./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/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 8571d6e044ba86c3b82c24f6ff451bf497f2aedf ............................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/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 8571d6e044ba86c3b82c24f6ff451bf497f2aedf ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 16:59:13,875 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 16:59:13,876 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 16:59:13,882 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 16:59:13,882 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 16:59:13,883 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 16:59:13,883 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 16:59:13,884 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 16:59:13,885 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 16:59:13,885 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 16:59:13,886 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 16:59:13,886 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 16:59:13,887 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 16:59:13,887 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 16:59:13,888 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 16:59:13,888 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 16:59:13,888 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 16:59:13,889 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 16:59:13,890 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 16:59:13,891 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 16:59:13,892 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 16:59:13,892 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 16:59:13,893 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 16:59:13,894 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 16:59:13,894 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 16:59:13,894 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 16:59:13,895 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 16:59:13,895 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 16:59:13,896 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 16:59:13,896 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 16:59:13,896 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 16:59:13,897 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 16:59:13,897 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 16:59:13,897 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 16:59:13,897 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 16:59:13,898 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 16:59:13,898 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-08 16:59:13,905 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 16:59:13,905 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 16:59:13,906 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 16:59:13,906 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 16:59:13,906 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 16:59:13,906 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 16:59:13,906 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 16:59:13,907 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 16:59:13,907 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 16:59:13,907 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 16:59:13,907 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 16:59:13,907 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 16:59:13,907 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 16:59:13,907 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 16:59:13,907 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 16:59:13,907 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 16:59:13,907 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 16:59:13,907 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 16:59:13,908 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 16:59:13,908 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 16:59:13,908 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 16:59:13,908 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 16:59:13,908 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 16:59:13,908 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 16:59:13,908 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 16:59:13,908 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 16:59:13,908 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 16:59:13,908 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 16:59:13,908 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 16:59:13,908 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 16:59:13,909 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/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 -> 8571d6e044ba86c3b82c24f6ff451bf497f2aedf [2018-12-08 16:59:13,926 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 16:59:13,936 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 16:59:13,938 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 16:59:13,939 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 16:59:13,940 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 16:59:13,940 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i [2018-12-08 16:59:13,978 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/data/994225d62/f9cc1d5b86804efbb03af0160d930c89/FLAG264cb67c3 [2018-12-08 16:59:14,450 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 16:59:14,451 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i [2018-12-08 16:59:14,454 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/data/994225d62/f9cc1d5b86804efbb03af0160d930c89/FLAG264cb67c3 [2018-12-08 16:59:14,962 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/data/994225d62/f9cc1d5b86804efbb03af0160d930c89 [2018-12-08 16:59:14,963 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 16:59:14,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 16:59:14,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 16:59:14,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 16:59:14,967 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 16:59:14,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 04:59:14" (1/1) ... [2018-12-08 16:59:14,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b368404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:14, skipping insertion in model container [2018-12-08 16:59:14,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 04:59:14" (1/1) ... [2018-12-08 16:59:14,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 16:59:14,981 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 16:59:15,066 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 16:59:15,070 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 16:59:15,081 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 16:59:15,089 INFO L195 MainTranslator]: Completed translation [2018-12-08 16:59:15,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:15 WrapperNode [2018-12-08 16:59:15,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 16:59:15,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 16:59:15,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 16:59:15,090 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 16:59:15,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:15" (1/1) ... [2018-12-08 16:59:15,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:15" (1/1) ... [2018-12-08 16:59:15,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 16:59:15,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 16:59:15,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 16:59:15,102 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 16:59:15,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:15" (1/1) ... [2018-12-08 16:59:15,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:15" (1/1) ... [2018-12-08 16:59:15,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:15" (1/1) ... [2018-12-08 16:59:15,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:15" (1/1) ... [2018-12-08 16:59:15,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:15" (1/1) ... [2018-12-08 16:59:15,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:15" (1/1) ... [2018-12-08 16:59:15,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:15" (1/1) ... [2018-12-08 16:59:15,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 16:59:15,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 16:59:15,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 16:59:15,142 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 16:59:15,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/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 [2018-12-08 16:59:15,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 16:59:15,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 16:59:15,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 16:59:15,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 16:59:15,175 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 16:59:15,175 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 16:59:15,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-08 16:59:15,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-08 16:59:15,251 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 16:59:15,251 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-08 16:59:15,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:59:15 BoogieIcfgContainer [2018-12-08 16:59:15,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 16:59:15,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 16:59:15,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 16:59:15,254 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 16:59:15,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 04:59:14" (1/3) ... [2018-12-08 16:59:15,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383a1501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 04:59:15, skipping insertion in model container [2018-12-08 16:59:15,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:15" (2/3) ... [2018-12-08 16:59:15,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383a1501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 04:59:15, skipping insertion in model container [2018-12-08 16:59:15,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:59:15" (3/3) ... [2018-12-08 16:59:15,256 INFO L112 eAbstractionObserver]: Analyzing ICFG Double_div_true-unreach-call.i [2018-12-08 16:59:15,262 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 16:59:15,266 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 16:59:15,276 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 16:59:15,293 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 16:59:15,294 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 16:59:15,294 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 16:59:15,294 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 16:59:15,294 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 16:59:15,294 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 16:59:15,294 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 16:59:15,294 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 16:59:15,294 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 16:59:15,305 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-12-08 16:59:15,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 16:59:15,308 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 16:59:15,308 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 16:59:15,310 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 16:59:15,313 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:59:15,313 INFO L82 PathProgramCache]: Analyzing trace with hash -14991171, now seen corresponding path program 1 times [2018-12-08 16:59:15,314 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 16:59:15,315 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 16:59:15,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:59:15,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 16:59:15,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:59:15,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 16:59:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 16:59:15,378 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 16:59:15,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 04:59:15 BoogieIcfgContainer [2018-12-08 16:59:15,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 16:59:15,391 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 16:59:15,391 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 16:59:15,391 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 16:59:15,392 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:59:15" (3/4) ... [2018-12-08 16:59:15,394 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 16:59:15,394 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 16:59:15,395 INFO L168 Benchmark]: Toolchain (without parser) took 431.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -113.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:59:15,396 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:59:15,396 INFO L168 Benchmark]: CACSL2BoogieTranslator took 124.52 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 16:59:15,396 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.72 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:59:15,397 INFO L168 Benchmark]: Boogie Preprocessor took 39.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -155.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2018-12-08 16:59:15,397 INFO L168 Benchmark]: RCFGBuilder took 109.49 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: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-12-08 16:59:15,398 INFO L168 Benchmark]: TraceAbstraction took 139.11 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: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. [2018-12-08 16:59:15,398 INFO L168 Benchmark]: Witness Printer took 2.97 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. [2018-12-08 16:59:15,400 INFO L336 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 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 124.52 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 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 12.72 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -155.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 109.49 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: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 139.11 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: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.97 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 2]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of someBinaryArithmeticDOUBLEoperation at line 10. Possible FailurePath: [L9] double x = 1.0; [L10] double x1 = x/2.5; VAL [x=1] [L12] COND FALSE !(x1 != x) VAL [x=1] [L18] CALL __VERIFIER_assert(x == 0) VAL [\old(cond)=0] [L2] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L2] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 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 AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-635dfa2 [2018-12-08 16:59:16,735 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 16:59:16,736 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 16:59:16,742 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 16:59:16,742 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 16:59:16,743 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 16:59:16,744 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 16:59:16,745 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 16:59:16,745 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 16:59:16,746 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 16:59:16,746 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 16:59:16,746 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 16:59:16,747 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 16:59:16,747 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 16:59:16,748 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 16:59:16,748 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 16:59:16,749 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 16:59:16,750 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 16:59:16,751 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 16:59:16,751 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 16:59:16,752 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 16:59:16,753 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 16:59:16,754 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 16:59:16,754 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 16:59:16,754 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 16:59:16,755 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 16:59:16,755 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 16:59:16,756 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 16:59:16,756 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 16:59:16,756 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 16:59:16,757 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 16:59:16,757 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 16:59:16,757 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 16:59:16,757 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 16:59:16,758 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 16:59:16,758 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 16:59:16,758 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-08 16:59:16,766 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 16:59:16,766 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 16:59:16,766 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 16:59:16,766 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 16:59:16,767 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 16:59:16,767 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 16:59:16,767 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 16:59:16,767 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 16:59:16,767 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 16:59:16,767 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 16:59:16,768 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 16:59:16,768 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 16:59:16,768 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 16:59:16,768 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 16:59:16,768 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 16:59:16,768 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 16:59:16,768 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 16:59:16,768 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 16:59:16,769 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 16:59:16,769 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 16:59:16,769 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 16:59:16,769 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 16:59:16,769 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 16:59:16,769 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 16:59:16,769 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 16:59:16,769 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 16:59:16,770 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 16:59:16,770 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 16:59:16,770 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-08 16:59:16,770 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 16:59:16,770 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 16:59:16,770 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 16:59:16,770 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/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 -> 8571d6e044ba86c3b82c24f6ff451bf497f2aedf [2018-12-08 16:59:16,788 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 16:59:16,795 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 16:59:16,797 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 16:59:16,798 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 16:59:16,798 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 16:59:16,799 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i [2018-12-08 16:59:16,832 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/data/bb9e691d9/236970778fbd404c83597a97371eca3d/FLAG30674489d [2018-12-08 16:59:17,209 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 16:59:17,209 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i [2018-12-08 16:59:17,212 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/data/bb9e691d9/236970778fbd404c83597a97371eca3d/FLAG30674489d [2018-12-08 16:59:17,220 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/data/bb9e691d9/236970778fbd404c83597a97371eca3d [2018-12-08 16:59:17,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 16:59:17,223 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 16:59:17,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 16:59:17,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 16:59:17,226 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 16:59:17,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 04:59:17" (1/1) ... [2018-12-08 16:59:17,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c5a08fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:17, skipping insertion in model container [2018-12-08 16:59:17,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 04:59:17" (1/1) ... [2018-12-08 16:59:17,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 16:59:17,241 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 16:59:17,325 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 16:59:17,329 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 16:59:17,337 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 16:59:17,346 INFO L195 MainTranslator]: Completed translation [2018-12-08 16:59:17,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:17 WrapperNode [2018-12-08 16:59:17,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 16:59:17,347 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 16:59:17,347 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 16:59:17,347 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 16:59:17,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:17" (1/1) ... [2018-12-08 16:59:17,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:17" (1/1) ... [2018-12-08 16:59:17,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 16:59:17,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 16:59:17,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 16:59:17,360 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 16:59:17,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:17" (1/1) ... [2018-12-08 16:59:17,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:17" (1/1) ... [2018-12-08 16:59:17,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:17" (1/1) ... [2018-12-08 16:59:17,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:17" (1/1) ... [2018-12-08 16:59:17,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:17" (1/1) ... [2018-12-08 16:59:17,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:17" (1/1) ... [2018-12-08 16:59:17,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:17" (1/1) ... [2018-12-08 16:59:17,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 16:59:17,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 16:59:17,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 16:59:17,375 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 16:59:17,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/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 [2018-12-08 16:59:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 16:59:17,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 16:59:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 16:59:17,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 16:59:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 16:59:17,439 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 16:59:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-08 16:59:17,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-08 16:59:18,113 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 16:59:18,113 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-08 16:59:18,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:59:18 BoogieIcfgContainer [2018-12-08 16:59:18,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 16:59:18,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 16:59:18,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 16:59:18,116 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 16:59:18,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 04:59:17" (1/3) ... [2018-12-08 16:59:18,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eab192e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 04:59:18, skipping insertion in model container [2018-12-08 16:59:18,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:17" (2/3) ... [2018-12-08 16:59:18,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eab192e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 04:59:18, skipping insertion in model container [2018-12-08 16:59:18,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:59:18" (3/3) ... [2018-12-08 16:59:18,118 INFO L112 eAbstractionObserver]: Analyzing ICFG Double_div_true-unreach-call.i [2018-12-08 16:59:18,124 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 16:59:18,128 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 16:59:18,136 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 16:59:18,153 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 16:59:18,153 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 16:59:18,154 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 16:59:18,154 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 16:59:18,154 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 16:59:18,154 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 16:59:18,154 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 16:59:18,154 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 16:59:18,154 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 16:59:18,164 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-12-08 16:59:18,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 16:59:18,167 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 16:59:18,167 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 16:59:18,169 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 16:59:18,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:59:18,172 INFO L82 PathProgramCache]: Analyzing trace with hash -14991171, now seen corresponding path program 1 times [2018-12-08 16:59:18,174 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 16:59:18,174 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/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 [2018-12-08 16:59:18,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 16:59:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:59:18,338 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 16:59:20,975 WARN L180 SmtUtils]: Spent 2.62 s on a formula simplification that was a NOOP. DAG size: 11 [2018-12-08 16:59:20,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:59:20,982 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 16:59:20,992 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 16:59:20,992 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 16:59:20,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 16:59:21,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 16:59:21,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 16:59:21,003 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2018-12-08 16:59:22,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 16:59:22,257 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2018-12-08 16:59:22,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 16:59:22,839 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-08 16:59:22,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 16:59:22,844 INFO L225 Difference]: With dead ends: 31 [2018-12-08 16:59:22,844 INFO L226 Difference]: Without dead ends: 12 [2018-12-08 16:59:22,846 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 16:59:22,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-12-08 16:59:22,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-08 16:59:22,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-08 16:59:22,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-12-08 16:59:22,869 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-12-08 16:59:22,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 16:59:22,869 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-12-08 16:59:22,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 16:59:22,870 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-12-08 16:59:22,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 16:59:22,870 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 16:59:22,870 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 16:59:22,871 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 16:59:22,871 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:59:22,871 INFO L82 PathProgramCache]: Analyzing trace with hash -429188558, now seen corresponding path program 1 times [2018-12-08 16:59:22,871 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 16:59:22,871 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/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 [2018-12-08 16:59:22,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 16:59:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:59:23,158 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 16:59:26,770 WARN L180 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 12 [2018-12-08 16:59:26,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:59:26,773 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 16:59:39,415 WARN L180 SmtUtils]: Spent 3.42 s on a formula simplification that was a NOOP. DAG size: 7 [2018-12-08 16:59:39,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:59:39,437 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 16:59:39,437 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-12-08 16:59:39,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 16:59:39,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 16:59:39,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=16, Unknown=2, NotChecked=0, Total=30 [2018-12-08 16:59:39,439 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 6 states. [2018-12-08 16:59:46,409 WARN L832 $PredicateComparison]: unable to prove that (and (not (fp.eq (fp.div roundNearestTiesToEven c_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x1~0)) (not (fp.eq c_main_~x1~0 c_main_~x~0))) is different from false [2018-12-08 16:59:54,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 16:59:54,202 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-12-08 16:59:54,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 16:59:54,585 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-12-08 16:59:54,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 16:59:54,586 INFO L225 Difference]: With dead ends: 20 [2018-12-08 16:59:54,586 INFO L226 Difference]: Without dead ends: 15 [2018-12-08 16:59:54,587 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.8s TimeCoverageRelationStatistics Valid=19, Invalid=24, Unknown=3, NotChecked=10, Total=56 [2018-12-08 16:59:54,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-08 16:59:54,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-12-08 16:59:54,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-08 16:59:54,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-12-08 16:59:54,590 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2018-12-08 16:59:54,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 16:59:54,590 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-12-08 16:59:54,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 16:59:54,591 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-12-08 16:59:54,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-08 16:59:54,591 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 16:59:54,591 INFO L402 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 16:59:54,591 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 16:59:54,592 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:59:54,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1090549245, now seen corresponding path program 2 times [2018-12-08 16:59:54,592 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 16:59:54,592 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-08 16:59:54,596 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-12-08 16:59:55,245 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-08 16:59:55,245 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 16:59:55,296 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 17:00:04,115 WARN L180 SmtUtils]: Spent 2.37 s on a formula simplification that was a NOOP. DAG size: 15 [2018-12-08 17:00:04,118 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:00:04,118 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 17:00:13,181 WARN L854 $PredicateComparison]: unable to prove that (or (fp.eq c_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven c_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x1~0))) is different from true [2018-12-08 17:00:15,559 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven c_main_~x1~0 .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from false [2018-12-08 17:00:17,936 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven c_main_~x1~0 .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from true [2018-12-08 17:00:20,491 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~x1~0 .cse1) .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))) is different from false [2018-12-08 17:00:23,049 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~x1~0 .cse1) .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))) is different from true [2018-12-08 17:00:25,764 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~x1~0 .cse1) .cse1) .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from false [2018-12-08 17:00:28,476 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~x1~0 .cse1) .cse1) .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from true [2018-12-08 17:00:28,491 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 10 not checked. [2018-12-08 17:00:28,508 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 17:00:28,508 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 15 [2018-12-08 17:00:28,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-08 17:00:28,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-08 17:00:28,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=90, Unknown=7, NotChecked=84, Total=210 [2018-12-08 17:00:28,510 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 15 states. [2018-12-08 17:00:31,255 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (= c_main_~x1~0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0)) (let ((.cse1 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~x1~0 .cse0) .cse0) .cse0))) (or (fp.eq .cse1 .cse2) (not (fp.eq (fp.div roundNearestTiesToEven .cse1 .cse0) .cse1)))) (or (fp.eq c_main_~x~0 .cse2) (not (fp.eq c_main_~x1~0 c_main_~x~0))))) is different from true [2018-12-08 17:00:33,828 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (and (= c_main_~x1~0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0) .cse0)) (let ((.cse1 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~x1~0 .cse0) .cse0))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse1 .cse0) .cse1)) (fp.eq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) is different from true [2018-12-08 17:00:36,221 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (and (= c_main_~x1~0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0) .cse0) .cse0)) (let ((.cse1 (fp.div roundNearestTiesToEven c_main_~x1~0 .cse0))) (or (fp.eq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse1 .cse0) .cse1)))))) is different from true [2018-12-08 17:00:38,422 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (and (= c_main_~x1~0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0) .cse0) .cse0) .cse0)) (or (fp.eq c_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven c_main_~x1~0 .cse0) c_main_~x1~0))))) is different from true [2018-12-08 17:00:45,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:00:45,695 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2018-12-08 17:00:45,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-08 17:00:45,695 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 14 [2018-12-08 17:00:45,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:00:45,696 INFO L225 Difference]: With dead ends: 25 [2018-12-08 17:00:45,696 INFO L226 Difference]: Without dead ends: 17 [2018-12-08 17:00:45,696 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 45.2s TimeCoverageRelationStatistics Valid=41, Invalid=112, Unknown=11, NotChecked=216, Total=380 [2018-12-08 17:00:45,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-12-08 17:00:45,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-12-08 17:00:45,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-12-08 17:00:45,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-12-08 17:00:45,699 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2018-12-08 17:00:45,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:00:45,700 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-12-08 17:00:45,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-08 17:00:45,700 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-12-08 17:00:45,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-08 17:00:45,700 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:00:45,700 INFO L402 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:00:45,700 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:00:45,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:00:45,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1183011997, now seen corresponding path program 3 times [2018-12-08 17:00:45,701 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 17:00:45,701 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-08 17:00:45,703 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-12-08 17:00:46,424 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-12-08 17:00:46,424 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 17:00:46,482 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 17:00:51,479 WARN L180 SmtUtils]: Spent 2.84 s on a formula simplification that was a NOOP. DAG size: 7 [2018-12-08 17:00:53,874 WARN L832 $PredicateComparison]: unable to prove that (and (exists ((v_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_14 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) (and (not (fp.eq .cse0 v_main_~x~0_14)) (= .cse0 c_main_~x~0)))) (= c_main_~x1~0 (fp.div roundNearestTiesToEven c_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) is different from false [2018-12-08 17:00:56,069 WARN L854 $PredicateComparison]: unable to prove that (and (exists ((v_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_14 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) (and (not (fp.eq .cse0 v_main_~x~0_14)) (= .cse0 c_main_~x~0)))) (= c_main_~x1~0 (fp.div roundNearestTiesToEven c_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) is different from true [2018-12-08 17:00:58,454 WARN L832 $PredicateComparison]: unable to prove that (and (exists ((v_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_14 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) (and (not (fp.eq .cse0 v_main_~x~0_14)) (= .cse0 c_main_~x~0)))) (fp.eq (fp.div roundNearestTiesToEven c_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x~0)) is different from false [2018-12-08 17:01:12,377 WARN L832 $PredicateComparison]: unable to prove that (or (and (exists ((v_prenex_2 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_prenex_2 .cse1))) (and (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0) (not (fp.eq .cse0 v_prenex_2)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32))) (and (exists ((v_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse2 (fp.div roundNearestTiesToEven v_main_~x~0_14 .cse3))) (and (not (fp.eq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.eq .cse2 v_main_~x~0_14)) (fp.eq (fp.div roundNearestTiesToEven .cse2 .cse3) .cse2))))) (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) is different from false [2018-12-08 17:01:24,702 WARN L832 $PredicateComparison]: unable to prove that (or (and (= (_ bv0 32) c___VERIFIER_assert_~cond) (exists ((v_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_14 .cse1))) (and (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.eq .cse0 v_main_~x~0_14)) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)))))) (and (exists ((v_prenex_2 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse2 (fp.div roundNearestTiesToEven v_prenex_2 .cse3))) (and (fp.eq (fp.div roundNearestTiesToEven .cse2 .cse3) .cse2) (not (fp.eq .cse2 v_prenex_2)) (fp.eq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)))) is different from false [2018-12-08 17:01:31,875 WARN L832 $PredicateComparison]: unable to prove that (exists ((v_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_14 .cse1))) (and (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.eq .cse0 v_main_~x~0_14)) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from false [2018-12-08 17:01:34,213 WARN L854 $PredicateComparison]: unable to prove that (exists ((v_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_14 .cse1))) (and (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.eq .cse0 v_main_~x~0_14)) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from true [2018-12-08 17:01:34,215 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 1 not checked. [2018-12-08 17:01:34,215 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 17:02:14,809 WARN L180 SmtUtils]: Spent 9.69 s on a formula simplification that was a NOOP. DAG size: 13 [2018-12-08 17:02:21,957 WARN L832 $PredicateComparison]: unable to prove that (forall ((v_main_~x~0_16 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_16 .cse1))) (or (fp.eq .cse0 v_main_~x~0_16) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) is different from false [2018-12-08 17:02:24,361 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_main_~x~0_16 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_16 .cse1))) (or (fp.eq .cse0 v_main_~x~0_16) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) is different from true [2018-12-08 17:02:58,021 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 17:02:58,021 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 17:02:58,028 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 17:03:28,195 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-12-08 17:03:28,195 INFO L250 tOrderPrioritization]: Conjunction of SSA is unknown [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (6)] Forcibly destroying the process [2018-12-08 17:03:29,564 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-12-08 17:03:29,565 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-12-08 17:03:29,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 17:03:29,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 17:03:29,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=37, Unknown=17, NotChecked=102, Total=182 [2018-12-08 17:03:29,565 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 8 states. [2018-12-08 17:03:32,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:03:32,027 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-12-08 17:03:32,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 17:03:32,420 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-12-08 17:03:32,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:03:32,420 INFO L225 Difference]: With dead ends: 17 [2018-12-08 17:03:32,420 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 17:03:32,420 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 69.1s TimeCoverageRelationStatistics Valid=26, Invalid=37, Unknown=17, NotChecked=102, Total=182 [2018-12-08 17:03:32,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 17:03:32,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 17:03:32,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 17:03:32,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 17:03:32,421 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-12-08 17:03:32,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:03:32,421 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 17:03:32,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 17:03:32,422 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 17:03:32,422 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 17:03:32,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 17:03:34,139 WARN L180 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 44 DAG size of output: 1 [2018-12-08 17:03:56,976 WARN L180 SmtUtils]: Spent 22.84 s on a formula simplification that was a NOOP. DAG size: 18 [2018-12-08 17:05:10,099 WARN L180 SmtUtils]: Spent 1.22 m on a formula simplification. DAG size of input: 34 DAG size of output: 22 [2018-12-08 17:05:10,101 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-08 17:05:10,101 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 17:05:10,101 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 17:05:10,101 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-08 17:05:10,101 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 17:05:10,101 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 17:05:10,101 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 7 20) the Hoare annotation is: true [2018-12-08 17:05:10,101 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 7 20) no Hoare annotation was computed. [2018-12-08 17:05:10,101 INFO L448 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-12-08 17:05:10,101 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 7 20) no Hoare annotation was computed. [2018-12-08 17:05:10,102 INFO L444 ceAbstractionStarter]: At program point L12-2(lines 12 16) the Hoare annotation is: (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (or (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (= .cse0 main_~x~0) (= main_~x1~0 (fp.div roundNearestTiesToEven .cse0 .cse1)))) (and (exists ((v_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse2 (fp.div roundNearestTiesToEven v_main_~x~0_14 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) (and (not (fp.eq .cse2 v_main_~x~0_14)) (= .cse2 main_~x~0)))) (= main_~x1~0 (fp.div roundNearestTiesToEven main_~x~0 .cse1))))) [2018-12-08 17:05:10,102 INFO L444 ceAbstractionStarter]: At program point L12-3(lines 12 16) the Hoare annotation is: (or (and (exists ((v_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_14 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) (and (not (fp.eq .cse0 v_main_~x~0_14)) (= .cse0 main_~x~0)))) (fp.eq (fp.div roundNearestTiesToEven main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) main_~x~0)) (fp.eq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) [2018-12-08 17:05:10,102 INFO L448 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2018-12-08 17:05:10,102 INFO L448 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2018-12-08 17:05:10,102 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2018-12-08 17:05:10,102 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2018-12-08 17:05:10,102 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2018-12-08 17:05:10,102 INFO L448 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2018-12-08 17:05:10,108 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,109 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,109 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,109 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,109 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,110 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2018-12-08 17:05:10,110 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,110 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2018-12-08 17:05:10,110 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,110 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2018-12-08 17:05:10,110 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,111 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,111 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,114 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,114 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,114 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,114 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,115 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,115 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2018-12-08 17:05:10,115 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,115 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2018-12-08 17:05:10,115 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,115 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2018-12-08 17:05:10,115 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,116 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,116 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 05:05:10 BoogieIcfgContainer [2018-12-08 17:05:10,118 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 17:05:10,118 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 17:05:10,118 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 17:05:10,118 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 17:05:10,119 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:59:18" (3/4) ... [2018-12-08 17:05:10,121 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 17:05:10,126 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 17:05:10,126 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 17:05:10,126 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-08 17:05:10,129 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-08 17:05:10,129 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-08 17:05:10,129 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 17:05:10,146 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x && x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) || ((\exists v_main_~x~0_14 : C_DOUBLE :: !~fp.eq~DOUBLE(~fp.div~DOUBLE(~roundNearestTiesToEven, v_main_~x~0_14, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)), v_main_~x~0_14) && ~fp.div~DOUBLE(~roundNearestTiesToEven, v_main_~x~0_14, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) == x) && x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) [2018-12-08 17:05:10,151 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_608b8c94-f4dd-4b11-9699-ee75c521b74a/bin-2019/uautomizer/witness.graphml [2018-12-08 17:05:10,152 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 17:05:10,152 INFO L168 Benchmark]: Toolchain (without parser) took 352929.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 944.7 MB in the beginning and 981.7 MB in the end (delta: -37.0 MB). Peak memory consumption was 112.9 MB. Max. memory is 11.5 GB. [2018-12-08 17:05:10,153 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:05:10,153 INFO L168 Benchmark]: CACSL2BoogieTranslator took 122.86 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 17:05:10,153 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.18 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 932.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2018-12-08 17:05:10,153 INFO L168 Benchmark]: Boogie Preprocessor took 14.83 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 17:05:10,153 INFO L168 Benchmark]: RCFGBuilder took 738.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -193.4 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-12-08 17:05:10,154 INFO L168 Benchmark]: TraceAbstraction took 352003.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.7 MB in the end (delta: 138.9 MB). Peak memory consumption was 138.9 MB. Max. memory is 11.5 GB. [2018-12-08 17:05:10,154 INFO L168 Benchmark]: Witness Printer took 33.53 ms. Allocated memory is still 1.2 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:05:10,156 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 122.86 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 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 13.18 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 932.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.83 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 738.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -193.4 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 352003.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.7 MB in the end (delta: 138.9 MB). Peak memory consumption was 138.9 MB. Max. memory is 11.5 GB. * Witness Printer took 33.53 ms. Allocated memory is still 1.2 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: 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: 12]: Loop Invariant [2018-12-08 17:05:10,159 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,159 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,159 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,159 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,159 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,160 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2018-12-08 17:05:10,160 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,160 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2018-12-08 17:05:10,160 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,160 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2018-12-08 17:05:10,160 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,160 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,160 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,161 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,161 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,161 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,161 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,161 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,161 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2018-12-08 17:05:10,161 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,161 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2018-12-08 17:05:10,161 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,162 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2018-12-08 17:05:10,162 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,162 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 17:05:10,162 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x && x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) || ((\exists v_main_~x~0_14 : C_DOUBLE :: !~fp.eq~DOUBLE(~fp.div~DOUBLE(~roundNearestTiesToEven, v_main_~x~0_14, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)), v_main_~x~0_14) && ~fp.div~DOUBLE(~roundNearestTiesToEven, v_main_~x~0_14, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) == x) && x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 351.9s OverallTime, 4 OverallIterations, 6 TraceHistogramMax, 37.0s AutomataDifference, 0.0s DeadEndRemovalTime, 97.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 40 SDtfs, 2 SDslu, 113 SDs, 0 SdLazy, 48 SolverSat, 6 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 17.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 52 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 15 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 137.9s 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 AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 19 NumberOfFragments, 84 HoareAnnotationTreeSize, 11 FomulaSimplifications, 362 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 253 FormulaSimplificationTreeSizeReductionInter, 97.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 31.9s SatisfiabilityAnalysisTime, 183.7s InterpolantComputationTime, 67 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 70 ConstructedInterpolants, 5 QuantifiedInterpolants, 8943 SizeOfPredicates, 13 NumberOfNonLiveVariables, 103 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 20/43 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...