./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0920a.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_84c3d52c-1d80-4992-a023-bd1e60764e6e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0920a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/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 9a30c63b7ba6607790fb9b2ddb8b19a74f00f07b ................................................................................................................................................................................................................................................................................................................................................... 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_84c3d52c-1d80-4992-a023-bd1e60764e6e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0920a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/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 9a30c63b7ba6607790fb9b2ddb8b19a74f00f07b ....................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:21:57,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:21:57,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:21:57,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:21:57,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:21:57,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:21:57,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:21:57,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:21:57,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:21:57,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:21:57,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:21:57,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:21:57,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:21:57,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:21:57,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:21:57,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:21:57,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:21:57,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:21:57,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:21:57,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:21:57,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:21:57,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:21:57,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:21:57,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:21:57,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:21:57,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:21:57,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:21:57,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:21:57,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:21:57,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:21:57,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:21:57,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:21:57,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:21:57,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:21:57,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:21:57,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:21:57,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:21:57,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:21:57,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:21:57,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:21:57,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:21:57,993 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:21:58,002 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:21:58,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:21:58,003 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:21:58,003 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:21:58,003 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:21:58,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:21:58,003 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:21:58,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:21:58,004 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:21:58,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:21:58,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:21:58,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:21:58,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:21:58,004 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:21:58,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:21:58,004 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:21:58,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:21:58,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:21:58,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:21:58,005 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:21:58,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:21:58,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:21:58,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:21:58,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:21:58,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:21:58,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:21:58,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:21:58,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:21:58,006 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:21:58,006 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_84c3d52c-1d80-4992-a023-bd1e60764e6e/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 -> 9a30c63b7ba6607790fb9b2ddb8b19a74f00f07b [2019-12-07 18:21:58,107 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:21:58,117 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:21:58,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:21:58,121 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:21:58,121 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:21:58,122 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0920a.c [2019-12-07 18:21:58,163 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/bin/uautomizer/data/84603027d/251e55c6d09243d58bb00c0e92b45565/FLAG75d3dd449 [2019-12-07 18:21:58,603 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:21:58,603 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c [2019-12-07 18:21:58,608 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/bin/uautomizer/data/84603027d/251e55c6d09243d58bb00c0e92b45565/FLAG75d3dd449 [2019-12-07 18:21:58,616 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/bin/uautomizer/data/84603027d/251e55c6d09243d58bb00c0e92b45565 [2019-12-07 18:21:58,618 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:21:58,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:21:58,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:21:58,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:21:58,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:21:58,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:21:58" (1/1) ... [2019-12-07 18:21:58,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42246e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:58, skipping insertion in model container [2019-12-07 18:21:58,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:21:58" (1/1) ... [2019-12-07 18:21:58,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:21:58,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:21:58,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:21:58,807 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:21:58,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:21:58,849 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:21:58,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:58 WrapperNode [2019-12-07 18:21:58,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:21:58,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:21:58,850 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:21:58,850 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:21:58,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:58" (1/1) ... [2019-12-07 18:21:58,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:58" (1/1) ... [2019-12-07 18:21:58,880 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:21:58,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:21:58,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:21:58,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:21:58,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:58" (1/1) ... [2019-12-07 18:21:58,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:58" (1/1) ... [2019-12-07 18:21:58,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:58" (1/1) ... [2019-12-07 18:21:58,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:58" (1/1) ... [2019-12-07 18:21:58,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:58" (1/1) ... [2019-12-07 18:21:58,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:58" (1/1) ... [2019-12-07 18:21:58,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:58" (1/1) ... [2019-12-07 18:21:58,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:21:58,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:21:58,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:21:58,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:21:58,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/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 18:21:58,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:21:58,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 18:21:58,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:21:58,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 18:21:58,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:21:58,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:21:58,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:21:58,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:21:59,168 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:21:59,168 INFO L287 CfgBuilder]: Removed 18 assume(true) statements. [2019-12-07 18:21:59,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:21:59 BoogieIcfgContainer [2019-12-07 18:21:59,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:21:59,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:21:59,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:21:59,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:21:59,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:21:58" (1/3) ... [2019-12-07 18:21:59,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2dd27c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:21:59, skipping insertion in model container [2019-12-07 18:21:59,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:58" (2/3) ... [2019-12-07 18:21:59,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2dd27c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:21:59, skipping insertion in model container [2019-12-07 18:21:59,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:21:59" (3/3) ... [2019-12-07 18:21:59,173 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920a.c [2019-12-07 18:21:59,179 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:21:59,184 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:21:59,191 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:21:59,205 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:21:59,205 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:21:59,205 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:21:59,205 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:21:59,206 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:21:59,206 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:21:59,206 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:21:59,206 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:21:59,215 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-12-07 18:21:59,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 18:21:59,219 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:21:59,219 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:21:59,220 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:21:59,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:21:59,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1394505008, now seen corresponding path program 1 times [2019-12-07 18:21:59,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:21:59,229 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486433532] [2019-12-07 18:21:59,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:21:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:21:59,310 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 18:21:59,310 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486433532] [2019-12-07 18:21:59,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:21:59,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:21:59,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302963176] [2019-12-07 18:21:59,314 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:21:59,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:21:59,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:21:59,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:21:59,324 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-12-07 18:21:59,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:21:59,337 INFO L93 Difference]: Finished difference Result 69 states and 110 transitions. [2019-12-07 18:21:59,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:21:59,338 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-12-07 18:21:59,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:21:59,344 INFO L225 Difference]: With dead ends: 69 [2019-12-07 18:21:59,345 INFO L226 Difference]: Without dead ends: 32 [2019-12-07 18:21:59,346 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 18:21:59,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-07 18:21:59,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-07 18:21:59,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-07 18:21:59,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2019-12-07 18:21:59,369 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 43 transitions. Word has length 12 [2019-12-07 18:21:59,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:21:59,369 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 43 transitions. [2019-12-07 18:21:59,369 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:21:59,369 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2019-12-07 18:21:59,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 18:21:59,370 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:21:59,370 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:21:59,370 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:21:59,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:21:59,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1007782307, now seen corresponding path program 1 times [2019-12-07 18:21:59,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:21:59,371 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065763463] [2019-12-07 18:21:59,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:21:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:21:59,404 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 18:21:59,404 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065763463] [2019-12-07 18:21:59,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:21:59,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:21:59,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67753563] [2019-12-07 18:21:59,406 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:21:59,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:21:59,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:21:59,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:21:59,406 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. Second operand 3 states. [2019-12-07 18:21:59,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:21:59,418 INFO L93 Difference]: Finished difference Result 57 states and 78 transitions. [2019-12-07 18:21:59,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:21:59,418 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-12-07 18:21:59,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:21:59,419 INFO L225 Difference]: With dead ends: 57 [2019-12-07 18:21:59,419 INFO L226 Difference]: Without dead ends: 32 [2019-12-07 18:21:59,419 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:21:59,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-07 18:21:59,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-07 18:21:59,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-07 18:21:59,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2019-12-07 18:21:59,423 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 13 [2019-12-07 18:21:59,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:21:59,423 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions. [2019-12-07 18:21:59,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:21:59,423 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2019-12-07 18:21:59,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 18:21:59,424 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:21:59,424 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 18:21:59,424 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:21:59,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:21:59,424 INFO L82 PathProgramCache]: Analyzing trace with hash 32951480, now seen corresponding path program 1 times [2019-12-07 18:21:59,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:21:59,424 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585181706] [2019-12-07 18:21:59,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:21:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:21:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:21:59,513 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:21:59,513 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:21:59,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:21:59 BoogieIcfgContainer [2019-12-07 18:21:59,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:21:59,542 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:21:59,542 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:21:59,542 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:21:59,542 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:21:59" (3/4) ... [2019-12-07 18:21:59,545 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:21:59,545 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:21:59,546 INFO L168 Benchmark]: Toolchain (without parser) took 926.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 943.5 MB in the beginning and 1.0 GB in the end (delta: -75.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:21:59,547 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:21:59,547 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -142.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:21:59,547 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.91 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 18:21:59,548 INFO L168 Benchmark]: Boogie Preprocessor took 23.24 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 18:21:59,548 INFO L168 Benchmark]: RCFGBuilder took 264.84 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 18:21:59,549 INFO L168 Benchmark]: TraceAbstraction took 372.12 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 18:21:59,549 INFO L168 Benchmark]: Witness Printer took 3.08 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 18:21:59,552 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 229.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -142.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.91 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 23.24 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 264.84 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 372.12 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 3.08 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: 154]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 137, overapproximation of bitwiseAnd at line 133, overapproximation of someBinaryArithmeticDOUBLEoperation at line 72. Possible FailurePath: [L32-L41] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L43] static const double zero = 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L146] double x = __VERIFIER_nondet_double(); [L148] EXPR x < 0 && isfinite_double(x) [L127] __int32_t hx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L129] ieee_double_shape_type gh_u; [L130] gh_u.value = (x) [L131] EXPR gh_u.parts.msw [L131] (hx) = gh_u.parts.msw [L133] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L148] EXPR x < 0 && isfinite_double(x) VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L148] COND TRUE (x < 0 && isfinite_double(x)) [L46] double hfsq, f, s, z, R, w, t1, t2, dk; [L47] __int32_t k, hx, i, j; [L48] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L51] ieee_double_shape_type ew_u; [L52] ew_u.value = (x) [L53] EXPR ew_u.parts.msw [L53] (hx) = ew_u.parts.msw [L54] EXPR ew_u.parts.lsw [L54] (lx) = ew_u.parts.lsw [L57] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L58] COND FALSE !(hx < 0x00100000) VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L71] COND TRUE hx >= 0x7ff00000 [L72] return x + x; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L150] double res = __ieee754_log(x); [L137] return x != x; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L153] COND TRUE !isnan_double(res) [L154] __VERIFIER_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 91 SDtfs, 0 SDslu, 38 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 18:22:00,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:22:00,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:22:00,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:22:00,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:22:00,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:22:00,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:22:00,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:22:00,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:22:00,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:22:00,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:22:00,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:22:00,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:22:00,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:22:00,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:22:00,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:22:00,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:22:00,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:22:00,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:22:00,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:22:00,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:22:00,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:22:00,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:22:00,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:22:00,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:22:00,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:22:00,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:22:00,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:22:00,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:22:00,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:22:00,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:22:00,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:22:00,943 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:22:00,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:22:00,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:22:00,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:22:00,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:22:00,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:22:00,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:22:00,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:22:00,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:22:00,948 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 18:22:00,960 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:22:00,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:22:00,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:22:00,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:22:00,961 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:22:00,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:22:00,962 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:22:00,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:22:00,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:22:00,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:22:00,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:22:00,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:22:00,962 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 18:22:00,963 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 18:22:00,963 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:22:00,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:22:00,963 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:22:00,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:22:00,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:22:00,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:22:00,964 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:22:00,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:22:00,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:22:00,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:22:00,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:22:00,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:22:00,964 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 18:22:00,965 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 18:22:00,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:22:00,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:22:00,965 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 18:22:00,965 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_84c3d52c-1d80-4992-a023-bd1e60764e6e/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 -> 9a30c63b7ba6607790fb9b2ddb8b19a74f00f07b [2019-12-07 18:22:01,138 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:22:01,146 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:22:01,148 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:22:01,149 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:22:01,149 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:22:01,150 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0920a.c [2019-12-07 18:22:01,185 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/bin/uautomizer/data/149b68904/fa713b7860f3405aa470046d53ad203d/FLAG084e6ef29 [2019-12-07 18:22:01,601 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:22:01,601 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c [2019-12-07 18:22:01,606 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/bin/uautomizer/data/149b68904/fa713b7860f3405aa470046d53ad203d/FLAG084e6ef29 [2019-12-07 18:22:01,614 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/bin/uautomizer/data/149b68904/fa713b7860f3405aa470046d53ad203d [2019-12-07 18:22:01,616 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:22:01,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:22:01,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:22:01,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:22:01,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:22:01,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:22:01" (1/1) ... [2019-12-07 18:22:01,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cebc80a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:22:01, skipping insertion in model container [2019-12-07 18:22:01,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:22:01" (1/1) ... [2019-12-07 18:22:01,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:22:01,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:22:01,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:22:01,777 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:22:01,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:22:01,861 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:22:01,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:22:01 WrapperNode [2019-12-07 18:22:01,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:22:01,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:22:01,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:22:01,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:22:01,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:22:01" (1/1) ... [2019-12-07 18:22:01,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:22:01" (1/1) ... [2019-12-07 18:22:01,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:22:01,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:22:01,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:22:01,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:22:01,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:22:01" (1/1) ... [2019-12-07 18:22:01,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:22:01" (1/1) ... [2019-12-07 18:22:01,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:22:01" (1/1) ... [2019-12-07 18:22:01,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:22:01" (1/1) ... [2019-12-07 18:22:01,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:22:01" (1/1) ... [2019-12-07 18:22:01,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:22:01" (1/1) ... [2019-12-07 18:22:01,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:22:01" (1/1) ... [2019-12-07 18:22:01,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:22:01,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:22:01,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:22:01,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:22:01,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:22:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/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 18:22:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 18:22:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 18:22:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:22:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 18:22:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:22:01,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:22:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 18:22:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:22:23,018 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:22:23,018 INFO L287 CfgBuilder]: Removed 18 assume(true) statements. [2019-12-07 18:22:23,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:22:23 BoogieIcfgContainer [2019-12-07 18:22:23,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:22:23,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:22:23,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:22:23,022 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:22:23,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:22:01" (1/3) ... [2019-12-07 18:22:23,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b27b48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:22:23, skipping insertion in model container [2019-12-07 18:22:23,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:22:01" (2/3) ... [2019-12-07 18:22:23,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b27b48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:22:23, skipping insertion in model container [2019-12-07 18:22:23,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:22:23" (3/3) ... [2019-12-07 18:22:23,025 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920a.c [2019-12-07 18:22:23,033 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:22:23,037 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:22:23,045 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:22:23,060 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:22:23,061 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:22:23,061 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:22:23,061 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:22:23,061 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:22:23,061 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:22:23,061 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:22:23,061 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:22:23,070 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-12-07 18:22:23,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 18:22:23,074 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:22:23,075 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:22:23,075 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:22:23,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:22:23,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1394505008, now seen corresponding path program 1 times [2019-12-07 18:22:23,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:22:23,086 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299564189] [2019-12-07 18:22:23,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/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 18:22:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:22:23,210 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 18:22:23,213 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:22:23,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:22:23,222 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:22:23,224 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 18:22:23,225 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299564189] [2019-12-07 18:22:23,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:22:23,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 18:22:23,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655362166] [2019-12-07 18:22:23,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:22:23,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:22:23,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:22:23,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:22:23,239 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-12-07 18:22:23,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:22:23,253 INFO L93 Difference]: Finished difference Result 69 states and 110 transitions. [2019-12-07 18:22:23,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:22:23,254 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-12-07 18:22:23,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:22:23,264 INFO L225 Difference]: With dead ends: 69 [2019-12-07 18:22:23,264 INFO L226 Difference]: Without dead ends: 32 [2019-12-07 18:22:23,267 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 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 18:22:23,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-07 18:22:23,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-07 18:22:23,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-07 18:22:23,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2019-12-07 18:22:23,293 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 43 transitions. Word has length 12 [2019-12-07 18:22:23,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:22:23,293 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 43 transitions. [2019-12-07 18:22:23,293 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:22:23,293 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2019-12-07 18:22:23,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 18:22:23,293 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:22:23,293 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:22:23,494 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 18:22:23,494 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:22:23,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:22:23,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1007782307, now seen corresponding path program 1 times [2019-12-07 18:22:23,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:22:23,496 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910459855] [2019-12-07 18:22:23,496 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/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 18:22:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:22:23,640 INFO L264 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:22:23,641 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:22:23,650 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 18:22:23,651 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:22:23,652 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 18:22:23,653 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [910459855] [2019-12-07 18:22:23,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:22:23,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 18:22:23,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604019155] [2019-12-07 18:22:23,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:22:23,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:22:23,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:22:23,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:22:23,655 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. Second operand 3 states. [2019-12-07 18:22:23,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:22:23,687 INFO L93 Difference]: Finished difference Result 57 states and 78 transitions. [2019-12-07 18:22:23,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:22:23,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-12-07 18:22:23,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:22:23,688 INFO L225 Difference]: With dead ends: 57 [2019-12-07 18:22:23,688 INFO L226 Difference]: Without dead ends: 32 [2019-12-07 18:22:23,689 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:22:23,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-07 18:22:23,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-07 18:22:23,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-07 18:22:23,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2019-12-07 18:22:23,693 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 13 [2019-12-07 18:22:23,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:22:23,693 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions. [2019-12-07 18:22:23,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:22:23,694 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2019-12-07 18:22:23,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 18:22:23,694 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:22:23,694 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 18:22:23,895 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 18:22:23,896 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:22:23,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:22:23,896 INFO L82 PathProgramCache]: Analyzing trace with hash 32951480, now seen corresponding path program 1 times [2019-12-07 18:22:23,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:22:23,898 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105057220] [2019-12-07 18:22:23,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/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 18:22:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:22:24,047 INFO L264 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 18:22:24,049 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:22:24,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:22:24,215 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:22:24,352 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 18:22:24,352 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [105057220] [2019-12-07 18:22:24,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:22:24,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 18:22:24,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145420970] [2019-12-07 18:22:24,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 18:22:24,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:22:24,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 18:22:24,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:22:24,354 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. Second operand 10 states. [2019-12-07 18:22:29,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:22:29,698 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2019-12-07 18:22:29,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:22:29,726 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-12-07 18:22:29,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:22:29,727 INFO L225 Difference]: With dead ends: 42 [2019-12-07 18:22:29,727 INFO L226 Difference]: Without dead ends: 24 [2019-12-07 18:22:29,728 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2019-12-07 18:22:29,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-12-07 18:22:29,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 19. [2019-12-07 18:22:29,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 18:22:29,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-12-07 18:22:29,731 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2019-12-07 18:22:29,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:22:29,732 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-12-07 18:22:29,732 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 18:22:29,732 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-12-07 18:22:29,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 18:22:29,732 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:22:29,732 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 18:22:29,933 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 18:22:29,934 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:22:29,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:22:29,935 INFO L82 PathProgramCache]: Analyzing trace with hash -677236169, now seen corresponding path program 1 times [2019-12-07 18:22:29,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:22:29,936 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072777863] [2019-12-07 18:22:29,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/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 18:22:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:22:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:22:31,834 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 18:22:31,834 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:22:32,035 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 18:22:32,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:22:32 BoogieIcfgContainer [2019-12-07 18:22:32,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:22:32,095 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:22:32,095 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:22:32,095 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:22:32,095 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:22:23" (3/4) ... [2019-12-07 18:22:32,097 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 18:22:32,144 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_84c3d52c-1d80-4992-a023-bd1e60764e6e/bin/uautomizer/witness.graphml [2019-12-07 18:22:32,144 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:22:32,145 INFO L168 Benchmark]: Toolchain (without parser) took 30528.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 952.4 MB in the beginning and 937.9 MB in the end (delta: 14.5 MB). Peak memory consumption was 140.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:22:32,146 INFO L168 Benchmark]: CDTParser took 0.13 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 18:22:32,146 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:22:32,146 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:22:32,146 INFO L168 Benchmark]: Boogie Preprocessor took 27.41 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 18:22:32,147 INFO L168 Benchmark]: RCFGBuilder took 21094.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:22:32,147 INFO L168 Benchmark]: TraceAbstraction took 9074.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 944.8 MB in the end (delta: 123.5 MB). Peak memory consumption was 123.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:22:32,147 INFO L168 Benchmark]: Witness Printer took 49.08 ms. Allocated memory is still 1.2 GB. Free memory was 944.8 MB in the beginning and 937.9 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:22:32,149 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 244.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 21094.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9074.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 944.8 MB in the end (delta: 123.5 MB). Peak memory consumption was 123.5 MB. Max. memory is 11.5 GB. * Witness Printer took 49.08 ms. Allocated memory is still 1.2 GB. Free memory was 944.8 MB in the beginning and 937.9 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 154]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L32-L41] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L43] static const double zero = 0.0; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L146] double x = __VERIFIER_nondet_double(); [L148] EXPR x < 0 && isfinite_double(x) [L127] __int32_t hx; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L129] ieee_double_shape_type gh_u; [L130] gh_u.value = (x) [L131] EXPR gh_u.parts.msw [L131] (hx) = gh_u.parts.msw [L133] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L148] EXPR x < 0 && isfinite_double(x) VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L148] COND TRUE (x < 0 && isfinite_double(x)) [L46] double hfsq, f, s, z, R, w, t1, t2, dk; [L47] __int32_t k, hx, i, j; [L48] __uint32_t lx; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L51] ieee_double_shape_type ew_u; [L52] ew_u.value = (x) [L53] EXPR ew_u.parts.msw [L53] (hx) = ew_u.parts.msw [L54] EXPR ew_u.parts.lsw [L54] (lx) = ew_u.parts.lsw [L57] k = 0 VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L58] COND TRUE hx < 0x00100000 VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L59] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L60] return -two54_log / zero; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L150] double res = __ieee754_log(x); [L137] return x != x; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L153] COND TRUE !isnan_double(res) [L154] __VERIFIER_error() VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Result: UNSAFE, OverallTime: 8.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 107 SDtfs, 75 SDslu, 69 SDs, 0 SdLazy, 20 SolverSat, 2 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 78 ConstructedInterpolants, 17 QuantifiedInterpolants, 4426 SizeOfPredicates, 8 NumberOfNonLiveVariables, 150 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...