./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8571d6e044ba86c3b82c24f6ff451bf497f2aedf ............................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8571d6e044ba86c3b82c24f6ff451bf497f2aedf .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 18:40:40,530 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 18:40:40,531 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 18:40:40,538 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 18:40:40,539 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 18:40:40,539 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 18:40:40,540 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 18:40:40,541 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 18:40:40,542 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 18:40:40,542 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 18:40:40,543 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 18:40:40,543 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 18:40:40,544 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 18:40:40,545 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 18:40:40,545 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 18:40:40,546 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 18:40:40,546 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 18:40:40,547 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 18:40:40,548 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 18:40:40,549 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 18:40:40,550 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 18:40:40,550 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 18:40:40,551 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 18:40:40,552 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 18:40:40,552 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 18:40:40,552 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 18:40:40,553 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 18:40:40,553 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 18:40:40,553 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 18:40:40,554 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 18:40:40,554 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 18:40:40,555 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 18:40:40,555 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 18:40:40,555 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 18:40:40,556 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 18:40:40,557 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 18:40:40,557 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 18:40:40,564 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 18:40:40,564 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 18:40:40,565 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 18:40:40,565 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 18:40:40,565 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 18:40:40,565 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 18:40:40,565 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 18:40:40,565 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 18:40:40,565 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 18:40:40,566 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 18:40:40,566 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 18:40:40,566 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 18:40:40,566 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 18:40:40,566 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 18:40:40,566 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 18:40:40,566 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 18:40:40,566 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 18:40:40,566 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 18:40:40,566 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 18:40:40,566 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 18:40:40,567 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 18:40:40,567 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 18:40:40,567 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 18:40:40,567 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 18:40:40,567 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 18:40:40,567 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 18:40:40,567 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 18:40:40,567 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 18:40:40,567 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 18:40:40,567 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 18:40:40,568 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_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8571d6e044ba86c3b82c24f6ff451bf497f2aedf [2018-12-02 18:40:40,586 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 18:40:40,593 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 18:40:40,595 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 18:40:40,596 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 18:40:40,596 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 18:40:40,596 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i [2018-12-02 18:40:40,630 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/data/358e552d4/baa975e96170480484578e655863a379/FLAGd1f293922 [2018-12-02 18:40:40,974 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 18:40:40,974 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i [2018-12-02 18:40:40,978 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/data/358e552d4/baa975e96170480484578e655863a379/FLAGd1f293922 [2018-12-02 18:40:41,370 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/data/358e552d4/baa975e96170480484578e655863a379 [2018-12-02 18:40:41,373 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 18:40:41,374 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 18:40:41,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 18:40:41,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 18:40:41,377 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 18:40:41,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:40:41" (1/1) ... [2018-12-02 18:40:41,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@343f3083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:41, skipping insertion in model container [2018-12-02 18:40:41,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:40:41" (1/1) ... [2018-12-02 18:40:41,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 18:40:41,397 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 18:40:41,485 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 18:40:41,488 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 18:40:41,496 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 18:40:41,504 INFO L195 MainTranslator]: Completed translation [2018-12-02 18:40:41,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:41 WrapperNode [2018-12-02 18:40:41,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 18:40:41,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 18:40:41,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 18:40:41,505 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 18:40:41,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:41" (1/1) ... [2018-12-02 18:40:41,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:41" (1/1) ... [2018-12-02 18:40:41,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 18:40:41,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 18:40:41,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 18:40:41,521 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 18:40:41,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:41" (1/1) ... [2018-12-02 18:40:41,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:41" (1/1) ... [2018-12-02 18:40:41,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:41" (1/1) ... [2018-12-02 18:40:41,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:41" (1/1) ... [2018-12-02 18:40:41,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:41" (1/1) ... [2018-12-02 18:40:41,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:41" (1/1) ... [2018-12-02 18:40:41,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:41" (1/1) ... [2018-12-02 18:40:41,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 18:40:41,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 18:40:41,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 18:40:41,566 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 18:40:41,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 18:40:41,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 18:40:41,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 18:40:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 18:40:41,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 18:40:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 18:40:41,598 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 18:40:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-02 18:40:41,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-02 18:40:41,674 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 18:40:41,674 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-02 18:40:41,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:40:41 BoogieIcfgContainer [2018-12-02 18:40:41,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 18:40:41,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 18:40:41,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 18:40:41,677 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 18:40:41,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:40:41" (1/3) ... [2018-12-02 18:40:41,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ea3207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:40:41, skipping insertion in model container [2018-12-02 18:40:41,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:41" (2/3) ... [2018-12-02 18:40:41,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ea3207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:40:41, skipping insertion in model container [2018-12-02 18:40:41,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:40:41" (3/3) ... [2018-12-02 18:40:41,679 INFO L112 eAbstractionObserver]: Analyzing ICFG Double_div_true-unreach-call.i [2018-12-02 18:40:41,685 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 18:40:41,689 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 18:40:41,702 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 18:40:41,727 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 18:40:41,727 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 18:40:41,727 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 18:40:41,727 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 18:40:41,727 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 18:40:41,727 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 18:40:41,727 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 18:40:41,728 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 18:40:41,728 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 18:40:41,738 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-12-02 18:40:41,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 18:40:41,741 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 18:40:41,742 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 18:40:41,743 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 18:40:41,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:40:41,746 INFO L82 PathProgramCache]: Analyzing trace with hash -14991171, now seen corresponding path program 1 times [2018-12-02 18:40:41,747 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 18:40:41,748 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 18:40:41,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:40:41,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 18:40:41,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:40:41,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 18:40:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 18:40:41,811 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 18:40:41,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:40:41 BoogieIcfgContainer [2018-12-02 18:40:41,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 18:40:41,824 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 18:40:41,824 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 18:40:41,824 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 18:40:41,824 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:40:41" (3/4) ... [2018-12-02 18:40:41,826 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 18:40:41,827 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 18:40:41,827 INFO L168 Benchmark]: Toolchain (without parser) took 453.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -134.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 18:40:41,828 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. [2018-12-02 18:40:41,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 129.48 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 18:40:41,829 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.44 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 18:40:41,829 INFO L168 Benchmark]: Boogie Preprocessor took 44.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -176.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2018-12-02 18:40:41,830 INFO L168 Benchmark]: RCFGBuilder took 108.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2018-12-02 18:40:41,830 INFO L168 Benchmark]: TraceAbstraction took 149.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-02 18:40:41,830 INFO L168 Benchmark]: Witness Printer took 2.74 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 18:40:41,832 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 129.48 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 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 16.44 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -176.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 108.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 149.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.74 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 2]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of someBinaryArithmeticDOUBLEoperation at line 10. Possible FailurePath: [L9] double x = 1.0; [L10] double x1 = x/2.5; VAL [x=1] [L12] COND FALSE !(x1 != x) VAL [x=1] [L18] CALL __VERIFIER_assert(x == 0) VAL [\old(cond)=0] [L2] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L2] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-02 18:40:43,187 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 18:40:43,188 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 18:40:43,195 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 18:40:43,195 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 18:40:43,196 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 18:40:43,196 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 18:40:43,197 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 18:40:43,198 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 18:40:43,199 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 18:40:43,200 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 18:40:43,200 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 18:40:43,200 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 18:40:43,201 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 18:40:43,202 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 18:40:43,202 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 18:40:43,203 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 18:40:43,204 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 18:40:43,205 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 18:40:43,206 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 18:40:43,207 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 18:40:43,208 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 18:40:43,209 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 18:40:43,210 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 18:40:43,210 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 18:40:43,211 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 18:40:43,211 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 18:40:43,212 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 18:40:43,212 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 18:40:43,213 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 18:40:43,213 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 18:40:43,214 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 18:40:43,214 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 18:40:43,214 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 18:40:43,215 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 18:40:43,215 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 18:40:43,215 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-02 18:40:43,225 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 18:40:43,225 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 18:40:43,226 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 18:40:43,226 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 18:40:43,226 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 18:40:43,226 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 18:40:43,226 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 18:40:43,227 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 18:40:43,227 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 18:40:43,227 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 18:40:43,227 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 18:40:43,227 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 18:40:43,227 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 18:40:43,227 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 18:40:43,227 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 18:40:43,227 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 18:40:43,227 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 18:40:43,228 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 18:40:43,228 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 18:40:43,228 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 18:40:43,228 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 18:40:43,228 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 18:40:43,228 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 18:40:43,228 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 18:40:43,228 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 18:40:43,229 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 18:40:43,229 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 18:40:43,229 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 18:40:43,229 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-02 18:40:43,229 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 18:40:43,229 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 18:40:43,229 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 18:40:43,229 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_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8571d6e044ba86c3b82c24f6ff451bf497f2aedf [2018-12-02 18:40:43,248 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 18:40:43,255 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 18:40:43,257 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 18:40:43,258 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 18:40:43,258 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 18:40:43,259 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i [2018-12-02 18:40:43,294 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/data/f6ff4b29b/f2a8054c88a24a1f9fc19cd88741b88a/FLAG99e2a26ba [2018-12-02 18:40:43,689 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 18:40:43,689 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i [2018-12-02 18:40:43,693 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/data/f6ff4b29b/f2a8054c88a24a1f9fc19cd88741b88a/FLAG99e2a26ba [2018-12-02 18:40:43,701 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/data/f6ff4b29b/f2a8054c88a24a1f9fc19cd88741b88a [2018-12-02 18:40:43,703 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 18:40:43,704 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 18:40:43,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 18:40:43,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 18:40:43,706 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 18:40:43,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:40:43" (1/1) ... [2018-12-02 18:40:43,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8f4428e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:43, skipping insertion in model container [2018-12-02 18:40:43,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:40:43" (1/1) ... [2018-12-02 18:40:43,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 18:40:43,722 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 18:40:43,806 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 18:40:43,810 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 18:40:43,818 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 18:40:43,826 INFO L195 MainTranslator]: Completed translation [2018-12-02 18:40:43,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:43 WrapperNode [2018-12-02 18:40:43,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 18:40:43,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 18:40:43,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 18:40:43,828 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 18:40:43,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:43" (1/1) ... [2018-12-02 18:40:43,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:43" (1/1) ... [2018-12-02 18:40:43,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 18:40:43,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 18:40:43,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 18:40:43,841 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 18:40:43,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:43" (1/1) ... [2018-12-02 18:40:43,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:43" (1/1) ... [2018-12-02 18:40:43,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:43" (1/1) ... [2018-12-02 18:40:43,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:43" (1/1) ... [2018-12-02 18:40:43,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:43" (1/1) ... [2018-12-02 18:40:43,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:43" (1/1) ... [2018-12-02 18:40:43,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:43" (1/1) ... [2018-12-02 18:40:43,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 18:40:43,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 18:40:43,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 18:40:43,856 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 18:40:43,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 18:40:43,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 18:40:43,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 18:40:43,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 18:40:43,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 18:40:43,917 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 18:40:43,917 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 18:40:43,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-02 18:40:43,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-02 18:40:44,583 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 18:40:44,583 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-02 18:40:44,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:40:44 BoogieIcfgContainer [2018-12-02 18:40:44,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 18:40:44,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 18:40:44,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 18:40:44,586 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 18:40:44,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:40:43" (1/3) ... [2018-12-02 18:40:44,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a238ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:40:44, skipping insertion in model container [2018-12-02 18:40:44,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:43" (2/3) ... [2018-12-02 18:40:44,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a238ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:40:44, skipping insertion in model container [2018-12-02 18:40:44,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:40:44" (3/3) ... [2018-12-02 18:40:44,588 INFO L112 eAbstractionObserver]: Analyzing ICFG Double_div_true-unreach-call.i [2018-12-02 18:40:44,594 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 18:40:44,598 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 18:40:44,606 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 18:40:44,623 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 18:40:44,623 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 18:40:44,623 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 18:40:44,623 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 18:40:44,623 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 18:40:44,623 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 18:40:44,623 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 18:40:44,624 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 18:40:44,624 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 18:40:44,633 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-12-02 18:40:44,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 18:40:44,636 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 18:40:44,637 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 18:40:44,638 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 18:40:44,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:40:44,642 INFO L82 PathProgramCache]: Analyzing trace with hash -14991171, now seen corresponding path program 1 times [2018-12-02 18:40:44,644 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 18:40:44,644 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-02 18:40:44,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 18:40:44,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:40:44,817 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 18:40:47,522 WARN L180 SmtUtils]: Spent 2.69 s on a formula simplification that was a NOOP. DAG size: 11 [2018-12-02 18:40:47,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:40:47,530 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 18:40:47,539 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 18:40:47,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 18:40:47,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 18:40:47,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 18:40:47,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 18:40:47,551 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2018-12-02 18:40:48,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 18:40:48,587 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2018-12-02 18:40:49,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 18:40:49,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-02 18:40:49,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 18:40:49,159 INFO L225 Difference]: With dead ends: 31 [2018-12-02 18:40:49,159 INFO L226 Difference]: Without dead ends: 12 [2018-12-02 18:40:49,161 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 18:40:49,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-12-02 18:40:49,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-02 18:40:49,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-02 18:40:49,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-12-02 18:40:49,181 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-12-02 18:40:49,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 18:40:49,182 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-12-02 18:40:49,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 18:40:49,182 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-12-02 18:40:49,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 18:40:49,182 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 18:40:49,182 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 18:40:49,182 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 18:40:49,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:40:49,183 INFO L82 PathProgramCache]: Analyzing trace with hash -429188558, now seen corresponding path program 1 times [2018-12-02 18:40:49,183 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 18:40:49,183 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-02 18:40:49,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 18:40:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:40:49,475 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 18:40:52,907 WARN L180 SmtUtils]: Spent 1.66 s on a formula simplification that was a NOOP. DAG size: 12 [2018-12-02 18:40:52,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:40:52,910 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 18:40:57,438 WARN L854 $PredicateComparison]: unable to prove that (not (fp.eq (fp.div roundNearestTiesToEven c_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x1~0)) is different from true [2018-12-02 18:40:57,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2018-12-02 18:40:57,457 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 18:40:57,457 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-12-02 18:40:57,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 18:40:57,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 18:40:57,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2018-12-02 18:40:57,458 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 6 states. [2018-12-02 18:40:59,663 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (and (= c_main_~x1~0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0)) (not (fp.eq (fp.div roundNearestTiesToEven c_main_~x1~0 .cse0) c_main_~x1~0)) (not (fp.eq c_main_~x1~0 c_main_~x~0)))) is different from true [2018-12-02 18:41:03,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 18:41:03,292 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-12-02 18:41:03,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 18:41:03,478 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-12-02 18:41:03,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 18:41:03,478 INFO L225 Difference]: With dead ends: 19 [2018-12-02 18:41:03,479 INFO L226 Difference]: Without dead ends: 14 [2018-12-02 18:41:03,479 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=12, Invalid=14, Unknown=2, NotChecked=14, Total=42 [2018-12-02 18:41:03,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-12-02 18:41:03,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-12-02 18:41:03,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-12-02 18:41:03,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-12-02 18:41:03,482 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-12-02 18:41:03,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 18:41:03,482 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-12-02 18:41:03,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 18:41:03,482 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-12-02 18:41:03,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 18:41:03,483 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 18:41:03,483 INFO L402 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 18:41:03,483 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 18:41:03,483 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:41:03,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1003863954, now seen corresponding path program 2 times [2018-12-02 18:41:03,484 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 18:41:03,484 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-02 18:41:03,487 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-12-02 18:41:04,015 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-02 18:41:04,015 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 18:41:04,056 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 18:41:10,194 WARN L180 SmtUtils]: Spent 1.76 s on a formula simplification that was a NOOP. DAG size: 14 [2018-12-02 18:41:10,197 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:41:10,197 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 18:41:21,087 WARN L854 $PredicateComparison]: unable to prove that (or (fp.eq c_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven c_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x1~0))) is different from true [2018-12-02 18:41:23,445 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven c_main_~x1~0 .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from false [2018-12-02 18:41:25,805 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven c_main_~x1~0 .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from true [2018-12-02 18:41:28,344 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~x1~0 .cse1) .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))) is different from false [2018-12-02 18:41:30,890 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~x1~0 .cse1) .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))) is different from true [2018-12-02 18:41:30,902 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2018-12-02 18:41:30,916 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 18:41:30,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9] total 13 [2018-12-02 18:41:30,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-02 18:41:30,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-02 18:41:30,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=71, Unknown=6, NotChecked=54, Total=156 [2018-12-02 18:41:30,917 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 13 states. [2018-12-02 18:41:33,470 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~x1~0 .cse1) .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 .cse2))) (= c_main_~x1~0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse1)) (or (fp.eq c_main_~x~0 .cse2) (not (fp.eq c_main_~x1~0 c_main_~x~0))))) is different from true [2018-12-02 18:41:35,877 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (and (= c_main_~x1~0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0) .cse0)) (let ((.cse1 (fp.div roundNearestTiesToEven c_main_~x1~0 .cse0))) (or (fp.eq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse1 .cse0) .cse1)))))) is different from true [2018-12-02 18:41:38,072 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (and (= c_main_~x1~0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0) .cse0) .cse0)) (or (fp.eq c_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven c_main_~x1~0 .cse0) c_main_~x1~0))))) is different from true [2018-12-02 18:41:45,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 18:41:45,393 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-12-02 18:41:45,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 18:41:45,394 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 13 [2018-12-02 18:41:45,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 18:41:45,394 INFO L225 Difference]: With dead ends: 24 [2018-12-02 18:41:45,394 INFO L226 Difference]: Without dead ends: 16 [2018-12-02 18:41:45,395 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.4s TimeCoverageRelationStatistics Valid=35, Invalid=90, Unknown=9, NotChecked=138, Total=272 [2018-12-02 18:41:45,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-12-02 18:41:45,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-12-02 18:41:45,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-12-02 18:41:45,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-12-02 18:41:45,399 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2018-12-02 18:41:45,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 18:41:45,399 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-12-02 18:41:45,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-02 18:41:45,399 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-12-02 18:41:45,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-02 18:41:45,400 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 18:41:45,400 INFO L402 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 18:41:45,400 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 18:41:45,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:41:45,400 INFO L82 PathProgramCache]: Analyzing trace with hash -517174030, now seen corresponding path program 3 times [2018-12-02 18:41:45,401 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 18:41:45,401 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-02 18:41:45,404 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-12-02 18:41:46,127 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-12-02 18:41:46,127 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 18:41:46,180 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 18:41:50,595 WARN L180 SmtUtils]: Spent 2.32 s on a formula simplification that was a NOOP. DAG size: 7 [2018-12-02 18:41:52,985 WARN L832 $PredicateComparison]: unable to prove that (and (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (and (= (fp.div roundNearestTiesToEven v_main_~x~0_13 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x~0) (not (fp.eq c_main_~x~0 v_main_~x~0_13)))) (= c_main_~x1~0 (fp.div roundNearestTiesToEven c_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) is different from false [2018-12-02 18:41:57,499 WARN L832 $PredicateComparison]: unable to prove that (and (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (and (= (fp.div roundNearestTiesToEven v_main_~x~0_13 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x~0) (not (fp.eq c_main_~x~0 v_main_~x~0_13)))) (fp.eq (fp.div roundNearestTiesToEven c_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x~0)) is different from false [2018-12-02 18:42:11,475 WARN L832 $PredicateComparison]: unable to prove that (or (and (exists ((v_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_~x~0_13 .cse1))) (and (not (fp.eq .cse0 v_main_~x~0_13)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) (= |c___VERIFIER_assert_#in~cond| (_ bv0 32))) (and (exists ((v_prenex_2 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse2 (fp.div roundNearestTiesToEven v_prenex_2 .cse3))) (and (fp.eq (fp.div roundNearestTiesToEven .cse2 .cse3) .cse2) (not (fp.eq .cse2 v_prenex_2)) (fp.eq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)))) is different from false [2018-12-02 18:42:23,809 WARN L832 $PredicateComparison]: unable to prove that (or (and (= (_ bv0 32) c___VERIFIER_assert_~cond) (exists ((v_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_~x~0_13 .cse1))) (and (not (fp.eq .cse0 v_main_~x~0_13)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)))))) (and (exists ((v_prenex_2 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse2 (fp.div roundNearestTiesToEven v_prenex_2 .cse3))) (and (fp.eq (fp.div roundNearestTiesToEven .cse2 .cse3) .cse2) (not (fp.eq .cse2 v_prenex_2)) (fp.eq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)))) is different from false [2018-12-02 18:42:31,011 WARN L832 $PredicateComparison]: unable to prove that (exists ((v_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_~x~0_13 .cse1))) (and (not (fp.eq .cse0 v_main_~x~0_13)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from false [2018-12-02 18:42:33,343 WARN L854 $PredicateComparison]: unable to prove that (exists ((v_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_~x~0_13 .cse1))) (and (not (fp.eq .cse0 v_main_~x~0_13)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from true [2018-12-02 18:42:33,345 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 1 not checked. [2018-12-02 18:42:33,345 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 18:43:17,254 WARN L180 SmtUtils]: Spent 14.54 s on a formula simplification that was a NOOP. DAG size: 13 [2018-12-02 18:43:24,372 WARN L832 $PredicateComparison]: unable to prove that (forall ((v_main_~x~0_15 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_15 .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 v_main_~x~0_15))))) is different from false [2018-12-02 18:43:26,760 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_main_~x~0_15 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_15 .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 v_main_~x~0_15))))) is different from true [2018-12-02 18:43:55,525 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 18:43:55,526 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 18:43:55,534 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-02 18:44:25,674 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-12-02 18:44:25,675 INFO L250 tOrderPrioritization]: Conjunction of SSA is unknown [2018-12-02 18:44:27,279 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-12-02 18:44:27,279 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-12-02 18:44:27,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 18:44:27,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 18:44:27,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=38, Unknown=16, NotChecked=102, Total=182 [2018-12-02 18:44:27,280 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 8 states. [2018-12-02 18:44:29,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 18:44:29,730 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-12-02 18:44:30,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 18:44:30,126 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-12-02 18:44:30,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 18:44:30,126 INFO L225 Difference]: With dead ends: 16 [2018-12-02 18:44:30,126 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 18:44:30,127 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 71.9s TimeCoverageRelationStatistics Valid=26, Invalid=38, Unknown=16, NotChecked=102, Total=182 [2018-12-02 18:44:30,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 18:44:30,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 18:44:30,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 18:44:30,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 18:44:30,127 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-12-02 18:44:30,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 18:44:30,127 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 18:44:30,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 18:44:30,128 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 18:44:30,128 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 18:44:30,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 18:44:31,822 WARN L180 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 44 DAG size of output: 1 [2018-12-02 18:44:51,687 WARN L180 SmtUtils]: Spent 19.86 s on a formula simplification that was a NOOP. DAG size: 18 [2018-12-02 18:46:10,961 WARN L180 SmtUtils]: Spent 1.32 m on a formula simplification. DAG size of input: 35 DAG size of output: 20 [2018-12-02 18:46:10,962 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-02 18:46:10,963 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 18:46:10,963 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 18:46:10,963 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 18:46:10,963 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 18:46:10,963 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 18:46:10,963 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 7 20) the Hoare annotation is: true [2018-12-02 18:46:10,963 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 7 20) no Hoare annotation was computed. [2018-12-02 18:46:10,963 INFO L448 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-12-02 18:46:10,963 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 7 20) no Hoare annotation was computed. [2018-12-02 18:46:10,963 INFO L444 ceAbstractionStarter]: At program point L12-2(lines 12 16) the Hoare annotation is: (let ((.cse0 (= main_~x1~0 (fp.div roundNearestTiesToEven main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))))) (or (and (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (and (= (fp.div roundNearestTiesToEven v_main_~x~0_13 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) main_~x~0) (not (fp.eq main_~x~0 v_main_~x~0_13)))) .cse0) (and (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) main_~x~0) .cse0))) [2018-12-02 18:46:10,964 INFO L444 ceAbstractionStarter]: At program point L12-3(lines 12 16) the Hoare annotation is: (or (and (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (and (= (fp.div roundNearestTiesToEven v_main_~x~0_13 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) main_~x~0) (not (fp.eq main_~x~0 v_main_~x~0_13)))) (fp.eq (fp.div roundNearestTiesToEven main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) main_~x~0)) (fp.eq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) [2018-12-02 18:46:10,964 INFO L448 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2018-12-02 18:46:10,964 INFO L448 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2018-12-02 18:46:10,964 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2018-12-02 18:46:10,964 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2018-12-02 18:46:10,964 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2018-12-02 18:46:10,964 INFO L448 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2018-12-02 18:46:10,970 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:10,970 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-12-02 18:46:10,971 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:10,971 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-12-02 18:46:10,971 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:10,971 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:10,971 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:10,971 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:10,972 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:10,974 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:10,974 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-12-02 18:46:10,975 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:10,975 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-12-02 18:46:10,975 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:10,975 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:10,975 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:10,975 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:10,976 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:10,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:46:10 BoogieIcfgContainer [2018-12-02 18:46:10,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 18:46:10,978 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 18:46:10,978 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 18:46:10,978 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 18:46:10,978 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:40:44" (3/4) ... [2018-12-02 18:46:10,981 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 18:46:10,985 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 18:46:10,985 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 18:46:10,985 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-02 18:46:10,988 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-02 18:46:10,988 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 18:46:10,988 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 18:46:11,003 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_main_~x~0_13 : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, v_main_~x~0_13, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) == x && !~fp.eq~DOUBLE(x, v_main_~x~0_13)) && x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) || (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x && x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) [2018-12-02 18:46:11,010 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fbb89f8e-5ed4-45a0-8fb6-8dde54e19e1e/bin-2019/uautomizer/witness.graphml [2018-12-02 18:46:11,010 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 18:46:11,011 INFO L168 Benchmark]: Toolchain (without parser) took 327307.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 944.7 MB in the beginning and 981.1 MB in the end (delta: -36.4 MB). Peak memory consumption was 109.4 MB. Max. memory is 11.5 GB. [2018-12-02 18:46:11,011 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 18:46:11,011 INFO L168 Benchmark]: CACSL2BoogieTranslator took 123.01 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 932.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-12-02 18:46:11,012 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.93 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. [2018-12-02 18:46:11,012 INFO L168 Benchmark]: Boogie Preprocessor took 15.13 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 18:46:11,012 INFO L168 Benchmark]: RCFGBuilder took 728.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -188.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-12-02 18:46:11,013 INFO L168 Benchmark]: TraceAbstraction took 326393.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 987.9 MB in the end (delta: 127.9 MB). Peak memory consumption was 127.9 MB. Max. memory is 11.5 GB. [2018-12-02 18:46:11,013 INFO L168 Benchmark]: Witness Printer took 32.78 ms. Allocated memory is still 1.2 GB. Free memory was 987.9 MB in the beginning and 981.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-02 18:46:11,015 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 123.01 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 932.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.93 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 15.13 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 728.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -188.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 326393.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 987.9 MB in the end (delta: 127.9 MB). Peak memory consumption was 127.9 MB. Max. memory is 11.5 GB. * Witness Printer took 32.78 ms. Allocated memory is still 1.2 GB. Free memory was 987.9 MB in the beginning and 981.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant [2018-12-02 18:46:11,019 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:11,019 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-12-02 18:46:11,019 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:11,019 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-12-02 18:46:11,019 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:11,019 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:11,019 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:11,019 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:11,019 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:11,020 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:11,020 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-12-02 18:46:11,020 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:11,020 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-12-02 18:46:11,020 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:11,020 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:11,020 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:11,020 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 18:46:11,021 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\exists v_main_~x~0_13 : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, v_main_~x~0_13, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) == x && !~fp.eq~DOUBLE(x, v_main_~x~0_13)) && x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) || (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x && x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 326.3s OverallTime, 4 OverallIterations, 5 TraceHistogramMax, 24.9s AutomataDifference, 0.0s DeadEndRemovalTime, 100.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 40 SDtfs, 2 SDslu, 102 SDs, 0 SdLazy, 42 SolverSat, 5 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 11.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 50 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 120.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 18 NumberOfFragments, 72 HoareAnnotationTreeSize, 11 FomulaSimplifications, 226 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 249 FormulaSimplificationTreeSizeReductionInter, 100.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 31.7s SatisfiabilityAnalysisTime, 166.9s InterpolantComputationTime, 64 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 67 ConstructedInterpolants, 5 QuantifiedInterpolants, 7126 SizeOfPredicates, 12 NumberOfNonLiveVariables, 100 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...