./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c --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_041df997-8955-4c3b-9e98-f91ba7e52dda/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c -s /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/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 0fa375491f6ee23468a1ede5cb9608fff6035ced .............................................................................................................................................................................................................................................................................................. 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_041df997-8955-4c3b-9e98-f91ba7e52dda/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c -s /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/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 0fa375491f6ee23468a1ede5cb9608fff6035ced .............................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 08:57:04,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:04,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:04,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:04,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:04,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:04,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:04,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:04,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:04,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:04,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:04,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:04,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:04,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:04,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:04,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:04,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:04,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:04,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:04,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:04,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:04,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:04,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:04,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:04,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:04,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:04,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:04,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:04,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:04,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:04,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:04,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:04,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:04,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:04,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:04,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:04,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:04,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:04,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:04,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:04,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:04,395 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:57:04,413 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:04,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:04,418 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:04,418 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:04,418 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:04,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:04,419 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:57:04,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:04,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:57:04,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:04,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:57:04,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:57:04,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:57:04,420 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:57:04,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:04,420 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:04,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:57:04,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:04,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:04,421 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:57:04,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:57:04,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:04,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:04,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:57:04,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:57:04,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:57:04,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:57:04,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:57:04,422 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_041df997-8955-4c3b-9e98-f91ba7e52dda/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 -> 0fa375491f6ee23468a1ede5cb9608fff6035ced [2019-10-22 08:57:04,460 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:04,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:04,473 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:04,476 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:04,476 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:04,477 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-10-22 08:57:04,533 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/bin/uautomizer/data/b796fff46/087c6536d9ac4de4a1eb77c07d6f151e/FLAG2517a060e [2019-10-22 08:57:04,921 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:04,922 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-10-22 08:57:04,928 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/bin/uautomizer/data/b796fff46/087c6536d9ac4de4a1eb77c07d6f151e/FLAG2517a060e [2019-10-22 08:57:04,938 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/bin/uautomizer/data/b796fff46/087c6536d9ac4de4a1eb77c07d6f151e [2019-10-22 08:57:04,941 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:04,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:04,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:04,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:04,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:04,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:04" (1/1) ... [2019-10-22 08:57:04,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d1824c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:04, skipping insertion in model container [2019-10-22 08:57:04,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:04" (1/1) ... [2019-10-22 08:57:04,958 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:04,975 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:05,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:05,253 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:05,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:05,316 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:05,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05 WrapperNode [2019-10-22 08:57:05,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:05,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:05,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:05,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:05,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (1/1) ... [2019-10-22 08:57:05,338 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (1/1) ... [2019-10-22 08:57:05,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:05,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:05,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:05,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:05,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (1/1) ... [2019-10-22 08:57:05,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (1/1) ... [2019-10-22 08:57:05,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (1/1) ... [2019-10-22 08:57:05,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (1/1) ... [2019-10-22 08:57:05,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (1/1) ... [2019-10-22 08:57:05,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (1/1) ... [2019-10-22 08:57:05,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (1/1) ... [2019-10-22 08:57:05,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:05,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:05,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:05,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:05,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/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 08:57:05,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-10-22 08:57:05,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:57:05,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-22 08:57:05,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:05,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:57:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:57:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:57:05,754 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:05,754 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-10-22 08:57:05,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:05 BoogieIcfgContainer [2019-10-22 08:57:05,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:05,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:57:05,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:57:05,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:57:05,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:57:04" (1/3) ... [2019-10-22 08:57:05,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229e9d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:05, skipping insertion in model container [2019-10-22 08:57:05,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:05" (2/3) ... [2019-10-22 08:57:05,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229e9d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:05, skipping insertion in model container [2019-10-22 08:57:05,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:05" (3/3) ... [2019-10-22 08:57:05,770 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2019-10-22 08:57:05,790 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:57:05,804 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:57:05,823 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:57:05,854 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:57:05,854 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:57:05,855 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:57:05,855 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:05,855 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:05,855 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:57:05,855 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:05,855 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:57:05,875 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-10-22 08:57:05,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 08:57:05,883 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:05,884 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:05,886 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:05,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:05,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2019-10-22 08:57:05,899 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:05,900 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095048341] [2019-10-22 08:57:05,900 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:05,900 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:05,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:05,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:06,013 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 08:57:06,014 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095048341] [2019-10-22 08:57:06,015 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:06,015 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:57:06,015 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405529710] [2019-10-22 08:57:06,020 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:57:06,020 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:06,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:57:06,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:57:06,037 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-10-22 08:57:06,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:06,057 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2019-10-22 08:57:06,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:57:06,058 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-10-22 08:57:06,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:06,068 INFO L225 Difference]: With dead ends: 66 [2019-10-22 08:57:06,069 INFO L226 Difference]: Without dead ends: 31 [2019-10-22 08:57:06,072 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:57:06,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-22 08:57:06,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-10-22 08:57:06,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-22 08:57:06,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2019-10-22 08:57:06,106 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2019-10-22 08:57:06,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:06,106 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2019-10-22 08:57:06,106 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:57:06,106 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2019-10-22 08:57:06,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 08:57:06,107 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:06,107 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:06,107 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:06,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:06,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2019-10-22 08:57:06,108 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:06,108 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066431884] [2019-10-22 08:57:06,108 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:06,108 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:06,109 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:06,189 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:06,189 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:57:06,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:57:06 BoogieIcfgContainer [2019-10-22 08:57:06,210 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:57:06,210 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:57:06,211 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:57:06,211 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:57:06,211 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:05" (3/4) ... [2019-10-22 08:57:06,214 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:57:06,215 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:57:06,216 INFO L168 Benchmark]: Toolchain (without parser) took 1274.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 188.7 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:06,217 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 08:57:06,218 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 188.7 MB). Free memory was 945.9 MB in the beginning and 1.2 GB in the end (delta: -233.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:06,218 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.53 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 08:57:06,218 INFO L168 Benchmark]: Boogie Preprocessor took 27.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:06,219 INFO L168 Benchmark]: RCFGBuilder took 371.63 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:06,220 INFO L168 Benchmark]: TraceAbstraction took 454.02 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: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:06,220 INFO L168 Benchmark]: Witness Printer took 4.14 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 08:57:06,223 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 374.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 188.7 MB). Free memory was 945.9 MB in the beginning and 1.2 GB in the end (delta: -233.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.53 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 27.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 371.63 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 454.02 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: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 93]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 38, overapproximation of someBinaryArithmeticDOUBLEoperation at line 88, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 80. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L88] double x = 0.0 / 0.0; [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L26] COND TRUE j0 < 20 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L89] double res = floor_double(x); [L80] return x != x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L92] COND TRUE !isnan_double(res) [L93] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 08:57:08,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:08,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:08,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:08,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:08,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:08,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:08,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:08,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:08,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:08,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:08,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:08,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:08,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:08,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:08,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:08,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:08,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:08,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:08,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:08,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:08,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:08,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:08,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:08,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:08,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:08,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:08,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:08,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:08,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:08,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:08,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:08,393 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:08,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:08,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:08,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:08,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:08,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:08,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:08,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:08,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:08,399 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 08:57:08,415 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:08,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:08,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:08,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:08,417 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:08,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:08,417 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:57:08,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:57:08,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:08,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:57:08,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:57:08,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:57:08,429 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:57:08,429 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:57:08,430 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:57:08,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:08,430 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:08,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:57:08,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:08,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:08,431 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:57:08,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:57:08,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:08,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:08,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:57:08,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:57:08,432 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:57:08,432 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:57:08,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:57:08,432 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:57:08,432 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_041df997-8955-4c3b-9e98-f91ba7e52dda/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 -> 0fa375491f6ee23468a1ede5cb9608fff6035ced [2019-10-22 08:57:08,466 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:08,485 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:08,488 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:08,489 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:08,489 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:08,490 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-10-22 08:57:08,552 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/bin/uautomizer/data/924160192/d671aae319e7407baafef95395257671/FLAGa13c05ac4 [2019-10-22 08:57:08,963 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:08,963 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-10-22 08:57:08,970 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/bin/uautomizer/data/924160192/d671aae319e7407baafef95395257671/FLAGa13c05ac4 [2019-10-22 08:57:09,326 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/bin/uautomizer/data/924160192/d671aae319e7407baafef95395257671 [2019-10-22 08:57:09,328 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:09,330 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:09,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:09,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:09,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:09,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:09" (1/1) ... [2019-10-22 08:57:09,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79894f7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:09, skipping insertion in model container [2019-10-22 08:57:09,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:09" (1/1) ... [2019-10-22 08:57:09,344 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:09,361 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:09,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:09,529 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:09,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:09,654 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:09,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:09 WrapperNode [2019-10-22 08:57:09,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:09,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:09,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:09,656 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:09,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:09" (1/1) ... [2019-10-22 08:57:09,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:09" (1/1) ... [2019-10-22 08:57:09,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:09,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:09,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:09,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:09,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:09" (1/1) ... [2019-10-22 08:57:09,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:09" (1/1) ... [2019-10-22 08:57:09,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:09" (1/1) ... [2019-10-22 08:57:09,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:09" (1/1) ... [2019-10-22 08:57:09,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:09" (1/1) ... [2019-10-22 08:57:09,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:09" (1/1) ... [2019-10-22 08:57:09,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:09" (1/1) ... [2019-10-22 08:57:09,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:09,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:09,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:09,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:09,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/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 08:57:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-10-22 08:57:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 08:57:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-10-22 08:57:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:09,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:57:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 08:57:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:57:10,740 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:10,741 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-10-22 08:57:10,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:10 BoogieIcfgContainer [2019-10-22 08:57:10,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:10,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:57:10,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:57:10,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:57:10,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:57:09" (1/3) ... [2019-10-22 08:57:10,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9b62a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:10, skipping insertion in model container [2019-10-22 08:57:10,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:09" (2/3) ... [2019-10-22 08:57:10,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9b62a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:10, skipping insertion in model container [2019-10-22 08:57:10,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:10" (3/3) ... [2019-10-22 08:57:10,748 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2019-10-22 08:57:10,755 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:57:10,762 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:57:10,772 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:57:10,793 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:57:10,794 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:57:10,794 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:57:10,794 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:10,794 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:10,795 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:57:10,795 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:10,795 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:57:10,808 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-10-22 08:57:10,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 08:57:10,813 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:10,814 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:10,816 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:10,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:10,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2019-10-22 08:57:10,827 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:57:10,827 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225031552] [2019-10-22 08:57:10,828 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/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 08:57:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:10,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 08:57:10,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:10,905 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 08:57:10,905 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:57:10,909 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 08:57:10,910 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225031552] [2019-10-22 08:57:10,911 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:10,911 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 08:57:10,911 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405354899] [2019-10-22 08:57:10,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:57:10,915 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:57:10,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:57:10,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:57:10,927 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-10-22 08:57:10,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:10,945 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2019-10-22 08:57:10,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:57:10,946 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-10-22 08:57:10,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:10,956 INFO L225 Difference]: With dead ends: 66 [2019-10-22 08:57:10,956 INFO L226 Difference]: Without dead ends: 31 [2019-10-22 08:57:10,959 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:57:10,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-22 08:57:10,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-10-22 08:57:10,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-22 08:57:10,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2019-10-22 08:57:10,992 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2019-10-22 08:57:10,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:10,992 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2019-10-22 08:57:10,992 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:57:10,992 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2019-10-22 08:57:10,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 08:57:10,993 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:10,993 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:11,202 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 08:57:11,202 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:11,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:11,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2019-10-22 08:57:11,203 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:57:11,203 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1743724632] [2019-10-22 08:57:11,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/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 08:57:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:11,274 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 08:57:11,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:11,350 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 08:57:11,350 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:57:11,394 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 08:57:11,394 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1743724632] [2019-10-22 08:57:11,394 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:11,395 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-10-22 08:57:11,395 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437117813] [2019-10-22 08:57:11,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:57:11,397 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:57:11,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:57:11,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:57:11,397 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand 8 states. [2019-10-22 08:57:12,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:12,086 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2019-10-22 08:57:12,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:57:12,087 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2019-10-22 08:57:12,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:12,088 INFO L225 Difference]: With dead ends: 42 [2019-10-22 08:57:12,088 INFO L226 Difference]: Without dead ends: 21 [2019-10-22 08:57:12,089 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:57:12,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-22 08:57:12,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-10-22 08:57:12,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-22 08:57:12,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-10-22 08:57:12,093 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2019-10-22 08:57:12,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:12,094 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-10-22 08:57:12,094 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:57:12,094 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-10-22 08:57:12,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 08:57:12,095 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:12,095 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:12,295 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 08:57:12,296 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:12,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:12,296 INFO L82 PathProgramCache]: Analyzing trace with hash -649399050, now seen corresponding path program 1 times [2019-10-22 08:57:12,297 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:57:12,297 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [421854689] [2019-10-22 08:57:12,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/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 08:57:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:12,431 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 08:57:12,434 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:12,498 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 08:57:12,498 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:57:12,621 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 08:57:12,622 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [421854689] [2019-10-22 08:57:12,622 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:12,622 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 08:57:12,622 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113293779] [2019-10-22 08:57:12,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:57:12,623 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:57:12,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:57:12,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:57:12,624 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2019-10-22 08:57:12,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:12,752 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-10-22 08:57:12,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:57:12,754 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-10-22 08:57:12,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:12,754 INFO L225 Difference]: With dead ends: 21 [2019-10-22 08:57:12,754 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:57:12,755 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-10-22 08:57:12,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:57:12,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:57:12,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:57:12,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:57:12,756 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-10-22 08:57:12,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:12,756 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:57:12,756 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:57:12,757 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:57:12,757 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:57:12,966 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-10-22 08:57:12,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:57:13,039 INFO L443 ceAbstractionStarter]: For program point L93(line 93) no Hoare annotation was computed. [2019-10-22 08:57:13,039 INFO L443 ceAbstractionStarter]: For program point L27(lines 27 46) no Hoare annotation was computed. [2019-10-22 08:57:13,039 INFO L443 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2019-10-22 08:57:13,039 INFO L439 ceAbstractionStarter]: At program point L19-2(lines 19 24) the Hoare annotation is: (= ULTIMATE.start_floor_double_~x (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53))) [2019-10-22 08:57:13,039 INFO L443 ceAbstractionStarter]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2019-10-22 08:57:13,040 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:57:13,040 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:57:13,040 INFO L443 ceAbstractionStarter]: For program point L28(lines 28 35) no Hoare annotation was computed. [2019-10-22 08:57:13,040 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 93) no Hoare annotation was computed. [2019-10-22 08:57:13,040 INFO L443 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2019-10-22 08:57:13,040 INFO L443 ceAbstractionStarter]: For program point L70-1(lines 16 77) no Hoare annotation was computed. [2019-10-22 08:57:13,040 INFO L443 ceAbstractionStarter]: For program point L70-2(lines 70 75) no Hoare annotation was computed. [2019-10-22 08:57:13,041 INFO L443 ceAbstractionStarter]: For program point L62(lines 62 63) no Hoare annotation was computed. [2019-10-22 08:57:13,041 INFO L443 ceAbstractionStarter]: For program point L29(lines 29 34) no Hoare annotation was computed. [2019-10-22 08:57:13,041 INFO L443 ceAbstractionStarter]: For program point L62-2(lines 62 63) no Hoare annotation was computed. [2019-10-22 08:57:13,041 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 55) no Hoare annotation was computed. [2019-10-22 08:57:13,041 INFO L443 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-10-22 08:57:13,041 INFO L439 ceAbstractionStarter]: At program point L80(line 80) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= |ULTIMATE.start_floor_double_#res| .cse0) (= ULTIMATE.start_floor_double_~x .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|))) [2019-10-22 08:57:13,041 INFO L443 ceAbstractionStarter]: For program point L47(lines 47 69) no Hoare annotation was computed. [2019-10-22 08:57:13,042 INFO L446 ceAbstractionStarter]: At program point L97(lines 82 98) the Hoare annotation is: true [2019-10-22 08:57:13,042 INFO L443 ceAbstractionStarter]: For program point L31(lines 31 34) no Hoare annotation was computed. [2019-10-22 08:57:13,043 INFO L443 ceAbstractionStarter]: For program point L56(lines 56 68) no Hoare annotation was computed. [2019-10-22 08:57:13,043 INFO L443 ceAbstractionStarter]: For program point L48(lines 48 51) no Hoare annotation was computed. [2019-10-22 08:57:13,043 INFO L443 ceAbstractionStarter]: For program point L40(lines 40 45) no Hoare annotation was computed. [2019-10-22 08:57:13,043 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 08:57:13,043 INFO L443 ceAbstractionStarter]: For program point L57(lines 57 66) no Hoare annotation was computed. [2019-10-22 08:57:13,043 INFO L443 ceAbstractionStarter]: For program point L57-1(lines 57 66) no Hoare annotation was computed. [2019-10-22 08:57:13,044 INFO L443 ceAbstractionStarter]: For program point L41(lines 41 42) no Hoare annotation was computed. [2019-10-22 08:57:13,044 INFO L443 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-10-22 08:57:13,044 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:57:13,044 INFO L443 ceAbstractionStarter]: For program point L58(lines 58 65) no Hoare annotation was computed. [2019-10-22 08:57:13,044 INFO L443 ceAbstractionStarter]: For program point L92(lines 92 95) no Hoare annotation was computed. [2019-10-22 08:57:13,044 INFO L443 ceAbstractionStarter]: For program point L26(lines 26 69) no Hoare annotation was computed. [2019-10-22 08:57:13,044 INFO L439 ceAbstractionStarter]: At program point L76(lines 16 77) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= |ULTIMATE.start_floor_double_#res| .cse0) (= ULTIMATE.start_floor_double_~x .cse0))) [2019-10-22 08:57:13,052 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:13,053 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:13,057 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:13,057 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:13,058 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:13,061 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:13,062 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:13,062 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:13,062 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:13,063 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:13,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:57:13 BoogieIcfgContainer [2019-10-22 08:57:13,073 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:57:13,074 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:57:13,074 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:57:13,074 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:57:13,075 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:10" (3/4) ... [2019-10-22 08:57:13,078 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:57:13,090 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-10-22 08:57:13,091 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 08:57:13,122 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-10-22 08:57:13,123 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result [2019-10-22 08:57:13,159 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_041df997-8955-4c3b-9e98-f91ba7e52dda/bin/uautomizer/witness.graphml [2019-10-22 08:57:13,161 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:57:13,163 INFO L168 Benchmark]: Toolchain (without parser) took 3833.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 951.0 MB in the beginning and 1.0 GB in the end (delta: -50.7 MB). Peak memory consumption was 92.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:13,164 INFO L168 Benchmark]: CDTParser took 0.16 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 08:57:13,164 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:13,164 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.08 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:13,165 INFO L168 Benchmark]: Boogie Preprocessor took 30.11 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 08:57:13,165 INFO L168 Benchmark]: RCFGBuilder took 1018.98 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:13,165 INFO L168 Benchmark]: TraceAbstraction took 2330.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 96.7 MB). Peak memory consumption was 96.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:13,166 INFO L168 Benchmark]: Witness Printer took 87.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:13,171 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 324.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.08 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.11 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. * RCFGBuilder took 1018.98 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2330.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 96.7 MB). Peak memory consumption was 96.7 MB. Max. memory is 11.5 GB. * Witness Printer took 87.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 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 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.traceabstraction: - PositiveResult [Line: 93]: 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: 80]: Loop Invariant [2019-10-22 08:57:13,176 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:13,176 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:13,177 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:13,177 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant [2019-10-22 08:57:13,177 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:13,178 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 16]: Loop Invariant [2019-10-22 08:57:13,178 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:13,178 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:13,178 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:57:13,178 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 68 SDtfs, 27 SDslu, 75 SDs, 0 SdLazy, 60 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 36 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 4 QuantifiedInterpolants, 3206 SizeOfPredicates, 14 NumberOfNonLiveVariables, 108 ConjunctsInSsa, 19 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...