./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1122b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1122b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/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 c6a2c9a76eae0e8993608269b8bc800503d7af17 .................................................................................................................................................................................................................................................................................................. 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_59486bfa-73a9-4590-bd8d-c641c4f3bba5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1122b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/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 c6a2c9a76eae0e8993608269b8bc800503d7af17 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 21:32:46,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 21:32:46,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 21:32:46,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 21:32:46,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 21:32:46,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 21:32:46,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 21:32:46,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 21:32:46,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 21:32:46,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 21:32:46,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 21:32:46,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 21:32:46,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 21:32:46,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 21:32:46,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 21:32:46,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 21:32:46,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 21:32:46,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 21:32:46,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 21:32:46,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 21:32:46,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 21:32:46,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 21:32:46,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 21:32:46,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 21:32:46,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 21:32:46,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 21:32:46,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 21:32:46,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 21:32:46,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 21:32:46,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 21:32:46,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 21:32:46,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 21:32:46,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 21:32:46,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 21:32:46,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 21:32:46,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 21:32:46,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 21:32:46,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 21:32:46,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 21:32:46,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 21:32:46,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 21:32:46,399 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 21:32:46,424 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 21:32:46,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 21:32:46,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 21:32:46,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 21:32:46,425 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 21:32:46,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 21:32:46,426 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 21:32:46,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 21:32:46,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 21:32:46,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 21:32:46,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 21:32:46,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 21:32:46,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 21:32:46,427 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 21:32:46,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 21:32:46,427 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 21:32:46,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 21:32:46,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 21:32:46,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 21:32:46,428 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 21:32:46,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 21:32:46,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:32:46,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 21:32:46,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 21:32:46,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 21:32:46,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 21:32:46,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 21:32:46,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 21:32:46,430 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_59486bfa-73a9-4590-bd8d-c641c4f3bba5/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 -> c6a2c9a76eae0e8993608269b8bc800503d7af17 [2019-11-19 21:32:46,608 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 21:32:46,624 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 21:32:46,627 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 21:32:46,636 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 21:32:46,637 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 21:32:46,639 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1122b.c [2019-11-19 21:32:46,702 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/bin/uautomizer/data/bd78b3d5e/951f7c02a2f248539d03b373671d3359/FLAG89a5dd264 [2019-11-19 21:32:47,103 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 21:32:47,104 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/sv-benchmarks/c/float-newlib/double_req_bl_1122b.c [2019-11-19 21:32:47,110 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/bin/uautomizer/data/bd78b3d5e/951f7c02a2f248539d03b373671d3359/FLAG89a5dd264 [2019-11-19 21:32:47,521 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/bin/uautomizer/data/bd78b3d5e/951f7c02a2f248539d03b373671d3359 [2019-11-19 21:32:47,523 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 21:32:47,524 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 21:32:47,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 21:32:47,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 21:32:47,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 21:32:47,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:32:47" (1/1) ... [2019-11-19 21:32:47,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34aed827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:47, skipping insertion in model container [2019-11-19 21:32:47,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:32:47" (1/1) ... [2019-11-19 21:32:47,539 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 21:32:47,565 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 21:32:47,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:32:47,834 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 21:32:47,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:32:47,906 INFO L192 MainTranslator]: Completed translation [2019-11-19 21:32:47,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:47 WrapperNode [2019-11-19 21:32:47,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 21:32:47,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 21:32:47,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 21:32:47,908 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 21:32:47,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:47" (1/1) ... [2019-11-19 21:32:47,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:47" (1/1) ... [2019-11-19 21:32:47,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 21:32:47,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 21:32:47,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 21:32:47,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 21:32:47,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:47" (1/1) ... [2019-11-19 21:32:47,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:47" (1/1) ... [2019-11-19 21:32:47,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:47" (1/1) ... [2019-11-19 21:32:47,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:47" (1/1) ... [2019-11-19 21:32:47,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:47" (1/1) ... [2019-11-19 21:32:48,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:47" (1/1) ... [2019-11-19 21:32:48,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:47" (1/1) ... [2019-11-19 21:32:48,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 21:32:48,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 21:32:48,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 21:32:48,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 21:32:48,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/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 [2019-11-19 21:32:48,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 21:32:48,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 21:32:48,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-19 21:32:48,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-19 21:32:48,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 21:32:48,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 21:32:48,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 21:32:48,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-19 21:32:48,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 21:32:48,627 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 21:32:48,628 INFO L285 CfgBuilder]: Removed 22 assume(true) statements. [2019-11-19 21:32:48,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:32:48 BoogieIcfgContainer [2019-11-19 21:32:48,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 21:32:48,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 21:32:48,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 21:32:48,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 21:32:48,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:32:47" (1/3) ... [2019-11-19 21:32:48,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58955f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:32:48, skipping insertion in model container [2019-11-19 21:32:48,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:47" (2/3) ... [2019-11-19 21:32:48,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58955f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:32:48, skipping insertion in model container [2019-11-19 21:32:48,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:32:48" (3/3) ... [2019-11-19 21:32:48,636 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122b.c [2019-11-19 21:32:48,644 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 21:32:48,651 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 21:32:48,661 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 21:32:48,682 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 21:32:48,682 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 21:32:48,682 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 21:32:48,683 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 21:32:48,683 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 21:32:48,683 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 21:32:48,683 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 21:32:48,683 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 21:32:48,699 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-11-19 21:32:48,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 21:32:48,705 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:32:48,706 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:32:48,707 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:32:48,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:32:48,711 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2019-11-19 21:32:48,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:32:48,717 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418779517] [2019-11-19 21:32:48,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:32:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:32:48,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:32:48,833 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418779517] [2019-11-19 21:32:48,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:32:48,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 21:32:48,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384175870] [2019-11-19 21:32:48,838 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 21:32:48,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:32:48,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 21:32:48,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 21:32:48,851 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2019-11-19 21:32:48,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:32:48,871 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2019-11-19 21:32:48,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 21:32:48,873 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-19 21:32:48,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:32:48,881 INFO L225 Difference]: With dead ends: 108 [2019-11-19 21:32:48,881 INFO L226 Difference]: Without dead ends: 52 [2019-11-19 21:32:48,883 INFO L630 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 [2019-11-19 21:32:48,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-19 21:32:48,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-11-19 21:32:48,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-19 21:32:48,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2019-11-19 21:32:48,916 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2019-11-19 21:32:48,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:32:48,917 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2019-11-19 21:32:48,917 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 21:32:48,917 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2019-11-19 21:32:48,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-19 21:32:48,918 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:32:48,918 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:32:48,918 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:32:48,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:32:48,919 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2019-11-19 21:32:48,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:32:48,919 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543705076] [2019-11-19 21:32:48,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:32:48,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:32:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:32:49,113 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 21:32:49,113 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 21:32:49,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:32:49 BoogieIcfgContainer [2019-11-19 21:32:49,141 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 21:32:49,142 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 21:32:49,142 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 21:32:49,142 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 21:32:49,142 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:32:48" (3/4) ... [2019-11-19 21:32:49,146 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 21:32:49,146 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 21:32:49,148 INFO L168 Benchmark]: Toolchain (without parser) took 1622.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -129.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. [2019-11-19 21:32:49,148 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:32:49,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -194.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-19 21:32:49,149 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.79 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. [2019-11-19 21:32:49,150 INFO L168 Benchmark]: Boogie Preprocessor took 48.10 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. [2019-11-19 21:32:49,150 INFO L168 Benchmark]: RCFGBuilder took 612.57 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: 39.6 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. [2019-11-19 21:32:49,151 INFO L168 Benchmark]: TraceAbstraction took 511.38 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: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-19 21:32:49,152 INFO L168 Benchmark]: Witness Printer took 4.38 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. [2019-11-19 21:32:49,155 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 382.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -194.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.79 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 48.10 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 612.57 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: 39.6 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 511.38 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: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.38 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: 176]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of bitwiseAnd at line 39, overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={3:0}] [L170] double x = -1.0 / 0.0; [L171] double y = __VERIFIER_nondet_double(); [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={3:0}] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={3:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={3:0}] [L172] double res = fmod_double(x, y); [L16] return x != x; VAL [one_fmod=1, Zero_fmod={3:0}] [L175] COND TRUE !isnan_double(res) [L176] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 81 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=55occurred 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, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-19 21:32:51,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 21:32:51,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 21:32:51,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 21:32:51,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 21:32:51,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 21:32:51,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 21:32:51,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 21:32:51,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 21:32:51,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 21:32:51,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 21:32:51,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 21:32:51,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 21:32:51,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 21:32:51,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 21:32:51,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 21:32:51,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 21:32:51,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 21:32:51,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 21:32:51,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 21:32:51,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 21:32:51,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 21:32:51,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 21:32:51,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 21:32:51,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 21:32:51,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 21:32:51,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 21:32:51,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 21:32:51,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 21:32:51,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 21:32:51,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 21:32:51,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 21:32:51,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 21:32:51,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 21:32:51,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 21:32:51,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 21:32:51,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 21:32:51,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 21:32:51,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 21:32:51,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 21:32:51,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 21:32:51,161 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-19 21:32:51,182 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 21:32:51,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 21:32:51,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 21:32:51,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 21:32:51,184 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 21:32:51,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 21:32:51,184 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 21:32:51,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 21:32:51,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 21:32:51,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 21:32:51,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 21:32:51,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 21:32:51,186 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 21:32:51,186 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 21:32:51,186 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 21:32:51,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 21:32:51,187 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 21:32:51,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 21:32:51,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 21:32:51,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 21:32:51,188 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 21:32:51,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 21:32:51,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:32:51,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 21:32:51,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 21:32:51,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 21:32:51,190 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 21:32:51,190 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 21:32:51,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 21:32:51,190 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 21:32:51,190 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_59486bfa-73a9-4590-bd8d-c641c4f3bba5/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 -> c6a2c9a76eae0e8993608269b8bc800503d7af17 [2019-11-19 21:32:51,461 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 21:32:51,474 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 21:32:51,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 21:32:51,480 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 21:32:51,481 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 21:32:51,482 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1122b.c [2019-11-19 21:32:51,543 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/bin/uautomizer/data/1d9cf972a/5b85f0d2fb0e452aa6ef31ef1a4a55b6/FLAG884e52614 [2019-11-19 21:32:51,964 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 21:32:51,964 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/sv-benchmarks/c/float-newlib/double_req_bl_1122b.c [2019-11-19 21:32:51,973 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/bin/uautomizer/data/1d9cf972a/5b85f0d2fb0e452aa6ef31ef1a4a55b6/FLAG884e52614 [2019-11-19 21:32:52,387 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/bin/uautomizer/data/1d9cf972a/5b85f0d2fb0e452aa6ef31ef1a4a55b6 [2019-11-19 21:32:52,392 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 21:32:52,393 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 21:32:52,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 21:32:52,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 21:32:52,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 21:32:52,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:32:52" (1/1) ... [2019-11-19 21:32:52,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@203063e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:52, skipping insertion in model container [2019-11-19 21:32:52,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:32:52" (1/1) ... [2019-11-19 21:32:52,412 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 21:32:52,450 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 21:32:52,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:32:52,690 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 21:32:52,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:32:52,841 INFO L192 MainTranslator]: Completed translation [2019-11-19 21:32:52,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:52 WrapperNode [2019-11-19 21:32:52,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 21:32:52,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 21:32:52,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 21:32:52,843 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 21:32:52,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:52" (1/1) ... [2019-11-19 21:32:52,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:52" (1/1) ... [2019-11-19 21:32:52,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 21:32:52,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 21:32:52,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 21:32:52,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 21:32:52,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:52" (1/1) ... [2019-11-19 21:32:52,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:52" (1/1) ... [2019-11-19 21:32:52,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:52" (1/1) ... [2019-11-19 21:32:52,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:52" (1/1) ... [2019-11-19 21:32:52,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:52" (1/1) ... [2019-11-19 21:32:52,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:52" (1/1) ... [2019-11-19 21:32:52,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:52" (1/1) ... [2019-11-19 21:32:52,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 21:32:52,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 21:32:52,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 21:32:52,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 21:32:52,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/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 [2019-11-19 21:32:52,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-19 21:32:52,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-19 21:32:52,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 21:32:52,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-19 21:32:53,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-19 21:32:53,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 21:32:53,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 21:32:53,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-19 21:32:53,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 21:32:56,452 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 21:32:56,452 INFO L285 CfgBuilder]: Removed 22 assume(true) statements. [2019-11-19 21:32:56,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:32:56 BoogieIcfgContainer [2019-11-19 21:32:56,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 21:32:56,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 21:32:56,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 21:32:56,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 21:32:56,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:32:52" (1/3) ... [2019-11-19 21:32:56,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f16b867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:32:56, skipping insertion in model container [2019-11-19 21:32:56,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:32:52" (2/3) ... [2019-11-19 21:32:56,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f16b867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:32:56, skipping insertion in model container [2019-11-19 21:32:56,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:32:56" (3/3) ... [2019-11-19 21:32:56,460 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122b.c [2019-11-19 21:32:56,468 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 21:32:56,473 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 21:32:56,481 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 21:32:56,502 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 21:32:56,502 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 21:32:56,502 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 21:32:56,503 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 21:32:56,503 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 21:32:56,503 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 21:32:56,503 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 21:32:56,503 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 21:32:56,515 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-11-19 21:32:56,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 21:32:56,520 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:32:56,521 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:32:56,521 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:32:56,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:32:56,525 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2019-11-19 21:32:56,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 21:32:56,533 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [159141348] [2019-11-19 21:32:56,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/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 [2019-11-19 21:32:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:32:57,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-19 21:32:57,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 21:32:57,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:32:57,565 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 21:32:57,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:32:57,571 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [159141348] [2019-11-19 21:32:57,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:32:57,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-19 21:32:57,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691705967] [2019-11-19 21:32:57,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 21:32:57,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 21:32:57,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 21:32:57,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 21:32:57,595 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2019-11-19 21:32:57,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:32:57,621 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2019-11-19 21:32:57,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 21:32:57,623 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-19 21:32:57,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:32:57,635 INFO L225 Difference]: With dead ends: 108 [2019-11-19 21:32:57,635 INFO L226 Difference]: Without dead ends: 52 [2019-11-19 21:32:57,638 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 21:32:57,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-19 21:32:57,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-11-19 21:32:57,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-19 21:32:57,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2019-11-19 21:32:57,674 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2019-11-19 21:32:57,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:32:57,674 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2019-11-19 21:32:57,674 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 21:32:57,675 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2019-11-19 21:32:57,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-19 21:32:57,675 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:32:57,676 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:32:57,890 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-19 21:32:57,890 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:32:57,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:32:57,890 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2019-11-19 21:32:57,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 21:32:57,891 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [14649475] [2019-11-19 21:32:57,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/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 [2019-11-19 21:32:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:32:58,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-19 21:32:58,912 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 21:33:07,534 WARN L191 SmtUtils]: Spent 2.55 s on a formula simplification that was a NOOP. DAG size: 12 [2019-11-19 21:33:07,536 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:33:15,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:33:15,244 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 21:33:25,565 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven c_ULTIMATE.start_fmod_double_~x ULTIMATE.start_fmod_double_~y))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2019-11-19 21:33:26,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:33:26,548 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [14649475] [2019-11-19 21:33:26,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:33:26,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-19 21:33:26,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084475436] [2019-11-19 21:33:26,550 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-19 21:33:26,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 21:33:26,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-19 21:33:26,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=53, Unknown=2, NotChecked=14, Total=90 [2019-11-19 21:33:26,551 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand 10 states. [2019-11-19 21:33:29,806 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven c_ULTIMATE.start_fmod_double_~x ULTIMATE.start_fmod_double_~y))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)) c_ULTIMATE.start_fmod_double_~x)) is different from true [2019-11-19 21:33:32,164 WARN L838 $PredicateComparison]: unable to prove that (and (not (fp.eq |c_ULTIMATE.start_fmod_double_#res| |c_ULTIMATE.start_fmod_double_#res|)) (exists ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)) ULTIMATE.start_fmod_double_~y))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |c_ULTIMATE.start_fmod_double_#res|))) is different from false [2019-11-19 21:33:34,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:33:34,742 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2019-11-19 21:33:34,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 21:33:34,775 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-11-19 21:33:34,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:33:34,777 INFO L225 Difference]: With dead ends: 57 [2019-11-19 21:33:34,777 INFO L226 Difference]: Without dead ends: 52 [2019-11-19 21:33:34,778 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 31.5s TimeCoverageRelationStatistics Valid=31, Invalid=67, Unknown=4, NotChecked=54, Total=156 [2019-11-19 21:33:34,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-19 21:33:34,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-11-19 21:33:34,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-19 21:33:34,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2019-11-19 21:33:34,786 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2019-11-19 21:33:34,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:33:34,786 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2019-11-19 21:33:34,786 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-19 21:33:34,787 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2019-11-19 21:33:34,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-19 21:33:34,787 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:33:34,788 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:33:34,990 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-19 21:33:34,990 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:33:34,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:33:34,990 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2019-11-19 21:33:34,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 21:33:34,991 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1031259874] [2019-11-19 21:33:34,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/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 [2019-11-19 21:33:35,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:33:35,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-19 21:33:35,124 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 21:33:35,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:33:35,189 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 21:33:35,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:33:35,270 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1031259874] [2019-11-19 21:33:35,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:33:35,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-19 21:33:35,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445855900] [2019-11-19 21:33:35,271 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 21:33:35,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 21:33:35,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 21:33:35,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-11-19 21:33:35,272 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand 8 states. [2019-11-19 21:33:35,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:33:35,413 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2019-11-19 21:33:35,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 21:33:35,413 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-11-19 21:33:35,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:33:35,413 INFO L225 Difference]: With dead ends: 52 [2019-11-19 21:33:35,414 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 21:33:35,414 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-19 21:33:35,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 21:33:35,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 21:33:35,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 21:33:35,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 21:33:35,415 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-11-19 21:33:35,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:33:35,415 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 21:33:35,416 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 21:33:35,416 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 21:33:35,416 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 21:33:35,616 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-19 21:33:35,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 21:33:45,930 WARN L191 SmtUtils]: Spent 10.27 s on a formula simplification. DAG size of input: 15 DAG size of output: 12 [2019-11-19 21:33:50,184 WARN L191 SmtUtils]: Spent 4.25 s on a formula simplification. DAG size of input: 15 DAG size of output: 8 [2019-11-19 21:33:50,189 INFO L444 ceAbstractionStarter]: For program point L118(lines 118 119) no Hoare annotation was computed. [2019-11-19 21:33:50,189 INFO L444 ceAbstractionStarter]: For program point L118-2(lines 23 161) no Hoare annotation was computed. [2019-11-19 21:33:50,189 INFO L444 ceAbstractionStarter]: For program point L69-2(lines 69 70) no Hoare annotation was computed. [2019-11-19 21:33:50,190 INFO L440 ceAbstractionStarter]: At program point L69-3(lines 69 70) the Hoare annotation is: false [2019-11-19 21:33:50,190 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 21:33:50,190 INFO L444 ceAbstractionStarter]: For program point L152(lines 152 157) no Hoare annotation was computed. [2019-11-19 21:33:50,190 INFO L444 ceAbstractionStarter]: For program point L152-1(lines 140 159) no Hoare annotation was computed. [2019-11-19 21:33:50,190 INFO L444 ceAbstractionStarter]: For program point L152-2(lines 152 157) no Hoare annotation was computed. [2019-11-19 21:33:50,190 INFO L444 ceAbstractionStarter]: For program point L53(lines 23 161) no Hoare annotation was computed. [2019-11-19 21:33:50,190 INFO L444 ceAbstractionStarter]: For program point L120-1(lines 23 161) no Hoare annotation was computed. [2019-11-19 21:33:50,190 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 60) no Hoare annotation was computed. [2019-11-19 21:33:50,190 INFO L444 ceAbstractionStarter]: For program point L104(lines 104 105) no Hoare annotation was computed. [2019-11-19 21:33:50,190 INFO L444 ceAbstractionStarter]: For program point L104-2(lines 101 115) no Hoare annotation was computed. [2019-11-19 21:33:50,190 INFO L444 ceAbstractionStarter]: For program point L55-2(lines 55 56) no Hoare annotation was computed. [2019-11-19 21:33:50,191 INFO L440 ceAbstractionStarter]: At program point L55-3(lines 55 56) the Hoare annotation is: false [2019-11-19 21:33:50,191 INFO L440 ceAbstractionStarter]: At program point L106-1(lines 101 115) the Hoare annotation is: false [2019-11-19 21:33:50,191 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 21:33:50,191 INFO L444 ceAbstractionStarter]: For program point L91(lines 91 97) no Hoare annotation was computed. [2019-11-19 21:33:50,191 INFO L444 ceAbstractionStarter]: For program point L91-2(lines 87 98) no Hoare annotation was computed. [2019-11-19 21:33:50,191 INFO L444 ceAbstractionStarter]: For program point L58-2(lines 58 59) no Hoare annotation was computed. [2019-11-19 21:33:50,191 INFO L440 ceAbstractionStarter]: At program point L58-3(lines 58 59) the Hoare annotation is: false [2019-11-19 21:33:50,191 INFO L444 ceAbstractionStarter]: For program point L175(lines 175 178) no Hoare annotation was computed. [2019-11-19 21:33:50,191 INFO L444 ceAbstractionStarter]: For program point L142(lines 142 151) no Hoare annotation was computed. [2019-11-19 21:33:50,191 INFO L444 ceAbstractionStarter]: For program point L43(lines 43 45) no Hoare annotation was computed. [2019-11-19 21:33:50,191 INFO L444 ceAbstractionStarter]: For program point L27-1(lines 27 32) no Hoare annotation was computed. [2019-11-19 21:33:50,192 INFO L440 ceAbstractionStarter]: At program point L27-2(lines 27 32) the Hoare annotation is: (= (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)) ULTIMATE.start_fmod_double_~x) [2019-11-19 21:33:50,192 INFO L444 ceAbstractionStarter]: For program point L176(line 176) no Hoare annotation was computed. [2019-11-19 21:33:50,192 INFO L444 ceAbstractionStarter]: For program point L110(lines 110 111) no Hoare annotation was computed. [2019-11-19 21:33:50,192 INFO L440 ceAbstractionStarter]: At program point L160(lines 23 161) the Hoare annotation is: (exists ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)) ULTIMATE.start_fmod_double_~y))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_double_#res|)) [2019-11-19 21:33:50,192 INFO L440 ceAbstractionStarter]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2019-11-19 21:33:50,192 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 21:33:50,193 INFO L444 ceAbstractionStarter]: For program point L127-3(lines 23 161) no Hoare annotation was computed. [2019-11-19 21:33:50,193 INFO L444 ceAbstractionStarter]: For program point L145(lines 145 151) no Hoare annotation was computed. [2019-11-19 21:33:50,193 INFO L444 ceAbstractionStarter]: For program point L79(lines 79 85) no Hoare annotation was computed. [2019-11-19 21:33:50,193 INFO L444 ceAbstractionStarter]: For program point L46(lines 46 51) no Hoare annotation was computed. [2019-11-19 21:33:50,193 INFO L444 ceAbstractionStarter]: For program point L79-2(lines 23 161) no Hoare annotation was computed. [2019-11-19 21:33:50,193 INFO L444 ceAbstractionStarter]: For program point L46-2(lines 23 161) no Hoare annotation was computed. [2019-11-19 21:33:50,193 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2019-11-19 21:33:50,193 INFO L444 ceAbstractionStarter]: For program point L64(lines 23 161) no Hoare annotation was computed. [2019-11-19 21:33:50,194 INFO L447 ceAbstractionStarter]: At program point L180(lines 163 181) the Hoare annotation is: true [2019-11-19 21:33:50,194 INFO L444 ceAbstractionStarter]: For program point L65(lines 65 71) no Hoare annotation was computed. [2019-11-19 21:33:50,194 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-19 21:33:50,194 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 176) no Hoare annotation was computed. [2019-11-19 21:33:50,194 INFO L444 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2019-11-19 21:33:50,194 INFO L440 ceAbstractionStarter]: At program point L16(line 16) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) [2019-11-19 21:33:50,194 INFO L444 ceAbstractionStarter]: For program point L132(lines 132 159) no Hoare annotation was computed. [2019-11-19 21:33:50,194 INFO L444 ceAbstractionStarter]: For program point L33(lines 33 38) no Hoare annotation was computed. [2019-11-19 21:33:50,194 INFO L444 ceAbstractionStarter]: For program point L33-1(lines 23 161) no Hoare annotation was computed. [2019-11-19 21:33:50,195 INFO L444 ceAbstractionStarter]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2019-11-19 21:33:50,195 INFO L444 ceAbstractionStarter]: For program point L33-2(lines 33 38) no Hoare annotation was computed. [2019-11-19 21:33:50,195 INFO L440 ceAbstractionStarter]: At program point L66-3(lines 66 67) the Hoare annotation is: false [2019-11-19 21:33:50,195 INFO L444 ceAbstractionStarter]: For program point L134-1(lines 134 139) no Hoare annotation was computed. [2019-11-19 21:33:50,195 INFO L444 ceAbstractionStarter]: For program point L101-1(lines 101 115) no Hoare annotation was computed. [2019-11-19 21:33:50,195 INFO L440 ceAbstractionStarter]: At program point L134-2(lines 134 139) the Hoare annotation is: false [2019-11-19 21:33:50,195 INFO L444 ceAbstractionStarter]: For program point L101-3(lines 101 115) no Hoare annotation was computed. [2019-11-19 21:33:50,204 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,205 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,205 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,205 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,205 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~y,QUANTIFIED] [2019-11-19 21:33:50,206 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,207 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,208 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,208 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~y,QUANTIFIED] [2019-11-19 21:33:50,212 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,212 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,212 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,212 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,212 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~y,QUANTIFIED] [2019-11-19 21:33:50,213 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,213 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,213 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,213 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~y,QUANTIFIED] [2019-11-19 21:33:50,217 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,222 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:33:50 BoogieIcfgContainer [2019-11-19 21:33:50,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 21:33:50,228 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 21:33:50,229 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 21:33:50,229 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 21:33:50,229 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:32:56" (3/4) ... [2019-11-19 21:33:50,234 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 21:33:50,250 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-19 21:33:50,250 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-19 21:33:50,251 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-19 21:33:50,289 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_59486bfa-73a9-4590-bd8d-c641c4f3bba5/bin/uautomizer/witness.graphml [2019-11-19 21:33:50,289 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 21:33:50,291 INFO L168 Benchmark]: Toolchain (without parser) took 57897.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 957.8 MB in the beginning and 986.1 MB in the end (delta: -28.4 MB). Peak memory consumption was 122.6 MB. Max. memory is 11.5 GB. [2019-11-19 21:33:50,291 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:33:50,292 INFO L168 Benchmark]: CACSL2BoogieTranslator took 447.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 957.8 MB in the beginning and 1.1 GB in the end (delta: -183.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-19 21:33:50,292 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-19 21:33:50,293 INFO L168 Benchmark]: Boogie Preprocessor took 42.30 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. [2019-11-19 21:33:50,293 INFO L168 Benchmark]: RCFGBuilder took 3518.58 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: 43.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 11.5 GB. [2019-11-19 21:33:50,294 INFO L168 Benchmark]: TraceAbstraction took 53774.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 992.6 MB in the end (delta: 98.7 MB). Peak memory consumption was 98.7 MB. Max. memory is 11.5 GB. [2019-11-19 21:33:50,294 INFO L168 Benchmark]: Witness Printer took 60.94 ms. Allocated memory is still 1.2 GB. Free memory was 992.6 MB in the beginning and 986.1 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-19 21:33:50,297 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 447.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 957.8 MB in the beginning and 1.1 GB in the end (delta: -183.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.30 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 3518.58 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: 43.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 53774.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 992.6 MB in the end (delta: 98.7 MB). Peak memory consumption was 98.7 MB. Max. memory is 11.5 GB. * Witness Printer took 60.94 ms. Allocated memory is still 1.2 GB. Free memory was 992.6 MB in the beginning and 986.1 MB 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~y,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~y,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~y,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~y,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 176]: 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: 66]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 23]: Loop Invariant [2019-11-19 21:33:50,306 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,306 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,307 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,307 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,307 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~y,QUANTIFIED] [2019-11-19 21:33:50,307 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,307 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,308 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,308 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~y,QUANTIFIED] [2019-11-19 21:33:50,309 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,309 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,309 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,309 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,309 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~y,QUANTIFIED] [2019-11-19 21:33:50,310 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,310 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,310 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,310 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~y,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start_fmod_double_~y : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ULTIMATE.start_fmod_double_~y), ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ULTIMATE.start_fmod_double_~y)) == \result) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant [2019-11-19 21:33:50,312 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,312 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,312 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 21:33:50,313 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 53.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 14.5s, HoareTripleCheckerStatistics: 161 SDtfs, 9 SDslu, 412 SDs, 0 SdLazy, 34 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 31.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred 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, 11 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 45 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 14.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 27.9s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 13 QuantifiedInterpolants, 5196 SizeOfPredicates, 16 NumberOfNonLiveVariables, 182 ConjunctsInSsa, 20 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...