./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i.p+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/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 1bbff5832e71471655f4416229b3fdd1dac2e479 .................................................................................................................................................................................................................................................. 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_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i.p+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/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 1bbff5832e71471655f4416229b3fdd1dac2e479 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 11:27:57,937 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:27:57,938 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:27:57,945 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:27:57,946 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:27:57,946 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:27:57,947 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:27:57,948 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:27:57,949 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:27:57,950 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:27:57,950 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:27:57,950 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:27:57,951 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:27:57,952 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:27:57,952 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:27:57,953 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:27:57,954 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:27:57,955 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:27:57,956 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:27:57,957 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:27:57,958 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:27:57,959 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:27:57,960 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:27:57,961 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:27:57,961 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:27:57,961 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:27:57,962 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:27:57,963 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:27:57,963 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:27:57,964 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:27:57,964 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:27:57,965 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:27:57,965 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:27:57,965 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:27:57,966 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:27:57,966 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:27:57,967 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 11:27:57,976 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:27:57,976 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:27:57,977 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:27:57,977 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:27:57,978 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:27:57,978 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:27:57,978 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:27:57,978 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:27:57,978 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:27:57,978 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:27:57,978 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:27:57,979 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:27:57,979 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 11:27:57,979 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:27:57,979 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 11:27:57,979 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:27:57,979 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:27:57,979 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:27:57,979 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 11:27:57,980 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:27:57,980 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:27:57,980 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:27:57,980 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:27:57,980 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:27:57,980 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:27:57,980 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:27:57,981 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 11:27:57,981 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:27:57,981 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:27:57,981 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 11:27:57,981 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_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/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 -> 1bbff5832e71471655f4416229b3fdd1dac2e479 [2018-11-28 11:27:58,004 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:27:58,011 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:27:58,013 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:27:58,014 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:27:58,014 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:27:58,015 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/bin-2019/uautomizer/../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i.p+cfa-reducer.c [2018-11-28 11:27:58,047 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/bin-2019/uautomizer/data/8edd1a9b0/322611ee6287490f970e86c5b8a2bcc7/FLAGeab7a15a0 [2018-11-28 11:27:58,441 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:27:58,442 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i.p+cfa-reducer.c [2018-11-28 11:27:58,445 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/bin-2019/uautomizer/data/8edd1a9b0/322611ee6287490f970e86c5b8a2bcc7/FLAGeab7a15a0 [2018-11-28 11:27:58,453 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/bin-2019/uautomizer/data/8edd1a9b0/322611ee6287490f970e86c5b8a2bcc7 [2018-11-28 11:27:58,455 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:27:58,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:27:58,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:27:58,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:27:58,459 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:27:58,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:27:58" (1/1) ... [2018-11-28 11:27:58,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cad7cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:58, skipping insertion in model container [2018-11-28 11:27:58,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:27:58" (1/1) ... [2018-11-28 11:27:58,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:27:58,475 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:27:58,571 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:27:58,574 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:27:58,584 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:27:58,592 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:27:58,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:58 WrapperNode [2018-11-28 11:27:58,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:27:58,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:27:58,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:27:58,593 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:27:58,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:58" (1/1) ... [2018-11-28 11:27:58,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:58" (1/1) ... [2018-11-28 11:27:58,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:27:58,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:27:58,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:27:58,605 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:27:58,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:58" (1/1) ... [2018-11-28 11:27:58,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:58" (1/1) ... [2018-11-28 11:27:58,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:58" (1/1) ... [2018-11-28 11:27:58,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:58" (1/1) ... [2018-11-28 11:27:58,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:58" (1/1) ... [2018-11-28 11:27:58,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:58" (1/1) ... [2018-11-28 11:27:58,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:58" (1/1) ... [2018-11-28 11:27:58,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:27:58,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:27:58,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:27:58,617 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:27:58,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/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 [2018-11-28 11:27:58,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 11:27:58,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 11:27:58,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:27:58,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:27:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 11:27:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 11:27:58,771 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:27:58,771 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 11:27:58,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:27:58 BoogieIcfgContainer [2018-11-28 11:27:58,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:27:58,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:27:58,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:27:58,774 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:27:58,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:27:58" (1/3) ... [2018-11-28 11:27:58,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6848ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:27:58, skipping insertion in model container [2018-11-28 11:27:58,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:27:58" (2/3) ... [2018-11-28 11:27:58,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6848ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:27:58, skipping insertion in model container [2018-11-28 11:27:58,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:27:58" (3/3) ... [2018-11-28 11:27:58,776 INFO L112 eAbstractionObserver]: Analyzing ICFG Double_div_true-unreach-call.i.p+cfa-reducer.c [2018-11-28 11:27:58,782 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:27:58,786 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 11:27:58,795 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 11:27:58,812 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:27:58,813 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:27:58,813 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 11:27:58,813 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:27:58,813 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:27:58,813 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:27:58,813 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:27:58,813 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:27:58,813 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:27:58,825 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2018-11-28 11:27:58,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 11:27:58,829 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:27:58,830 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:27:58,832 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:27:58,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:27:58,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1301230683, now seen corresponding path program 1 times [2018-11-28 11:27:58,837 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:27:58,837 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:27:58,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:58,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:27:58,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:27:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:27:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:27:58,907 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 11:27:58,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:27:58 BoogieIcfgContainer [2018-11-28 11:27:58,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 11:27:58,923 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:27:58,924 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:27:58,924 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:27:58,924 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:27:58" (3/4) ... [2018-11-28 11:27:58,926 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 11:27:58,926 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:27:58,927 INFO L168 Benchmark]: Toolchain (without parser) took 471.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -158.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:27:58,928 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:27:58,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.95 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-28 11:27:58,929 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.23 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:27:58,930 INFO L168 Benchmark]: Boogie Preprocessor took 11.37 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:27:58,930 INFO L168 Benchmark]: RCFGBuilder took 155.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -189.2 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-11-28 11:27:58,931 INFO L168 Benchmark]: TraceAbstraction took 151.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-11-28 11:27:58,931 INFO L168 Benchmark]: Witness Printer took 3.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:27:58,933 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 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 135.95 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.23 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.37 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 155.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -189.2 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 151.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 25]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 10, overapproximation of someBinaryArithmeticDOUBLEoperation at line 8. Possible FailurePath: [L1] int __return_main; VAL [\old(__return_main)=2, __return_main=0] [L7] double main__x = 1.0; [L8] double main__x1 = main__x / 2.5; VAL [__return_main=0, main__x=1] [L10] COND FALSE !(main__x1 != main__x) [L19] int __tmp_1; [L20] __tmp_1 = main__x == 0 [L21] int __VERIFIER_assert__cond; [L22] __VERIFIER_assert__cond = __tmp_1 VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main__x=1] [L23] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main__x=1] [L25] __VERIFIER_error() VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main__x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 14 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=14occurred 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, 9 NumberOfCodeBlocks, 9 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 0.1.23-0cd3be1 [2018-11-28 11:28:00,370 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:28:00,371 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:28:00,380 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:28:00,380 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:28:00,381 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:28:00,381 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:28:00,383 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:28:00,384 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:28:00,384 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:28:00,385 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:28:00,385 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:28:00,385 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:28:00,386 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:28:00,387 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:28:00,387 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:28:00,388 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:28:00,389 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:28:00,390 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:28:00,391 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:28:00,392 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:28:00,393 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:28:00,394 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:28:00,395 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:28:00,395 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:28:00,395 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:28:00,396 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:28:00,396 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:28:00,397 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:28:00,398 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:28:00,398 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:28:00,398 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:28:00,398 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:28:00,399 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:28:00,399 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:28:00,400 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:28:00,400 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 11:28:00,410 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:28:00,410 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:28:00,410 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:28:00,411 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:28:00,411 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:28:00,411 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:28:00,411 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:28:00,411 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:28:00,411 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:28:00,412 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:28:00,412 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:28:00,412 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 11:28:00,412 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:28:00,412 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 11:28:00,412 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 11:28:00,412 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 11:28:00,412 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:28:00,412 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:28:00,413 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:28:00,413 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 11:28:00,413 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:28:00,413 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:28:00,413 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:28:00,413 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:28:00,413 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:28:00,413 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:28:00,414 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:28:00,414 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 11:28:00,414 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 11:28:00,414 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:28:00,414 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 11:28:00,414 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 11:28:00,414 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_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/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 -> 1bbff5832e71471655f4416229b3fdd1dac2e479 [2018-11-28 11:28:00,437 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:28:00,447 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:28:00,450 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:28:00,451 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:28:00,451 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:28:00,452 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/bin-2019/uautomizer/../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i.p+cfa-reducer.c [2018-11-28 11:28:00,498 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/bin-2019/uautomizer/data/2611fca5d/b30125426eae457686bc8a45e7681e4f/FLAG145d2f6c6 [2018-11-28 11:28:00,820 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:28:00,820 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i.p+cfa-reducer.c [2018-11-28 11:28:00,824 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/bin-2019/uautomizer/data/2611fca5d/b30125426eae457686bc8a45e7681e4f/FLAG145d2f6c6 [2018-11-28 11:28:01,257 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/bin-2019/uautomizer/data/2611fca5d/b30125426eae457686bc8a45e7681e4f [2018-11-28 11:28:01,259 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:28:01,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:28:01,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:28:01,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:28:01,263 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:28:01,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:28:01" (1/1) ... [2018-11-28 11:28:01,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e3eb2d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:28:01, skipping insertion in model container [2018-11-28 11:28:01,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:28:01" (1/1) ... [2018-11-28 11:28:01,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:28:01,280 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:28:01,381 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:28:01,387 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:28:01,397 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:28:01,406 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:28:01,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:28:01 WrapperNode [2018-11-28 11:28:01,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:28:01,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:28:01,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:28:01,407 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:28:01,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:28:01" (1/1) ... [2018-11-28 11:28:01,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:28:01" (1/1) ... [2018-11-28 11:28:01,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:28:01,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:28:01,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:28:01,422 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:28:01,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:28:01" (1/1) ... [2018-11-28 11:28:01,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:28:01" (1/1) ... [2018-11-28 11:28:01,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:28:01" (1/1) ... [2018-11-28 11:28:01,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:28:01" (1/1) ... [2018-11-28 11:28:01,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:28:01" (1/1) ... [2018-11-28 11:28:01,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:28:01" (1/1) ... [2018-11-28 11:28:01,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:28:01" (1/1) ... [2018-11-28 11:28:01,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:28:01,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:28:01,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:28:01,439 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:28:01,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:28:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/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 [2018-11-28 11:28:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 11:28:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 11:28:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:28:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:28:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 11:28:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 11:28:02,248 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:28:02,249 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 11:28:02,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:28:02 BoogieIcfgContainer [2018-11-28 11:28:02,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:28:02,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:28:02,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:28:02,252 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:28:02,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:28:01" (1/3) ... [2018-11-28 11:28:02,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b4e6a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:28:02, skipping insertion in model container [2018-11-28 11:28:02,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:28:01" (2/3) ... [2018-11-28 11:28:02,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b4e6a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:28:02, skipping insertion in model container [2018-11-28 11:28:02,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:28:02" (3/3) ... [2018-11-28 11:28:02,254 INFO L112 eAbstractionObserver]: Analyzing ICFG Double_div_true-unreach-call.i.p+cfa-reducer.c [2018-11-28 11:28:02,260 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:28:02,265 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 11:28:02,277 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 11:28:02,299 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:28:02,299 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:28:02,299 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 11:28:02,299 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:28:02,299 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:28:02,299 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:28:02,299 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:28:02,299 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:28:02,300 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:28:02,313 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2018-11-28 11:28:02,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 11:28:02,318 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:28:02,319 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:28:02,320 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:28:02,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:28:02,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1301230683, now seen corresponding path program 1 times [2018-11-28 11:28:02,326 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:28:02,326 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/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 [2018-11-28 11:28:02,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:28:02,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:28:02,502 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:28:03,645 WARN L180 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 11 [2018-11-28 11:28:03,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:28:03,652 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:28:03,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:28:03,662 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 11:28:03,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:28:03,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:28:03,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:28:03,674 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2018-11-28 11:28:05,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:28:05,954 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2018-11-28 11:28:06,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:28:06,140 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-28 11:28:06,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:28:06,146 INFO L225 Difference]: With dead ends: 22 [2018-11-28 11:28:06,147 INFO L226 Difference]: Without dead ends: 11 [2018-11-28 11:28:06,149 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:28:06,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-11-28 11:28:06,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-28 11:28:06,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-28 11:28:06,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-11-28 11:28:06,171 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-11-28 11:28:06,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:28:06,172 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-11-28 11:28:06,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:28:06,172 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-11-28 11:28:06,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 11:28:06,173 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:28:06,173 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:28:06,173 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:28:06,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:28:06,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1683383028, now seen corresponding path program 1 times [2018-11-28 11:28:06,174 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:28:06,174 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/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 [2018-11-28 11:28:06,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:28:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:28:06,494 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:28:09,175 WARN L180 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 12 [2018-11-28 11:28:09,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:28:09,178 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 11:28:19,654 WARN L180 SmtUtils]: Spent 2.32 s on a formula simplification that was a NOOP. DAG size: 7 [2018-11-28 11:28:19,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:28:19,676 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 11:28:19,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-11-28 11:28:19,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 11:28:19,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 11:28:19,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 11:28:19,678 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 6 states. [2018-11-28 11:28:37,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:28:37,163 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2018-11-28 11:28:37,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 11:28:37,357 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-11-28 11:28:37,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:28:37,358 INFO L225 Difference]: With dead ends: 16 [2018-11-28 11:28:37,358 INFO L226 Difference]: Without dead ends: 13 [2018-11-28 11:28:37,359 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2018-11-28 11:28:37,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-11-28 11:28:37,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-11-28 11:28:37,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-28 11:28:37,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-11-28 11:28:37,361 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-11-28 11:28:37,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:28:37,362 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-11-28 11:28:37,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 11:28:37,362 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-11-28 11:28:37,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 11:28:37,362 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:28:37,362 INFO L402 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:28:37,363 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:28:37,363 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:28:37,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1473580076, now seen corresponding path program 2 times [2018-11-28 11:28:37,363 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:28:37,363 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/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 [2018-11-28 11:28:37,367 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-28 11:28:37,922 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 11:28:37,922 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 11:28:37,966 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:28:45,450 WARN L180 SmtUtils]: Spent 2.72 s on a formula simplification that was a NOOP. DAG size: 14 [2018-11-28 11:28:45,463 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:28:45,464 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 11:28:50,628 WARN L832 $PredicateComparison]: unable to prove that (or (fp.eq c_main_~main__x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven c_main_~main__x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~main__x1~0))) is different from false [2018-11-28 11:28:52,823 WARN L854 $PredicateComparison]: unable to prove that (or (fp.eq c_main_~main__x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven c_main_~main__x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~main__x1~0))) is different from true [2018-11-28 11:28:55,222 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_~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 [2018-11-28 11:28:57,609 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_~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 [2018-11-28 11:29:00,174 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_~main__x1~0 .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 [2018-11-28 11:29:02,740 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_~main__x1~0 .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 [2018-11-28 11:29:02,753 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2018-11-28 11:29:02,768 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 11:29:02,768 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2018-11-28 11:29:02,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 11:29:02,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 11:29:02,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=41, Unknown=7, NotChecked=42, Total=110 [2018-11-28 11:29:02,769 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 11 states. [2018-11-28 11:29:05,345 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~main__x1~0 .cse2) .cse2))) (or (fp.eq .cse0 .cse1) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse2) .cse0)))) (= c_main_~main__x1~0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse2)) (or (not (fp.eq c_main_~main__x1~0 c_main_~main__x~0)) (fp.eq c_main_~main__x~0 .cse1)))) is different from true [2018-11-28 11:29:07,746 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (and (let ((.cse0 (fp.div roundNearestTiesToEven c_main_~main__x1~0 .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)))) (= (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse1) .cse1) c_main_~main__x1~0))) is different from true [2018-11-28 11:29:15,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:29:15,498 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-11-28 11:29:15,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 11:29:15,499 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2018-11-28 11:29:15,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:29:15,499 INFO L225 Difference]: With dead ends: 19 [2018-11-28 11:29:15,499 INFO L226 Difference]: Without dead ends: 15 [2018-11-28 11:29:15,500 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.5s TimeCoverageRelationStatistics Valid=28, Invalid=55, Unknown=9, NotChecked=90, Total=182 [2018-11-28 11:29:15,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-28 11:29:15,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-28 11:29:15,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-28 11:29:15,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-11-28 11:29:15,503 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2018-11-28 11:29:15,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:29:15,503 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-11-28 11:29:15,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 11:29:15,504 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-11-28 11:29:15,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 11:29:15,504 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:29:15,504 INFO L402 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:29:15,504 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:29:15,504 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:29:15,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1226755252, now seen corresponding path program 3 times [2018-11-28 11:29:15,505 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:29:15,505 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/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 [2018-11-28 11:29:15,509 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-28 11:29:16,274 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-28 11:29:16,275 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 11:29:16,331 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:29:18,529 WARN L832 $PredicateComparison]: unable to prove that (= (fp.div roundNearestTiesToEven c_main_~main__x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~main__x1~0) is different from false [2018-11-28 11:29:21,609 WARN L832 $PredicateComparison]: unable to prove that (and (exists ((v_main_~main__x~0_11 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~main__x~0_11 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) (and (= c_main_~main__x~0 .cse0) (not (fp.eq .cse0 v_main_~main__x~0_11))))) (= (fp.div roundNearestTiesToEven c_main_~main__x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~main__x1~0)) is different from false [2018-11-28 11:29:23,826 WARN L854 $PredicateComparison]: unable to prove that (and (exists ((v_main_~main__x~0_11 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~main__x~0_11 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) (and (= c_main_~main__x~0 .cse0) (not (fp.eq .cse0 v_main_~main__x~0_11))))) (= (fp.div roundNearestTiesToEven c_main_~main__x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~main__x1~0)) is different from true [2018-11-28 11:29:36,149 WARN L832 $PredicateComparison]: unable to prove that (or (and (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_prenex_1 .cse1))) (and (not (fp.eq .cse0 v_prenex_1)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) (= c_main_~__VERIFIER_assert__cond~0 (_ bv0 32))) (and (exists ((v_main_~main__x~0_11 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse2 (fp.div roundNearestTiesToEven v_main_~main__x~0_11 .cse3))) (and (fp.eq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (fp.eq (fp.div roundNearestTiesToEven .cse2 .cse3) .cse2) (not (fp.eq .cse2 v_main_~main__x~0_11)))))) (= (bvadd c_main_~__VERIFIER_assert__cond~0 (_ bv4294967295 32)) (_ bv0 32)))) is different from false [2018-11-28 11:29:43,325 WARN L832 $PredicateComparison]: unable to prove that (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_prenex_1 .cse1))) (and (not (fp.eq .cse0 v_prenex_1)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from false [2018-11-28 11:29:45,670 WARN L854 $PredicateComparison]: unable to prove that (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_prenex_1 .cse1))) (and (not (fp.eq .cse0 v_prenex_1)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from true [2018-11-28 11:29:45,671 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 1 not checked. [2018-11-28 11:29:45,671 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 11:29:47,895 WARN L832 $PredicateComparison]: unable to prove that (or (fp.eq c_main_~main__x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven c_main_~main__x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~main__x1~0)) (fp.eq c_main_~main__x1~0 c_main_~main__x~0)) is different from false [2018-11-28 11:29:50,093 WARN L854 $PredicateComparison]: unable to prove that (or (fp.eq c_main_~main__x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven c_main_~main__x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~main__x1~0)) (fp.eq c_main_~main__x1~0 c_main_~main__x~0)) is different from true [2018-11-28 11:29:57,227 WARN L832 $PredicateComparison]: unable to prove that (forall ((v_main_~main__x~0_13 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~main__x~0_13 .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (fp.eq .cse0 v_main_~main__x~0_13))))) is different from false [2018-11-28 11:29:59,615 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_main_~main__x~0_13 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~main__x~0_13 .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (fp.eq .cse0 v_main_~main__x~0_13))))) is different from true [2018-11-28 11:30:28,370 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 11:30:28,371 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/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 [2018-11-28 11:30:28,378 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-28 11:31:03,702 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-28 11:31:03,703 INFO L250 tOrderPrioritization]: Conjunction of SSA is unknown [2018-11-28 11:31:04,905 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-11-28 11:31:04,905 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-11-28 11:31:04,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 11:31:04,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 11:31:04,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=9, Unknown=10, NotChecked=54, Total=90 [2018-11-28 11:31:04,906 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 6 states. [2018-11-28 11:31:04,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:31:04,909 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-11-28 11:31:04,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 11:31:04,909 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-11-28 11:31:04,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:31:04,909 INFO L225 Difference]: With dead ends: 15 [2018-11-28 11:31:04,909 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 11:31:04,910 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.1s TimeCoverageRelationStatistics Valid=17, Invalid=9, Unknown=10, NotChecked=54, Total=90 [2018-11-28 11:31:04,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 11:31:04,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 11:31:04,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 11:31:04,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 11:31:04,911 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-28 11:31:04,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:31:04,911 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:31:04,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 11:31:04,911 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 11:31:04,911 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 11:31:04,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 11:32:23,226 WARN L180 SmtUtils]: Spent 1.30 m on a formula simplification. DAG size of input: 41 DAG size of output: 22 [2018-11-28 11:32:23,228 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 11:32:23,228 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 11:32:23,229 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 11:32:23,229 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 11:32:23,229 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 11:32:23,229 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 11:32:23,229 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 11:32:23,229 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 5 34) the Hoare annotation is: true [2018-11-28 11:32:23,229 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-28 11:32:23,229 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 5 34) no Hoare annotation was computed. [2018-11-28 11:32:23,229 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 31) no Hoare annotation was computed. [2018-11-28 11:32:23,230 INFO L444 ceAbstractionStarter]: At program point L14(lines 6 34) the Hoare annotation is: (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (or (and (exists ((v_main_~main__x~0_11 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~main__x~0_11 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) (and (= main_~main__x~0 .cse0) (not (fp.eq .cse0 v_main_~main__x~0_11))))) (= (fp.div roundNearestTiesToEven main_~main__x~0 .cse1) main_~main__x1~0)) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (= .cse2 main_~main__x~0) (= main_~main__x1~0 (fp.div roundNearestTiesToEven .cse2 .cse1)))))) [2018-11-28 11:32:23,230 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 5 34) no Hoare annotation was computed. [2018-11-28 11:32:23,230 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2018-11-28 11:32:23,236 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,237 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-28 11:32:23,237 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,237 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,237 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-28 11:32:23,237 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,238 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-28 11:32:23,238 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,238 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,238 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,239 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,239 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,239 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,242 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,242 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-28 11:32:23,242 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,243 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,243 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-28 11:32:23,243 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,243 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-28 11:32:23,243 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,244 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,244 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,244 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,244 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,244 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:32:23 BoogieIcfgContainer [2018-11-28 11:32:23,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 11:32:23,247 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:32:23,247 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:32:23,247 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:32:23,248 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:28:02" (3/4) ... [2018-11-28 11:32:23,250 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 11:32:23,255 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 11:32:23,255 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 11:32:23,257 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-28 11:32:23,258 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 11:32:23,275 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_main_~main__x~0_11 : C_DOUBLE :: main__x == ~fp.div~DOUBLE(~roundNearestTiesToEven, v_main_~main__x~0_11, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) && !~fp.eq~DOUBLE(~fp.div~DOUBLE(~roundNearestTiesToEven, v_main_~main__x~0_11, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)), v_main_~main__x~0_11)) && ~fp.div~DOUBLE(~roundNearestTiesToEven, main__x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) == main__x1) || (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == main__x && main__x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) [2018-11-28 11:32:23,284 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_43ad1151-e8ec-43a0-bc3b-ef58a0859a6e/bin-2019/uautomizer/witness.graphml [2018-11-28 11:32:23,284 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:32:23,284 INFO L168 Benchmark]: Toolchain (without parser) took 262024.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -72.2 MB). Peak memory consumption was 74.1 MB. Max. memory is 11.5 GB. [2018-11-28 11:32:23,285 INFO L168 Benchmark]: CDTParser took 0.17 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. [2018-11-28 11:32:23,285 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.73 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:32:23,286 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.04 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:32:23,286 INFO L168 Benchmark]: Boogie Preprocessor took 16.41 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. [2018-11-28 11:32:23,286 INFO L168 Benchmark]: RCFGBuilder took 810.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -197.6 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:32:23,287 INFO L168 Benchmark]: TraceAbstraction took 260997.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 102.8 MB). Peak memory consumption was 102.8 MB. Max. memory is 11.5 GB. [2018-11-28 11:32:23,287 INFO L168 Benchmark]: Witness Printer took 36.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:32:23,290 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 145.73 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.04 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.41 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 810.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -197.6 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 260997.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 102.8 MB). Peak memory consumption was 102.8 MB. Max. memory is 11.5 GB. * Witness Printer took 36.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,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_~main__x~0_11,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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,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_~main__x~0_11,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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: 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: 6]: Loop Invariant [2018-11-28 11:32:23,297 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,297 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-28 11:32:23,298 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,298 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,298 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-28 11:32:23,298 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,298 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-28 11:32:23,298 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,299 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,299 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,299 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,299 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,299 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,300 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,300 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-28 11:32:23,300 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,300 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,301 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-28 11:32:23,301 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,301 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-28 11:32:23,301 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,301 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,301 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,302 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,302 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 11:32:23,302 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\exists v_main_~main__x~0_11 : C_DOUBLE :: main__x == ~fp.div~DOUBLE(~roundNearestTiesToEven, v_main_~main__x~0_11, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) && !~fp.eq~DOUBLE(~fp.div~DOUBLE(~roundNearestTiesToEven, v_main_~main__x~0_11, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)), v_main_~main__x~0_11)) && ~fp.div~DOUBLE(~roundNearestTiesToEven, main__x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) == main__x1) || (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == main__x && main__x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 14 locations, 1 error locations. SAFE Result, 260.9s OverallTime, 4 OverallIterations, 5 TraceHistogramMax, 32.8s AutomataDifference, 0.0s DeadEndRemovalTime, 78.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 37 SDtfs, 1 SDslu, 86 SDs, 0 SdLazy, 34 SolverSat, 4 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 19.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 48 SyntacticMatches, 6 SemanticMatches, 26 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 74.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, 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, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 49 HoareAnnotationTreeSize, 5 FomulaSimplifications, 148 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 121 FormulaSimplificationTreeSizeReductionInter, 78.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 37.0s SatisfiabilityAnalysisTime, 111.2s InterpolantComputationTime, 59 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 61 ConstructedInterpolants, 3 QuantifiedInterpolants, 5048 SizeOfPredicates, 15 NumberOfNonLiveVariables, 96 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 14/29 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...