./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/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 bc7b929d20445456da87d92c4566355380c50982 ............................................................................................................................................................................................................................................................................................................. 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_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/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 bc7b929d20445456da87d92c4566355380c50982 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-16 00:13:10,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:13:10,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:13:10,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:13:10,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:13:10,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:13:10,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:13:10,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:13:10,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:13:10,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:13:10,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:13:10,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:13:10,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:13:10,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:13:10,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:13:10,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:13:10,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:13:10,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:13:10,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:13:10,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:13:10,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:13:10,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:13:10,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:13:10,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:13:10,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:13:10,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:13:10,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:13:10,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:13:10,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:13:10,945 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:13:10,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:13:10,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:13:10,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:13:10,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:13:10,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:13:10,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:13:10,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:13:10,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:13:10,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:13:10,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:13:10,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:13:10,954 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:13:10,968 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:13:10,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:13:10,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:13:10,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:13:10,970 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:13:10,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:13:10,970 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:13:10,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:13:10,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:13:10,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:13:10,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:13:10,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:13:10,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:13:10,972 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:13:10,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:13:10,972 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:13:10,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:13:10,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:13:10,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:13:10,973 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:13:10,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:13:10,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:13:10,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:13:10,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:13:10,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:13:10,975 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:13:10,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:13:10,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:13:10,975 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_3048221b-7301-4661-937d-fd0e3ae745ea/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 -> bc7b929d20445456da87d92c4566355380c50982 [2019-11-16 00:13:11,001 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:13:11,011 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:13:11,014 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:13:11,016 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:13:11,016 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:13:11,017 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2019-11-16 00:13:11,067 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/data/81c89359e/a09cd913dfdd4f9c86a142cffcf57499/FLAG76bf7252e [2019-11-16 00:13:11,498 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:13:11,499 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2019-11-16 00:13:11,508 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/data/81c89359e/a09cd913dfdd4f9c86a142cffcf57499/FLAG76bf7252e [2019-11-16 00:13:11,527 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/data/81c89359e/a09cd913dfdd4f9c86a142cffcf57499 [2019-11-16 00:13:11,530 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:13:11,531 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:13:11,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:13:11,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:13:11,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:13:11,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:13:11" (1/1) ... [2019-11-16 00:13:11,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@405d99ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:11, skipping insertion in model container [2019-11-16 00:13:11,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:13:11" (1/1) ... [2019-11-16 00:13:11,548 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:13:11,584 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:13:11,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:13:11,935 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:13:12,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:13:12,056 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:13:12,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:12 WrapperNode [2019-11-16 00:13:12,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:13:12,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:13:12,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:13:12,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:13:12,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:12" (1/1) ... [2019-11-16 00:13:12,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:12" (1/1) ... [2019-11-16 00:13:12,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:13:12,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:13:12,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:13:12,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:13:12,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:12" (1/1) ... [2019-11-16 00:13:12,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:12" (1/1) ... [2019-11-16 00:13:12,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:12" (1/1) ... [2019-11-16 00:13:12,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:12" (1/1) ... [2019-11-16 00:13:12,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:12" (1/1) ... [2019-11-16 00:13:12,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:12" (1/1) ... [2019-11-16 00:13:12,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:12" (1/1) ... [2019-11-16 00:13:12,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:13:12,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:13:12,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:13:12,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:13:12,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:13:12,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:13:12,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-16 00:13:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-16 00:13:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-16 00:13:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:13:12,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:13:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-16 00:13:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-16 00:13:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:13:12,658 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:13:12,660 INFO L284 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-16 00:13:12,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:13:12 BoogieIcfgContainer [2019-11-16 00:13:12,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:13:12,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:13:12,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:13:12,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:13:12,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:13:11" (1/3) ... [2019-11-16 00:13:12,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c0b4cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:13:12, skipping insertion in model container [2019-11-16 00:13:12,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:12" (2/3) ... [2019-11-16 00:13:12,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c0b4cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:13:12, skipping insertion in model container [2019-11-16 00:13:12,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:13:12" (3/3) ... [2019-11-16 00:13:12,668 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620a.c [2019-11-16 00:13:12,676 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:13:12,683 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:13:12,694 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:13:12,716 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:13:12,716 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:13:12,716 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:13:12,716 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:13:12,716 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:13:12,716 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:13:12,717 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:13:12,717 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:13:12,731 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-16 00:13:12,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-16 00:13:12,738 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:13:12,739 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:13:12,740 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:13:12,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:13:12,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2019-11-16 00:13:12,753 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:13:12,753 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774191339] [2019-11-16 00:13:12,753 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:13:12,753 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:13:12,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:13:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:13:12,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:13:12,871 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774191339] [2019-11-16 00:13:12,872 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:13:12,872 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-16 00:13:12,872 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095101339] [2019-11-16 00:13:12,875 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-16 00:13:12,876 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:13:12,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-16 00:13:12,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:13:12,887 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-16 00:13:12,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:13:12,903 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2019-11-16 00:13:12,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-16 00:13:12,905 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-16 00:13:12,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:13:12,915 INFO L225 Difference]: With dead ends: 72 [2019-11-16 00:13:12,915 INFO L226 Difference]: Without dead ends: 34 [2019-11-16 00:13:12,918 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:13:12,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-16 00:13:12,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-16 00:13:12,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-16 00:13:12,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2019-11-16 00:13:12,953 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 10 [2019-11-16 00:13:12,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:13:12,953 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2019-11-16 00:13:12,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-16 00:13:12,953 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2019-11-16 00:13:12,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-16 00:13:12,954 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:13:12,954 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:13:12,955 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:13:12,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:13:12,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1304878016, now seen corresponding path program 1 times [2019-11-16 00:13:12,955 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:13:12,955 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097284200] [2019-11-16 00:13:12,955 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:13:12,956 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:13:12,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:13:13,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:13:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:13:13,150 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:13:13,150 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:13:13,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:13:13 BoogieIcfgContainer [2019-11-16 00:13:13,210 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:13:13,210 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:13:13,210 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:13:13,211 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:13:13,211 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:13:12" (3/4) ... [2019-11-16 00:13:13,214 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-16 00:13:13,214 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:13:13,216 INFO L168 Benchmark]: Toolchain (without parser) took 1684.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -111.4 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:13:13,217 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:13:13,218 INFO L168 Benchmark]: CACSL2BoogieTranslator took 526.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -183.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:13:13,218 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.44 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: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:13:13,219 INFO L168 Benchmark]: Boogie Preprocessor took 44.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:13:13,219 INFO L168 Benchmark]: RCFGBuilder took 493.54 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: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:13:13,220 INFO L168 Benchmark]: TraceAbstraction took 547.40 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: 34.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:13:13,220 INFO L168 Benchmark]: Witness Printer took 4.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:13:13,224 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 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 526.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -183.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 63.44 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: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.44 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 493.54 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: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 547.40 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: 34.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.26 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: 142]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 141, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 62, overapproximation of someBinaryArithmeticFLOAToperation at line 65. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L137] float x = 0.0f; [L54] float w, s1, s2, z; [L55] __int32_t ix, hx, id; VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L58] ieee_float_shape_type gf_u; [L59] gf_u.value = (x) [L60] EXPR gf_u.word [L60] (hx) = gf_u.word [L62] ix = hx & 0x7fffffff VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L63] COND TRUE ix >= 0x50800000 VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L64] COND TRUE ((ix) > 0x7f800000L) [L65] return x + x; VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L138] float res = atan_float(x); [L141] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L141] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L142] __VERIFIER_error() VAL [aT_atan={1:0}, atanhi_atan={-2:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 48 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=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-16 00:13:15,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:13:15,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:13:15,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:13:15,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:13:15,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:13:15,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:13:15,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:13:15,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:13:15,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:13:15,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:13:15,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:13:15,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:13:15,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:13:15,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:13:15,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:13:15,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:13:15,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:13:15,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:13:15,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:13:15,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:13:15,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:13:15,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:13:15,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:13:15,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:13:15,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:13:15,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:13:15,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:13:15,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:13:15,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:13:15,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:13:15,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:13:15,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:13:15,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:13:15,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:13:15,406 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:13:15,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:13:15,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:13:15,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:13:15,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:13:15,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:13:15,410 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-16 00:13:15,424 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:13:15,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:13:15,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:13:15,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:13:15,426 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:13:15,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:13:15,426 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:13:15,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:13:15,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:13:15,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:13:15,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:13:15,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:13:15,427 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-16 00:13:15,428 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-16 00:13:15,428 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:13:15,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:13:15,428 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:13:15,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:13:15,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:13:15,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:13:15,429 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:13:15,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:13:15,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:13:15,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:13:15,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:13:15,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:13:15,431 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-16 00:13:15,431 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-16 00:13:15,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:13:15,431 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-16 00:13:15,432 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_3048221b-7301-4661-937d-fd0e3ae745ea/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 -> bc7b929d20445456da87d92c4566355380c50982 [2019-11-16 00:13:15,462 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:13:15,473 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:13:15,476 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:13:15,477 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:13:15,478 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:13:15,478 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2019-11-16 00:13:15,535 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/data/fd6ec8ac3/2ee069bd1fee478c8f17384dcbd0af86/FLAGcf06623ea [2019-11-16 00:13:15,918 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:13:15,919 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2019-11-16 00:13:15,925 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/data/fd6ec8ac3/2ee069bd1fee478c8f17384dcbd0af86/FLAGcf06623ea [2019-11-16 00:13:16,285 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/data/fd6ec8ac3/2ee069bd1fee478c8f17384dcbd0af86 [2019-11-16 00:13:16,287 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:13:16,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:13:16,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:13:16,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:13:16,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:13:16,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:13:16" (1/1) ... [2019-11-16 00:13:16,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@496478c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:16, skipping insertion in model container [2019-11-16 00:13:16,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:13:16" (1/1) ... [2019-11-16 00:13:16,303 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:13:16,326 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:13:16,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:13:16,651 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:13:16,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:13:16,822 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:13:16,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:16 WrapperNode [2019-11-16 00:13:16,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:13:16,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:13:16,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:13:16,824 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:13:16,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:16" (1/1) ... [2019-11-16 00:13:16,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:16" (1/1) ... [2019-11-16 00:13:16,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:13:16,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:13:16,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:13:16,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:13:16,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:16" (1/1) ... [2019-11-16 00:13:16,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:16" (1/1) ... [2019-11-16 00:13:16,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:16" (1/1) ... [2019-11-16 00:13:16,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:16" (1/1) ... [2019-11-16 00:13:16,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:16" (1/1) ... [2019-11-16 00:13:16,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:16" (1/1) ... [2019-11-16 00:13:16,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:16" (1/1) ... [2019-11-16 00:13:16,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:13:16,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:13:16,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:13:16,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:13:16,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:13:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-16 00:13:17,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:13:17,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-16 00:13:17,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-16 00:13:17,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:13:17,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:13:17,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-16 00:13:17,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-16 00:13:17,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:13:25,989 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:13:25,990 INFO L284 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-16 00:13:25,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:13:25 BoogieIcfgContainer [2019-11-16 00:13:25,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:13:25,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:13:25,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:13:25,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:13:25,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:13:16" (1/3) ... [2019-11-16 00:13:25,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d22b779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:13:25, skipping insertion in model container [2019-11-16 00:13:25,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:13:16" (2/3) ... [2019-11-16 00:13:25,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d22b779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:13:25, skipping insertion in model container [2019-11-16 00:13:25,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:13:25" (3/3) ... [2019-11-16 00:13:25,997 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620a.c [2019-11-16 00:13:26,005 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:13:26,010 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:13:26,020 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:13:26,041 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:13:26,041 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:13:26,041 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:13:26,042 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:13:26,042 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:13:26,042 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:13:26,042 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:13:26,043 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:13:26,055 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-16 00:13:26,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-16 00:13:26,062 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:13:26,062 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:13:26,064 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:13:26,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:13:26,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2019-11-16 00:13:26,084 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:13:26,084 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443156744] [2019-11-16 00:13:26,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-16 00:13:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:13:26,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-16 00:13:26,318 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:13:26,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:13:26,334 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:13:26,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:13:26,340 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [443156744] [2019-11-16 00:13:26,341 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:13:26,341 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-16 00:13:26,342 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954250096] [2019-11-16 00:13:26,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-16 00:13:26,346 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:13:26,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-16 00:13:26,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:13:26,362 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-16 00:13:26,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:13:26,388 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2019-11-16 00:13:26,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-16 00:13:26,390 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-16 00:13:26,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:13:26,401 INFO L225 Difference]: With dead ends: 72 [2019-11-16 00:13:26,402 INFO L226 Difference]: Without dead ends: 34 [2019-11-16 00:13:26,407 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:13:26,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-16 00:13:26,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-16 00:13:26,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-16 00:13:26,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2019-11-16 00:13:26,448 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 10 [2019-11-16 00:13:26,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:13:26,449 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2019-11-16 00:13:26,449 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-16 00:13:26,449 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2019-11-16 00:13:26,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-16 00:13:26,450 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:13:26,450 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:13:26,669 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-16 00:13:26,669 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:13:26,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:13:26,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1304878016, now seen corresponding path program 1 times [2019-11-16 00:13:26,670 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:13:26,670 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1399147770] [2019-11-16 00:13:26,671 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-16 00:13:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:13:26,829 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-16 00:13:26,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:13:26,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:13:26,894 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:13:26,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:13:26,970 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1399147770] [2019-11-16 00:13:26,970 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:13:26,970 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-16 00:13:26,970 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494484309] [2019-11-16 00:13:26,972 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-16 00:13:26,972 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:13:26,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-16 00:13:26,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-16 00:13:26,973 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2019-11-16 00:13:32,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:13:32,731 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2019-11-16 00:13:32,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-16 00:13:32,733 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-16 00:13:32,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:13:32,734 INFO L225 Difference]: With dead ends: 57 [2019-11-16 00:13:32,735 INFO L226 Difference]: Without dead ends: 32 [2019-11-16 00:13:32,735 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-16 00:13:32,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-16 00:13:32,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2019-11-16 00:13:32,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-16 00:13:32,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-11-16 00:13:32,739 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 11 [2019-11-16 00:13:32,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:13:32,740 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-11-16 00:13:32,740 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-16 00:13:32,740 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-11-16 00:13:32,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-16 00:13:32,741 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:13:32,741 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:13:32,955 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-16 00:13:32,956 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:13:32,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:13:32,956 INFO L82 PathProgramCache]: Analyzing trace with hash -413875709, now seen corresponding path program 1 times [2019-11-16 00:13:32,957 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:13:32,957 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753032822] [2019-11-16 00:13:32,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-16 00:13:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:13:33,138 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-16 00:13:33,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:13:33,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:13:33,176 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:13:33,178 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:13:33,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:13:33,234 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753032822] [2019-11-16 00:13:33,234 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:13:33,234 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-16 00:13:33,234 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587901082] [2019-11-16 00:13:33,235 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-16 00:13:33,235 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:13:33,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-16 00:13:33,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-16 00:13:33,236 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2019-11-16 00:13:38,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:13:38,168 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-11-16 00:13:38,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-16 00:13:38,171 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-16 00:13:38,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:13:38,171 INFO L225 Difference]: With dead ends: 35 [2019-11-16 00:13:38,172 INFO L226 Difference]: Without dead ends: 32 [2019-11-16 00:13:38,172 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-16 00:13:38,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-16 00:13:38,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2019-11-16 00:13:38,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-16 00:13:38,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-11-16 00:13:38,177 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2019-11-16 00:13:38,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:13:38,178 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-11-16 00:13:38,178 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-16 00:13:38,178 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-11-16 00:13:38,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-16 00:13:38,179 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:13:38,179 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:13:38,389 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-16 00:13:38,389 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:13:38,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:13:38,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1848532469, now seen corresponding path program 1 times [2019-11-16 00:13:38,390 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:13:38,390 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949641401] [2019-11-16 00:13:38,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-16 00:13:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:13:39,775 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-16 00:13:39,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:13:39,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:13:39,807 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:13:40,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:13:40,215 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949641401] [2019-11-16 00:13:40,215 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:13:40,215 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-16 00:13:40,216 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286197642] [2019-11-16 00:13:40,216 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-16 00:13:40,216 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:13:40,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-16 00:13:40,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-16 00:13:40,217 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 6 states. [2019-11-16 00:13:40,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:13:40,351 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2019-11-16 00:13:40,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-16 00:13:40,357 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-16 00:13:40,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:13:40,358 INFO L225 Difference]: With dead ends: 32 [2019-11-16 00:13:40,358 INFO L226 Difference]: Without dead ends: 18 [2019-11-16 00:13:40,358 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-16 00:13:40,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-16 00:13:40,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-16 00:13:40,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-16 00:13:40,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-11-16 00:13:40,361 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2019-11-16 00:13:40,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:13:40,362 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-11-16 00:13:40,362 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-16 00:13:40,362 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-11-16 00:13:40,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-16 00:13:40,362 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:13:40,362 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:13:40,569 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-16 00:13:40,569 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:13:40,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:13:40,569 INFO L82 PathProgramCache]: Analyzing trace with hash 712330328, now seen corresponding path program 1 times [2019-11-16 00:13:40,569 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:13:40,570 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763833157] [2019-11-16 00:13:40,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/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 [2019-11-16 00:13:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:13:40,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-16 00:13:40,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:13:40,781 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:13:40,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:13:40,818 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:13:40,820 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:13:41,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:13:41,007 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1763833157] [2019-11-16 00:13:41,007 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:13:41,007 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2019-11-16 00:13:41,008 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217940189] [2019-11-16 00:13:41,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-16 00:13:41,008 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:13:41,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-16 00:13:41,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-11-16 00:13:41,009 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 14 states. [2019-11-16 00:13:41,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:13:41,229 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-11-16 00:13:41,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-16 00:13:41,230 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2019-11-16 00:13:41,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:13:41,230 INFO L225 Difference]: With dead ends: 18 [2019-11-16 00:13:41,230 INFO L226 Difference]: Without dead ends: 0 [2019-11-16 00:13:41,231 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2019-11-16 00:13:41,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-16 00:13:41,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-16 00:13:41,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-16 00:13:41,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-16 00:13:41,232 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-16 00:13:41,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:13:41,232 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:13:41,232 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-16 00:13:41,232 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-16 00:13:41,232 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-16 00:13:41,433 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-16 00:13:41,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-16 00:13:41,636 INFO L439 ceAbstractionStarter]: At program point L126(lines 117 127) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short29| (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (= (_ +zero 8 24) |ULTIMATE.start_atan_float_#res|) (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1))) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) [2019-11-16 00:13:41,636 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-16 00:13:41,637 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-16 00:13:41,637 INFO L443 ceAbstractionStarter]: For program point L120-1(lines 120 124) no Hoare annotation was computed. [2019-11-16 00:13:41,637 INFO L439 ceAbstractionStarter]: At program point L120-2(lines 120 124) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short29| (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= (_ +zero 8 24) |ULTIMATE.start_atan_float_#res|) (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) [2019-11-16 00:13:41,637 INFO L443 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2019-11-16 00:13:41,637 INFO L443 ceAbstractionStarter]: For program point L120-3(lines 120 124) no Hoare annotation was computed. [2019-11-16 00:13:41,637 INFO L443 ceAbstractionStarter]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2019-11-16 00:13:41,637 INFO L443 ceAbstractionStarter]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2019-11-16 00:13:41,638 INFO L443 ceAbstractionStarter]: For program point L79(lines 79 95) no Hoare annotation was computed. [2019-11-16 00:13:41,638 INFO L443 ceAbstractionStarter]: For program point L71(lines 71 96) no Hoare annotation was computed. [2019-11-16 00:13:41,638 INFO L443 ceAbstractionStarter]: For program point L63(lines 63 70) no Hoare annotation was computed. [2019-11-16 00:13:41,638 INFO L443 ceAbstractionStarter]: For program point L88(lines 88 94) no Hoare annotation was computed. [2019-11-16 00:13:41,638 INFO L443 ceAbstractionStarter]: For program point L88-2(lines 71 96) no Hoare annotation was computed. [2019-11-16 00:13:41,638 INFO L446 ceAbstractionStarter]: At program point L146(lines 129 147) the Hoare annotation is: true [2019-11-16 00:13:41,638 INFO L443 ceAbstractionStarter]: For program point L113(line 113) no Hoare annotation was computed. [2019-11-16 00:13:41,638 INFO L443 ceAbstractionStarter]: For program point L80(lines 80 86) no Hoare annotation was computed. [2019-11-16 00:13:41,639 INFO L443 ceAbstractionStarter]: For program point L113-2(line 113) no Hoare annotation was computed. [2019-11-16 00:13:41,639 INFO L439 ceAbstractionStarter]: At program point L113-3(lines 53 115) the Hoare annotation is: (and (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_atan_float_#res|) (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) [2019-11-16 00:13:41,639 INFO L443 ceAbstractionStarter]: For program point L72(lines 72 75) no Hoare annotation was computed. [2019-11-16 00:13:41,639 INFO L443 ceAbstractionStarter]: For program point L72-2(lines 72 75) no Hoare annotation was computed. [2019-11-16 00:13:41,639 INFO L443 ceAbstractionStarter]: For program point L64(lines 64 65) no Hoare annotation was computed. [2019-11-16 00:13:41,639 INFO L443 ceAbstractionStarter]: For program point L73(lines 73 74) no Hoare annotation was computed. [2019-11-16 00:13:41,639 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-16 00:13:41,640 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2019-11-16 00:13:41,640 INFO L443 ceAbstractionStarter]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2019-11-16 00:13:41,640 INFO L439 ceAbstractionStarter]: At program point L57-2(lines 57 61) the Hoare annotation is: (and (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) [2019-11-16 00:13:41,640 INFO L443 ceAbstractionStarter]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2019-11-16 00:13:41,640 INFO L443 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2019-11-16 00:13:41,640 INFO L439 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: false [2019-11-16 00:13:41,640 INFO L443 ceAbstractionStarter]: For program point L66(lines 66 69) no Hoare annotation was computed. [2019-11-16 00:13:41,643 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-16 00:13:41,644 INFO L443 ceAbstractionStarter]: For program point L141(line 141) no Hoare annotation was computed. [2019-11-16 00:13:41,644 INFO L443 ceAbstractionStarter]: For program point L141-2(lines 141 144) no Hoare annotation was computed. [2019-11-16 00:13:41,644 INFO L439 ceAbstractionStarter]: At program point L26(lines 14 27) the Hoare annotation is: false [2019-11-16 00:13:41,644 INFO L443 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2019-11-16 00:13:41,644 INFO L443 ceAbstractionStarter]: For program point L109(lines 109 114) no Hoare annotation was computed. [2019-11-16 00:13:41,658 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,659 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,659 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,660 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,665 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,665 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,665 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,666 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,667 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,667 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,667 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,667 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,668 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,668 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,669 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,669 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,669 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,670 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,670 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,670 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,671 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,671 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,671 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,672 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,676 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,677 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,677 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,677 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,678 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,678 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,678 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,679 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:13:41 BoogieIcfgContainer [2019-11-16 00:13:41,682 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:13:41,683 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:13:41,683 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:13:41,683 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:13:41,684 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:13:25" (3/4) ... [2019-11-16 00:13:41,689 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-16 00:13:41,700 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-16 00:13:41,701 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-16 00:13:41,727 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == \result) && one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan [2019-11-16 00:13:41,728 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((aux-res == 0.0f && __signbit_float(res) == 0-aux && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == \result) && one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan [2019-11-16 00:13:41,729 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((aux-res == 0.0f && __signbit_float(res) == 0-aux && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && ~Pluszero~LONGDOUBLE() == \result) && one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan [2019-11-16 00:13:41,780 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3048221b-7301-4661-937d-fd0e3ae745ea/bin/uautomizer/witness.graphml [2019-11-16 00:13:41,780 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:13:41,782 INFO L168 Benchmark]: Toolchain (without parser) took 25492.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 951.0 MB in the beginning and 897.6 MB in the end (delta: 53.4 MB). Peak memory consumption was 205.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:13:41,782 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:13:41,783 INFO L168 Benchmark]: CACSL2BoogieTranslator took 533.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:13:41,783 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:13:41,783 INFO L168 Benchmark]: Boogie Preprocessor took 89.60 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:13:41,784 INFO L168 Benchmark]: RCFGBuilder took 9000.79 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: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:13:41,784 INFO L168 Benchmark]: TraceAbstraction took 15690.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 904.1 MB in the end (delta: 196.8 MB). Peak memory consumption was 196.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:13:41,784 INFO L168 Benchmark]: Witness Printer took 97.21 ms. Allocated memory is still 1.2 GB. Free memory was 904.1 MB in the beginning and 897.6 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:13:41,787 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 533.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 76.65 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 89.60 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 9000.79 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: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15690.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 904.1 MB in the end (delta: 196.8 MB). Peak memory consumption was 196.8 MB. Max. memory is 11.5 GB. * Witness Printer took 97.21 ms. Allocated memory is still 1.2 GB. Free memory was 904.1 MB in the beginning and 897.6 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 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 142]: 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: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 120]: Loop Invariant [2019-11-16 00:13:41,795 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,795 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,795 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,796 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,798 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,799 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,799 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,799 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((aux-res == 0.0f && __signbit_float(res) == 0-aux && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == \result) && one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan - InvariantResult [Line: 57]: Loop Invariant [2019-11-16 00:13:41,800 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,800 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,801 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,801 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,801 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,801 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,802 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,802 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~Pluszero~LONGDOUBLE() && one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant [2019-11-16 00:13:41,803 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,804 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,805 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,805 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,808 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,809 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,810 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,810 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((x == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == \result) && one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan - InvariantResult [Line: 117]: Loop Invariant [2019-11-16 00:13:41,811 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,811 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,811 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,812 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,813 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,813 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,813 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:13:41,813 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((((aux-res == 0.0f && __signbit_float(res) == 0-aux && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && ~Pluszero~LONGDOUBLE() == \result) && one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: SAFE, OverallTime: 15.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 111 SDtfs, 161 SDslu, 202 SDs, 0 SdLazy, 85 SolverSat, 12 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 10.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 110 HoareAnnotationTreeSize, 7 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 124 ConstructedInterpolants, 12 QuantifiedInterpolants, 8549 SizeOfPredicates, 27 NumberOfNonLiveVariables, 443 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...