./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bc7b929d20445456da87d92c4566355380c50982 ................................................................................................................................................................................................................................................................................................................ 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_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bc7b929d20445456da87d92c4566355380c50982 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:25:46,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:25:46,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:25:46,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:25:46,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:25:46,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:25:46,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:25:46,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:25:46,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:25:46,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:25:46,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:25:46,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:25:46,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:25:46,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:25:46,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:25:46,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:25:46,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:25:46,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:25:46,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:25:46,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:25:46,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:25:46,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:25:46,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:25:46,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:25:46,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:25:46,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:25:46,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:25:46,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:25:46,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:25:46,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:25:46,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:25:46,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:25:46,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:25:46,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:25:46,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:25:46,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:25:46,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:25:46,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:25:46,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:25:46,402 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:25:46,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:25:46,404 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:25:46,428 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:25:46,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:25:46,429 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:25:46,429 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:25:46,430 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:25:46,430 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:25:46,430 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:25:46,430 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:25:46,430 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:25:46,430 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:25:46,431 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:25:46,431 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:25:46,431 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:25:46,431 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:25:46,431 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:25:46,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:25:46,432 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:25:46,432 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:25:46,432 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:25:46,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:25:46,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:25:46,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:25:46,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:25:46,433 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:25:46,434 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:25:46,434 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:25:46,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:25:46,434 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:25:46,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:25:46,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:25:46,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:25:46,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:25:46,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:25:46,435 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:25:46,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:25:46,436 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:25:46,436 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:25:46,436 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan 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 -> Taipan 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 -> bc7b929d20445456da87d92c4566355380c50982 [2019-11-26 02:25:46,607 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:25:46,621 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:25:46,625 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:25:46,626 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:25:46,626 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:25:46,627 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2019-11-26 02:25:46,682 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/data/b37c74975/c3c5abffeda6430bacf80fc978381d5b/FLAG47f24bff1 [2019-11-26 02:25:47,064 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:25:47,065 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2019-11-26 02:25:47,072 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/data/b37c74975/c3c5abffeda6430bacf80fc978381d5b/FLAG47f24bff1 [2019-11-26 02:25:47,414 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/data/b37c74975/c3c5abffeda6430bacf80fc978381d5b [2019-11-26 02:25:47,418 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:25:47,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:25:47,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:25:47,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:25:47,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:25:47,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:25:47" (1/1) ... [2019-11-26 02:25:47,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b1c255c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:47, skipping insertion in model container [2019-11-26 02:25:47,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:25:47" (1/1) ... [2019-11-26 02:25:47,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:25:47,461 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:25:47,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:25:47,704 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:25:47,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:25:47,763 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:25:47,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:47 WrapperNode [2019-11-26 02:25:47,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:25:47,764 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:25:47,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:25:47,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:25:47,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:47" (1/1) ... [2019-11-26 02:25:47,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:47" (1/1) ... [2019-11-26 02:25:47,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:25:47,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:25:47,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:25:47,816 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:25:47,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:47" (1/1) ... [2019-11-26 02:25:47,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:47" (1/1) ... [2019-11-26 02:25:47,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:47" (1/1) ... [2019-11-26 02:25:47,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:47" (1/1) ... [2019-11-26 02:25:47,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:47" (1/1) ... [2019-11-26 02:25:47,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:47" (1/1) ... [2019-11-26 02:25:47,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:47" (1/1) ... [2019-11-26 02:25:47,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:25:47,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:25:47,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:25:47,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:25:47,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/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 [2019-11-26 02:25:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:25:47,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-26 02:25:47,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:25:47,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-26 02:25:47,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:25:47,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:25:47,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:25:47,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-26 02:25:47,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:25:48,517 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:25:48,518 INFO L284 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-26 02:25:48,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:25:48 BoogieIcfgContainer [2019-11-26 02:25:48,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:25:48,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:25:48,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:25:48,522 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:25:48,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:25:47" (1/3) ... [2019-11-26 02:25:48,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57554371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:25:48, skipping insertion in model container [2019-11-26 02:25:48,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:47" (2/3) ... [2019-11-26 02:25:48,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57554371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:25:48, skipping insertion in model container [2019-11-26 02:25:48,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:25:48" (3/3) ... [2019-11-26 02:25:48,525 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620a.c [2019-11-26 02:25:48,534 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:25:48,540 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:25:48,548 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:25:48,568 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:25:48,568 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:25:48,568 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:25:48,568 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:25:48,568 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:25:48,568 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:25:48,568 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:25:48,569 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:25:48,581 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-11-26 02:25:48,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:25:48,587 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:25:48,587 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:25:48,588 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:25:48,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:25:48,593 INFO L82 PathProgramCache]: Analyzing trace with hash -42699680, now seen corresponding path program 1 times [2019-11-26 02:25:48,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:25:48,602 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824042357] [2019-11-26 02:25:48,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:25:48,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:25:48,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:25:48,723 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824042357] [2019-11-26 02:25:48,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:25:48,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:25:48,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146765218] [2019-11-26 02:25:48,728 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:25:48,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:25:48,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:25:48,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:25:48,742 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-11-26 02:25:48,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:25:48,755 INFO L93 Difference]: Finished difference Result 49 states and 75 transitions. [2019-11-26 02:25:48,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:25:48,757 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-26 02:25:48,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:25:48,765 INFO L225 Difference]: With dead ends: 49 [2019-11-26 02:25:48,765 INFO L226 Difference]: Without dead ends: 23 [2019-11-26 02:25:48,768 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 [2019-11-26 02:25:48,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-26 02:25:48,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-26 02:25:48,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-26 02:25:48,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2019-11-26 02:25:48,798 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 8 [2019-11-26 02:25:48,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:25:48,798 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2019-11-26 02:25:48,798 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:25:48,798 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2019-11-26 02:25:48,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-26 02:25:48,799 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:25:48,799 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:25:48,799 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:25:48,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:25:48,800 INFO L82 PathProgramCache]: Analyzing trace with hash -282315225, now seen corresponding path program 1 times [2019-11-26 02:25:48,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:25:48,800 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677171568] [2019-11-26 02:25:48,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:25:48,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:25:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:25:48,969 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:25:48,970 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:25:49,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:25:49 BoogieIcfgContainer [2019-11-26 02:25:49,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:25:49,007 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:25:49,007 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:25:49,007 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:25:49,008 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:25:48" (3/4) ... [2019-11-26 02:25:49,010 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-26 02:25:49,011 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:25:49,012 INFO L168 Benchmark]: Toolchain (without parser) took 1592.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -135.0 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:25:49,012 INFO L168 Benchmark]: CDTParser took 0.16 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. [2019-11-26 02:25:49,013 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -207.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:25:49,013 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:25:49,014 INFO L168 Benchmark]: Boogie Preprocessor took 61.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:25:49,014 INFO L168 Benchmark]: RCFGBuilder took 640.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 45.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:25:49,015 INFO L168 Benchmark]: TraceAbstraction took 487.29 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:25:49,015 INFO L168 Benchmark]: Witness Printer took 3.56 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. [2019-11-26 02:25:49,020 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 341.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -207.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 640.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 45.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 487.29 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.56 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: 142]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 141, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 62, overapproximation of someBinaryArithmeticFLOAToperation at line 65. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L137] float x = 0.0f; [L54] float w, s1, s2, z; [L55] __int32_t ix, hx, id; VAL [aT_atan={3:0}, atanhi_atan={6:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L58] ieee_float_shape_type gf_u; [L59] gf_u.value = (x) [L60] EXPR gf_u.word [L60] (hx) = gf_u.word [L62] ix = hx & 0x7fffffff VAL [aT_atan={3:0}, atanhi_atan={6:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L63] COND TRUE ix >= 0x50800000 [L64] COND TRUE ((ix) > 0x7f800000L) [L65] return x + x; VAL [aT_atan={3:0}, atanhi_atan={6:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L138] float res = atan_float(x); [L141] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [aT_atan={3:0}, atanhi_atan={6:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L141] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L142] __VERIFIER_error() VAL [aT_atan={3:0}, atanhi_atan={6:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 29 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=25occurred 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 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 0.1.24-6b5699a [2019-11-26 02:25:50,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:25:50,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:25:50,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:25:50,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:25:50,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:25:50,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:25:50,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:25:50,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:25:50,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:25:50,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:25:50,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:25:50,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:25:50,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:25:50,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:25:50,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:25:50,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:25:50,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:25:50,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:25:50,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:25:50,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:25:50,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:25:50,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:25:50,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:25:50,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:25:50,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:25:50,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:25:50,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:25:50,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:25:50,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:25:50,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:25:50,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:25:50,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:25:50,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:25:50,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:25:50,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:25:50,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:25:50,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:25:50,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:25:50,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:25:50,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:25:50,839 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-11-26 02:25:50,864 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:25:50,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:25:50,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:25:50,874 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:25:50,874 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:25:50,874 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:25:50,874 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:25:50,874 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:25:50,875 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:25:50,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:25:50,876 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:25:50,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:25:50,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:25:50,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:25:50,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:25:50,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:25:50,877 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 02:25:50,877 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 02:25:50,878 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 02:25:50,879 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:25:50,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:25:50,879 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:25:50,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:25:50,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:25:50,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 02:25:50,880 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:25:50,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:25:50,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:25:50,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:25:50,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:25:50,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:25:50,882 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 02:25:50,883 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 02:25:50,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:25:50,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:25:50,883 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_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan 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 -> Taipan 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 -> bc7b929d20445456da87d92c4566355380c50982 [2019-11-26 02:25:51,175 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:25:51,192 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:25:51,195 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:25:51,196 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:25:51,196 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:25:51,196 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2019-11-26 02:25:51,244 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/data/7a4bb6ae2/fae9f5de3ea84c859374fce70cc4f819/FLAGf9f67dd9c [2019-11-26 02:25:51,630 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:25:51,631 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2019-11-26 02:25:51,638 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/data/7a4bb6ae2/fae9f5de3ea84c859374fce70cc4f819/FLAGf9f67dd9c [2019-11-26 02:25:51,977 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/data/7a4bb6ae2/fae9f5de3ea84c859374fce70cc4f819 [2019-11-26 02:25:51,979 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:25:51,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:25:51,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:25:51,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:25:51,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:25:51,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:25:51" (1/1) ... [2019-11-26 02:25:51,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@760d8a07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:51, skipping insertion in model container [2019-11-26 02:25:51,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:25:51" (1/1) ... [2019-11-26 02:25:51,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:25:52,022 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:25:52,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:25:52,308 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:25:52,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:25:52,450 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:25:52,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:52 WrapperNode [2019-11-26 02:25:52,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:25:52,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:25:52,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:25:52,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:25:52,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:52" (1/1) ... [2019-11-26 02:25:52,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:52" (1/1) ... [2019-11-26 02:25:52,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:25:52,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:25:52,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:25:52,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:25:52,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:52" (1/1) ... [2019-11-26 02:25:52,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:52" (1/1) ... [2019-11-26 02:25:52,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:52" (1/1) ... [2019-11-26 02:25:52,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:52" (1/1) ... [2019-11-26 02:25:52,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:52" (1/1) ... [2019-11-26 02:25:52,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:52" (1/1) ... [2019-11-26 02:25:52,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:52" (1/1) ... [2019-11-26 02:25:52,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:25:52,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:25:52,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:25:52,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:25:52,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/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 [2019-11-26 02:25:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-26 02:25:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:25:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-26 02:25:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-26 02:25:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:25:52,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:25:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-26 02:25:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-26 02:25:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:25:59,397 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:25:59,397 INFO L284 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-26 02:25:59,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:25:59 BoogieIcfgContainer [2019-11-26 02:25:59,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:25:59,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:25:59,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:25:59,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:25:59,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:25:51" (1/3) ... [2019-11-26 02:25:59,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f22e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:25:59, skipping insertion in model container [2019-11-26 02:25:59,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:52" (2/3) ... [2019-11-26 02:25:59,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f22e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:25:59, skipping insertion in model container [2019-11-26 02:25:59,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:25:59" (3/3) ... [2019-11-26 02:25:59,405 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620a.c [2019-11-26 02:25:59,414 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:25:59,420 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:25:59,431 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:25:59,453 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:25:59,454 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:25:59,454 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:25:59,454 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:25:59,454 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:25:59,454 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:25:59,454 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:25:59,454 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:25:59,466 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-26 02:25:59,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:25:59,471 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:25:59,471 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:25:59,472 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:25:59,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:25:59,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2019-11-26 02:25:59,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:25:59,484 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778643196] [2019-11-26 02:25:59,484 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/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 [2019-11-26 02:26:00,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:26:00,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-26 02:26:00,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:26:00,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:26:00,339 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:26:00,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:26:00,343 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1778643196] [2019-11-26 02:26:00,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:26:00,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-26 02:26:00,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844092661] [2019-11-26 02:26:00,348 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:26:00,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:26:00,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:26:00,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:26:00,362 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-26 02:26:00,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:26:00,377 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2019-11-26 02:26:00,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:26:00,379 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-26 02:26:00,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:26:00,387 INFO L225 Difference]: With dead ends: 72 [2019-11-26 02:26:00,387 INFO L226 Difference]: Without dead ends: 34 [2019-11-26 02:26:00,389 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 [2019-11-26 02:26:00,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-26 02:26:00,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-26 02:26:00,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-26 02:26:00,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2019-11-26 02:26:00,414 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 10 [2019-11-26 02:26:00,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:26:00,414 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2019-11-26 02:26:00,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:26:00,414 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2019-11-26 02:26:00,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-26 02:26:00,415 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:26:00,415 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:26:00,615 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-26 02:26:00,623 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:26:00,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:26:00,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1304878016, now seen corresponding path program 1 times [2019-11-26 02:26:00,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:26:00,624 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022345891] [2019-11-26 02:26:00,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/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 [2019-11-26 02:26:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:26:01,478 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-26 02:26:01,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:26:01,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:26:01,551 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:26:01,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:26:01,632 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022345891] [2019-11-26 02:26:01,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:26:01,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-26 02:26:01,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509872309] [2019-11-26 02:26:01,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:26:01,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:26:01,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:26:01,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:26:01,635 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2019-11-26 02:26:05,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:26:05,951 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2019-11-26 02:26:05,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:26:05,962 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-26 02:26:05,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:26:05,963 INFO L225 Difference]: With dead ends: 57 [2019-11-26 02:26:05,964 INFO L226 Difference]: Without dead ends: 32 [2019-11-26 02:26:05,965 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-26 02:26:05,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-26 02:26:05,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2019-11-26 02:26:05,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-26 02:26:05,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-11-26 02:26:05,969 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 11 [2019-11-26 02:26:05,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:26:05,970 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-11-26 02:26:05,970 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:26:05,970 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-11-26 02:26:05,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-26 02:26:05,971 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:26:05,971 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:26:06,185 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-26 02:26:06,186 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:26:06,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:26:06,186 INFO L82 PathProgramCache]: Analyzing trace with hash -413875709, now seen corresponding path program 1 times [2019-11-26 02:26:06,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:26:06,187 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834736190] [2019-11-26 02:26:06,187 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/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 [2019-11-26 02:26:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:26:07,152 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-26 02:26:07,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:26:07,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:26:07,194 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:26:07,196 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:26:07,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:26:07,234 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1834736190] [2019-11-26 02:26:07,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:26:07,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-26 02:26:07,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131177369] [2019-11-26 02:26:07,235 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:26:07,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:26:07,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:26:07,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:26:07,236 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2019-11-26 02:26:11,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:26:11,683 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-11-26 02:26:11,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:26:11,683 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-26 02:26:11,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:26:11,686 INFO L225 Difference]: With dead ends: 35 [2019-11-26 02:26:11,686 INFO L226 Difference]: Without dead ends: 32 [2019-11-26 02:26:11,687 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-26 02:26:11,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-26 02:26:11,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2019-11-26 02:26:11,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-26 02:26:11,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-11-26 02:26:11,694 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2019-11-26 02:26:11,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:26:11,695 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-11-26 02:26:11,695 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:26:11,695 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-11-26 02:26:11,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-26 02:26:11,695 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:26:11,696 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:26:11,896 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-26 02:26:11,896 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:26:11,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:26:11,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1848532469, now seen corresponding path program 1 times [2019-11-26 02:26:11,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:26:11,897 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [518284518] [2019-11-26 02:26:11,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-26 02:26:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:26:13,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-26 02:26:13,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:26:13,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:26:13,878 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:26:14,237 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-11-26 02:26:14,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:26:14,373 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [518284518] [2019-11-26 02:26:14,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:26:14,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-26 02:26:14,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209268777] [2019-11-26 02:26:14,374 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:26:14,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:26:14,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:26:14,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:26:14,374 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 6 states. [2019-11-26 02:26:14,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:26:14,576 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2019-11-26 02:26:14,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:26:14,581 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-26 02:26:14,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:26:14,582 INFO L225 Difference]: With dead ends: 32 [2019-11-26 02:26:14,582 INFO L226 Difference]: Without dead ends: 18 [2019-11-26 02:26:14,583 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:26:14,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-26 02:26:14,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-26 02:26:14,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-26 02:26:14,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-11-26 02:26:14,586 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2019-11-26 02:26:14,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:26:14,586 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-11-26 02:26:14,586 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:26:14,586 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-11-26 02:26:14,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-26 02:26:14,586 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:26:14,587 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:26:14,787 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-26 02:26:14,787 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:26:14,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:26:14,788 INFO L82 PathProgramCache]: Analyzing trace with hash 712330328, now seen corresponding path program 1 times [2019-11-26 02:26:14,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:26:14,788 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500824719] [2019-11-26 02:26:14,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-26 02:26:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:26:15,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-26 02:26:15,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:26:15,726 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:26:15,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:26:15,757 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:26:15,758 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:26:15,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:26:15,943 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500824719] [2019-11-26 02:26:15,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:26:15,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2019-11-26 02:26:15,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915951080] [2019-11-26 02:26:15,944 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-26 02:26:15,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:26:15,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-26 02:26:15,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-11-26 02:26:15,945 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 14 states. [2019-11-26 02:26:16,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:26:16,148 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-11-26 02:26:16,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 02:26:16,151 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2019-11-26 02:26:16,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:26:16,151 INFO L225 Difference]: With dead ends: 18 [2019-11-26 02:26:16,151 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:26:16,152 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2019-11-26 02:26:16,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:26:16,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:26:16,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:26:16,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:26:16,153 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-26 02:26:16,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:26:16,153 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:26:16,153 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-26 02:26:16,153 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:26:16,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:26:16,354 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-26 02:26:16,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:26:16,575 INFO L440 ceAbstractionStarter]: At program point L126(lines 117 127) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) |ULTIMATE.start_main_#t~short29| (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (= (_ +zero 8 24) |ULTIMATE.start_atan_float_#res|) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)) ~huge_atan~0) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1))) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-26 02:26:16,575 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:26:16,575 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-26 02:26:16,576 INFO L444 ceAbstractionStarter]: For program point L120-1(lines 120 124) no Hoare annotation was computed. [2019-11-26 02:26:16,576 INFO L440 ceAbstractionStarter]: At program point L120-2(lines 120 124) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) |ULTIMATE.start_main_#t~short29| (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= (_ +zero 8 24) |ULTIMATE.start_atan_float_#res|) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)) ~huge_atan~0) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-26 02:26:16,576 INFO L444 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2019-11-26 02:26:16,576 INFO L444 ceAbstractionStarter]: For program point L120-3(lines 120 124) no Hoare annotation was computed. [2019-11-26 02:26:16,576 INFO L444 ceAbstractionStarter]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2019-11-26 02:26:16,576 INFO L444 ceAbstractionStarter]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2019-11-26 02:26:16,576 INFO L444 ceAbstractionStarter]: For program point L79(lines 79 95) no Hoare annotation was computed. [2019-11-26 02:26:16,576 INFO L444 ceAbstractionStarter]: For program point L71(lines 71 96) no Hoare annotation was computed. [2019-11-26 02:26:16,577 INFO L444 ceAbstractionStarter]: For program point L63(lines 63 70) no Hoare annotation was computed. [2019-11-26 02:26:16,577 INFO L444 ceAbstractionStarter]: For program point L88(lines 88 94) no Hoare annotation was computed. [2019-11-26 02:26:16,577 INFO L444 ceAbstractionStarter]: For program point L88-2(lines 71 96) no Hoare annotation was computed. [2019-11-26 02:26:16,577 INFO L447 ceAbstractionStarter]: At program point L146(lines 129 147) the Hoare annotation is: true [2019-11-26 02:26:16,577 INFO L444 ceAbstractionStarter]: For program point L113(line 113) no Hoare annotation was computed. [2019-11-26 02:26:16,577 INFO L444 ceAbstractionStarter]: For program point L80(lines 80 86) no Hoare annotation was computed. [2019-11-26 02:26:16,577 INFO L444 ceAbstractionStarter]: For program point L113-2(line 113) no Hoare annotation was computed. [2019-11-26 02:26:16,578 INFO L440 ceAbstractionStarter]: At program point L113-3(lines 53 115) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_atan_float_#res|) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)) ~huge_atan~0) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-26 02:26:16,578 INFO L444 ceAbstractionStarter]: For program point L72(lines 72 75) no Hoare annotation was computed. [2019-11-26 02:26:16,578 INFO L444 ceAbstractionStarter]: For program point L72-2(lines 72 75) no Hoare annotation was computed. [2019-11-26 02:26:16,578 INFO L444 ceAbstractionStarter]: For program point L64(lines 64 65) no Hoare annotation was computed. [2019-11-26 02:26:16,578 INFO L444 ceAbstractionStarter]: For program point L73(lines 73 74) no Hoare annotation was computed. [2019-11-26 02:26:16,578 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-26 02:26:16,578 INFO L444 ceAbstractionStarter]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2019-11-26 02:26:16,578 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2019-11-26 02:26:16,579 INFO L440 ceAbstractionStarter]: At program point L57-2(lines 57 61) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)) ~huge_atan~0) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-26 02:26:16,579 INFO L444 ceAbstractionStarter]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2019-11-26 02:26:16,579 INFO L444 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2019-11-26 02:26:16,579 INFO L440 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: false [2019-11-26 02:26:16,579 INFO L444 ceAbstractionStarter]: For program point L66(lines 66 69) no Hoare annotation was computed. [2019-11-26 02:26:16,579 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:26:16,579 INFO L444 ceAbstractionStarter]: For program point L141(line 141) no Hoare annotation was computed. [2019-11-26 02:26:16,579 INFO L444 ceAbstractionStarter]: For program point L141-2(lines 141 144) no Hoare annotation was computed. [2019-11-26 02:26:16,580 INFO L440 ceAbstractionStarter]: At program point L26(lines 14 27) the Hoare annotation is: false [2019-11-26 02:26:16,580 INFO L444 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2019-11-26 02:26:16,580 INFO L444 ceAbstractionStarter]: For program point L109(lines 109 114) no Hoare annotation was computed. [2019-11-26 02:26:16,588 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:26:16,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,593 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:26:16,593 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,593 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,595 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:26:16,595 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,596 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,596 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,596 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,596 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,597 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:26:16,597 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,597 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,599 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:26:16,599 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,599 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,600 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,600 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,600 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,601 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:26:16,601 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,601 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,602 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,602 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,602 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,603 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:26:16,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,605 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:26:16,606 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,606 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,606 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,607 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,607 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:26:16 BoogieIcfgContainer [2019-11-26 02:26:16,609 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:26:16,610 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:26:16,610 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:26:16,610 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:26:16,610 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:25:59" (3/4) ... [2019-11-26 02:26:16,613 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:26:16,627 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-26 02:26:16,630 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-26 02:26:16,630 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:26:16,653 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_atan) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-26 02:26:16,654 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_atan) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-26 02:26:16,654 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && ~Pluszero~LONGDOUBLE() == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_atan) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-26 02:26:16,693 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d6d8c2c3-a621-4974-85cf-4c0e69bb8adc/bin/utaipan/witness.graphml [2019-11-26 02:26:16,693 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:26:16,695 INFO L168 Benchmark]: Toolchain (without parser) took 24714.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 960.4 MB in the beginning and 892.1 MB in the end (delta: 68.3 MB). Peak memory consumption was 227.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:26:16,695 INFO L168 Benchmark]: CDTParser took 0.13 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. [2019-11-26 02:26:16,695 INFO L168 Benchmark]: CACSL2BoogieTranslator took 469.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -189.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:26:16,696 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.22 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:26:16,696 INFO L168 Benchmark]: Boogie Preprocessor took 67.87 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. [2019-11-26 02:26:16,696 INFO L168 Benchmark]: RCFGBuilder took 6831.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:26:16,697 INFO L168 Benchmark]: TraceAbstraction took 17209.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 898.6 MB in the end (delta: 207.5 MB). Peak memory consumption was 207.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:26:16,697 INFO L168 Benchmark]: Witness Printer took 84.05 ms. Allocated memory is still 1.2 GB. Free memory was 898.6 MB in the beginning and 892.1 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:26:16,699 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 469.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -189.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.22 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 67.87 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 6831.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17209.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 898.6 MB in the end (delta: 207.5 MB). Peak memory consumption was 207.5 MB. Max. memory is 11.5 GB. * Witness Printer took 84.05 ms. Allocated memory is still 1.2 GB. Free memory was 898.6 MB in the beginning and 892.1 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 142]: 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: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 120]: Loop Invariant [2019-11-26 02:26:16,709 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:26:16,709 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,710 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,710 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,710 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,710 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,711 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:26:16,711 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,711 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,712 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,712 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,712 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_atan) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 57]: Loop Invariant [2019-11-26 02:26:16,713 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:26:16,713 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,713 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,713 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,713 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,714 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,714 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:26:16,714 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,714 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,715 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,715 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,715 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan && x == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_atan) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant [2019-11-26 02:26:16,716 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:26:16,716 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,716 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,716 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,717 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,717 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,717 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:26:16,717 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,718 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,718 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,718 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,718 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_atan) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 117]: Loop Invariant [2019-11-26 02:26:16,719 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:26:16,719 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,719 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,719 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,720 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,720 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,720 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:26:16,721 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,721 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,721 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,721 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:26:16,721 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && ~Pluszero~LONGDOUBLE() == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_atan) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: SAFE, OverallTime: 17.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 111 SDtfs, 161 SDslu, 202 SDs, 0 SdLazy, 85 SolverSat, 12 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 8.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 122 HoareAnnotationTreeSize, 7 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 4.7s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 124 ConstructedInterpolants, 12 QuantifiedInterpolants, 8909 SizeOfPredicates, 28 NumberOfNonLiveVariables, 453 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...