./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.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_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/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 73dc70fc086318c728ead326eb8ef835fee9f9a2 ................................................................................................................................................................................................................................................................................................ 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_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/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 73dc70fc086318c728ead326eb8ef835fee9f9a2 ............................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:00:09,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:09,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:09,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:09,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:09,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:09,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:09,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:09,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:09,469 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:09,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:09,470 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:09,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:09,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:09,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:09,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:09,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:09,475 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:09,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:09,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:09,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:09,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:09,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:09,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:09,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:09,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:09,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:09,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:09,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:09,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:09,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:09,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:09,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:09,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:09,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:09,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:09,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:09,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:09,490 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:09,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:09,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:09,492 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:00:09,503 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:09,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:09,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:09,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:09,504 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:09,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:09,505 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:09,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:09,505 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:09,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:09,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:00:09,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:09,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:00:09,506 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:09,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:00:09,506 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:09,506 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:00:09,506 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:09,506 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:09,507 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:09,507 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:09,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:09,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:09,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:09,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:00:09,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:00:09,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:00:09,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:00:09,509 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_03efc736-c9e1-4b23-aac1-1a106c85f023/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 -> 73dc70fc086318c728ead326eb8ef835fee9f9a2 [2019-10-22 09:00:09,533 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:09,544 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:09,547 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:09,548 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:09,549 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:09,549 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-10-22 09:00:09,598 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/data/fdbebead6/01badf9971e245c595b46ba57dc69861/FLAGc1862736d [2019-10-22 09:00:09,991 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:09,992 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-10-22 09:00:09,999 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/data/fdbebead6/01badf9971e245c595b46ba57dc69861/FLAGc1862736d [2019-10-22 09:00:10,010 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/data/fdbebead6/01badf9971e245c595b46ba57dc69861 [2019-10-22 09:00:10,012 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:10,013 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:00:10,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:10,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:10,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:10,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:10" (1/1) ... [2019-10-22 09:00:10,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42db30af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:10, skipping insertion in model container [2019-10-22 09:00:10,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:10" (1/1) ... [2019-10-22 09:00:10,028 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:10,046 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:10,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:10,284 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:10,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:10,332 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:10,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:10 WrapperNode [2019-10-22 09:00:10,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:10,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:10,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:00:10,333 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:00:10,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:10" (1/1) ... [2019-10-22 09:00:10,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:10" (1/1) ... [2019-10-22 09:00:10,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:10,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:10,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:10,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:10,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:10" (1/1) ... [2019-10-22 09:00:10,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:10" (1/1) ... [2019-10-22 09:00:10,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:10" (1/1) ... [2019-10-22 09:00:10,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:10" (1/1) ... [2019-10-22 09:00:10,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:10" (1/1) ... [2019-10-22 09:00:10,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:10" (1/1) ... [2019-10-22 09:00:10,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:10" (1/1) ... [2019-10-22 09:00:10,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:10,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:10,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:10,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:10,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:00:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:00:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-10-22 09:00:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-22 09:00:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:00:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-10-22 09:00:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:00:10,909 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:10,910 INFO L284 CfgBuilder]: Removed 20 assume(true) statements. [2019-10-22 09:00:10,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:10 BoogieIcfgContainer [2019-10-22 09:00:10,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:10,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:00:10,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:00:10,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:00:10,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:10" (1/3) ... [2019-10-22 09:00:10,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50be7965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:10, skipping insertion in model container [2019-10-22 09:00:10,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:10" (2/3) ... [2019-10-22 09:00:10,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50be7965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:10, skipping insertion in model container [2019-10-22 09:00:10,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:10" (3/3) ... [2019-10-22 09:00:10,918 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2019-10-22 09:00:10,924 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:00:10,930 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 09:00:10,937 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 09:00:10,956 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:00:10,957 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:00:10,957 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:00:10,957 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:10,957 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:10,957 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:00:10,957 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:10,957 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:00:10,969 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-10-22 09:00:10,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 09:00:10,975 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:10,975 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:10,977 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:10,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:10,982 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-10-22 09:00:10,990 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:10,990 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130567310] [2019-10-22 09:00:10,991 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:10,992 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:10,992 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:11,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:11,100 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130567310] [2019-10-22 09:00:11,101 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:11,102 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:00:11,102 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49493881] [2019-10-22 09:00:11,106 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 09:00:11,106 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:11,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 09:00:11,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:00:11,121 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-10-22 09:00:11,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:11,141 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-10-22 09:00:11,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 09:00:11,143 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-22 09:00:11,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:11,153 INFO L225 Difference]: With dead ends: 82 [2019-10-22 09:00:11,153 INFO L226 Difference]: Without dead ends: 39 [2019-10-22 09:00:11,156 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 09:00:11,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-22 09:00:11,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-10-22 09:00:11,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-22 09:00:11,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-10-22 09:00:11,198 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-10-22 09:00:11,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:11,198 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-10-22 09:00:11,199 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 09:00:11,199 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-10-22 09:00:11,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 09:00:11,199 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:11,199 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:11,200 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:11,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:11,200 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-10-22 09:00:11,200 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:11,200 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187409119] [2019-10-22 09:00:11,200 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:11,201 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:11,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:11,386 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:11,387 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:00:11,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:00:11 BoogieIcfgContainer [2019-10-22 09:00:11,419 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:00:11,420 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:11,420 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:11,420 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:11,420 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:10" (3/4) ... [2019-10-22 09:00:11,424 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:00:11,424 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:11,426 INFO L168 Benchmark]: Toolchain (without parser) took 1412.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -128.9 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:11,426 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:11,427 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -192.1 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:11,427 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:11,428 INFO L168 Benchmark]: Boogie Preprocessor took 59.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:11,428 INFO L168 Benchmark]: RCFGBuilder took 467.70 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: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:11,428 INFO L168 Benchmark]: TraceAbstraction took 507.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:11,429 INFO L168 Benchmark]: Witness Printer took 4.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:11,432 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 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 319.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -192.1 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.70 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 467.70 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: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 507.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.64 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: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 108, overapproximation of someUnaryDOUBLEoperation at line 14, overapproximation of bitwiseAnd at line 30, overapproximation of someUnaryFLOAToperation at line 117, overapproximation of bitwiseXor at line 31, overapproximation of someBinaryArithmeticFLOAToperation at line 35. Possible FailurePath: [L12-L15] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={1:0}] [L116] float x = __VERIFIER_nondet_float(); [L117] float y = -0.0f; [L18] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={1:0}] [L21] ieee_float_shape_type gf_u; [L22] gf_u.value = (x) [L23] EXPR gf_u.word [L23] (hx) = gf_u.word [L26] ieee_float_shape_type gf_u; [L27] gf_u.value = (y) [L28] EXPR gf_u.word [L28] (hy) = gf_u.word [L30] sx = hx & 0x80000000 [L31] hx ^= sx [L32] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={1:0}] [L34] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L35] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={1:0}] [L118] float res = fmod_float(x, y); [L108] return x != x; VAL [one_fmod=1, Zero_fmod={1:0}] [L121] COND TRUE !isnan_float(res) [L122] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 57 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=42occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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 09:00:13,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:13,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:13,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:13,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:13,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:13,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:13,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:13,490 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:13,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:13,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:13,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:13,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:13,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:13,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:13,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:13,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:13,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:13,500 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:13,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:13,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:13,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:13,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:13,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:13,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:13,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:13,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:13,511 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:13,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:13,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:13,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:13,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:13,514 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:13,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:13,516 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:13,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:13,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:13,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:13,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:13,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:13,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:13,520 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 09:00:13,533 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:13,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:13,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:13,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:13,535 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:13,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:13,535 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:13,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:13,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:13,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:00:13,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:13,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:00:13,537 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 09:00:13,537 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 09:00:13,537 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:13,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:00:13,537 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:13,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:00:13,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:13,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:13,538 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:13,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:13,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:13,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:13,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:13,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:00:13,541 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 09:00:13,541 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 09:00:13,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:00:13,542 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 09:00:13,542 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_03efc736-c9e1-4b23-aac1-1a106c85f023/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 -> 73dc70fc086318c728ead326eb8ef835fee9f9a2 [2019-10-22 09:00:13,570 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:13,581 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:13,584 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:13,585 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:13,586 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:13,586 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-10-22 09:00:13,635 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/data/da756461b/58f7e3b759b84117a8ec2b10e0d80843/FLAG77c40b86a [2019-10-22 09:00:14,032 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:14,033 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-10-22 09:00:14,039 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/data/da756461b/58f7e3b759b84117a8ec2b10e0d80843/FLAG77c40b86a [2019-10-22 09:00:14,389 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/data/da756461b/58f7e3b759b84117a8ec2b10e0d80843 [2019-10-22 09:00:14,392 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:14,393 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:00:14,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:14,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:14,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:14,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:14" (1/1) ... [2019-10-22 09:00:14,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f58d8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:14, skipping insertion in model container [2019-10-22 09:00:14,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:14" (1/1) ... [2019-10-22 09:00:14,410 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:14,432 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:14,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:14,651 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:14,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:14,785 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:14,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:14 WrapperNode [2019-10-22 09:00:14,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:14,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:14,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:00:14,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:00:14,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:14" (1/1) ... [2019-10-22 09:00:14,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:14" (1/1) ... [2019-10-22 09:00:14,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:14,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:14,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:14,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:14,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:14" (1/1) ... [2019-10-22 09:00:14,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:14" (1/1) ... [2019-10-22 09:00:14,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:14" (1/1) ... [2019-10-22 09:00:14,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:14" (1/1) ... [2019-10-22 09:00:14,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:14" (1/1) ... [2019-10-22 09:00:14,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:14" (1/1) ... [2019-10-22 09:00:14,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:14" (1/1) ... [2019-10-22 09:00:14,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:14,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:14,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:14,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:14,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:14,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-10-22 09:00:14,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:00:14,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-10-22 09:00:14,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 09:00:14,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:14,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-10-22 09:00:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 09:00:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:00:15,986 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:15,986 INFO L284 CfgBuilder]: Removed 20 assume(true) statements. [2019-10-22 09:00:15,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:15 BoogieIcfgContainer [2019-10-22 09:00:15,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:15,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:00:15,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:00:15,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:00:15,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:14" (1/3) ... [2019-10-22 09:00:15,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb6fcc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:15, skipping insertion in model container [2019-10-22 09:00:15,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:14" (2/3) ... [2019-10-22 09:00:15,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb6fcc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:15, skipping insertion in model container [2019-10-22 09:00:15,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:15" (3/3) ... [2019-10-22 09:00:15,994 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2019-10-22 09:00:16,003 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:00:16,010 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 09:00:16,020 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 09:00:16,042 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:00:16,042 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:00:16,043 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:00:16,043 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:16,043 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:16,043 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:00:16,043 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:16,043 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:00:16,054 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-10-22 09:00:16,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 09:00:16,059 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:16,060 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:16,061 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:16,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:16,065 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-10-22 09:00:16,072 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:00:16,073 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034771207] [2019-10-22 09:00:16,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-10-22 09:00:16,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:16,373 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 09:00:16,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:16,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:16,386 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:00:16,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:16,390 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034771207] [2019-10-22 09:00:16,391 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:16,391 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 09:00:16,391 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621550152] [2019-10-22 09:00:16,395 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 09:00:16,396 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:00:16,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 09:00:16,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:00:16,410 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-10-22 09:00:16,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:16,430 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-10-22 09:00:16,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 09:00:16,431 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-22 09:00:16,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:16,440 INFO L225 Difference]: With dead ends: 82 [2019-10-22 09:00:16,440 INFO L226 Difference]: Without dead ends: 39 [2019-10-22 09:00:16,443 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 09:00:16,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-22 09:00:16,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-10-22 09:00:16,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-22 09:00:16,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-10-22 09:00:16,474 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-10-22 09:00:16,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:16,474 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-10-22 09:00:16,474 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 09:00:16,474 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-10-22 09:00:16,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 09:00:16,475 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:16,475 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:16,676 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 09:00:16,676 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:16,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:16,676 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-10-22 09:00:16,677 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:00:16,677 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [884837381] [2019-10-22 09:00:16,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-10-22 09:00:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:16,961 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 09:00:16,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:18,153 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-10-22 09:00:18,156 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:19,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:19,248 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:00:22,868 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x c_ULTIMATE.start_fmod_float_~y))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2019-10-22 09:00:22,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:22,981 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [884837381] [2019-10-22 09:00:22,981 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:22,981 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-10-22 09:00:22,981 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357005558] [2019-10-22 09:00:22,988 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 09:00:22,988 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:00:22,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 09:00:22,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=54, Unknown=1, NotChecked=14, Total=90 [2019-10-22 09:00:22,989 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 10 states. [2019-10-22 09:00:26,492 WARN L191 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 8 [2019-10-22 09:00:27,946 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 11 [2019-10-22 09:00:28,930 WARN L191 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 13 [2019-10-22 09:00:28,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:28,958 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2019-10-22 09:00:28,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:00:28,959 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-10-22 09:00:28,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:28,960 INFO L225 Difference]: With dead ends: 44 [2019-10-22 09:00:28,960 INFO L226 Difference]: Without dead ends: 39 [2019-10-22 09:00:28,961 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=45, Invalid=90, Unknown=1, NotChecked=20, Total=156 [2019-10-22 09:00:28,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-22 09:00:28,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-10-22 09:00:28,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-22 09:00:28,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-10-22 09:00:28,966 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2019-10-22 09:00:28,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:28,967 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-10-22 09:00:28,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 09:00:28,967 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2019-10-22 09:00:28,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 09:00:28,967 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:28,968 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:29,175 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 09:00:29,176 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:29,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:29,176 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2019-10-22 09:00:29,176 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:00:29,177 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807253101] [2019-10-22 09:00:29,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-10-22 09:00:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:29,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 09:00:29,250 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:29,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:29,292 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:00:29,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:29,337 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807253101] [2019-10-22 09:00:29,337 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:29,337 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 09:00:29,337 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018558120] [2019-10-22 09:00:29,338 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 09:00:29,338 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:00:29,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 09:00:29,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:00:29,339 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 8 states. [2019-10-22 09:00:29,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:29,397 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2019-10-22 09:00:29,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:00:29,397 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2019-10-22 09:00:29,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:29,397 INFO L225 Difference]: With dead ends: 39 [2019-10-22 09:00:29,397 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 09:00:29,398 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-10-22 09:00:29,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 09:00:29,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 09:00:29,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 09:00:29,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 09:00:29,399 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-10-22 09:00:29,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:29,400 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:00:29,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 09:00:29,400 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:00:29,400 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 09:00:29,601 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-10-22 09:00:29,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 09:00:29,677 INFO L446 ceAbstractionStarter]: At program point L126(lines 110 127) the Hoare annotation is: true [2019-10-22 09:00:29,677 INFO L443 ceAbstractionStarter]: For program point L52-1(lines 17 105) no Hoare annotation was computed. [2019-10-22 09:00:29,677 INFO L443 ceAbstractionStarter]: For program point L36(lines 36 37) no Hoare annotation was computed. [2019-10-22 09:00:29,677 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 09:00:29,677 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 09:00:29,677 INFO L443 ceAbstractionStarter]: For program point L86(lines 86 103) no Hoare annotation was computed. [2019-10-22 09:00:29,678 INFO L443 ceAbstractionStarter]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2019-10-22 09:00:29,678 INFO L439 ceAbstractionStarter]: At program point L20-2(lines 20 24) the Hoare annotation is: (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24))) [2019-10-22 09:00:29,678 INFO L443 ceAbstractionStarter]: For program point L70(lines 70 71) no Hoare annotation was computed. [2019-10-22 09:00:29,678 INFO L443 ceAbstractionStarter]: For program point L46(lines 17 105) no Hoare annotation was computed. [2019-10-22 09:00:29,678 INFO L439 ceAbstractionStarter]: At program point L104(lines 17 105) the Hoare annotation is: (and (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|)) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24)))) [2019-10-22 09:00:29,678 INFO L443 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-10-22 09:00:29,678 INFO L443 ceAbstractionStarter]: For program point L121(lines 121 124) no Hoare annotation was computed. [2019-10-22 09:00:29,678 INFO L443 ceAbstractionStarter]: For program point L88-1(lines 88 92) no Hoare annotation was computed. [2019-10-22 09:00:29,678 INFO L439 ceAbstractionStarter]: At program point L88-2(lines 88 92) the Hoare annotation is: false [2019-10-22 09:00:29,679 INFO L443 ceAbstractionStarter]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2019-10-22 09:00:29,679 INFO L439 ceAbstractionStarter]: At program point L47-3(lines 47 48) the Hoare annotation is: false [2019-10-22 09:00:29,679 INFO L443 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-10-22 09:00:29,679 INFO L439 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-10-22 09:00:29,679 INFO L443 ceAbstractionStarter]: For program point L97-3(lines 97 101) no Hoare annotation was computed. [2019-10-22 09:00:29,680 INFO L443 ceAbstractionStarter]: For program point L122(line 122) no Hoare annotation was computed. [2019-10-22 09:00:29,680 INFO L443 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2019-10-22 09:00:29,680 INFO L443 ceAbstractionStarter]: For program point L40-1(lines 17 105) no Hoare annotation was computed. [2019-10-22 09:00:29,680 INFO L443 ceAbstractionStarter]: For program point L65-1(lines 65 74) no Hoare annotation was computed. [2019-10-22 09:00:29,680 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 09:00:29,680 INFO L443 ceAbstractionStarter]: For program point L65-3(lines 65 74) no Hoare annotation was computed. [2019-10-22 09:00:29,680 INFO L439 ceAbstractionStarter]: At program point L82-2(lines 82 85) the Hoare annotation is: false [2019-10-22 09:00:29,680 INFO L443 ceAbstractionStarter]: For program point L82-3(lines 17 105) no Hoare annotation was computed. [2019-10-22 09:00:29,680 INFO L443 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-10-22 09:00:29,681 INFO L439 ceAbstractionStarter]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2019-10-22 09:00:29,681 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2019-10-22 09:00:29,681 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 09:00:29,681 INFO L443 ceAbstractionStarter]: For program point L25(lines 25 29) no Hoare annotation was computed. [2019-10-22 09:00:29,681 INFO L443 ceAbstractionStarter]: For program point L58-1(lines 58 63) no Hoare annotation was computed. [2019-10-22 09:00:29,681 INFO L443 ceAbstractionStarter]: For program point L25-1(lines 17 105) no Hoare annotation was computed. [2019-10-22 09:00:29,681 INFO L443 ceAbstractionStarter]: For program point L25-2(lines 25 29) no Hoare annotation was computed. [2019-10-22 09:00:29,682 INFO L439 ceAbstractionStarter]: At program point L108(line 108) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|)) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24)))) [2019-10-22 09:00:29,682 INFO L443 ceAbstractionStarter]: For program point L67(lines 67 73) no Hoare annotation was computed. [2019-10-22 09:00:29,682 INFO L443 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-10-22 09:00:29,682 INFO L439 ceAbstractionStarter]: At program point L67-2(lines 65 74) the Hoare annotation is: false [2019-10-22 09:00:29,682 INFO L443 ceAbstractionStarter]: For program point L76(lines 76 78) no Hoare annotation was computed. [2019-10-22 09:00:29,682 INFO L443 ceAbstractionStarter]: For program point L76-2(lines 17 105) no Hoare annotation was computed. [2019-10-22 09:00:29,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:00:29 BoogieIcfgContainer [2019-10-22 09:00:29,694 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:00:29,695 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:29,695 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:29,695 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:29,696 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:15" (3/4) ... [2019-10-22 09:00:29,699 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 09:00:29,713 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 09:00:29,713 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 09:00:29,758 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_03efc736-c9e1-4b23-aac1-1a106c85f023/bin/uautomizer/witness.graphml [2019-10-22 09:00:29,758 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:29,760 INFO L168 Benchmark]: Toolchain (without parser) took 15365.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 951.0 MB in the beginning and 992.2 MB in the end (delta: -41.2 MB). Peak memory consumption was 101.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:29,760 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:29,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -180.9 MB). Peak memory consumption was 29.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:29,761 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:29,761 INFO L168 Benchmark]: Boogie Preprocessor took 40.11 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 09:00:29,762 INFO L168 Benchmark]: RCFGBuilder took 1119.32 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: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:29,762 INFO L168 Benchmark]: TraceAbstraction took 13706.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 998.6 MB in the end (delta: 100.7 MB). Peak memory consumption was 100.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:29,763 INFO L168 Benchmark]: Witness Printer took 62.88 ms. Allocated memory is still 1.2 GB. Free memory was 998.6 MB in the beginning and 992.2 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:29,768 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 391.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -180.9 MB). Peak memory consumption was 29.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.43 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. * Boogie Preprocessor took 40.11 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 1119.32 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: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13706.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 998.6 MB in the end (delta: 100.7 MB). Peak memory consumption was 100.7 MB. Max. memory is 11.5 GB. * Witness Printer took 62.88 ms. Allocated memory is still 1.2 GB. Free memory was 998.6 MB in the beginning and 992.2 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 122]: 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: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: (1bv32 == \result && !~fp.eq~FLOAT(\result, \result)) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(\result, \result) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: SAFE, OverallTime: 13.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 112 SDtfs, 56 SDslu, 202 SDs, 0 SdLazy, 32 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 2 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 11.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 32 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 11 QuantifiedInterpolants, 3851 SizeOfPredicates, 15 NumberOfNonLiveVariables, 148 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...