./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.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/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/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 2099bda96984d0e4445a07fd627008694b409440 ....................................................................................................................................................................................................................................................................................... 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/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/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 2099bda96984d0e4445a07fd627008694b409440 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 20:53:12,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:53:12,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:53:12,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:53:12,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:53:12,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:53:12,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:53:12,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:53:12,562 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:53:12,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:53:12,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:53:12,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:53:12,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:53:12,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:53:12,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:53:12,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:53:12,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:53:12,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:53:12,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:53:12,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:53:12,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:53:12,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:53:12,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:53:12,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:53:12,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:53:12,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:53:12,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:53:12,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:53:12,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:53:12,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:53:12,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:53:12,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:53:12,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:53:12,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:53:12,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:53:12,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:53:12,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:53:12,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:53:12,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:53:12,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:53:12,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:53:12,589 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 20:53:12,601 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:53:12,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:53:12,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:53:12,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:53:12,603 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:53:12,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:53:12,604 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:53:12,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:53:12,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:53:12,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:53:12,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:53:12,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:53:12,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:53:12,605 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:53:12,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:53:12,606 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:53:12,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:53:12,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:53:12,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:53:12,607 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:53:12,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:53:12,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:53:12,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:53:12,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:53:12,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:53:12,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:53:12,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:53:12,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:53:12,609 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/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/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 -> 2099bda96984d0e4445a07fd627008694b409440 [2019-11-15 20:53:12,634 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:53:12,644 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:53:12,647 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:53:12,649 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:53:12,649 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:53:12,650 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2019-11-15 20:53:12,699 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/bin/uautomizer/data/1104bb46e/3e86fca1f31647b59716f78713f860f4/FLAG38f701937 [2019-11-15 20:53:13,100 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:53:13,100 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2019-11-15 20:53:13,107 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/bin/uautomizer/data/1104bb46e/3e86fca1f31647b59716f78713f860f4/FLAG38f701937 [2019-11-15 20:53:13,121 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/bin/uautomizer/data/1104bb46e/3e86fca1f31647b59716f78713f860f4 [2019-11-15 20:53:13,123 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:53:13,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:53:13,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:53:13,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:53:13,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:53:13,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:53:13" (1/1) ... [2019-11-15 20:53:13,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411f8c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:13, skipping insertion in model container [2019-11-15 20:53:13,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:53:13" (1/1) ... [2019-11-15 20:53:13,144 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:53:13,168 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:53:13,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:53:13,379 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:53:13,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:53:13,427 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:53:13,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:13 WrapperNode [2019-11-15 20:53:13,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:53:13,428 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:53:13,428 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:53:13,428 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:53:13,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:13" (1/1) ... [2019-11-15 20:53:13,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:13" (1/1) ... [2019-11-15 20:53:13,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:53:13,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:53:13,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:53:13,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:53:13,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:13" (1/1) ... [2019-11-15 20:53:13,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:13" (1/1) ... [2019-11-15 20:53:13,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:13" (1/1) ... [2019-11-15 20:53:13,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:13" (1/1) ... [2019-11-15 20:53:13,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:13" (1/1) ... [2019-11-15 20:53:13,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:13" (1/1) ... [2019-11-15 20:53:13,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:13" (1/1) ... [2019-11-15 20:53:13,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:53:13,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:53:13,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:53:13,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:53:13,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/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 [2019-11-15 20:53:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:53:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 20:53:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 20:53:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 20:53:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:53:13,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:53:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 20:53:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:53:14,047 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:53:14,047 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-15 20:53:14,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:53:14 BoogieIcfgContainer [2019-11-15 20:53:14,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:53:14,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:53:14,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:53:14,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:53:14,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:53:13" (1/3) ... [2019-11-15 20:53:14,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@480a6490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:53:14, skipping insertion in model container [2019-11-15 20:53:14,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:13" (2/3) ... [2019-11-15 20:53:14,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@480a6490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:53:14, skipping insertion in model container [2019-11-15 20:53:14,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:53:14" (3/3) ... [2019-11-15 20:53:14,055 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2019-11-15 20:53:14,063 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:53:14,071 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:53:14,080 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:53:14,100 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:53:14,101 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:53:14,101 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:53:14,101 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:53:14,101 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:53:14,102 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:53:14,102 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:53:14,102 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:53:14,116 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-11-15 20:53:14,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 20:53:14,122 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:53:14,123 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:53:14,125 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:53:14,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:53:14,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2019-11-15 20:53:14,138 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:53:14,138 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429019671] [2019-11-15 20:53:14,138 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:53:14,138 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:53:14,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:53:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:53:14,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:53:14,222 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429019671] [2019-11-15 20:53:14,223 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:53:14,224 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 20:53:14,224 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249291156] [2019-11-15 20:53:14,228 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:53:14,228 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:53:14,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:53:14,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:53:14,243 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-11-15 20:53:14,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:53:14,258 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2019-11-15 20:53:14,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:53:14,260 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-15 20:53:14,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:53:14,269 INFO L225 Difference]: With dead ends: 64 [2019-11-15 20:53:14,269 INFO L226 Difference]: Without dead ends: 30 [2019-11-15 20:53:14,272 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 [2019-11-15 20:53:14,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-15 20:53:14,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-15 20:53:14,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-15 20:53:14,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2019-11-15 20:53:14,302 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2019-11-15 20:53:14,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:53:14,302 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-11-15 20:53:14,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:53:14,303 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2019-11-15 20:53:14,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 20:53:14,303 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:53:14,303 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:53:14,304 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:53:14,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:53:14,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2019-11-15 20:53:14,304 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:53:14,305 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249077937] [2019-11-15 20:53:14,305 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:53:14,305 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:53:14,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:53:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:53:14,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:53:14,388 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:53:14,389 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 20:53:14,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:53:14 BoogieIcfgContainer [2019-11-15 20:53:14,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:53:14,416 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:53:14,416 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:53:14,416 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:53:14,417 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:53:14" (3/4) ... [2019-11-15 20:53:14,420 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 20:53:14,420 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:53:14,422 INFO L168 Benchmark]: Toolchain (without parser) took 1297.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -131.2 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:53:14,423 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:53:14,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -190.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:53:14,424 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.34 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. [2019-11-15 20:53:14,424 INFO L168 Benchmark]: Boogie Preprocessor took 61.91 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:53:14,425 INFO L168 Benchmark]: RCFGBuilder took 513.68 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:53:14,426 INFO L168 Benchmark]: TraceAbstraction took 366.10 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:53:14,426 INFO L168 Benchmark]: Witness Printer took 4.25 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. [2019-11-15 20:53:14,429 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 303.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -190.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.34 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 61.91 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 513.68 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 366.10 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.25 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: 96]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someBinaryArithmeticFLOAToperation at line 30, overapproximation of bitwiseAnd at line 27. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L91] float x = 0.0f / 0.0f; [L18] float z; [L19] __uint32_t r, hx; [L20] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (ix) = gf_u.word [L27] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L29] COND TRUE !((hx) < 0x7f800000L) [L30] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L92] float res = __ieee754_sqrtf(x); [L13] return x != x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L95] COND TRUE !isnan_float(res) [L96] __VERIFIER_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 43 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=33occurred 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, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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 [2019-11-15 20:53:16,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:53:16,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:53:16,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:53:16,551 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:53:16,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:53:16,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:53:16,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:53:16,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:53:16,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:53:16,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:53:16,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:53:16,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:53:16,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:53:16,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:53:16,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:53:16,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:53:16,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:53:16,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:53:16,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:53:16,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:53:16,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:53:16,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:53:16,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:53:16,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:53:16,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:53:16,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:53:16,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:53:16,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:53:16,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:53:16,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:53:16,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:53:16,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:53:16,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:53:16,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:53:16,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:53:16,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:53:16,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:53:16,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:53:16,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:53:16,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:53:16,599 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 20:53:16,613 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:53:16,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:53:16,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:53:16,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:53:16,615 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:53:16,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:53:16,615 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:53:16,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:53:16,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:53:16,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:53:16,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:53:16,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:53:16,616 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 20:53:16,616 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 20:53:16,617 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:53:16,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:53:16,617 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:53:16,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:53:16,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:53:16,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:53:16,618 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:53:16,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:53:16,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:53:16,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:53:16,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:53:16,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:53:16,619 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 20:53:16,619 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 20:53:16,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:53:16,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 20:53:16,620 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/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/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 -> 2099bda96984d0e4445a07fd627008694b409440 [2019-11-15 20:53:16,648 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:53:16,659 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:53:16,662 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:53:16,663 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:53:16,663 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:53:16,664 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2019-11-15 20:53:16,715 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/bin/uautomizer/data/2cb31cd65/f5a7752ebb334d06ab9a8c0bfcf49682/FLAGed27f92bd [2019-11-15 20:53:17,074 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:53:17,074 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2019-11-15 20:53:17,081 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/bin/uautomizer/data/2cb31cd65/f5a7752ebb334d06ab9a8c0bfcf49682/FLAGed27f92bd [2019-11-15 20:53:17,520 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/bin/uautomizer/data/2cb31cd65/f5a7752ebb334d06ab9a8c0bfcf49682 [2019-11-15 20:53:17,523 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:53:17,524 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:53:17,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:53:17,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:53:17,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:53:17,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:53:17" (1/1) ... [2019-11-15 20:53:17,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c3f0bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:17, skipping insertion in model container [2019-11-15 20:53:17,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:53:17" (1/1) ... [2019-11-15 20:53:17,538 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:53:17,556 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:53:17,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:53:17,718 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:53:17,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:53:17,831 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:53:17,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:17 WrapperNode [2019-11-15 20:53:17,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:53:17,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:53:17,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:53:17,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:53:17,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:17" (1/1) ... [2019-11-15 20:53:17,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:17" (1/1) ... [2019-11-15 20:53:17,876 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:53:17,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:53:17,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:53:17,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:53:17,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:17" (1/1) ... [2019-11-15 20:53:17,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:17" (1/1) ... [2019-11-15 20:53:17,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:17" (1/1) ... [2019-11-15 20:53:17,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:17" (1/1) ... [2019-11-15 20:53:17,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:17" (1/1) ... [2019-11-15 20:53:17,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:17" (1/1) ... [2019-11-15 20:53:17,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:17" (1/1) ... [2019-11-15 20:53:17,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:53:17,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:53:17,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:53:17,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:53:17,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/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 [2019-11-15 20:53:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:53:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-15 20:53:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 20:53:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:53:17,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:53:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-15 20:53:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 20:53:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:53:18,797 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:53:18,797 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-15 20:53:18,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:53:18 BoogieIcfgContainer [2019-11-15 20:53:18,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:53:18,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:53:18,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:53:18,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:53:18,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:53:17" (1/3) ... [2019-11-15 20:53:18,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@676f8b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:53:18, skipping insertion in model container [2019-11-15 20:53:18,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:53:17" (2/3) ... [2019-11-15 20:53:18,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@676f8b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:53:18, skipping insertion in model container [2019-11-15 20:53:18,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:53:18" (3/3) ... [2019-11-15 20:53:18,805 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2019-11-15 20:53:18,812 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:53:18,819 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:53:18,827 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:53:18,845 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:53:18,845 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:53:18,845 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:53:18,845 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:53:18,845 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:53:18,845 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:53:18,846 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:53:18,846 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:53:18,859 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-11-15 20:53:18,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 20:53:18,864 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:53:18,865 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:53:18,867 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:53:18,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:53:18,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2019-11-15 20:53:18,881 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:53:18,881 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693537756] [2019-11-15 20:53:18,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/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 [2019-11-15 20:53:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:53:19,034 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 20:53:19,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:53:19,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:53:19,048 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:53:19,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:53:19,056 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693537756] [2019-11-15 20:53:19,057 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:53:19,058 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 20:53:19,058 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792514648] [2019-11-15 20:53:19,062 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:53:19,062 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:53:19,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:53:19,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:53:19,077 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-11-15 20:53:19,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:53:19,099 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2019-11-15 20:53:19,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:53:19,100 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-15 20:53:19,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:53:19,112 INFO L225 Difference]: With dead ends: 64 [2019-11-15 20:53:19,112 INFO L226 Difference]: Without dead ends: 30 [2019-11-15 20:53:19,119 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:53:19,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-15 20:53:19,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-15 20:53:19,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-15 20:53:19,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2019-11-15 20:53:19,159 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2019-11-15 20:53:19,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:53:19,160 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-11-15 20:53:19,160 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:53:19,160 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2019-11-15 20:53:19,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 20:53:19,161 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:53:19,161 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:53:19,379 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 20:53:19,379 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:53:19,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:53:19,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2019-11-15 20:53:19,380 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:53:19,380 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54226529] [2019-11-15 20:53:19,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/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 [2019-11-15 20:53:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:53:19,537 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 20:53:19,538 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:53:19,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:53:19,618 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:53:22,224 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-11-15 20:53:22,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:53:22,233 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54226529] [2019-11-15 20:53:22,233 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:53:22,233 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2019-11-15 20:53:22,234 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953140206] [2019-11-15 20:53:22,235 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 20:53:22,235 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:53:22,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 20:53:22,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-11-15 20:53:22,236 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 9 states. [2019-11-15 20:53:23,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:53:23,025 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-11-15 20:53:23,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:53:23,026 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 10 [2019-11-15 20:53:23,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:53:23,026 INFO L225 Difference]: With dead ends: 35 [2019-11-15 20:53:23,027 INFO L226 Difference]: Without dead ends: 30 [2019-11-15 20:53:23,027 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-11-15 20:53:23,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-15 20:53:23,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-15 20:53:23,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-15 20:53:23,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2019-11-15 20:53:23,032 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 10 [2019-11-15 20:53:23,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:53:23,033 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2019-11-15 20:53:23,033 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 20:53:23,033 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2019-11-15 20:53:23,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-15 20:53:23,034 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:53:23,034 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:53:23,241 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 20:53:23,241 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:53:23,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:53:23,242 INFO L82 PathProgramCache]: Analyzing trace with hash 591854048, now seen corresponding path program 1 times [2019-11-15 20:53:23,243 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:53:23,243 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038261587] [2019-11-15 20:53:23,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/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 [2019-11-15 20:53:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:53:23,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 20:53:23,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:53:23,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:53:23,377 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:53:23,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:53:23,469 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1038261587] [2019-11-15 20:53:23,470 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:53:23,470 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-15 20:53:23,470 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357514667] [2019-11-15 20:53:23,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 20:53:23,471 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:53:23,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 20:53:23,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-15 20:53:23,472 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 8 states. [2019-11-15 20:53:23,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:53:23,543 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2019-11-15 20:53:23,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 20:53:23,543 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2019-11-15 20:53:23,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:53:23,544 INFO L225 Difference]: With dead ends: 30 [2019-11-15 20:53:23,544 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 20:53:23,544 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-15 20:53:23,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 20:53:23,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 20:53:23,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 20:53:23,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 20:53:23,545 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-11-15 20:53:23,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:53:23,546 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:53:23,546 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 20:53:23,546 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 20:53:23,546 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 20:53:23,757 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 20:53:23,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 20:53:23,835 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 20:53:23,835 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 20:53:23,836 INFO L439 ceAbstractionStarter]: At program point L53-2(lines 53 62) the Hoare annotation is: false [2019-11-15 20:53:23,836 INFO L443 ceAbstractionStarter]: For program point L53-3(lines 17 82) no Hoare annotation was computed. [2019-11-15 20:53:23,836 INFO L443 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2019-11-15 20:53:23,836 INFO L443 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2019-11-15 20:53:23,836 INFO L443 ceAbstractionStarter]: For program point L95(lines 95 98) no Hoare annotation was computed. [2019-11-15 20:53:23,836 INFO L443 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2019-11-15 20:53:23,837 INFO L439 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= |ULTIMATE.start___ieee754_sqrtf_#res| (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) (= ULTIMATE.start___ieee754_sqrtf_~x .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|))) [2019-11-15 20:53:23,837 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 96) no Hoare annotation was computed. [2019-11-15 20:53:23,837 INFO L443 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2019-11-15 20:53:23,837 INFO L443 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2019-11-15 20:53:23,837 INFO L443 ceAbstractionStarter]: For program point L96(line 96) no Hoare annotation was computed. [2019-11-15 20:53:23,837 INFO L443 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2019-11-15 20:53:23,837 INFO L443 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2019-11-15 20:53:23,837 INFO L443 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2019-11-15 20:53:23,838 INFO L439 ceAbstractionStarter]: At program point L22-2(lines 22 26) the Hoare annotation is: (= ULTIMATE.start___ieee754_sqrtf_~x (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2019-11-15 20:53:23,838 INFO L443 ceAbstractionStarter]: For program point L22-3(lines 22 26) no Hoare annotation was computed. [2019-11-15 20:53:23,838 INFO L443 ceAbstractionStarter]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2019-11-15 20:53:23,839 INFO L439 ceAbstractionStarter]: At program point L39-3(lines 39 40) the Hoare annotation is: false [2019-11-15 20:53:23,839 INFO L443 ceAbstractionStarter]: For program point L39-4(lines 39 40) no Hoare annotation was computed. [2019-11-15 20:53:23,839 INFO L443 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2019-11-15 20:53:23,839 INFO L439 ceAbstractionStarter]: At program point L81(lines 17 82) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= |ULTIMATE.start___ieee754_sqrtf_#res| (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) (= ULTIMATE.start___ieee754_sqrtf_~x .cse0))) [2019-11-15 20:53:23,839 INFO L443 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2019-11-15 20:53:23,840 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 20:53:23,840 INFO L443 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2019-11-15 20:53:23,840 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 20:53:23,840 INFO L446 ceAbstractionStarter]: At program point L100(lines 84 101) the Hoare annotation is: true [2019-11-15 20:53:23,841 INFO L443 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-11-15 20:53:23,841 INFO L443 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2019-11-15 20:53:23,841 INFO L439 ceAbstractionStarter]: At program point L76-2(lines 76 80) the Hoare annotation is: false [2019-11-15 20:53:23,841 INFO L443 ceAbstractionStarter]: For program point L76-3(lines 76 80) no Hoare annotation was computed. [2019-11-15 20:53:23,841 INFO L443 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2019-11-15 20:53:23,853 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,854 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,855 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,855 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,855 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,862 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,863 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,863 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,863 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,864 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,864 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,865 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,866 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,866 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,866 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,866 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,867 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,869 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,869 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,869 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,869 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,870 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,871 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,872 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,872 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:23,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:53:23 BoogieIcfgContainer [2019-11-15 20:53:23,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:53:23,876 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:53:23,876 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:53:23,876 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:53:23,877 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:53:18" (3/4) ... [2019-11-15 20:53:23,897 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 20:53:23,908 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-15 20:53:23,909 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-15 20:53:23,947 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-15 20:53:23,948 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result [2019-11-15 20:53:23,988 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_061a440d-8da3-41b5-9021-fd559f2876eb/bin/uautomizer/witness.graphml [2019-11-15 20:53:23,989 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:53:23,990 INFO L168 Benchmark]: Toolchain (without parser) took 6466.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 953.7 MB in the beginning and 1.0 GB in the end (delta: -60.5 MB). Peak memory consumption was 93.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:53:23,990 INFO L168 Benchmark]: CDTParser took 0.25 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. [2019-11-15 20:53:23,991 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -189.2 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:53:23,991 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.76 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. [2019-11-15 20:53:23,992 INFO L168 Benchmark]: Boogie Preprocessor took 35.06 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. [2019-11-15 20:53:23,992 INFO L168 Benchmark]: RCFGBuilder took 886.55 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: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:53:23,992 INFO L168 Benchmark]: TraceAbstraction took 5076.21 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: 95.6 MB). Peak memory consumption was 95.6 MB. Max. memory is 11.5 GB. [2019-11-15 20:53:23,993 INFO L168 Benchmark]: Witness Printer took 113.14 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:53:23,995 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 307.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -189.2 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.76 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 35.06 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 886.55 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: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5076.21 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: 95.6 MB). Peak memory consumption was 95.6 MB. Max. memory is 11.5 GB. * Witness Printer took 113.14 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: 6.5 MB). Peak memory consumption was 6.5 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 - 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 - 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: 96]: 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: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant [2019-11-15 20:53:24,003 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,004 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,004 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,004 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,004 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,005 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,005 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,005 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,006 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,006 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,006 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,006 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 13]: Loop Invariant [2019-11-15 20:53:24,007 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,007 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,007 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,008 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,008 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,008 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,008 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,009 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,009 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,009 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,009 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,010 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant [2019-11-15 20:53:24,011 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 20:53:24,011 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Result: SAFE, OverallTime: 4.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 80 SDtfs, 45 SDslu, 172 SDs, 0 SdLazy, 43 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 7 LocationsWithAnnotation, 7 PreInvPairs, 11 NumberOfFragments, 63 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 76 ConstructedInterpolants, 2 QuantifiedInterpolants, 4169 SizeOfPredicates, 14 NumberOfNonLiveVariables, 107 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...