./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0971.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0971.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1aaf670562012dae9985b4d351583e88df305330 ...................................................................................................................................................................................................................................................................................................... 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_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0971.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1aaf670562012dae9985b4d351583e88df305330 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 11:20:12,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:20:12,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:20:12,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:20:12,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:20:12,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:20:12,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:20:12,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:20:12,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:20:12,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:20:12,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:20:12,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:20:12,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:20:12,823 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:20:12,824 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:20:12,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:20:12,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:20:12,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:20:12,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:20:12,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:20:12,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:20:12,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:20:12,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:20:12,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:20:12,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:20:12,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:20:12,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:20:12,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:20:12,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:20:12,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:20:12,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:20:12,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:20:12,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:20:12,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:20:12,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:20:12,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:20:12,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:20:12,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:20:12,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:20:12,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:20:12,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:20:12,853 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 11:20:12,876 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:20:12,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:20:12,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:20:12,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:20:12,878 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:20:12,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:20:12,878 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 11:20:12,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 11:20:12,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 11:20:12,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:20:12,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 11:20:12,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 11:20:12,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 11:20:12,880 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 11:20:12,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 11:20:12,880 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:20:12,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 11:20:12,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:20:12,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:20:12,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 11:20:12,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 11:20:12,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:20:12,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:20:12,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 11:20:12,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 11:20:12,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 11:20:12,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 11:20:12,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 11:20:12,882 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1aaf670562012dae9985b4d351583e88df305330 [2019-11-20 11:20:13,025 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:20:13,036 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:20:13,039 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:20:13,044 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:20:13,045 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:20:13,045 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0971.c [2019-11-20 11:20:13,100 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/data/8703a52c4/7f2de9e6bab44f1a99cf94ef8bdee216/FLAG340d75f9b [2019-11-20 11:20:13,545 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:20:13,546 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/sv-benchmarks/c/float-newlib/double_req_bl_0971.c [2019-11-20 11:20:13,565 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/data/8703a52c4/7f2de9e6bab44f1a99cf94ef8bdee216/FLAG340d75f9b [2019-11-20 11:20:14,063 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/data/8703a52c4/7f2de9e6bab44f1a99cf94ef8bdee216 [2019-11-20 11:20:14,066 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:20:14,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 11:20:14,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:20:14,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:20:14,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:20:14,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:20:14" (1/1) ... [2019-11-20 11:20:14,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5087b74e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:14, skipping insertion in model container [2019-11-20 11:20:14,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:20:14" (1/1) ... [2019-11-20 11:20:14,080 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:20:14,099 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:20:14,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:20:14,342 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:20:14,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:20:14,406 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:20:14,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:14 WrapperNode [2019-11-20 11:20:14,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:20:14,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 11:20:14,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 11:20:14,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 11:20:14,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:14" (1/1) ... [2019-11-20 11:20:14,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:14" (1/1) ... [2019-11-20 11:20:14,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 11:20:14,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:20:14,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:20:14,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:20:14,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:14" (1/1) ... [2019-11-20 11:20:14,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:14" (1/1) ... [2019-11-20 11:20:14,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:14" (1/1) ... [2019-11-20 11:20:14,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:14" (1/1) ... [2019-11-20 11:20:14,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:14" (1/1) ... [2019-11-20 11:20:14,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:14" (1/1) ... [2019-11-20 11:20:14,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:14" (1/1) ... [2019-11-20 11:20:14,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:20:14,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:20:14,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:20:14,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:20:14,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:20:14,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 11:20:14,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 11:20:14,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 11:20:14,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 11:20:14,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:20:14,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:20:14,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 11:20:14,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 11:20:15,075 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:20:15,075 INFO L285 CfgBuilder]: Removed 22 assume(true) statements. [2019-11-20 11:20:15,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:20:15 BoogieIcfgContainer [2019-11-20 11:20:15,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:20:15,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 11:20:15,080 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 11:20:15,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 11:20:15,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:20:14" (1/3) ... [2019-11-20 11:20:15,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b50dd38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:20:15, skipping insertion in model container [2019-11-20 11:20:15,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:14" (2/3) ... [2019-11-20 11:20:15,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b50dd38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:20:15, skipping insertion in model container [2019-11-20 11:20:15,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:20:15" (3/3) ... [2019-11-20 11:20:15,085 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0971.c [2019-11-20 11:20:15,091 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 11:20:15,095 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 11:20:15,102 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 11:20:15,122 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 11:20:15,122 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 11:20:15,123 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 11:20:15,123 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:20:15,123 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:20:15,123 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 11:20:15,123 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:20:15,123 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 11:20:15,134 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-20 11:20:15,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 11:20:15,138 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:20:15,139 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:20:15,139 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:20:15,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:20:15,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1032073611, now seen corresponding path program 1 times [2019-11-20 11:20:15,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:20:15,150 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851699262] [2019-11-20 11:20:15,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:20:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:20:15,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:20:15,264 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851699262] [2019-11-20 11:20:15,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:20:15,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 11:20:15,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476504161] [2019-11-20 11:20:15,269 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 11:20:15,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:20:15,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 11:20:15,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 11:20:15,283 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-20 11:20:15,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:20:15,300 INFO L93 Difference]: Finished difference Result 82 states and 136 transitions. [2019-11-20 11:20:15,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 11:20:15,301 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 11:20:15,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:20:15,308 INFO L225 Difference]: With dead ends: 82 [2019-11-20 11:20:15,308 INFO L226 Difference]: Without dead ends: 39 [2019-11-20 11:20:15,311 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 [2019-11-20 11:20:15,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-20 11:20:15,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-20 11:20:15,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-20 11:20:15,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-11-20 11:20:15,343 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 10 [2019-11-20 11:20:15,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:20:15,344 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-11-20 11:20:15,344 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 11:20:15,344 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2019-11-20 11:20:15,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 11:20:15,345 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:20:15,345 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:20:15,345 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:20:15,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:20:15,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1303233586, now seen corresponding path program 1 times [2019-11-20 11:20:15,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:20:15,346 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610232215] [2019-11-20 11:20:15,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:20:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:20:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:20:15,438 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:20:15,438 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 11:20:15,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:20:15 BoogieIcfgContainer [2019-11-20 11:20:15,473 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 11:20:15,473 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:20:15,473 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:20:15,473 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:20:15,474 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:20:15" (3/4) ... [2019-11-20 11:20:15,477 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 11:20:15,477 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:20:15,478 INFO L168 Benchmark]: Toolchain (without parser) took 1411.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -137.1 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2019-11-20 11:20:15,479 INFO L168 Benchmark]: CDTParser took 0.18 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. [2019-11-20 11:20:15,479 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -196.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-20 11:20:15,480 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.33 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. [2019-11-20 11:20:15,480 INFO L168 Benchmark]: Boogie Preprocessor took 36.45 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 11:20:15,481 INFO L168 Benchmark]: RCFGBuilder took 586.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. [2019-11-20 11:20:15,481 INFO L168 Benchmark]: TraceAbstraction took 395.67 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-20 11:20:15,481 INFO L168 Benchmark]: Witness Printer took 4.02 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. [2019-11-20 11:20:15,484 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 339.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -196.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.45 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 586.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 395.67 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.02 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: 175]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 161, overapproximation of bitwiseOr at line 132, overapproximation of someBinaryArithmeticDOUBLEoperation at line 133. Possible FailurePath: [L17-L26] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L28] static const double zero = 0.0; [L111-L114] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L116] static const double zero_log10 = 0.0; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L170] double x = 0.0 / 0.0; [L119] double y, z; [L120] __int32_t i, k, hx; [L121] __uint32_t lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L124] ieee_double_shape_type ew_u; [L125] ew_u.value = (x) [L126] EXPR ew_u.parts.msw [L126] (hx) = ew_u.parts.msw [L127] EXPR ew_u.parts.lsw [L127] (lx) = ew_u.parts.lsw [L130] k = 0 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L131] COND TRUE hx < 0x00100000 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L132] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L133] return -two54_log10 / zero_log10; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L171] double res = __ieee754_log10(x); [L161] return x != x; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L174] COND TRUE !isnan_double(res) [L175] __VERIFIER_error() VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 11:20:17,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:20:17,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:20:17,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:20:17,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:20:17,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:20:17,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:20:17,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:20:17,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:20:17,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:20:17,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:20:17,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:20:17,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:20:17,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:20:17,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:20:17,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:20:17,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:20:17,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:20:17,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:20:17,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:20:17,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:20:17,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:20:17,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:20:17,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:20:17,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:20:17,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:20:17,261 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:20:17,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:20:17,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:20:17,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:20:17,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:20:17,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:20:17,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:20:17,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:20:17,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:20:17,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:20:17,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:20:17,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:20:17,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:20:17,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:20:17,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:20:17,271 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 11:20:17,297 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:20:17,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:20:17,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:20:17,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:20:17,305 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:20:17,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:20:17,306 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 11:20:17,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 11:20:17,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:20:17,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 11:20:17,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 11:20:17,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 11:20:17,307 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 11:20:17,307 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 11:20:17,307 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 11:20:17,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 11:20:17,308 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:20:17,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 11:20:17,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:20:17,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:20:17,309 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 11:20:17,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 11:20:17,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:20:17,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:20:17,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 11:20:17,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 11:20:17,310 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 11:20:17,310 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 11:20:17,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 11:20:17,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 11:20:17,310 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_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1aaf670562012dae9985b4d351583e88df305330 [2019-11-20 11:20:17,564 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:20:17,578 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:20:17,582 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:20:17,583 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:20:17,584 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:20:17,585 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0971.c [2019-11-20 11:20:17,635 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/data/45d90c3a5/eeccc847006e4564a07d59494a47a626/FLAGd62e5781d [2019-11-20 11:20:18,077 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:20:18,081 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/sv-benchmarks/c/float-newlib/double_req_bl_0971.c [2019-11-20 11:20:18,090 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/data/45d90c3a5/eeccc847006e4564a07d59494a47a626/FLAGd62e5781d [2019-11-20 11:20:18,106 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/data/45d90c3a5/eeccc847006e4564a07d59494a47a626 [2019-11-20 11:20:18,109 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:20:18,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 11:20:18,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:20:18,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:20:18,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:20:18,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:20:18" (1/1) ... [2019-11-20 11:20:18,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38962048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:18, skipping insertion in model container [2019-11-20 11:20:18,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:20:18" (1/1) ... [2019-11-20 11:20:18,128 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:20:18,160 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:20:18,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:20:18,382 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:20:18,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:20:18,516 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:20:18,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:18 WrapperNode [2019-11-20 11:20:18,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:20:18,517 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 11:20:18,517 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 11:20:18,517 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 11:20:18,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:18" (1/1) ... [2019-11-20 11:20:18,553 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:18" (1/1) ... [2019-11-20 11:20:18,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 11:20:18,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:20:18,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:20:18,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:20:18,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:18" (1/1) ... [2019-11-20 11:20:18,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:18" (1/1) ... [2019-11-20 11:20:18,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:18" (1/1) ... [2019-11-20 11:20:18,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:18" (1/1) ... [2019-11-20 11:20:18,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:18" (1/1) ... [2019-11-20 11:20:18,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:18" (1/1) ... [2019-11-20 11:20:18,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:18" (1/1) ... [2019-11-20 11:20:18,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:20:18,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:20:18,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:20:18,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:20:18,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:20:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-20 11:20:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-20 11:20:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 11:20:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 11:20:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:20:18,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:20:18,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 11:20:18,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 11:20:49,062 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:20:49,063 INFO L285 CfgBuilder]: Removed 22 assume(true) statements. [2019-11-20 11:20:49,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:20:49 BoogieIcfgContainer [2019-11-20 11:20:49,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:20:49,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 11:20:49,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 11:20:49,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 11:20:49,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:20:18" (1/3) ... [2019-11-20 11:20:49,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba78dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:20:49, skipping insertion in model container [2019-11-20 11:20:49,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:18" (2/3) ... [2019-11-20 11:20:49,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba78dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:20:49, skipping insertion in model container [2019-11-20 11:20:49,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:20:49" (3/3) ... [2019-11-20 11:20:49,069 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0971.c [2019-11-20 11:20:49,083 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 11:20:49,091 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 11:20:49,101 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 11:20:49,126 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 11:20:49,126 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 11:20:49,126 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 11:20:49,127 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:20:49,127 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:20:49,127 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 11:20:49,127 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:20:49,128 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 11:20:49,147 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-20 11:20:49,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 11:20:49,152 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:20:49,153 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:20:49,154 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:20:49,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:20:49,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1032073611, now seen corresponding path program 1 times [2019-11-20 11:20:49,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:20:49,169 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [160187703] [2019-11-20 11:20:49,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-20 11:20:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:20:50,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 11:20:50,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:20:50,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:20:50,027 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:20:50,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:20:50,031 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [160187703] [2019-11-20 11:20:50,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:20:50,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 11:20:50,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086844441] [2019-11-20 11:20:50,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 11:20:50,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:20:50,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 11:20:50,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 11:20:50,045 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-20 11:20:50,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:20:50,062 INFO L93 Difference]: Finished difference Result 82 states and 136 transitions. [2019-11-20 11:20:50,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 11:20:50,063 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 11:20:50,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:20:50,071 INFO L225 Difference]: With dead ends: 82 [2019-11-20 11:20:50,071 INFO L226 Difference]: Without dead ends: 39 [2019-11-20 11:20:50,074 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 [2019-11-20 11:20:50,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-20 11:20:50,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-20 11:20:50,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-20 11:20:50,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-11-20 11:20:50,106 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 10 [2019-11-20 11:20:50,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:20:50,106 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-11-20 11:20:50,107 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 11:20:50,107 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2019-11-20 11:20:50,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 11:20:50,107 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:20:50,108 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:20:50,324 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 11:20:50,325 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:20:50,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:20:50,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1303233586, now seen corresponding path program 1 times [2019-11-20 11:20:50,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:20:50,326 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2025767933] [2019-11-20 11:20:50,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-20 11:20:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:20:51,155 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 11:20:51,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:20:51,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:20:51,215 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:20:51,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:20:51,289 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2025767933] [2019-11-20 11:20:51,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:20:51,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-20 11:20:51,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954036898] [2019-11-20 11:20:51,290 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 11:20:51,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:20:51,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 11:20:51,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 11:20:51,291 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 6 states. [2019-11-20 11:20:53,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:20:53,420 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2019-11-20 11:20:53,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 11:20:53,422 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-11-20 11:20:53,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:20:53,424 INFO L225 Difference]: With dead ends: 49 [2019-11-20 11:20:53,425 INFO L226 Difference]: Without dead ends: 44 [2019-11-20 11:20:53,427 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2019-11-20 11:20:53,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-11-20 11:20:53,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2019-11-20 11:20:53,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-20 11:20:53,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 52 transitions. [2019-11-20 11:20:53,448 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 52 transitions. Word has length 11 [2019-11-20 11:20:53,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:20:53,449 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 52 transitions. [2019-11-20 11:20:53,450 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 11:20:53,450 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2019-11-20 11:20:53,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 11:20:53,452 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:20:53,453 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:20:53,668 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 11:20:53,668 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:20:53,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:20:53,669 INFO L82 PathProgramCache]: Analyzing trace with hash -593045937, now seen corresponding path program 1 times [2019-11-20 11:20:53,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:20:53,670 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296594861] [2019-11-20 11:20:53,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-20 11:20:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:20:53,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 11:20:53,814 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:20:53,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:20:53,887 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:20:54,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:20:54,134 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296594861] [2019-11-20 11:20:54,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:20:54,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-20 11:20:54,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178401712] [2019-11-20 11:20:54,135 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 11:20:54,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:20:54,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 11:20:54,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-20 11:20:54,137 INFO L87 Difference]: Start difference. First operand 39 states and 52 transitions. Second operand 8 states. [2019-11-20 11:20:59,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:20:59,724 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2019-11-20 11:20:59,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 11:20:59,728 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-20 11:20:59,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:20:59,729 INFO L225 Difference]: With dead ends: 44 [2019-11-20 11:20:59,729 INFO L226 Difference]: Without dead ends: 39 [2019-11-20 11:20:59,729 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-20 11:20:59,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-20 11:20:59,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-20 11:20:59,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-20 11:20:59,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2019-11-20 11:20:59,736 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 11 [2019-11-20 11:20:59,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:20:59,738 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2019-11-20 11:20:59,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 11:20:59,739 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2019-11-20 11:20:59,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 11:20:59,741 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:20:59,742 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:20:59,956 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 11:20:59,956 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:20:59,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:20:59,957 INFO L82 PathProgramCache]: Analyzing trace with hash -197853759, now seen corresponding path program 1 times [2019-11-20 11:20:59,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:20:59,958 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1723502023] [2019-11-20 11:20:59,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/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 [2019-11-20 11:21:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:21:01,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 11:21:01,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:21:01,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:21:01,160 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:21:05,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:21:05,243 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1723502023] [2019-11-20 11:21:05,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:21:05,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 11:21:05,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502972220] [2019-11-20 11:21:05,244 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 11:21:05,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:21:05,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 11:21:05,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=35, Unknown=2, NotChecked=0, Total=56 [2019-11-20 11:21:05,244 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand 8 states. [2019-11-20 11:21:06,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:21:06,062 INFO L93 Difference]: Finished difference Result 68 states and 89 transitions. [2019-11-20 11:21:06,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:21:06,063 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2019-11-20 11:21:06,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:21:06,066 INFO L225 Difference]: With dead ends: 68 [2019-11-20 11:21:06,067 INFO L226 Difference]: Without dead ends: 39 [2019-11-20 11:21:06,067 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=34, Invalid=54, Unknown=2, NotChecked=0, Total=90 [2019-11-20 11:21:06,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-20 11:21:06,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-20 11:21:06,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-20 11:21:06,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2019-11-20 11:21:06,084 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 20 [2019-11-20 11:21:06,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:21:06,085 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2019-11-20 11:21:06,085 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 11:21:06,085 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2019-11-20 11:21:06,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 11:21:06,086 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:21:06,087 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:21:06,310 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-20 11:21:06,310 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:21:06,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:21:06,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1415968622, now seen corresponding path program 1 times [2019-11-20 11:21:06,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:21:06,311 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002803159] [2019-11-20 11:21:06,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/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 [2019-11-20 11:21:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:21:07,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 11:21:07,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:21:07,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:21:07,639 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:21:07,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:21:07,709 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002803159] [2019-11-20 11:21:07,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:21:07,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 11:21:07,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409674056] [2019-11-20 11:21:07,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 11:21:07,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:21:07,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 11:21:07,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-20 11:21:07,711 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand 8 states. [2019-11-20 11:21:07,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:21:07,926 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2019-11-20 11:21:07,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:21:07,927 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2019-11-20 11:21:07,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:21:07,928 INFO L225 Difference]: With dead ends: 39 [2019-11-20 11:21:07,928 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 11:21:07,928 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-11-20 11:21:07,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 11:21:07,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 11:21:07,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 11:21:07,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 11:21:07,929 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2019-11-20 11:21:07,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:21:07,929 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:21:07,929 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 11:21:07,930 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 11:21:07,930 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 11:21:08,130 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-20 11:21:08,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 11:21:08,358 INFO L440 ceAbstractionStarter]: At program point L35-2(lines 35 40) the Hoare annotation is: false [2019-11-20 11:21:08,358 INFO L444 ceAbstractionStarter]: For program point L35-3(lines 35 40) no Hoare annotation was computed. [2019-11-20 11:21:08,358 INFO L444 ceAbstractionStarter]: For program point L44(lines 44 45) no Hoare annotation was computed. [2019-11-20 11:21:08,358 INFO L444 ceAbstractionStarter]: For program point L69(lines 69 85) no Hoare annotation was computed. [2019-11-20 11:21:08,358 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 11:21:08,358 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 11:21:08,358 INFO L444 ceAbstractionStarter]: For program point L61-1(lines 61 66) no Hoare annotation was computed. [2019-11-20 11:21:08,358 INFO L440 ceAbstractionStarter]: At program point L61-2(lines 61 66) the Hoare annotation is: false [2019-11-20 11:21:08,359 INFO L444 ceAbstractionStarter]: For program point L61-3(lines 61 66) no Hoare annotation was computed. [2019-11-20 11:21:08,359 INFO L444 ceAbstractionStarter]: For program point L70(lines 70 77) no Hoare annotation was computed. [2019-11-20 11:21:08,359 INFO L440 ceAbstractionStarter]: At program point L161(line 161) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (forall ((ULTIMATE.start___ieee754_log10_~lx~1 (_ BitVec 32))) (not (= (_ bv0 32) (bvor (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_log10_~hx~1) ULTIMATE.start___ieee754_log10_~lx~1)))) (= |ULTIMATE.start___ieee754_log10_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)) (= ULTIMATE.start___ieee754_log10_~x .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|))) [2019-11-20 11:21:08,359 INFO L444 ceAbstractionStarter]: For program point L79(lines 79 84) no Hoare annotation was computed. [2019-11-20 11:21:08,359 INFO L444 ceAbstractionStarter]: For program point L46(lines 46 47) no Hoare annotation was computed. [2019-11-20 11:21:08,359 INFO L444 ceAbstractionStarter]: For program point L104(lines 104 107) no Hoare annotation was computed. [2019-11-20 11:21:08,359 INFO L444 ceAbstractionStarter]: For program point L71(lines 71 76) no Hoare annotation was computed. [2019-11-20 11:21:08,359 INFO L444 ceAbstractionStarter]: For program point L96(lines 96 108) no Hoare annotation was computed. [2019-11-20 11:21:08,360 INFO L447 ceAbstractionStarter]: At program point L179(lines 163 180) the Hoare annotation is: true [2019-11-20 11:21:08,360 INFO L444 ceAbstractionStarter]: For program point L138-1(lines 138 142) no Hoare annotation was computed. [2019-11-20 11:21:08,360 INFO L440 ceAbstractionStarter]: At program point L138-2(lines 138 142) the Hoare annotation is: false [2019-11-20 11:21:08,360 INFO L444 ceAbstractionStarter]: For program point L131(lines 131 143) no Hoare annotation was computed. [2019-11-20 11:21:08,360 INFO L444 ceAbstractionStarter]: For program point L131-1(lines 118 158) no Hoare annotation was computed. [2019-11-20 11:21:08,360 INFO L444 ceAbstractionStarter]: For program point L98(lines 98 102) no Hoare annotation was computed. [2019-11-20 11:21:08,360 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 11:21:08,360 INFO L444 ceAbstractionStarter]: For program point L123-1(lines 123 128) no Hoare annotation was computed. [2019-11-20 11:21:08,360 INFO L440 ceAbstractionStarter]: At program point L123-2(lines 123 128) the Hoare annotation is: (= ULTIMATE.start___ieee754_log10_~x (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53))) [2019-11-20 11:21:08,361 INFO L444 ceAbstractionStarter]: For program point L123-3(lines 123 128) no Hoare annotation was computed. [2019-11-20 11:21:08,361 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2019-11-20 11:21:08,361 INFO L440 ceAbstractionStarter]: At program point L107(lines 30 109) the Hoare annotation is: false [2019-11-20 11:21:08,361 INFO L444 ceAbstractionStarter]: For program point L132(lines 132 133) no Hoare annotation was computed. [2019-11-20 11:21:08,361 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 11:21:08,361 INFO L440 ceAbstractionStarter]: At program point L157(lines 118 158) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (forall ((ULTIMATE.start___ieee754_log10_~lx~1 (_ BitVec 32))) (not (= (_ bv0 32) (bvor (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_log10_~hx~1) ULTIMATE.start___ieee754_log10_~lx~1)))) (= |ULTIMATE.start___ieee754_log10_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)) (= ULTIMATE.start___ieee754_log10_~x .cse0))) [2019-11-20 11:21:08,361 INFO L444 ceAbstractionStarter]: For program point L50-1(lines 50 54) no Hoare annotation was computed. [2019-11-20 11:21:08,362 INFO L440 ceAbstractionStarter]: At program point L50-2(lines 50 54) the Hoare annotation is: false [2019-11-20 11:21:08,362 INFO L444 ceAbstractionStarter]: For program point L174(lines 174 177) no Hoare annotation was computed. [2019-11-20 11:21:08,362 INFO L444 ceAbstractionStarter]: For program point L150-1(lines 150 155) no Hoare annotation was computed. [2019-11-20 11:21:08,362 INFO L440 ceAbstractionStarter]: At program point L150-2(lines 150 155) the Hoare annotation is: false [2019-11-20 11:21:08,362 INFO L444 ceAbstractionStarter]: For program point L150-3(lines 150 155) no Hoare annotation was computed. [2019-11-20 11:21:08,362 INFO L444 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2019-11-20 11:21:08,362 INFO L444 ceAbstractionStarter]: For program point L43(lines 43 55) no Hoare annotation was computed. [2019-11-20 11:21:08,362 INFO L444 ceAbstractionStarter]: For program point L43-1(lines 30 109) no Hoare annotation was computed. [2019-11-20 11:21:08,363 INFO L444 ceAbstractionStarter]: For program point L134(lines 134 135) no Hoare annotation was computed. [2019-11-20 11:21:08,363 INFO L444 ceAbstractionStarter]: For program point L35-1(lines 35 40) no Hoare annotation was computed. [2019-11-20 11:21:08,374 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-11-20 11:21:08,377 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,377 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,377 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,381 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-11-20 11:21:08,381 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,381 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,381 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,382 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,383 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-11-20 11:21:08,383 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,384 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,384 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,384 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,385 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-11-20 11:21:08,385 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,386 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,386 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,386 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,387 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,388 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:21:08 BoogieIcfgContainer [2019-11-20 11:21:08,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 11:21:08,390 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:21:08,390 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:21:08,390 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:21:08,391 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:20:49" (3/4) ... [2019-11-20 11:21:08,394 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 11:21:08,405 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2019-11-20 11:21:08,405 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-20 11:21:08,406 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 11:21:08,427 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((forall ULTIMATE.start___ieee754_log10_~lx~1 : bv32 :: !(0bv32 == ~bvor32(~bvand32(2147483647bv32, hx), ULTIMATE.start___ieee754_log10_~lx~1))) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-20 11:21:08,428 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((forall ULTIMATE.start___ieee754_log10_~lx~1 : bv32 :: !(0bv32 == ~bvor32(~bvand32(2147483647bv32, hx), ULTIMATE.start___ieee754_log10_~lx~1))) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result [2019-11-20 11:21:08,489 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9f9860de-8fbc-45be-8a15-9ebb927c4d09/bin/uautomizer/witness.graphml [2019-11-20 11:21:08,489 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:21:08,491 INFO L168 Benchmark]: Toolchain (without parser) took 50380.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 956.4 MB in the beginning and 905.5 MB in the end (delta: 51.0 MB). Peak memory consumption was 216.1 MB. Max. memory is 11.5 GB. [2019-11-20 11:21:08,491 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:21:08,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 402.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -197.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:21:08,492 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.04 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. [2019-11-20 11:21:08,492 INFO L168 Benchmark]: Boogie Preprocessor took 81.93 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-20 11:21:08,493 INFO L168 Benchmark]: RCFGBuilder took 30385.34 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: 41.8 MB). Peak memory consumption was 41.8 MB. Max. memory is 11.5 GB. [2019-11-20 11:21:08,493 INFO L168 Benchmark]: TraceAbstraction took 19325.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 912.1 MB in the end (delta: 193.7 MB). Peak memory consumption was 193.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:21:08,493 INFO L168 Benchmark]: Witness Printer took 99.00 ms. Allocated memory is still 1.2 GB. Free memory was 912.1 MB in the beginning and 905.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-20 11:21:08,495 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 402.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -197.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 79.04 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 81.93 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 30385.34 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: 41.8 MB). Peak memory consumption was 41.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19325.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 912.1 MB in the end (delta: 193.7 MB). Peak memory consumption was 193.7 MB. Max. memory is 11.5 GB. * Witness Printer took 99.00 ms. Allocated memory is still 1.2 GB. Free memory was 912.1 MB in the beginning and 905.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 175]: 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: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 161]: Loop Invariant [2019-11-20 11:21:08,503 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-11-20 11:21:08,504 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,504 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,504 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,504 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-11-20 11:21:08,505 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,505 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,506 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,506 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((forall ULTIMATE.start___ieee754_log10_~lx~1 : bv32 :: !(0bv32 == ~bvor32(~bvand32(2147483647bv32, hx), ULTIMATE.start___ieee754_log10_~lx~1))) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 118]: Loop Invariant [2019-11-20 11:21:08,507 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-11-20 11:21:08,507 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,507 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,507 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,507 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,508 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-11-20 11:21:08,508 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,508 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,508 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,509 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((forall ULTIMATE.start___ieee754_log10_~lx~1 : bv32 :: !(0bv32 == ~bvor32(~bvand32(2147483647bv32, hx), ULTIMATE.start___ieee754_log10_~lx~1))) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 123]: Loop Invariant [2019-11-20 11:21:08,510 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:21:08,510 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 150]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: SAFE, OverallTime: 19.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 187 SDtfs, 138 SDslu, 529 SDs, 0 SdLazy, 107 SolverSat, 18 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 7.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 118 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 72 HoareAnnotationTreeSize, 10 FomulaSimplifications, 14 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 82 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 142 ConstructedInterpolants, 20 QuantifiedInterpolants, 9924 SizeOfPredicates, 24 NumberOfNonLiveVariables, 344 ConjunctsInSsa, 34 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...