./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0141f30eebc41972a05a5b9a00ccec3818dc94e8 ......................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0141f30eebc41972a05a5b9a00ccec3818dc94e8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:01:52,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:52,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:52,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:52,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:52,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:52,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:52,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:52,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:52,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:52,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:52,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:52,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:52,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:52,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:52,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:52,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:52,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:52,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:52,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:52,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:52,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:52,395 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:52,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:52,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:52,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:52,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:52,399 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:52,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:52,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:52,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:52,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:52,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:52,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:52,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:52,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:52,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:52,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:52,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:52,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:52,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:52,412 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:01:52,423 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:52,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:52,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:52,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:52,425 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:52,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:52,425 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:01:52,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:52,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:01:52,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:52,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:01:52,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:01:52,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:01:52,426 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:01:52,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:01:52,426 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:52,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:01:52,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:52,427 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:52,427 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:01:52,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:01:52,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:01:52,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:52,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:01:52,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:01:52,428 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:01:52,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:01:52,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:01:52,428 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0141f30eebc41972a05a5b9a00ccec3818dc94e8 [2019-10-22 09:01:52,453 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:52,466 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:52,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:52,470 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:52,471 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:52,472 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float20.i [2019-10-22 09:01:52,528 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/data/30c9cd4f3/3ec7eb1d091b4cdf9426830e9b318116/FLAG9b11d1619 [2019-10-22 09:01:52,918 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:52,919 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/sv-benchmarks/c/floats-cbmc-regression/float20.i [2019-10-22 09:01:52,925 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/data/30c9cd4f3/3ec7eb1d091b4cdf9426830e9b318116/FLAG9b11d1619 [2019-10-22 09:01:52,938 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/data/30c9cd4f3/3ec7eb1d091b4cdf9426830e9b318116 [2019-10-22 09:01:52,940 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:52,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:01:52,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:52,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:52,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:52,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:52" (1/1) ... [2019-10-22 09:01:52,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15ee72df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:52, skipping insertion in model container [2019-10-22 09:01:52,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:52" (1/1) ... [2019-10-22 09:01:52,958 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:52,969 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:53,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:53,140 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:53,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:53,232 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:53,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:53 WrapperNode [2019-10-22 09:01:53,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:53,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:53,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:01:53,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:01:53,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:53" (1/1) ... [2019-10-22 09:01:53,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:53" (1/1) ... [2019-10-22 09:01:53,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:53,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:53,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:53,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:53,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:53" (1/1) ... [2019-10-22 09:01:53,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:53" (1/1) ... [2019-10-22 09:01:53,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:53" (1/1) ... [2019-10-22 09:01:53,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:53" (1/1) ... [2019-10-22 09:01:53,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:53" (1/1) ... [2019-10-22 09:01:53,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:53" (1/1) ... [2019-10-22 09:01:53,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:53" (1/1) ... [2019-10-22 09:01:53,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:53,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:53,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:53,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:53,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:01:53,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:53,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:53,447 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:53,447 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-22 09:01:53,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:53 BoogieIcfgContainer [2019-10-22 09:01:53,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:53,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:01:53,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:01:53,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:01:53,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:01:52" (1/3) ... [2019-10-22 09:01:53,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c40d8c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:53, skipping insertion in model container [2019-10-22 09:01:53,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:53" (2/3) ... [2019-10-22 09:01:53,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c40d8c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:53, skipping insertion in model container [2019-10-22 09:01:53,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:53" (3/3) ... [2019-10-22 09:01:53,454 INFO L109 eAbstractionObserver]: Analyzing ICFG float20.i [2019-10-22 09:01:53,462 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:01:53,469 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 09:01:53,479 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 09:01:53,500 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:01:53,500 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:01:53,500 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:01:53,500 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:53,500 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:53,500 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:01:53,500 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:53,501 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:01:53,513 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-10-22 09:01:53,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 09:01:53,518 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:53,518 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 09:01:53,520 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:53,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:53,525 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-10-22 09:01:53,532 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:53,533 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023946678] [2019-10-22 09:01:53,533 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:53,533 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:53,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:53,628 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:53,628 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:01:53,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:01:53 BoogieIcfgContainer [2019-10-22 09:01:53,641 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:01:53,641 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:53,641 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:53,641 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:53,642 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:53" (3/4) ... [2019-10-22 09:01:53,645 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:01:53,645 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:53,648 INFO L168 Benchmark]: Toolchain (without parser) took 704.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:53,648 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:53,649 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -214.6 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:53,650 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:53,650 INFO L168 Benchmark]: Boogie Preprocessor took 13.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:53,651 INFO L168 Benchmark]: RCFGBuilder took 174.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:53,651 INFO L168 Benchmark]: TraceAbstraction took 191.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:53,652 INFO L168 Benchmark]: Witness Printer took 4.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:53,654 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 289.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -214.6 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 174.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 191.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 10, overapproximation of someBinaryArithmeticDOUBLEoperation at line 7, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L37] float f=__VERIFIER_nondet_float(); [L7] float modifier = (0x1.0p-23 * (1<<1)); [L8] float ulpdiff = min * modifier; [L10] COND TRUE !(ulpdiff == 0x1p-126f) [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 3 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 09:01:55,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:55,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:55,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:55,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:55,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:55,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:55,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:55,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:55,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:55,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:55,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:55,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:55,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:55,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:55,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:55,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:55,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:55,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:55,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:55,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:55,672 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:55,673 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:55,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:55,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:55,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:55,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:55,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:55,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:55,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:55,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:55,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:55,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:55,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:55,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:55,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:55,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:55,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:55,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:55,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:55,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:55,693 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 09:01:55,716 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:55,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:55,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:55,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:55,723 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:55,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:55,723 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:01:55,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:01:55,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:55,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:01:55,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:01:55,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:01:55,724 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 09:01:55,724 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 09:01:55,725 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:01:55,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:01:55,725 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:55,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:01:55,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:55,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:55,726 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:01:55,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:01:55,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:01:55,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:55,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:01:55,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:01:55,729 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 09:01:55,729 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 09:01:55,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:01:55,729 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 09:01:55,729 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0141f30eebc41972a05a5b9a00ccec3818dc94e8 [2019-10-22 09:01:55,764 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:55,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:55,779 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:55,781 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:55,781 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:55,782 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float20.i [2019-10-22 09:01:55,832 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/data/1ef9a5584/a28332225b5a47aaad05b3f4b253d43e/FLAG79ec313c4 [2019-10-22 09:01:56,230 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:56,231 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/sv-benchmarks/c/floats-cbmc-regression/float20.i [2019-10-22 09:01:56,236 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/data/1ef9a5584/a28332225b5a47aaad05b3f4b253d43e/FLAG79ec313c4 [2019-10-22 09:01:56,609 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/data/1ef9a5584/a28332225b5a47aaad05b3f4b253d43e [2019-10-22 09:01:56,611 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:56,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:01:56,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:56,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:56,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:56,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:56" (1/1) ... [2019-10-22 09:01:56,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a85fa81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:56, skipping insertion in model container [2019-10-22 09:01:56,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:56" (1/1) ... [2019-10-22 09:01:56,627 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:56,644 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:56,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:56,852 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:56,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:56,889 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:56,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:56 WrapperNode [2019-10-22 09:01:56,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:56,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:56,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:01:56,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:01:56,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:56" (1/1) ... [2019-10-22 09:01:56,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:56" (1/1) ... [2019-10-22 09:01:56,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:56,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:56,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:56,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:56,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:56" (1/1) ... [2019-10-22 09:01:56,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:56" (1/1) ... [2019-10-22 09:01:56,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:56" (1/1) ... [2019-10-22 09:01:56,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:56" (1/1) ... [2019-10-22 09:01:57,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:56" (1/1) ... [2019-10-22 09:01:57,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:56" (1/1) ... [2019-10-22 09:01:57,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:56" (1/1) ... [2019-10-22 09:01:57,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:57,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:57,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:57,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:57,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:01:57,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:57,536 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:57,536 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-22 09:01:57,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:57 BoogieIcfgContainer [2019-10-22 09:01:57,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:57,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:01:57,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:01:57,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:01:57,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:01:56" (1/3) ... [2019-10-22 09:01:57,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df0d32d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:57, skipping insertion in model container [2019-10-22 09:01:57,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:56" (2/3) ... [2019-10-22 09:01:57,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df0d32d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:57, skipping insertion in model container [2019-10-22 09:01:57,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:57" (3/3) ... [2019-10-22 09:01:57,551 INFO L109 eAbstractionObserver]: Analyzing ICFG float20.i [2019-10-22 09:01:57,560 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:01:57,567 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 09:01:57,577 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 09:01:57,601 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:01:57,601 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:01:57,601 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:01:57,601 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:57,601 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:57,601 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:01:57,602 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:57,602 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:01:57,612 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-10-22 09:01:57,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 09:01:57,618 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:57,618 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 09:01:57,620 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:57,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:57,624 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-10-22 09:01:57,631 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:01:57,631 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734658151] [2019-10-22 09:01:57,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-10-22 09:01:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:57,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:01:57,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:57,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:57,881 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:01:57,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:57,939 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1734658151] [2019-10-22 09:01:57,939 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:57,940 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 09:01:57,940 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732065978] [2019-10-22 09:01:57,943 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:01:57,943 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:01:57,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:01:57,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:01:57,958 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2019-10-22 09:01:58,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:58,024 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2019-10-22 09:01:58,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:01:58,028 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-10-22 09:01:58,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:58,037 INFO L225 Difference]: With dead ends: 28 [2019-10-22 09:01:58,037 INFO L226 Difference]: Without dead ends: 10 [2019-10-22 09:01:58,041 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:01:58,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-10-22 09:01:58,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-10-22 09:01:58,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-10-22 09:01:58,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2019-10-22 09:01:58,068 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 3 [2019-10-22 09:01:58,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:58,068 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2019-10-22 09:01:58,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:01:58,069 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2019-10-22 09:01:58,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 09:01:58,069 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:58,069 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 09:01:58,270 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 09:01:58,270 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:58,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:58,270 INFO L82 PathProgramCache]: Analyzing trace with hash 29802020, now seen corresponding path program 1 times [2019-10-22 09:01:58,271 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:01:58,271 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112538622] [2019-10-22 09:01:58,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-10-22 09:01:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:58,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 09:01:58,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:00,999 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 19 [2019-10-22 09:02:01,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:01,331 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:02:02,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:02,687 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112538622] [2019-10-22 09:02:02,687 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:02,687 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-22 09:02:02,688 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030600498] [2019-10-22 09:02:02,689 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:02:02,689 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:02:02,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:02:02,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:02:02,689 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand 4 states. [2019-10-22 09:02:03,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:03,749 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2019-10-22 09:02:03,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:03,751 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-10-22 09:02:03,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:03,756 INFO L225 Difference]: With dead ends: 10 [2019-10-22 09:02:03,756 INFO L226 Difference]: Without dead ends: 8 [2019-10-22 09:02:03,757 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:02:03,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-10-22 09:02:03,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-10-22 09:02:03,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-10-22 09:02:03,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2019-10-22 09:02:03,759 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 5 [2019-10-22 09:02:03,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:03,759 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2019-10-22 09:02:03,760 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:02:03,760 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2019-10-22 09:02:03,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 09:02:03,760 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:03,760 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:03,960 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 09:02:03,961 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:03,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:03,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1424904153, now seen corresponding path program 1 times [2019-10-22 09:02:03,962 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:02:03,962 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910427305] [2019-10-22 09:02:03,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-10-22 09:02:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:04,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-22 09:02:04,206 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:04,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:04,376 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:02:04,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:04,495 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [910427305] [2019-10-22 09:02:04,495 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:04,495 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-22 09:02:04,496 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584301110] [2019-10-22 09:02:04,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:02:04,496 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:02:04,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:02:04,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:02:04,496 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand 4 states. [2019-10-22 09:02:04,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:04,563 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2019-10-22 09:02:04,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:04,563 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-10-22 09:02:04,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:04,563 INFO L225 Difference]: With dead ends: 8 [2019-10-22 09:02:04,564 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 09:02:04,564 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:02:04,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 09:02:04,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 09:02:04,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 09:02:04,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 09:02:04,565 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-10-22 09:02:04,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:04,565 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:04,565 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:02:04,565 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:02:04,566 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 09:02:04,766 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-10-22 09:02:04,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 09:02:04,828 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 09:02:04,828 INFO L443 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2019-10-22 09:02:04,828 INFO L443 ceAbstractionStarter]: For program point L31-1(line 31) no Hoare annotation was computed. [2019-10-22 09:02:04,828 INFO L439 ceAbstractionStarter]: At program point L31-3(lines 26 34) the Hoare annotation is: (fp.eq ULTIMATE.start_bug_~ulpdiff~0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0))) [2019-10-22 09:02:04,828 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-10-22 09:02:04,828 INFO L443 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2019-10-22 09:02:04,829 INFO L443 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2019-10-22 09:02:04,829 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 31) no Hoare annotation was computed. [2019-10-22 09:02:04,829 INFO L439 ceAbstractionStarter]: At program point L21-3(lines 15 24) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0)))) (and (fp.eq ULTIMATE.start_bugBrokenOut_~ulpdiff~1 .cse0) (fp.eq ULTIMATE.start_bug_~ulpdiff~0 .cse0))) [2019-10-22 09:02:04,829 INFO L439 ceAbstractionStarter]: At program point L46(lines 36 47) the Hoare annotation is: (fp.eq ULTIMATE.start_bug_~ulpdiff~0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0))) [2019-10-22 09:02:04,829 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 09:02:04,829 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 09:02:04,829 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2019-10-22 09:02:04,829 INFO L443 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2019-10-22 09:02:04,830 INFO L443 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2019-10-22 09:02:04,830 INFO L439 ceAbstractionStarter]: At program point L10-3(lines 5 13) the Hoare annotation is: (fp.eq ULTIMATE.start_bug_~ulpdiff~0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0))) [2019-10-22 09:02:04,835 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:04,836 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE [2019-10-22 09:02:04,837 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:04,837 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE [2019-10-22 09:02:04,837 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:04,837 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE [2019-10-22 09:02:04,838 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:04,838 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE [2019-10-22 09:02:04,838 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:04,839 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:04,841 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:04,841 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:04,841 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:04,842 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE [2019-10-22 09:02:04,842 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:04,842 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE [2019-10-22 09:02:04,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:02:04 BoogieIcfgContainer [2019-10-22 09:02:04,844 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:02:04,844 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:04,844 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:04,844 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:04,845 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:57" (3/4) ... [2019-10-22 09:02:04,847 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 09:02:04,855 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-10-22 09:02:04,855 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 09:02:04,893 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2275f23d-8c93-4488-ae35-e45dbd69d980/bin/uautomizer/witness.graphml [2019-10-22 09:02:04,893 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:04,895 INFO L168 Benchmark]: Toolchain (without parser) took 8282.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -114.2 MB). Peak memory consumption was 37.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:04,895 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:04,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.80 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 934.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:04,896 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -212.6 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:04,897 INFO L168 Benchmark]: Boogie Preprocessor took 19.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:04,898 INFO L168 Benchmark]: RCFGBuilder took 530.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:04,898 INFO L168 Benchmark]: TraceAbstraction took 7306.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 62.5 MB). Peak memory consumption was 62.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:04,898 INFO L168 Benchmark]: Witness Printer took 49.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:04,900 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 276.80 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 934.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 96.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -212.6 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 530.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7306.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 62.5 MB). Peak memory consumption was 62.5 MB. Max. memory is 11.5 GB. * Witness Printer took 49.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~fp.eq~DOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~fp.eq~DOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~fp.eq~DOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~fp.eq~DOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~fp.eq~DOUBLE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation could not match function ~fp.eq~DOUBLE * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 31]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 21]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant [2019-10-22 09:02:04,906 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:04,907 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE [2019-10-22 09:02:04,907 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:04,908 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE Derived loop invariant: NULL - InvariantResult [Line: 5]: Loop Invariant [2019-10-22 09:02:04,908 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:04,908 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE [2019-10-22 09:02:04,908 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:04,908 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE Derived loop invariant: NULL - InvariantResult [Line: 15]: Loop Invariant [2019-10-22 09:02:04,909 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:04,909 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:04,909 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:04,910 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~fp.eq~DOUBLE(ulpdiff, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/85070591730234615865843651857942052864)) && ~fp.eq~DOUBLE(ulpdiff, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/85070591730234615865843651857942052864)) - InvariantResult [Line: 36]: Loop Invariant [2019-10-22 09:02:04,910 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:04,910 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE [2019-10-22 09:02:04,911 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:04,911 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation could not match function ~fp.eq~DOUBLE Derived loop invariant: NULL - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 3 error locations. Result: SAFE, OverallTime: 7.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 16 SDslu, 6 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 26 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 3 QuantifiedInterpolants, 376 SizeOfPredicates, 9 NumberOfNonLiveVariables, 52 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...