./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1012a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1012a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/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 8843c970c14fead2ee32d56c7ad1a4a87598c42c ................................................................................................................................................................................................................................................................................... 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_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1012a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/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 8843c970c14fead2ee32d56c7ad1a4a87598c42c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 11:35:05,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:35:05,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:35:05,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:35:05,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:35:05,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:35:05,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:35:05,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:35:05,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:35:05,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:35:05,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:35:05,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:35:05,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:35:05,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:35:05,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:35:05,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:35:05,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:35:05,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:35:05,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:35:05,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:35:05,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:35:05,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:35:05,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:35:05,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:35:05,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:35:05,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:35:05,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:35:05,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:35:05,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:35:05,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:35:05,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:35:05,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:35:05,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:35:05,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:35:05,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:35:05,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:35:05,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:35:05,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:35:05,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:35:05,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:35:05,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:35:05,872 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 11:35:05,881 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:35:05,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:35:05,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:35:05,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:35:05,883 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:35:05,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:35:05,883 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:35:05,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:35:05,883 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:35:05,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:35:05,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:35:05,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:35:05,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:35:05,884 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:35:05,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:35:05,884 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:35:05,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:35:05,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:35:05,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:35:05,884 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:35:05,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:35:05,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:35:05,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:35:05,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:35:05,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:35:05,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 11:35:05,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:35:05,885 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:35:05,885 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:35:05,885 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_ff978e2a-38f9-4184-a685-f9ccb485aa89/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 -> 8843c970c14fead2ee32d56c7ad1a4a87598c42c [2019-12-07 11:35:05,989 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:35:05,999 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:35:06,002 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:35:06,003 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:35:06,004 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:35:06,004 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1012a.c [2019-12-07 11:35:06,052 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/data/921641699/fcb85dd7397f4201ba7dbb6a695009ee/FLAG480d5a6f8 [2019-12-07 11:35:06,437 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:35:06,437 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/sv-benchmarks/c/float-newlib/float_req_bl_1012a.c [2019-12-07 11:35:06,441 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/data/921641699/fcb85dd7397f4201ba7dbb6a695009ee/FLAG480d5a6f8 [2019-12-07 11:35:06,820 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/data/921641699/fcb85dd7397f4201ba7dbb6a695009ee [2019-12-07 11:35:06,822 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:35:06,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:35:06,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:35:06,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:35:06,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:35:06,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:35:06" (1/1) ... [2019-12-07 11:35:06,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13cc694b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:06, skipping insertion in model container [2019-12-07 11:35:06,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:35:06" (1/1) ... [2019-12-07 11:35:06,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:35:06,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:35:06,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:35:06,951 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:35:06,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:35:07,010 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:35:07,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:07 WrapperNode [2019-12-07 11:35:07,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:35:07,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:35:07,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:35:07,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:35:07,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:07" (1/1) ... [2019-12-07 11:35:07,022 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:07" (1/1) ... [2019-12-07 11:35:07,035 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:35:07,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:35:07,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:35:07,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:35:07,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:07" (1/1) ... [2019-12-07 11:35:07,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:07" (1/1) ... [2019-12-07 11:35:07,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:07" (1/1) ... [2019-12-07 11:35:07,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:07" (1/1) ... [2019-12-07 11:35:07,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:07" (1/1) ... [2019-12-07 11:35:07,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:07" (1/1) ... [2019-12-07 11:35:07,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:07" (1/1) ... [2019-12-07 11:35:07,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:35:07,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:35:07,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:35:07,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:35:07,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:35:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 11:35:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 11:35:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 11:35:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:35:07,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:35:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 11:35:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:35:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 11:35:07,225 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:35:07,226 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 11:35:07,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:35:07 BoogieIcfgContainer [2019-12-07 11:35:07,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:35:07,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:35:07,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:35:07,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:35:07,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:35:06" (1/3) ... [2019-12-07 11:35:07,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5c75cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:35:07, skipping insertion in model container [2019-12-07 11:35:07,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:07" (2/3) ... [2019-12-07 11:35:07,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5c75cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:35:07, skipping insertion in model container [2019-12-07 11:35:07,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:35:07" (3/3) ... [2019-12-07 11:35:07,231 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1012a.c [2019-12-07 11:35:07,237 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:35:07,241 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 11:35:07,249 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 11:35:07,263 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:35:07,263 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:35:07,263 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:35:07,263 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:35:07,263 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:35:07,264 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:35:07,264 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:35:07,264 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:35:07,273 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-12-07 11:35:07,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 11:35:07,277 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:35:07,278 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:35:07,278 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:35:07,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:35:07,282 INFO L82 PathProgramCache]: Analyzing trace with hash -969083750, now seen corresponding path program 1 times [2019-12-07 11:35:07,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:35:07,288 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192897872] [2019-12-07 11:35:07,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:35:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:35:07,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:35:07,362 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192897872] [2019-12-07 11:35:07,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:35:07,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 11:35:07,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946749832] [2019-12-07 11:35:07,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 11:35:07,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:35:07,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 11:35:07,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:35:07,376 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2019-12-07 11:35:07,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:35:07,387 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2019-12-07 11:35:07,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 11:35:07,388 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 11:35:07,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:35:07,393 INFO L225 Difference]: With dead ends: 34 [2019-12-07 11:35:07,394 INFO L226 Difference]: Without dead ends: 15 [2019-12-07 11:35:07,396 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:35:07,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-07 11:35:07,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-07 11:35:07,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 11:35:07,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2019-12-07 11:35:07,417 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 11 [2019-12-07 11:35:07,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:35:07,417 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2019-12-07 11:35:07,417 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 11:35:07,417 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2019-12-07 11:35:07,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 11:35:07,418 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:35:07,418 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:35:07,418 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:35:07,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:35:07,418 INFO L82 PathProgramCache]: Analyzing trace with hash 657368916, now seen corresponding path program 1 times [2019-12-07 11:35:07,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:35:07,418 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776022880] [2019-12-07 11:35:07,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:35:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:35:07,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:35:07,491 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:35:07,491 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:35:07,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:35:07 BoogieIcfgContainer [2019-12-07 11:35:07,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:35:07,508 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:35:07,508 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:35:07,508 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:35:07,509 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:35:07" (3/4) ... [2019-12-07 11:35:07,511 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 11:35:07,511 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:35:07,512 INFO L168 Benchmark]: Toolchain (without parser) took 688.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 80.2 MB). Free memory was 944.8 MB in the beginning and 1.0 GB in the end (delta: -72.9 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:35:07,513 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:35:07,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 186.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 80.2 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -132.9 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:35:07,514 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.33 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:35:07,514 INFO L168 Benchmark]: Boogie Preprocessor took 17.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:35:07,514 INFO L168 Benchmark]: RCFGBuilder took 173.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:35:07,515 INFO L168 Benchmark]: TraceAbstraction took 280.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2019-12-07 11:35:07,515 INFO L168 Benchmark]: Witness Printer took 2.92 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:35:07,517 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 186.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 80.2 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -132.9 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.33 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 173.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 280.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.92 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 51]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 46, overapproximation of bitwiseAnd at line 34. Possible FailurePath: [L46] float x = 1.0f / 0.0f; [L12] __uint32_t ix; [L14] ieee_float_shape_type gf_u; [L15] gf_u.value = (x) [L16] EXPR gf_u.word [L16] (ix) = gf_u.word [L19] ieee_float_shape_type sf_u; [L20] sf_u.word = (ix & 0x7fffffff) [L21] EXPR sf_u.value [L21] (x) = sf_u.value [L23] return x; [L47] float res = fabs_float(x); [L28] __int32_t ix; [L30] ieee_float_shape_type gf_u; [L31] gf_u.value = (x) [L32] EXPR gf_u.word [L32] (ix) = gf_u.word [L34] ix &= 0x7fffffff [L35] return ((ix) == 0x7f800000L); [L50] COND TRUE !isinf_float(res) [L51] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 17 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=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 11:35:08,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:35:08,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:35:08,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:35:08,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:35:08,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:35:08,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:35:08,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:35:08,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:35:08,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:35:08,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:35:08,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:35:08,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:35:08,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:35:08,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:35:08,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:35:08,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:35:08,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:35:08,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:35:08,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:35:08,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:35:08,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:35:08,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:35:08,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:35:08,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:35:08,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:35:08,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:35:08,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:35:08,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:35:08,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:35:08,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:35:08,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:35:08,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:35:08,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:35:08,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:35:08,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:35:08,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:35:08,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:35:08,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:35:08,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:35:08,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:35:08,918 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 11:35:08,928 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:35:08,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:35:08,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:35:08,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:35:08,929 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:35:08,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:35:08,930 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:35:08,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:35:08,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:35:08,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:35:08,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:35:08,930 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:35:08,930 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 11:35:08,931 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 11:35:08,931 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:35:08,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:35:08,931 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:35:08,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:35:08,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:35:08,931 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:35:08,932 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:35:08,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:35:08,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:35:08,932 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:35:08,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:35:08,932 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:35:08,932 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 11:35:08,933 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 11:35:08,933 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:35:08,933 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:35:08,933 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:35:08,933 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_ff978e2a-38f9-4184-a685-f9ccb485aa89/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 -> 8843c970c14fead2ee32d56c7ad1a4a87598c42c [2019-12-07 11:35:09,100 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:35:09,110 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:35:09,113 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:35:09,114 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:35:09,115 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:35:09,115 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1012a.c [2019-12-07 11:35:09,160 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/data/2a30b650e/39975b16dc984280a17cd924a9ffa5e1/FLAG16c5f3999 [2019-12-07 11:35:09,587 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:35:09,588 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/sv-benchmarks/c/float-newlib/float_req_bl_1012a.c [2019-12-07 11:35:09,592 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/data/2a30b650e/39975b16dc984280a17cd924a9ffa5e1/FLAG16c5f3999 [2019-12-07 11:35:09,601 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/data/2a30b650e/39975b16dc984280a17cd924a9ffa5e1 [2019-12-07 11:35:09,603 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:35:09,604 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:35:09,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:35:09,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:35:09,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:35:09,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:35:09" (1/1) ... [2019-12-07 11:35:09,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692431c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:09, skipping insertion in model container [2019-12-07 11:35:09,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:35:09" (1/1) ... [2019-12-07 11:35:09,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:35:09,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:35:09,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:35:09,733 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:35:09,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:35:09,764 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:35:09,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:09 WrapperNode [2019-12-07 11:35:09,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:35:09,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:35:09,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:35:09,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:35:09,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:09" (1/1) ... [2019-12-07 11:35:09,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:09" (1/1) ... [2019-12-07 11:35:09,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:35:09,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:35:09,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:35:09,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:35:09,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:09" (1/1) ... [2019-12-07 11:35:09,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:09" (1/1) ... [2019-12-07 11:35:09,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:09" (1/1) ... [2019-12-07 11:35:09,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:09" (1/1) ... [2019-12-07 11:35:09,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:09" (1/1) ... [2019-12-07 11:35:09,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:09" (1/1) ... [2019-12-07 11:35:09,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:09" (1/1) ... [2019-12-07 11:35:09,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:35:09,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:35:09,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:35:09,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:35:09,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:35:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:35:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-12-07 11:35:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 11:35:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:35:09,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:35:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 11:35:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 11:35:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 11:35:10,028 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:35:10,028 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 11:35:10,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:35:10 BoogieIcfgContainer [2019-12-07 11:35:10,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:35:10,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:35:10,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:35:10,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:35:10,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:35:09" (1/3) ... [2019-12-07 11:35:10,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3481b55a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:35:10, skipping insertion in model container [2019-12-07 11:35:10,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:35:09" (2/3) ... [2019-12-07 11:35:10,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3481b55a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:35:10, skipping insertion in model container [2019-12-07 11:35:10,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:35:10" (3/3) ... [2019-12-07 11:35:10,034 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1012a.c [2019-12-07 11:35:10,040 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:35:10,044 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 11:35:10,052 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 11:35:10,065 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:35:10,066 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:35:10,066 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:35:10,066 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:35:10,066 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:35:10,066 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:35:10,066 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:35:10,066 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:35:10,074 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-12-07 11:35:10,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 11:35:10,078 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:35:10,079 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:35:10,079 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:35:10,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:35:10,083 INFO L82 PathProgramCache]: Analyzing trace with hash -969083750, now seen corresponding path program 1 times [2019-12-07 11:35:10,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:35:10,090 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966170455] [2019-12-07 11:35:10,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 11:35:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:35:10,141 INFO L264 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 11:35:10,144 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:35:10,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:35:10,153 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:35:10,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:35:10,156 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [966170455] [2019-12-07 11:35:10,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:35:10,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 11:35:10,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219685381] [2019-12-07 11:35:10,160 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 11:35:10,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:35:10,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 11:35:10,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:35:10,170 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2019-12-07 11:35:10,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:35:10,181 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2019-12-07 11:35:10,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 11:35:10,182 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 11:35:10,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:35:10,188 INFO L225 Difference]: With dead ends: 34 [2019-12-07 11:35:10,188 INFO L226 Difference]: Without dead ends: 15 [2019-12-07 11:35:10,190 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:35:10,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-07 11:35:10,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-07 11:35:10,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 11:35:10,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2019-12-07 11:35:10,219 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 11 [2019-12-07 11:35:10,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:35:10,219 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2019-12-07 11:35:10,220 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 11:35:10,220 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2019-12-07 11:35:10,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 11:35:10,220 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:35:10,220 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:35:10,421 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 11:35:10,422 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:35:10,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:35:10,423 INFO L82 PathProgramCache]: Analyzing trace with hash 657368916, now seen corresponding path program 1 times [2019-12-07 11:35:10,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:35:10,425 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [93455834] [2019-12-07 11:35:10,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 11:35:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:35:10,523 INFO L264 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 18 conjunts are in the unsatisfiable core [2019-12-07 11:35:10,526 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:35:10,677 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:35:10,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:35:10,732 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:35:12,979 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_1_3 (_ BitVec 32))) (or (not (= (let ((.cse0 (bvand (_ bv2147483647 32) c_ULTIMATE.start_fabs_float_~ix~0))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) v_skolemized_v_prenex_1_3) ((_ extract 30 23) v_skolemized_v_prenex_1_3) ((_ extract 22 0) v_skolemized_v_prenex_1_3)))) (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_skolemized_v_prenex_1_3)))) is different from false [2019-12-07 11:35:14,996 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_2_3 (_ BitVec 32)) (v_skolemized_v_prenex_1_3 (_ BitVec 32))) (or (= (_ bv2139095040 32) (bvand (_ bv2147483647 32) v_skolemized_v_prenex_1_3)) (not (= (let ((.cse0 (bvand (_ bv2147483647 32) v_skolemized_v_prenex_2_3))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) v_skolemized_v_prenex_1_3) ((_ extract 30 23) v_skolemized_v_prenex_1_3) ((_ extract 22 0) v_skolemized_v_prenex_1_3)))) (not (= c_ULTIMATE.start_fabs_float_~x (fp ((_ extract 31 31) v_skolemized_v_prenex_2_3) ((_ extract 30 23) v_skolemized_v_prenex_2_3) ((_ extract 22 0) v_skolemized_v_prenex_2_3)))))) is different from false [2019-12-07 11:35:15,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:35:15,005 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [93455834] [2019-12-07 11:35:15,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:35:15,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 10] imperfect sequences [] total 17 [2019-12-07 11:35:15,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969666215] [2019-12-07 11:35:15,006 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-12-07 11:35:15,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:35:15,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-12-07 11:35:15,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=179, Unknown=2, NotChecked=54, Total=272 [2019-12-07 11:35:15,007 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 17 states. [2019-12-07 11:35:17,100 WARN L192 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 34 DAG size of output: 8 [2019-12-07 11:35:19,221 WARN L192 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 34 DAG size of output: 16 [2019-12-07 11:35:19,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:35:19,663 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2019-12-07 11:35:19,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 11:35:19,663 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 14 [2019-12-07 11:35:19,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:35:19,664 INFO L225 Difference]: With dead ends: 15 [2019-12-07 11:35:19,665 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 11:35:19,666 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=123, Invalid=345, Unknown=2, NotChecked=82, Total=552 [2019-12-07 11:35:19,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 11:35:19,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 11:35:19,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 11:35:19,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 11:35:19,667 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-12-07 11:35:19,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:35:19,668 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 11:35:19,668 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-12-07 11:35:19,668 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 11:35:19,668 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 11:35:19,869 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 11:35:19,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 11:35:20,039 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 11:35:20,039 INFO L246 CegarLoopResult]: For program point L29-1(lines 29 33) no Hoare annotation was computed. [2019-12-07 11:35:20,040 INFO L242 CegarLoopResult]: At program point L29-2(lines 29 33) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_fabs_float_~x)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) |ULTIMATE.start_fabs_float_#res|)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_fabs_float_~ix~0)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_isinf_float_~x))) [2019-12-07 11:35:20,040 INFO L246 CegarLoopResult]: For program point L29-3(lines 29 33) no Hoare annotation was computed. [2019-12-07 11:35:20,040 INFO L242 CegarLoopResult]: At program point L23(lines 11 24) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_fabs_float_~x)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) |ULTIMATE.start_fabs_float_#res|)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_fabs_float_~ix~0))))) [2019-12-07 11:35:20,040 INFO L246 CegarLoopResult]: For program point L50(lines 50 53) no Hoare annotation was computed. [2019-12-07 11:35:20,040 INFO L246 CegarLoopResult]: For program point L13-1(lines 13 17) no Hoare annotation was computed. [2019-12-07 11:35:20,040 INFO L242 CegarLoopResult]: At program point L13-2(lines 13 17) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_fabs_float_~x)) [2019-12-07 11:35:20,040 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 11:35:20,041 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 11:35:20,041 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 11:35:20,041 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 51) no Hoare annotation was computed. [2019-12-07 11:35:20,041 INFO L249 CegarLoopResult]: At program point L55(lines 38 56) the Hoare annotation is: true [2019-12-07 11:35:20,041 INFO L246 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2019-12-07 11:35:20,041 INFO L246 CegarLoopResult]: For program point L18(lines 18 22) no Hoare annotation was computed. [2019-12-07 11:35:20,041 INFO L246 CegarLoopResult]: For program point L18-1(lines 11 24) no Hoare annotation was computed. [2019-12-07 11:35:20,041 INFO L246 CegarLoopResult]: For program point L18-2(lines 18 22) no Hoare annotation was computed. [2019-12-07 11:35:20,042 INFO L242 CegarLoopResult]: At program point L35(lines 27 36) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_fabs_float_~x)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) |ULTIMATE.start_fabs_float_#res|)) (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_isinf_float_~ix~1) ((_ extract 30 23) ULTIMATE.start_isinf_float_~ix~1) ((_ extract 22 0) ULTIMATE.start_isinf_float_~ix~1)) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_fabs_float_~ix~0)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_isinf_float_~x)) (= (bvadd |ULTIMATE.start_isinf_float_#res| (_ bv4294967295 32)) (_ bv0 32))) [2019-12-07 11:35:20,046 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,051 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,051 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,053 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,053 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,053 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,053 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,053 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,053 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,054 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,054 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,054 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,054 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,055 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,055 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,055 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,055 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,055 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,055 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,058 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,058 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,058 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,059 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,060 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,060 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,060 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,060 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,061 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,061 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,061 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,061 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,061 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,062 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,062 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,063 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,063 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,063 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,063 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,064 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,064 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,064 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,064 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:35:20 BoogieIcfgContainer [2019-12-07 11:35:20,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:35:20,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:35:20,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:35:20,067 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:35:20,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:35:10" (3/4) ... [2019-12-07 11:35:20,071 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 11:35:20,080 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 11:35:20,081 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 11:35:20,081 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 11:35:20,100 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == x) [2019-12-07 11:35:20,107 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ff978e2a-38f9-4184-a685-f9ccb485aa89/bin/uautomizer/witness.graphml [2019-12-07 11:35:20,107 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:35:20,108 INFO L168 Benchmark]: Toolchain (without parser) took 10504.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 952.4 MB in the beginning and 982.2 MB in the end (delta: -29.9 MB). Peak memory consumption was 112.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:35:20,108 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:35:20,109 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.71 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:35:20,109 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -196.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2019-12-07 11:35:20,110 INFO L168 Benchmark]: Boogie Preprocessor took 20.56 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:35:20,110 INFO L168 Benchmark]: RCFGBuilder took 188.61 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: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:35:20,110 INFO L168 Benchmark]: TraceAbstraction took 10037.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 988.9 MB in the end (delta: 124.9 MB). Peak memory consumption was 124.9 MB. Max. memory is 11.5 GB. [2019-12-07 11:35:20,111 INFO L168 Benchmark]: Witness Printer took 39.96 ms. Allocated memory is still 1.2 GB. Free memory was 988.9 MB in the beginning and 982.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:35:20,113 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 160.71 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -196.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.56 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 188.61 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: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10037.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 988.9 MB in the end (delta: 124.9 MB). Peak memory consumption was 124.9 MB. Max. memory is 11.5 GB. * Witness Printer took 39.96 ms. Allocated memory is still 1.2 GB. Free memory was 988.9 MB in the beginning and 982.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 51]: 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: 13]: Loop Invariant [2019-12-07 11:35:20,118 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,119 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,119 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,119 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 29]: Loop Invariant [2019-12-07 11:35:20,119 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,119 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,119 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == x) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == \result)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 11]: Loop Invariant [2019-12-07 11:35:20,122 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,122 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,122 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,122 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,122 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,122 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == x) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == \result)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0])) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant [2019-12-07 11:35:20,124 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,124 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,124 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,124 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,125 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,125 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,125 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,125 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,125 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,125 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,126 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,126 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,126 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,126 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,126 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,126 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,126 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,126 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,127 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 11:35:20,127 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == x) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == \result)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == x)) && ~bvadd64(\result, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Result: SAFE, OverallTime: 9.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 22 SDtfs, 24 SDslu, 32 SDs, 0 SdLazy, 36 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 150 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 46 ConstructedInterpolants, 16 QuantifiedInterpolants, 4152 SizeOfPredicates, 15 NumberOfNonLiveVariables, 71 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...