./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/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 04e5b929de4769f01a6c1d571d92eec73b544ab1 ................................................................................................................................................................................................................................................................................................................. 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_399e3b06-9803-46f4-a349-b725b91f1060/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/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 04e5b929de4769f01a6c1d571d92eec73b544ab1 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 16:08:02,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:08:02,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:08:02,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:08:02,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:08:02,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:08:02,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:08:02,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:08:02,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:08:02,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:08:02,918 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:08:02,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:08:02,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:08:02,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:08:02,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:08:02,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:08:02,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:08:02,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:08:02,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:08:02,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:08:02,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:08:02,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:08:02,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:08:02,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:08:02,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:08:02,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:08:02,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:08:02,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:08:02,934 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:08:02,935 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:08:02,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:08:02,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:08:02,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:08:02,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:08:02,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:08:02,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:08:02,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:08:02,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:08:02,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:08:02,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:08:02,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:08:02,940 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 16:08:02,952 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:08:02,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:08:02,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:08:02,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:08:02,953 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:08:02,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:08:02,953 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:08:02,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:08:02,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:08:02,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:08:02,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:08:02,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:08:02,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:08:02,954 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:08:02,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:08:02,954 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:08:02,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:08:02,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:08:02,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:08:02,955 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:08:02,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:08:02,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:08:02,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:08:02,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:08:02,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:08:02,956 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:08:02,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:08:02,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:08:02,956 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:08:02,956 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_399e3b06-9803-46f4-a349-b725b91f1060/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 -> 04e5b929de4769f01a6c1d571d92eec73b544ab1 [2019-12-07 16:08:03,062 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:08:03,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:08:03,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:08:03,072 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:08:03,072 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:08:03,073 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2019-12-07 16:08:03,109 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/bin/uautomizer/data/12bbb485d/fc19e6f4108c4ed894833fceaf2e99c5/FLAG64cc71388 [2019-12-07 16:08:03,533 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:08:03,534 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2019-12-07 16:08:03,538 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/bin/uautomizer/data/12bbb485d/fc19e6f4108c4ed894833fceaf2e99c5/FLAG64cc71388 [2019-12-07 16:08:03,547 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/bin/uautomizer/data/12bbb485d/fc19e6f4108c4ed894833fceaf2e99c5 [2019-12-07 16:08:03,549 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:08:03,550 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:08:03,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:08:03,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:08:03,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:08:03,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:08:03" (1/1) ... [2019-12-07 16:08:03,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@151e0143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:03, skipping insertion in model container [2019-12-07 16:08:03,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:08:03" (1/1) ... [2019-12-07 16:08:03,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:08:03,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:08:03,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:08:03,741 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:08:03,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:08:03,784 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:08:03,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:03 WrapperNode [2019-12-07 16:08:03,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:08:03,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:08:03,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:08:03,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:08:03,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:03" (1/1) ... [2019-12-07 16:08:03,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:03" (1/1) ... [2019-12-07 16:08:03,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:08:03,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:08:03,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:08:03,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:08:03,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:03" (1/1) ... [2019-12-07 16:08:03,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:03" (1/1) ... [2019-12-07 16:08:03,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:03" (1/1) ... [2019-12-07 16:08:03,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:03" (1/1) ... [2019-12-07 16:08:03,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:03" (1/1) ... [2019-12-07 16:08:03,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:03" (1/1) ... [2019-12-07 16:08:03,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:03" (1/1) ... [2019-12-07 16:08:03,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:08:03,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:08:03,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:08:03,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:08:03,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/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 [2019-12-07 16:08:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:08:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 16:08:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 16:08:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 16:08:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:08:03,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:08:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 16:08:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-07 16:08:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 16:08:04,108 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:08:04,108 INFO L287 CfgBuilder]: Removed 20 assume(true) statements. [2019-12-07 16:08:04,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:08:04 BoogieIcfgContainer [2019-12-07 16:08:04,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:08:04,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:08:04,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:08:04,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:08:04,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:08:03" (1/3) ... [2019-12-07 16:08:04,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29850992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:08:04, skipping insertion in model container [2019-12-07 16:08:04,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:03" (2/3) ... [2019-12-07 16:08:04,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29850992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:08:04, skipping insertion in model container [2019-12-07 16:08:04,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:08:04" (3/3) ... [2019-12-07 16:08:04,113 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620a.c [2019-12-07 16:08:04,120 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:08:04,124 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 16:08:04,132 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 16:08:04,147 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:08:04,147 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:08:04,147 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:08:04,147 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:08:04,148 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:08:04,148 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:08:04,148 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:08:04,148 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:08:04,157 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-12-07 16:08:04,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 16:08:04,161 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:08:04,162 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:08:04,162 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:08:04,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:04,166 INFO L82 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2019-12-07 16:08:04,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:04,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043424285] [2019-12-07 16:08:04,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:04,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:04,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:08:04,265 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043424285] [2019-12-07 16:08:04,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:08:04,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:08:04,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75678046] [2019-12-07 16:08:04,268 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 16:08:04,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:08:04,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 16:08:04,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 16:08:04,278 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2019-12-07 16:08:04,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:08:04,291 INFO L93 Difference]: Finished difference Result 76 states and 120 transitions. [2019-12-07 16:08:04,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 16:08:04,292 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 16:08:04,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:08:04,299 INFO L225 Difference]: With dead ends: 76 [2019-12-07 16:08:04,299 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 16:08:04,301 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 [2019-12-07 16:08:04,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 16:08:04,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-07 16:08:04,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 16:08:04,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2019-12-07 16:08:04,324 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 11 [2019-12-07 16:08:04,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:08:04,324 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2019-12-07 16:08:04,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 16:08:04,325 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2019-12-07 16:08:04,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 16:08:04,325 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:08:04,325 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:08:04,325 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:08:04,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:04,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1316832376, now seen corresponding path program 1 times [2019-12-07 16:08:04,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:04,326 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198154548] [2019-12-07 16:08:04,326 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:04,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:04,412 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:08:04,413 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 16:08:04,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:08:04 BoogieIcfgContainer [2019-12-07 16:08:04,439 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:08:04,440 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:08:04,440 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:08:04,440 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:08:04,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:08:04" (3/4) ... [2019-12-07 16:08:04,443 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 16:08:04,443 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:08:04,444 INFO L168 Benchmark]: Toolchain (without parser) took 893.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 943.6 MB in the beginning and 1.0 GB in the end (delta: -84.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:08:04,444 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:08:04,445 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -151.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:08:04,445 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:08:04,446 INFO L168 Benchmark]: Boogie Preprocessor took 28.24 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:08:04,446 INFO L168 Benchmark]: RCFGBuilder took 262.59 ms. Allocated memory is still 1.1 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. [2019-12-07 16:08:04,446 INFO L168 Benchmark]: TraceAbstraction took 329.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:08:04,447 INFO L168 Benchmark]: Witness Printer took 3.13 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:08:04,449 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 234.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -151.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.24 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 262.59 ms. Allocated memory is still 1.1 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 329.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.13 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 159]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 154, overapproximation of bitwiseAnd at line 73, overapproximation of someBinaryArithmeticDOUBLEoperation at line 82, overapproximation of someBinaryDOUBLEComparisonOperation at line 158. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L154] double x = -0.0; [L65] double w, s1, s2, z; [L66] __int32_t ix, hx, id; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L69] ieee_double_shape_type gh_u; [L70] gh_u.value = (x) [L71] EXPR gh_u.parts.msw [L71] (hx) = gh_u.parts.msw [L73] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L74] COND TRUE ix >= 0x44100000 [L75] __uint32_t low; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L77] ieee_double_shape_type gl_u; [L78] gl_u.value = (x) [L79] EXPR gl_u.parts.lsw [L79] (low) = gl_u.parts.lsw [L81] COND TRUE ix > 0x7ff00000 || (ix == 0x7ff00000 && (low != 0)) [L82] return x + x; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L155] double res = atan_double(x); [L158] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L158] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L159] __VERIFIER_error() VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 50 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=39occurred 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 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 0.1.25-f470102 [2019-12-07 16:08:05,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:08:05,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:08:05,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:08:05,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:08:05,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:08:05,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:08:05,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:08:05,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:08:05,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:08:05,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:08:05,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:08:05,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:08:05,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:08:05,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:08:05,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:08:05,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:08:05,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:08:05,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:08:05,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:08:05,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:08:05,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:08:05,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:08:05,838 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:08:05,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:08:05,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:08:05,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:08:05,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:08:05,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:08:05,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:08:05,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:08:05,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:08:05,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:08:05,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:08:05,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:08:05,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:08:05,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:08:05,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:08:05,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:08:05,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:08:05,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:08:05,847 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 16:08:05,857 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:08:05,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:08:05,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:08:05,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:08:05,858 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:08:05,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:08:05,858 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:08:05,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:08:05,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:08:05,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:08:05,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:08:05,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:08:05,859 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 16:08:05,859 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 16:08:05,859 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:08:05,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:08:05,860 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:08:05,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:08:05,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:08:05,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:08:05,860 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:08:05,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:08:05,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:08:05,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:08:05,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:08:05,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:08:05,861 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 16:08:05,861 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 16:08:05,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:08:05,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:08:05,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:08:05,861 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_399e3b06-9803-46f4-a349-b725b91f1060/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 -> 04e5b929de4769f01a6c1d571d92eec73b544ab1 [2019-12-07 16:08:06,027 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:08:06,037 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:08:06,040 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:08:06,041 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:08:06,042 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:08:06,042 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2019-12-07 16:08:06,084 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/bin/uautomizer/data/23eaee311/4b73be97bc0b402abf7f322013c6bf01/FLAGb503b2488 [2019-12-07 16:08:06,427 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:08:06,427 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2019-12-07 16:08:06,432 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/bin/uautomizer/data/23eaee311/4b73be97bc0b402abf7f322013c6bf01/FLAGb503b2488 [2019-12-07 16:08:06,441 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/bin/uautomizer/data/23eaee311/4b73be97bc0b402abf7f322013c6bf01 [2019-12-07 16:08:06,442 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:08:06,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:08:06,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:08:06,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:08:06,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:08:06,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:08:06" (1/1) ... [2019-12-07 16:08:06,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b30e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:06, skipping insertion in model container [2019-12-07 16:08:06,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:08:06" (1/1) ... [2019-12-07 16:08:06,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:08:06,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:08:06,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:08:06,602 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:08:06,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:08:06,688 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:08:06,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:06 WrapperNode [2019-12-07 16:08:06,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:08:06,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:08:06,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:08:06,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:08:06,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:06" (1/1) ... [2019-12-07 16:08:06,703 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:06" (1/1) ... [2019-12-07 16:08:06,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:08:06,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:08:06,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:08:06,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:08:06,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:06" (1/1) ... [2019-12-07 16:08:06,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:06" (1/1) ... [2019-12-07 16:08:06,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:06" (1/1) ... [2019-12-07 16:08:06,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:06" (1/1) ... [2019-12-07 16:08:06,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:06" (1/1) ... [2019-12-07 16:08:06,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:06" (1/1) ... [2019-12-07 16:08:06,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:06" (1/1) ... [2019-12-07 16:08:06,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:08:06,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:08:06,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:08:06,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:08:06,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/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 [2019-12-07 16:08:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 16:08:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 16:08:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:08:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-12-07 16:08:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 16:08:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:08:06,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:08:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 16:08:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 16:08:22,251 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:08:22,251 INFO L287 CfgBuilder]: Removed 20 assume(true) statements. [2019-12-07 16:08:22,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:08:22 BoogieIcfgContainer [2019-12-07 16:08:22,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:08:22,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:08:22,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:08:22,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:08:22,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:08:06" (1/3) ... [2019-12-07 16:08:22,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@119faf06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:08:22, skipping insertion in model container [2019-12-07 16:08:22,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:06" (2/3) ... [2019-12-07 16:08:22,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@119faf06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:08:22, skipping insertion in model container [2019-12-07 16:08:22,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:08:22" (3/3) ... [2019-12-07 16:08:22,257 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620a.c [2019-12-07 16:08:22,264 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:08:22,269 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 16:08:22,276 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 16:08:22,290 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:08:22,291 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:08:22,291 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:08:22,291 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:08:22,291 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:08:22,291 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:08:22,291 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:08:22,291 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:08:22,300 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-12-07 16:08:22,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 16:08:22,304 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:08:22,305 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:08:22,305 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:08:22,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:22,309 INFO L82 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2019-12-07 16:08:22,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 16:08:22,316 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496090438] [2019-12-07 16:08:22,316 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/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 [2019-12-07 16:08:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:22,587 INFO L264 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 16:08:22,592 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:08:22,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:08:22,601 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:08:22,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:08:22,605 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496090438] [2019-12-07 16:08:22,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:08:22,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 16:08:22,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055329385] [2019-12-07 16:08:22,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 16:08:22,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 16:08:22,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 16:08:22,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 16:08:22,619 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2019-12-07 16:08:22,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:08:22,634 INFO L93 Difference]: Finished difference Result 76 states and 120 transitions. [2019-12-07 16:08:22,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 16:08:22,635 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 16:08:22,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:08:22,643 INFO L225 Difference]: With dead ends: 76 [2019-12-07 16:08:22,643 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 16:08:22,646 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 16:08:22,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 16:08:22,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-07 16:08:22,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 16:08:22,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2019-12-07 16:08:22,670 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 11 [2019-12-07 16:08:22,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:08:22,670 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2019-12-07 16:08:22,670 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 16:08:22,671 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2019-12-07 16:08:22,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 16:08:22,671 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:08:22,671 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:08:22,872 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 16:08:22,873 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:08:22,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:22,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1316832376, now seen corresponding path program 1 times [2019-12-07 16:08:22,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 16:08:22,876 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100006693] [2019-12-07 16:08:22,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/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 [2019-12-07 16:08:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:23,190 INFO L264 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 16:08:23,193 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:08:23,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:08:23,253 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:08:23,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:08:23,302 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100006693] [2019-12-07 16:08:23,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:08:23,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 16:08:23,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544625050] [2019-12-07 16:08:23,303 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 16:08:23,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 16:08:23,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 16:08:23,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 16:08:23,304 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. Second operand 8 states. [2019-12-07 16:08:31,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:08:31,388 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2019-12-07 16:08:31,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 16:08:31,389 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2019-12-07 16:08:31,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:08:31,389 INFO L225 Difference]: With dead ends: 59 [2019-12-07 16:08:31,390 INFO L226 Difference]: Without dead ends: 32 [2019-12-07 16:08:31,391 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-12-07 16:08:31,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-07 16:08:31,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2019-12-07 16:08:31,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-12-07 16:08:31,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-12-07 16:08:31,394 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 13 [2019-12-07 16:08:31,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:08:31,394 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-12-07 16:08:31,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 16:08:31,395 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-12-07 16:08:31,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 16:08:31,395 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:08:31,395 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:08:31,596 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 16:08:31,597 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:08:31,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:31,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1440122883, now seen corresponding path program 1 times [2019-12-07 16:08:31,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 16:08:31,599 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019384234] [2019-12-07 16:08:31,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/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 [2019-12-07 16:08:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:31,902 INFO L264 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 16:08:31,903 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:08:31,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:08:31,929 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:08:31,930 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:08:31,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:08:31,952 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019384234] [2019-12-07 16:08:31,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:08:31,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-12-07 16:08:31,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732729146] [2019-12-07 16:08:31,952 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 16:08:31,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 16:08:31,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 16:08:31,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-12-07 16:08:31,953 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2019-12-07 16:08:39,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:08:39,484 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-12-07 16:08:39,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 16:08:39,485 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-12-07 16:08:39,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:08:39,485 INFO L225 Difference]: With dead ends: 35 [2019-12-07 16:08:39,485 INFO L226 Difference]: Without dead ends: 32 [2019-12-07 16:08:39,486 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 16:08:39,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-07 16:08:39,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2019-12-07 16:08:39,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-07 16:08:39,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-12-07 16:08:39,489 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2019-12-07 16:08:39,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:08:39,489 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-12-07 16:08:39,489 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 16:08:39,489 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-12-07 16:08:39,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 16:08:39,490 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:08:39,490 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:08:39,690 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 16:08:39,692 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:08:39,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:39,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1041172097, now seen corresponding path program 1 times [2019-12-07 16:08:39,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 16:08:39,694 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624182621] [2019-12-07 16:08:39,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/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 [2019-12-07 16:08:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:43,546 INFO L264 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 16:08:43,547 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:08:43,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:08:43,603 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:08:44,299 WARN L192 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-12-07 16:08:44,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:08:44,642 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1624182621] [2019-12-07 16:08:44,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:08:44,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 16:08:44,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20255568] [2019-12-07 16:08:44,643 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 16:08:44,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 16:08:44,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 16:08:44,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 16:08:44,644 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 6 states. [2019-12-07 16:08:44,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:08:44,807 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2019-12-07 16:08:44,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:08:44,816 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-12-07 16:08:44,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:08:44,817 INFO L225 Difference]: With dead ends: 32 [2019-12-07 16:08:44,817 INFO L226 Difference]: Without dead ends: 18 [2019-12-07 16:08:44,817 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 16:08:44,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-07 16:08:44,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-07 16:08:44,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 16:08:44,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-12-07 16:08:44,820 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2019-12-07 16:08:44,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:08:44,820 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-12-07 16:08:44,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 16:08:44,820 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-12-07 16:08:44,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 16:08:44,821 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:08:44,821 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:08:45,021 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 16:08:45,022 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:08:45,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:45,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1453962584, now seen corresponding path program 1 times [2019-12-07 16:08:45,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 16:08:45,024 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92403156] [2019-12-07 16:08:45,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/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 [2019-12-07 16:08:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:45,349 INFO L264 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 14 conjunts are in the unsatisfiable core [2019-12-07 16:08:45,351 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:08:45,406 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:08:45,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:08:45,432 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:08:45,433 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:08:45,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:08:45,616 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92403156] [2019-12-07 16:08:45,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:08:45,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2019-12-07 16:08:45,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278412545] [2019-12-07 16:08:45,616 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-12-07 16:08:45,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 16:08:45,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-12-07 16:08:45,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-12-07 16:08:45,617 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 14 states. [2019-12-07 16:08:45,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:08:45,901 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-12-07 16:08:45,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 16:08:45,901 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2019-12-07 16:08:45,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:08:45,902 INFO L225 Difference]: With dead ends: 18 [2019-12-07 16:08:45,902 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 16:08:45,902 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2019-12-07 16:08:45,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 16:08:45,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 16:08:45,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 16:08:45,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 16:08:45,903 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-12-07 16:08:45,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:08:45,903 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:08:45,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-12-07 16:08:45,903 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 16:08:45,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 16:08:46,104 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 16:08:46,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 16:08:46,308 INFO L246 CegarLoopResult]: For program point L68-3(lines 68 72) no Hoare annotation was computed. [2019-12-07 16:08:46,308 INFO L246 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2019-12-07 16:08:46,308 INFO L246 CegarLoopResult]: For program point L126(lines 126 131) no Hoare annotation was computed. [2019-12-07 16:08:46,308 INFO L246 CegarLoopResult]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2019-12-07 16:08:46,308 INFO L242 CegarLoopResult]: At program point L19-2(lines 19 23) the Hoare annotation is: false [2019-12-07 16:08:46,308 INFO L242 CegarLoopResult]: At program point L143(lines 134 144) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= ULTIMATE.start_main_~res~0 .cse0) (= .cse0 |ULTIMATE.start_atan_double_#res|) (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) |ULTIMATE.start_main_#t~short31| (= (_ bv0 32) (bvadd |ULTIMATE.start___signbit_double_#res| (_ bv4294967295 32))) (= ULTIMATE.start_atan_double_~x .cse0) (exists ((|v_skolemized_q#valueAsBitvector_13| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_13|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_13|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_13|)) (fp.neg (_ +zero 11 53))) (= ULTIMATE.start___signbit_double_~msw~0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_13|)))) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___signbit_double_~x .cse0))) [2019-12-07 16:08:46,308 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 16:08:46,308 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 16:08:46,308 INFO L246 CegarLoopResult]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2019-12-07 16:08:46,309 INFO L242 CegarLoopResult]: At program point L137-2(lines 137 141) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= ULTIMATE.start_main_~res~0 .cse0) (= .cse0 |ULTIMATE.start_atan_double_#res|) (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) |ULTIMATE.start_main_#t~short31| (= ULTIMATE.start_atan_double_~x .cse0) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___signbit_double_~x .cse0))) [2019-12-07 16:08:46,309 INFO L246 CegarLoopResult]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2019-12-07 16:08:46,309 INFO L246 CegarLoopResult]: For program point L96(lines 96 112) no Hoare annotation was computed. [2019-12-07 16:08:46,309 INFO L242 CegarLoopResult]: At program point L30(lines 17 31) the Hoare annotation is: false [2019-12-07 16:08:46,309 INFO L246 CegarLoopResult]: For program point L88(lines 88 113) no Hoare annotation was computed. [2019-12-07 16:08:46,309 INFO L246 CegarLoopResult]: For program point L105(lines 105 111) no Hoare annotation was computed. [2019-12-07 16:08:46,309 INFO L246 CegarLoopResult]: For program point L105-2(lines 88 113) no Hoare annotation was computed. [2019-12-07 16:08:46,309 INFO L249 CegarLoopResult]: At program point L163(lines 146 164) the Hoare annotation is: true [2019-12-07 16:08:46,309 INFO L246 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2019-12-07 16:08:46,309 INFO L246 CegarLoopResult]: For program point L97(lines 97 103) no Hoare annotation was computed. [2019-12-07 16:08:46,309 INFO L246 CegarLoopResult]: For program point L130-2(line 130) no Hoare annotation was computed. [2019-12-07 16:08:46,310 INFO L242 CegarLoopResult]: At program point L130-3(lines 64 132) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= .cse0 |ULTIMATE.start_atan_double_#res|) (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) (= ULTIMATE.start_atan_double_~x .cse0) (= currentRoundingMode roundNearestTiesToEven))) [2019-12-07 16:08:46,310 INFO L246 CegarLoopResult]: For program point L89(lines 89 92) no Hoare annotation was computed. [2019-12-07 16:08:46,310 INFO L246 CegarLoopResult]: For program point L89-2(lines 89 92) no Hoare annotation was computed. [2019-12-07 16:08:46,310 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 16:08:46,310 INFO L246 CegarLoopResult]: For program point L90(lines 90 91) no Hoare annotation was computed. [2019-12-07 16:08:46,310 INFO L246 CegarLoopResult]: For program point L24(lines 24 29) no Hoare annotation was computed. [2019-12-07 16:08:46,310 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 159) no Hoare annotation was computed. [2019-12-07 16:08:46,310 INFO L246 CegarLoopResult]: For program point L24-1(lines 17 31) no Hoare annotation was computed. [2019-12-07 16:08:46,311 INFO L246 CegarLoopResult]: For program point L24-2(lines 24 29) no Hoare annotation was computed. [2019-12-07 16:08:46,311 INFO L246 CegarLoopResult]: For program point L74(lines 74 87) no Hoare annotation was computed. [2019-12-07 16:08:46,311 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 16:08:46,311 INFO L246 CegarLoopResult]: For program point L83(lines 83 86) no Hoare annotation was computed. [2019-12-07 16:08:46,311 INFO L246 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2019-12-07 16:08:46,311 INFO L246 CegarLoopResult]: For program point L158-2(lines 158 161) no Hoare annotation was computed. [2019-12-07 16:08:46,311 INFO L246 CegarLoopResult]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2019-12-07 16:08:46,311 INFO L242 CegarLoopResult]: At program point L76-2(lines 76 80) the Hoare annotation is: false [2019-12-07 16:08:46,311 INFO L246 CegarLoopResult]: For program point L76-3(lines 74 87) no Hoare annotation was computed. [2019-12-07 16:08:46,311 INFO L246 CegarLoopResult]: For program point L68-1(lines 68 72) no Hoare annotation was computed. [2019-12-07 16:08:46,312 INFO L242 CegarLoopResult]: At program point L68-2(lines 68 72) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) (= ULTIMATE.start_atan_double_~x (fp.neg (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 16:08:46,320 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:08:46,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,324 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:08:46,324 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,324 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,325 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 16:08:46,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 16:08:46,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 16:08:46,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 16:08:46,327 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:08:46,327 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,327 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,327 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 16:08:46,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 16:08:46,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 16:08:46,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 16:08:46,328 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:08:46,328 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,328 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,328 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,329 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:08:46,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,330 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:08:46,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,331 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:08:46,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,332 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:08:46,332 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,332 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,332 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:08:46 BoogieIcfgContainer [2019-12-07 16:08:46,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:08:46,334 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:08:46,334 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:08:46,334 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:08:46,335 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:08:22" (3/4) ... [2019-12-07 16:08:46,337 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 16:08:46,345 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2019-12-07 16:08:46,346 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-12-07 16:08:46,346 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 16:08:46,365 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_atan && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 16:08:46,365 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_atan && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2019-12-07 16:08:46,366 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_atan && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_13 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_13[63:63], v_skolemized_q#valueAsBitvector_13[62:52], v_skolemized_q#valueAsBitvector_13[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_q#valueAsBitvector_13[63:32])) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2019-12-07 16:08:46,392 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_399e3b06-9803-46f4-a349-b725b91f1060/bin/uautomizer/witness.graphml [2019-12-07 16:08:46,392 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:08:46,393 INFO L168 Benchmark]: Toolchain (without parser) took 39950.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 952.4 MB in the beginning and 850.9 MB in the end (delta: 101.5 MB). Peak memory consumption was 240.9 MB. Max. memory is 11.5 GB. [2019-12-07 16:08:46,393 INFO L168 Benchmark]: CDTParser took 0.17 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. [2019-12-07 16:08:46,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-12-07 16:08:46,394 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.67 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. [2019-12-07 16:08:46,394 INFO L168 Benchmark]: Boogie Preprocessor took 31.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 16:08:46,394 INFO L168 Benchmark]: RCFGBuilder took 15494.04 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: 47.3 MB). Peak memory consumption was 47.3 MB. Max. memory is 11.5 GB. [2019-12-07 16:08:46,395 INFO L168 Benchmark]: TraceAbstraction took 24081.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 857.8 MB in the end (delta: 216.7 MB). Peak memory consumption was 216.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:08:46,395 INFO L168 Benchmark]: Witness Printer took 58.09 ms. Allocated memory is still 1.2 GB. Free memory was 857.8 MB in the beginning and 850.9 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 16:08:46,396 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 244.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.67 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 31.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 15494.04 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: 47.3 MB). Peak memory consumption was 47.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 24081.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 857.8 MB in the end (delta: 216.7 MB). Peak memory consumption was 216.7 MB. Max. memory is 11.5 GB. * Witness Printer took 58.09 ms. Allocated memory is still 1.2 GB. Free memory was 857.8 MB in the beginning and 850.9 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - 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[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 159]: 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: 64]: Loop Invariant [2019-12-07 16:08:46,400 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:08:46,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,401 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:08:46,401 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,401 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,401 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_atan && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 134]: Loop Invariant [2019-12-07 16:08:46,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 16:08:46,402 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 16:08:46,402 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 16:08:46,402 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 16:08:46,402 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:08:46,402 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,402 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,402 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,403 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 16:08:46,403 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 16:08:46,403 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 16:08:46,403 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 16:08:46,403 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:08:46,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_atan && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_13 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_13[63:63], v_skolemized_q#valueAsBitvector_13[62:52], v_skolemized_q#valueAsBitvector_13[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_q#valueAsBitvector_13[63:32])) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant [2019-12-07 16:08:46,404 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:08:46,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,405 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:08:46,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_atan && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 68]: Loop Invariant [2019-12-07 16:08:46,406 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:08:46,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,407 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:08:46,407 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,407 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:08:46,407 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_atan && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Result: SAFE, OverallTime: 23.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 16.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 113 SDtfs, 176 SDslu, 186 SDs, 0 SdLazy, 79 SolverSat, 13 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 14.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 101 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 127 HoareAnnotationTreeSize, 8 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 4.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 130 ConstructedInterpolants, 16 QuantifiedInterpolants, 10009 SizeOfPredicates, 28 NumberOfNonLiveVariables, 555 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...