 -> 183c064a530646119ada233c15fa830a0c2bc1a1 [2019-12-07 18:21:35,976 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:21:35,984 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:21:35,986 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:21:35,987 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:21:35,987 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:21:35,987 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2019-12-07 18:21:36,032 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/data/669c3add1/61574b986c5b457f96028292ec83e17e/FLAG693fe0a5c [2019-12-07 18:21:36,452 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:21:36,453 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2019-12-07 18:21:36,458 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/data/669c3add1/61574b986c5b457f96028292ec83e17e/FLAG693fe0a5c [2019-12-07 18:21:36,818 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/data/669c3add1/61574b986c5b457f96028292ec83e17e [2019-12-07 18:21:36,824 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:21:36,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:21:36,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:21:36,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:21:36,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:21:36,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:21:36" (1/1) ... [2019-12-07 18:21:36,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d0a8a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:36, skipping insertion in model container [2019-12-07 18:21:36,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:21:36" (1/1) ... [2019-12-07 18:21:36,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:21:36,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:21:37,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:21:37,015 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:21:37,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:21:37,054 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:21:37,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:37 WrapperNode [2019-12-07 18:21:37,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:21:37,055 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:21:37,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:21:37,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:21:37,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:37" (1/1) ... [2019-12-07 18:21:37,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:37" (1/1) ... [2019-12-07 18:21:37,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:21:37,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:21:37,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:21:37,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:21:37,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:37" (1/1) ... [2019-12-07 18:21:37,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:37" (1/1) ... [2019-12-07 18:21:37,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:37" (1/1) ... [2019-12-07 18:21:37,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:37" (1/1) ... [2019-12-07 18:21:37,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:37" (1/1) ... [2019-12-07 18:21:37,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:37" (1/1) ... [2019-12-07 18:21:37,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:37" (1/1) ... [2019-12-07 18:21:37,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:21:37,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:21:37,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:21:37,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:21:37,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/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 [2019-12-07 18:21:37,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:21:37,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 18:21:37,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:21:37,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 18:21:37,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:21:37,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:21:37,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:21:37,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:21:37,328 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:21:37,328 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 18:21:37,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:21:37 BoogieIcfgContainer [2019-12-07 18:21:37,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:21:37,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:21:37,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:21:37,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:21:37,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:21:36" (1/3) ... [2019-12-07 18:21:37,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b41ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:21:37, skipping insertion in model container [2019-12-07 18:21:37,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:37" (2/3) ... [2019-12-07 18:21:37,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b41ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:21:37, skipping insertion in model container [2019-12-07 18:21:37,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:21:37" (3/3) ... [2019-12-07 18:21:37,334 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0921.c [2019-12-07 18:21:37,340 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:21:37,344 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:21:37,351 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:21:37,367 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:21:37,367 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:21:37,367 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:21:37,367 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:21:37,368 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:21:37,368 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:21:37,368 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:21:37,368 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:21:37,377 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-12-07 18:21:37,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 18:21:37,381 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:21:37,381 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:21:37,382 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:21:37,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:21:37,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1030195787, now seen corresponding path program 1 times [2019-12-07 18:21:37,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:21:37,391 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172807306] [2019-12-07 18:21:37,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:21:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:21:37,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:21:37,471 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172807306] [2019-12-07 18:21:37,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:21:37,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:21:37,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119249785] [2019-12-07 18:21:37,474 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:21:37,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:21:37,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:21:37,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:21:37,484 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2019-12-07 18:21:37,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:21:37,496 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2019-12-07 18:21:37,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:21:37,497 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 18:21:37,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:21:37,504 INFO L225 Difference]: With dead ends: 56 [2019-12-07 18:21:37,504 INFO L226 Difference]: Without dead ends: 26 [2019-12-07 18:21:37,506 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 [2019-12-07 18:21:37,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-12-07 18:21:37,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-12-07 18:21:37,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 18:21:37,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2019-12-07 18:21:37,528 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 10 [2019-12-07 18:21:37,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:21:37,529 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2019-12-07 18:21:37,529 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:21:37,529 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2019-12-07 18:21:37,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:21:37,529 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:21:37,529 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:21:37,530 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:21:37,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:21:37,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1305111410, now seen corresponding path program 1 times [2019-12-07 18:21:37,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:21:37,530 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074273437] [2019-12-07 18:21:37,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:21:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:21:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:21:37,595 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:21:37,595 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:21:37,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:21:37 BoogieIcfgContainer [2019-12-07 18:21:37,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:21:37,618 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:21:37,618 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:21:37,618 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:21:37,618 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:21:37" (3/4) ... [2019-12-07 18:21:37,621 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:21:37,621 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:21:37,622 INFO L168 Benchmark]: Toolchain (without parser) took 797.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 936.7 MB in the beginning and 1.1 GB in the end (delta: -121.6 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:21:37,623 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 954.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:21:37,623 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 936.7 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:21:37,623 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.78 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:21:37,624 INFO L168 Benchmark]: Boogie Preprocessor took 24.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:21:37,624 INFO L168 Benchmark]: RCFGBuilder took 219.11 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:21:37,625 INFO L168 Benchmark]: TraceAbstraction took 288.00 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: 36.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:21:37,625 INFO L168 Benchmark]: Witness Printer took 3.06 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. [2019-12-07 18:21:37,627 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 954.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 227.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 936.7 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.78 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 219.11 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 288.00 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: 36.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.06 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: 140]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 127, overapproximation of bitwiseOr at line 59, overapproximation of someBinaryArithmeticDOUBLEoperation at line 60. Possible FailurePath: [L32-L41] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L43] static const double zero = 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L135] double x = 0.0 / 0.0; [L46] double hfsq, f, s, z, R, w, t1, t2, dk; [L47] __int32_t k, hx, i, j; [L48] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L51] ieee_double_shape_type ew_u; [L52] ew_u.value = (x) [L53] EXPR ew_u.parts.msw [L53] (hx) = ew_u.parts.msw [L54] EXPR ew_u.parts.lsw [L54] (lx) = ew_u.parts.lsw [L57] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L58] COND TRUE hx < 0x00100000 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L59] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L60] return -two54_log / zero; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L136] double res = __ieee754_log(x); [L127] return x != x; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L139] COND TRUE !isnan_double(res) [L140] __VERIFIER_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 39 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=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 18:21:39,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:21:39,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:21:39,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:21:39,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:21:39,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:21:39,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:21:39,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:21:39,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:21:39,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:21:39,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:21:39,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:21:39,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:21:39,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:21:39,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:21:39,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:21:39,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:21:39,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:21:39,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:21:39,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:21:39,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:21:39,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:21:39,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:21:39,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:21:39,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:21:39,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:21:39,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:21:39,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:21:39,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:21:39,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:21:39,037 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:21:39,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:21:39,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:21:39,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:21:39,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:21:39,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:21:39,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:21:39,041 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:21:39,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:21:39,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:21:39,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:21:39,043 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 18:21:39,056 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:21:39,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:21:39,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:21:39,057 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:21:39,057 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:21:39,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:21:39,057 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:21:39,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:21:39,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:21:39,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:21:39,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:21:39,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:21:39,058 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 18:21:39,058 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 18:21:39,059 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:21:39,059 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:21:39,059 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:21:39,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:21:39,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:21:39,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:21:39,060 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:21:39,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:21:39,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:21:39,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:21:39,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:21:39,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:21:39,061 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 18:21:39,061 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 18:21:39,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:21:39,061 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:21:39,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 18:21:39,061 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_707b30bb-bb3b-4ac3-9708-288d551d2d65/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 -> 183c064a530646119ada233c15fa830a0c2bc1a1 [2019-12-07 18:21:39,247 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:21:39,255 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:21:39,257 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:21:39,258 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:21:39,259 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:21:39,259 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2019-12-07 18:21:39,297 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/data/3a94a4a80/320c0be1c8f4469fad2cabf463a1ed3b/FLAG13a8337e1 [2019-12-07 18:21:39,718 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:21:39,718 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2019-12-07 18:21:39,723 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/data/3a94a4a80/320c0be1c8f4469fad2cabf463a1ed3b/FLAG13a8337e1 [2019-12-07 18:21:40,089 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/data/3a94a4a80/320c0be1c8f4469fad2cabf463a1ed3b [2019-12-07 18:21:40,094 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:21:40,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:21:40,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:21:40,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:21:40,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:21:40,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:21:40" (1/1) ... [2019-12-07 18:21:40,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54590536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:40, skipping insertion in model container [2019-12-07 18:21:40,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:21:40" (1/1) ... [2019-12-07 18:21:40,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:21:40,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:21:40,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:21:40,243 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:21:40,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:21:40,320 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:21:40,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:40 WrapperNode [2019-12-07 18:21:40,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:21:40,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:21:40,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:21:40,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:21:40,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:40" (1/1) ... [2019-12-07 18:21:40,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:40" (1/1) ... [2019-12-07 18:21:40,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:21:40,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:21:40,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:21:40,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:21:40,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:40" (1/1) ... [2019-12-07 18:21:40,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:40" (1/1) ... [2019-12-07 18:21:40,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:40" (1/1) ... [2019-12-07 18:21:40,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:40" (1/1) ... [2019-12-07 18:21:40,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:40" (1/1) ... [2019-12-07 18:21:40,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:40" (1/1) ... [2019-12-07 18:21:40,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:40" (1/1) ... [2019-12-07 18:21:40,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:21:40,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:21:40,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:21:40,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:21:40,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/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 [2019-12-07 18:21:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 18:21:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 18:21:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:21:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 18:21:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:21:40,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:21:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 18:21:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:22:03,012 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:22:03,012 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 18:22:03,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:22:03 BoogieIcfgContainer [2019-12-07 18:22:03,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:22:03,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:22:03,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:22:03,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:22:03,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:21:40" (1/3) ... [2019-12-07 18:22:03,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7957b476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:22:03, skipping insertion in model container [2019-12-07 18:22:03,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:40" (2/3) ... [2019-12-07 18:22:03,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7957b476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:22:03, skipping insertion in model container [2019-12-07 18:22:03,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:22:03" (3/3) ... [2019-12-07 18:22:03,018 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0921.c [2019-12-07 18:22:03,023 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:22:03,028 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:22:03,035 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:22:03,048 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:22:03,049 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:22:03,049 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:22:03,049 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:22:03,049 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:22:03,049 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:22:03,049 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:22:03,049 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:22:03,058 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-12-07 18:22:03,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 18:22:03,062 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:22:03,062 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:22:03,063 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:22:03,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:22:03,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1030195787, now seen corresponding path program 1 times [2019-12-07 18:22:03,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:22:03,074 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114193765] [2019-12-07 18:22:03,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/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 [2019-12-07 18:22:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:22:03,888 INFO L264 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 18:22:03,892 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:22:03,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:22:03,902 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:22:03,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:22:03,906 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114193765] [2019-12-07 18:22:03,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:22:03,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 18:22:03,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576249477] [2019-12-07 18:22:03,912 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:22:03,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:22:03,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:22:03,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:22:03,927 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2019-12-07 18:22:03,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:22:03,941 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2019-12-07 18:22:03,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:22:03,942 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 18:22:03,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:22:03,949 INFO L225 Difference]: With dead ends: 56 [2019-12-07 18:22:03,949 INFO L226 Difference]: Without dead ends: 26 [2019-12-07 18:22:03,951 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 [2019-12-07 18:22:03,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-12-07 18:22:03,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-12-07 18:22:03,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 18:22:03,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2019-12-07 18:22:03,975 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 10 [2019-12-07 18:22:03,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:22:03,975 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2019-12-07 18:22:03,975 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:22:03,975 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2019-12-07 18:22:03,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:22:03,976 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:22:03,976 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:22:04,177 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 18:22:04,177 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:22:04,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:22:04,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1305111410, now seen corresponding path program 1 times [2019-12-07 18:22:04,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:22:04,180 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [139437974] [2019-12-07 18:22:04,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/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 [2019-12-07 18:22:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:22:04,996 INFO L264 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 18:22:04,999 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:22:05,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:22:05,067 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:22:05,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:22:05,137 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [139437974] [2019-12-07 18:22:05,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:22:05,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 18:22:05,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226065845] [2019-12-07 18:22:05,139 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:22:05,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:22:05,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:22:05,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:22:05,139 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand 6 states. [2019-12-07 18:22:11,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:22:11,171 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2019-12-07 18:22:11,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:22:11,843 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-12-07 18:22:11,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:22:11,844 INFO L225 Difference]: With dead ends: 41 [2019-12-07 18:22:11,844 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 18:22:11,845 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:22:11,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 18:22:11,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 26. [2019-12-07 18:22:11,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 18:22:11,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2019-12-07 18:22:11,850 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 35 transitions. Word has length 11 [2019-12-07 18:22:11,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:22:11,850 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 35 transitions. [2019-12-07 18:22:11,850 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:22:11,850 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2019-12-07 18:22:11,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:22:11,851 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:22:11,851 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:22:12,052 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 18:22:12,052 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:22:12,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:22:12,053 INFO L82 PathProgramCache]: Analyzing trace with hash -594923761, now seen corresponding path program 1 times [2019-12-07 18:22:12,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:22:12,054 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068655119] [2019-12-07 18:22:12,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/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 [2019-12-07 18:22:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:22:12,219 INFO L264 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 18:22:12,220 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:22:12,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:22:12,285 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:22:13,186 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2019-12-07 18:22:13,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:22:13,196 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068655119] [2019-12-07 18:22:13,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:22:13,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 18:22:13,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834535416] [2019-12-07 18:22:13,197 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 18:22:13,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:22:13,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 18:22:13,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:22:13,198 INFO L87 Difference]: Start difference. First operand 26 states and 35 transitions. Second operand 10 states. [2019-12-07 18:22:58,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:22:58,656 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2019-12-07 18:22:58,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:22:58,656 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2019-12-07 18:22:58,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:22:58,657 INFO L225 Difference]: With dead ends: 36 [2019-12-07 18:22:58,657 INFO L226 Difference]: Without dead ends: 31 [2019-12-07 18:22:58,658 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-12-07 18:22:58,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-07 18:22:58,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2019-12-07 18:22:58,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 18:22:58,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-12-07 18:22:58,661 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 11 [2019-12-07 18:22:58,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:22:58,662 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-12-07 18:22:58,662 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 18:22:58,662 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2019-12-07 18:22:58,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 18:22:58,662 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:22:58,662 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:22:58,863 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 18:22:58,864 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:22:58,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:22:58,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1813045648, now seen corresponding path program 1 times [2019-12-07 18:22:58,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:22:58,867 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85729898] [2019-12-07 18:22:58,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 18:22:59,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:22:59,709 INFO L264 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 18:22:59,711 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:22:59,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:22:59,774 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:23:28,181 WARN L192 SmtUtils]: Spent 4.75 s on a formula simplification that was a NOOP. DAG size: 11 [2019-12-07 18:23:28,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:23:28,201 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85729898] [2019-12-07 18:23:28,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:23:28,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 18:23:28,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010201793] [2019-12-07 18:23:28,201 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 18:23:28,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:23:28,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 18:23:28,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=64, Unknown=4, NotChecked=0, Total=90 [2019-12-07 18:23:28,202 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand 10 states. [2019-12-07 18:24:20,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:24:20,143 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2019-12-07 18:24:20,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:24:20,144 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-12-07 18:24:20,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:24:20,144 INFO L225 Difference]: With dead ends: 36 [2019-12-07 18:24:20,144 INFO L226 Difference]: Without dead ends: 31 [2019-12-07 18:24:20,145 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 28.9s TimeCoverageRelationStatistics Valid=49, Invalid=103, Unknown=4, NotChecked=0, Total=156 [2019-12-07 18:24:20,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-07 18:24:20,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2019-12-07 18:24:20,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 18:24:20,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2019-12-07 18:24:20,148 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 12 [2019-12-07 18:24:20,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:24:20,148 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2019-12-07 18:24:20,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 18:24:20,149 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2019-12-07 18:24:20,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 18:24:20,149 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:24:20,149 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:24:20,350 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 18:24:20,351 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:24:20,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:24:20,352 INFO L82 PathProgramCache]: Analyzing trace with hash 464451163, now seen corresponding path program 1 times [2019-12-07 18:24:20,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:24:20,353 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866250824] [2019-12-07 18:24:20,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 18:24:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:24:20,557 INFO L264 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 18:24:20,558 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:24:20,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:24:20,642 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:24:24,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:24:24,726 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [866250824] [2019-12-07 18:24:24,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:24:24,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 18:24:24,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833503451] [2019-12-07 18:24:24,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 18:24:24,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:24:24,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:24:24,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=35, Unknown=2, NotChecked=0, Total=56 [2019-12-07 18:24:24,728 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand 8 states. [2019-12-07 18:24:28,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:24:28,965 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2019-12-07 18:24:29,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:24:29,737 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-12-07 18:24:29,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:24:29,738 INFO L225 Difference]: With dead ends: 47 [2019-12-07 18:24:29,738 INFO L226 Difference]: Without dead ends: 31 [2019-12-07 18:24:29,739 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=41, Invalid=67, Unknown=2, NotChecked=0, Total=110 [2019-12-07 18:24:29,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-07 18:24:29,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2019-12-07 18:24:29,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 18:24:29,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2019-12-07 18:24:29,744 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 17 [2019-12-07 18:24:29,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:24:29,745 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2019-12-07 18:24:29,745 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 18:24:29,745 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2019-12-07 18:24:29,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-07 18:24:29,746 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:24:29,746 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:24:29,946 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 18:24:29,947 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:24:29,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:24:29,948 INFO L82 PathProgramCache]: Analyzing trace with hash -2124593878, now seen corresponding path program 1 times [2019-12-07 18:24:29,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:24:29,949 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1316382461] [2019-12-07 18:24:29,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 18:24:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:24:30,324 INFO L264 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 18:24:30,325 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:24:30,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:24:30,406 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:24:30,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:24:30,488 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1316382461] [2019-12-07 18:24:30,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:24:30,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 18:24:30,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157839576] [2019-12-07 18:24:30,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 18:24:30,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:24:30,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:24:30,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:24:30,489 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand 8 states. [2019-12-07 18:24:30,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:24:30,619 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2019-12-07 18:24:30,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:24:30,620 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2019-12-07 18:24:30,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:24:30,620 INFO L225 Difference]: With dead ends: 26 [2019-12-07 18:24:30,620 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 18:24:30,620 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:24:30,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 18:24:30,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 18:24:30,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 18:24:30,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:24:30,621 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2019-12-07 18:24:30,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:24:30,621 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:24:30,621 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 18:24:30,621 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:24:30,621 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 18:24:30,821 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 18:24:30,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 18:24:31,011 INFO L242 CegarLoopResult]: At program point L122(lines 45 124) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_log_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= ULTIMATE.start___ieee754_log_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 18:24:31,011 INFO L246 CegarLoopResult]: For program point L85(lines 85 92) no Hoare annotation was computed. [2019-12-07 18:24:31,011 INFO L246 CegarLoopResult]: For program point L139(lines 139 142) no Hoare annotation was computed. [2019-12-07 18:24:31,011 INFO L246 CegarLoopResult]: For program point L65-1(lines 65 69) no Hoare annotation was computed. [2019-12-07 18:24:31,011 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 18:24:31,011 INFO L242 CegarLoopResult]: At program point L65-2(lines 65 69) the Hoare annotation is: false [2019-12-07 18:24:31,011 INFO L242 CegarLoopResult]: At program point L127(line 127) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_log_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= ULTIMATE.start___ieee754_log_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2019-12-07 18:24:31,011 INFO L246 CegarLoopResult]: For program point L94(lines 94 99) no Hoare annotation was computed. [2019-12-07 18:24:31,011 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 18:24:31,011 INFO L246 CegarLoopResult]: For program point L61(lines 61 62) no Hoare annotation was computed. [2019-12-07 18:24:31,011 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 18:24:31,011 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 140) no Hoare annotation was computed. [2019-12-07 18:24:31,011 INFO L246 CegarLoopResult]: For program point L119(lines 119 122) no Hoare annotation was computed. [2019-12-07 18:24:31,012 INFO L246 CegarLoopResult]: For program point L86(lines 86 91) no Hoare annotation was computed. [2019-12-07 18:24:31,012 INFO L249 CegarLoopResult]: At program point L144(lines 129 145) the Hoare annotation is: true [2019-12-07 18:24:31,012 INFO L246 CegarLoopResult]: For program point L111(lines 111 123) no Hoare annotation was computed. [2019-12-07 18:24:31,012 INFO L246 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2019-12-07 18:24:31,012 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 18:24:31,012 INFO L246 CegarLoopResult]: For program point L58(lines 58 70) no Hoare annotation was computed. [2019-12-07 18:24:31,012 INFO L246 CegarLoopResult]: For program point L58-1(lines 45 124) no Hoare annotation was computed. [2019-12-07 18:24:31,012 INFO L246 CegarLoopResult]: For program point L50-1(lines 50 55) no Hoare annotation was computed. [2019-12-07 18:24:31,012 INFO L242 CegarLoopResult]: At program point L50-2(lines 50 55) the Hoare annotation is: (and (= (_ +zero 11 53) ~zero~0) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start___ieee754_log_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 18:24:31,012 INFO L246 CegarLoopResult]: For program point L50-3(lines 50 55) no Hoare annotation was computed. [2019-12-07 18:24:31,012 INFO L246 CegarLoopResult]: For program point L59(lines 59 60) no Hoare annotation was computed. [2019-12-07 18:24:31,013 INFO L246 CegarLoopResult]: For program point L84(lines 84 100) no Hoare annotation was computed. [2019-12-07 18:24:31,013 INFO L246 CegarLoopResult]: For program point L113(lines 113 117) no Hoare annotation was computed. [2019-12-07 18:24:31,013 INFO L246 CegarLoopResult]: For program point L76-1(lines 76 81) no Hoare annotation was computed. [2019-12-07 18:24:31,013 INFO L242 CegarLoopResult]: At program point L76-2(lines 76 81) the Hoare annotation is: false [2019-12-07 18:24:31,013 INFO L246 CegarLoopResult]: For program point L76-3(lines 76 81) no Hoare annotation was computed. [2019-12-07 18:24:31,020 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,021 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,021 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,021 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,023 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:24:31,023 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:24:31,025 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,025 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,025 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,025 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,025 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:24:31,025 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:24:31,026 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,026 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,027 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,027 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,027 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:24:31,027 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:24:31,027 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,028 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,028 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,028 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,028 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:24:31,028 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:24:31,029 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:24:31,029 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,029 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:24:31,030 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:24:31,030 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,030 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:24:31,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:24:31 BoogieIcfgContainer [2019-12-07 18:24:31,032 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:24:31,032 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:24:31,032 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:24:31,032 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:24:31,033 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:22:03" (3/4) ... [2019-12-07 18:24:31,035 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 18:24:31,044 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-12-07 18:24:31,044 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 18:24:31,044 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 18:24:31,063 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~Pluszero~LONGDOUBLE() == zero && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 18:24:31,063 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 18:24:31,064 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result [2019-12-07 18:24:31,094 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_707b30bb-bb3b-4ac3-9708-288d551d2d65/bin/uautomizer/witness.graphml [2019-12-07 18:24:31,095 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:24:31,096 INFO L168 Benchmark]: Toolchain (without parser) took 171000.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 952.4 MB in the beginning and 852.3 MB in the end (delta: 100.1 MB). Peak memory consumption was 242.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:24:31,096 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:24:31,096 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -184.8 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:24:31,096 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:24:31,097 INFO L168 Benchmark]: Boogie Preprocessor took 25.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:24:31,097 INFO L168 Benchmark]: RCFGBuilder took 22629.59 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: 36.8 MB). Peak memory consumption was 36.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:24:31,097 INFO L168 Benchmark]: TraceAbstraction took 148018.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 858.7 MB in the end (delta: 235.2 MB). Peak memory consumption was 235.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:24:31,097 INFO L168 Benchmark]: Witness Printer took 62.59 ms. Allocated memory is still 1.2 GB. Free memory was 858.7 MB in the beginning and 852.3 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:24:31,099 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 224.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -184.8 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 22629.59 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: 36.8 MB). Peak memory consumption was 36.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 148018.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 858.7 MB in the end (delta: 235.2 MB). Peak memory consumption was 235.2 MB. Max. memory is 11.5 GB. * Witness Printer took 62.59 ms. Allocated memory is still 1.2 GB. Free memory was 858.7 MB in the beginning and 852.3 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 140]: 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: 127]: Loop Invariant [2019-12-07 18:24:31,102 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,102 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,103 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,103 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,103 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:24:31,103 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:24:31,103 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,103 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,103 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,104 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,104 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:24:31,104 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((\result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 45]: Loop Invariant [2019-12-07 18:24:31,104 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,104 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,104 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,105 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,105 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:24:31,105 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:24:31,105 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,105 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,105 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,105 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,106 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:24:31,106 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (\result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant [2019-12-07 18:24:31,106 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:24:31,106 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,106 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:24:31,107 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:24:31,107 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:24:31,107 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~Pluszero~LONGDOUBLE() == zero && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. Result: SAFE, OverallTime: 147.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 109.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 135 SDtfs, 145 SDslu, 359 SDs, 0 SdLazy, 182 SolverSat, 24 SolverUnsat, 40 SolverUnknown, 0 SolverNotchecked, 100.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 164 GetRequests, 116 SyntacticMatches, 4 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 34.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 6 MinimizatonAttempts, 25 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 12 NumberOfFragments, 64 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 67 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 34.1s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 152 ConstructedInterpolants, 23 QuantifiedInterpolants, 12230 SizeOfPredicates, 41 NumberOfNonLiveVariables, 315 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...