./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0682a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0682a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/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 fcf534df2acf49cd98974d7f01989073db823dea ........................................................................................................................................................................................................................................................................................................................................................................................... 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_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0682a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/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 fcf534df2acf49cd98974d7f01989073db823dea .............................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 22:43:24,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:43:24,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:43:24,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:43:24,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:43:24,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:43:24,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:43:24,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:43:24,611 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:43:24,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:43:24,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:43:24,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:43:24,619 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:43:24,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:43:24,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:43:24,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:43:24,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:43:24,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:43:24,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:43:24,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:43:24,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:43:24,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:43:24,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:43:24,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:43:24,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:43:24,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:43:24,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:43:24,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:43:24,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:43:24,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:43:24,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:43:24,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:43:24,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:43:24,645 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:43:24,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:43:24,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:43:24,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:43:24,648 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:43:24,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:43:24,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:43:24,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:43:24,651 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 22:43:24,675 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:43:24,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:43:24,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:43:24,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:43:24,687 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:43:24,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:43:24,687 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:43:24,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:43:24,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:43:24,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:43:24,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:43:24,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:43:24,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:43:24,689 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:43:24,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:43:24,690 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:43:24,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:43:24,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:43:24,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:43:24,691 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:43:24,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:43:24,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:43:24,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:43:24,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:43:24,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:43:24,693 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:43:24,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:43:24,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:43:24,694 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_64cbfb62-7f05-4e6f-95f4-3a802b147595/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 -> fcf534df2acf49cd98974d7f01989073db823dea [2019-11-15 22:43:24,727 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:43:24,746 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:43:24,750 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:43:24,752 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:43:24,752 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:43:24,753 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0682a.c [2019-11-15 22:43:24,811 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/data/93a5c788f/b4437a08077d447694e6e45e35f35534/FLAGefb4ac0ae [2019-11-15 22:43:25,179 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:43:25,180 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/sv-benchmarks/c/float-newlib/double_req_bl_0682a.c [2019-11-15 22:43:25,188 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/data/93a5c788f/b4437a08077d447694e6e45e35f35534/FLAGefb4ac0ae [2019-11-15 22:43:25,533 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/data/93a5c788f/b4437a08077d447694e6e45e35f35534 [2019-11-15 22:43:25,535 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:43:25,536 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:43:25,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:43:25,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:43:25,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:43:25,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:43:25" (1/1) ... [2019-11-15 22:43:25,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e2c5c53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:25, skipping insertion in model container [2019-11-15 22:43:25,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:43:25" (1/1) ... [2019-11-15 22:43:25,551 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:43:25,588 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:43:25,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:43:25,952 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:43:26,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:43:26,045 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:43:26,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:26 WrapperNode [2019-11-15 22:43:26,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:43:26,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:43:26,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:43:26,047 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:43:26,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:26" (1/1) ... [2019-11-15 22:43:26,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:26" (1/1) ... [2019-11-15 22:43:26,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:43:26,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:43:26,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:43:26,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:43:26,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:26" (1/1) ... [2019-11-15 22:43:26,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:26" (1/1) ... [2019-11-15 22:43:26,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:26" (1/1) ... [2019-11-15 22:43:26,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:26" (1/1) ... [2019-11-15 22:43:26,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:26" (1/1) ... [2019-11-15 22:43:26,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:26" (1/1) ... [2019-11-15 22:43:26,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:26" (1/1) ... [2019-11-15 22:43:26,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:43:26,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:43:26,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:43:26,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:43:26,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:43:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:43:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 22:43:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 22:43:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 22:43:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:43:26,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:43:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 22:43:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-15 22:43:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:43:27,163 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:43:27,163 INFO L284 CfgBuilder]: Removed 52 assume(true) statements. [2019-11-15 22:43:27,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:43:27 BoogieIcfgContainer [2019-11-15 22:43:27,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:43:27,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:43:27,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:43:27,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:43:27,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:43:25" (1/3) ... [2019-11-15 22:43:27,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331c3e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:43:27, skipping insertion in model container [2019-11-15 22:43:27,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:26" (2/3) ... [2019-11-15 22:43:27,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331c3e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:43:27, skipping insertion in model container [2019-11-15 22:43:27,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:43:27" (3/3) ... [2019-11-15 22:43:27,173 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0682a.c [2019-11-15 22:43:27,183 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:43:27,193 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:43:27,205 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:43:27,231 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:43:27,231 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:43:27,232 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:43:27,232 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:43:27,232 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:43:27,232 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:43:27,232 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:43:27,232 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:43:27,255 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states. [2019-11-15 22:43:27,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 22:43:27,262 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:43:27,263 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:43:27,265 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:43:27,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:43:27,269 INFO L82 PathProgramCache]: Analyzing trace with hash -617567418, now seen corresponding path program 1 times [2019-11-15 22:43:27,275 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:43:27,276 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992904418] [2019-11-15 22:43:27,276 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:43:27,276 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:43:27,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:43:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:43:27,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:43:27,397 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992904418] [2019-11-15 22:43:27,398 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:43:27,398 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 22:43:27,398 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917910732] [2019-11-15 22:43:27,402 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 22:43:27,402 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:43:27,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 22:43:27,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:43:27,417 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 2 states. [2019-11-15 22:43:27,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:43:27,446 INFO L93 Difference]: Finished difference Result 246 states and 412 transitions. [2019-11-15 22:43:27,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:43:27,448 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-11-15 22:43:27,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:43:27,459 INFO L225 Difference]: With dead ends: 246 [2019-11-15 22:43:27,459 INFO L226 Difference]: Without dead ends: 120 [2019-11-15 22:43:27,463 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:43:27,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-11-15 22:43:27,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-11-15 22:43:27,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-11-15 22:43:27,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 169 transitions. [2019-11-15 22:43:27,501 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 169 transitions. Word has length 15 [2019-11-15 22:43:27,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:43:27,501 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 169 transitions. [2019-11-15 22:43:27,501 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 22:43:27,501 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 169 transitions. [2019-11-15 22:43:27,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-15 22:43:27,502 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:43:27,502 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:43:27,503 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:43:27,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:43:27,503 INFO L82 PathProgramCache]: Analyzing trace with hash -397782484, now seen corresponding path program 1 times [2019-11-15 22:43:27,503 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:43:27,504 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673651775] [2019-11-15 22:43:27,504 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:43:27,504 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:43:27,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:43:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:43:27,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:43:27,613 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673651775] [2019-11-15 22:43:27,614 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:43:27,614 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 22:43:27,614 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738241560] [2019-11-15 22:43:27,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 22:43:27,615 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:43:27,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 22:43:27,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:43:27,616 INFO L87 Difference]: Start difference. First operand 120 states and 169 transitions. Second operand 3 states. [2019-11-15 22:43:27,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:43:27,647 INFO L93 Difference]: Finished difference Result 229 states and 326 transitions. [2019-11-15 22:43:27,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:43:27,647 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-11-15 22:43:27,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:43:27,649 INFO L225 Difference]: With dead ends: 229 [2019-11-15 22:43:27,649 INFO L226 Difference]: Without dead ends: 120 [2019-11-15 22:43:27,651 INFO L600 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 [2019-11-15 22:43:27,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-11-15 22:43:27,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-11-15 22:43:27,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-11-15 22:43:27,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 168 transitions. [2019-11-15 22:43:27,662 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 168 transitions. Word has length 18 [2019-11-15 22:43:27,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:43:27,662 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 168 transitions. [2019-11-15 22:43:27,663 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 22:43:27,663 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 168 transitions. [2019-11-15 22:43:27,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-15 22:43:27,664 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:43:27,664 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:43:27,664 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:43:27,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:43:27,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1006577033, now seen corresponding path program 1 times [2019-11-15 22:43:27,665 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:43:27,665 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983776428] [2019-11-15 22:43:27,665 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:43:27,665 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:43:27,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:43:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:43:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:43:28,366 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:43:28,369 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 22:43:28,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:43:28 BoogieIcfgContainer [2019-11-15 22:43:28,451 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:43:28,452 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:43:28,452 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:43:28,452 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:43:28,453 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:43:27" (3/4) ... [2019-11-15 22:43:28,459 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 22:43:28,459 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:43:28,462 INFO L168 Benchmark]: Toolchain (without parser) took 2925.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.2 MB). Free memory was 944.6 MB in the beginning and 970.5 MB in the end (delta: -25.9 MB). Peak memory consumption was 161.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:43:28,463 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:43:28,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 509.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.2 MB). Free memory was 939.3 MB in the beginning and 1.2 GB in the end (delta: -231.6 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:43:28,472 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:43:28,473 INFO L168 Benchmark]: Boogie Preprocessor took 126.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2019-11-15 22:43:28,474 INFO L168 Benchmark]: RCFGBuilder took 900.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 67.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:43:28,475 INFO L168 Benchmark]: TraceAbstraction took 1284.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 970.5 MB in the end (delta: 125.1 MB). Peak memory consumption was 125.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:43:28,476 INFO L168 Benchmark]: Witness Printer took 8.09 ms. Allocated memory is still 1.2 GB. Free memory is still 970.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:43:28,482 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 509.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.2 MB). Free memory was 939.3 MB in the beginning and 1.2 GB in the end (delta: -231.6 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 93.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 126.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 900.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 67.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1284.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 970.5 MB in the end (delta: 125.1 MB). Peak memory consumption was 125.1 MB. Max. memory is 11.5 GB. * Witness Printer took 8.09 ms. Allocated memory is still 1.2 GB. Free memory is still 970.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 285]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 162, overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryDOUBLEComparisonOperation at line 284. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L276] double x = -1.0 / 0.0; [L277] double y = __VERIFIER_nondet_double(); [L246] __int32_t hx, lx; VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L248] ieee_double_shape_type ew_u; [L249] ew_u.value = (x) [L250] EXPR ew_u.parts.msw [L250] (hx) = ew_u.parts.msw [L251] EXPR ew_u.parts.lsw [L251] (lx) = ew_u.parts.lsw [L253] hx &= 0x7fffffff [L254] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L255] hx = 0x7ff00000 - hx [L256] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L279] EXPR isinf_double(x) && isfinite_double(y) [L260] __int32_t hx; VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L262] ieee_double_shape_type gh_u; [L263] gh_u.value = (x) [L264] EXPR gh_u.parts.msw [L264] (hx) = gh_u.parts.msw [L266] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L279] EXPR isinf_double(x) && isfinite_double(y) VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L279] COND TRUE isinf_double(x) && isfinite_double(y) && y < 0.0 [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L281] double res = __ieee754_atan2(y, x); [L284] COND TRUE res != -pi VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L285] __VERIFIER_error() VAL [aT_atan={1:0}, atanhi_atan={-5:0}, atanlo_atan={-10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 124 locations, 1 error locations. Result: UNSAFE, OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 343 SDtfs, 0 SDslu, 163 SDs, 0 SdLazy, 5 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=124occurred 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, 0.4s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 502 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 0.1.24-cad4683 [2019-11-15 22:43:30,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:43:30,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:43:30,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:43:30,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:43:30,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:43:30,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:43:30,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:43:30,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:43:30,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:43:30,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:43:30,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:43:30,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:43:30,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:43:30,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:43:30,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:43:30,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:43:30,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:43:30,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:43:30,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:43:30,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:43:30,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:43:30,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:43:30,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:43:30,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:43:30,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:43:30,658 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:43:30,659 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:43:30,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:43:30,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:43:30,661 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:43:30,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:43:30,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:43:30,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:43:30,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:43:30,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:43:30,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:43:30,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:43:30,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:43:30,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:43:30,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:43:30,668 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 22:43:30,681 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:43:30,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:43:30,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:43:30,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:43:30,683 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:43:30,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:43:30,683 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:43:30,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:43:30,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:43:30,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:43:30,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:43:30,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:43:30,685 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 22:43:30,685 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 22:43:30,685 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:43:30,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:43:30,686 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:43:30,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:43:30,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:43:30,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:43:30,687 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:43:30,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:43:30,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:43:30,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:43:30,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:43:30,688 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:43:30,688 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 22:43:30,688 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 22:43:30,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:43:30,689 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 22:43:30,689 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_64cbfb62-7f05-4e6f-95f4-3a802b147595/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 -> fcf534df2acf49cd98974d7f01989073db823dea [2019-11-15 22:43:30,719 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:43:30,729 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:43:30,732 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:43:30,734 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:43:30,734 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:43:30,735 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0682a.c [2019-11-15 22:43:30,788 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/data/a046fbb9b/836b8d6d50254cc1b909e891bccd74ef/FLAGb814d958e [2019-11-15 22:43:31,237 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:43:31,238 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/sv-benchmarks/c/float-newlib/double_req_bl_0682a.c [2019-11-15 22:43:31,246 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/data/a046fbb9b/836b8d6d50254cc1b909e891bccd74ef/FLAGb814d958e [2019-11-15 22:43:31,257 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/data/a046fbb9b/836b8d6d50254cc1b909e891bccd74ef [2019-11-15 22:43:31,259 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:43:31,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:43:31,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:43:31,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:43:31,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:43:31,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:43:31" (1/1) ... [2019-11-15 22:43:31,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f23fcad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:31, skipping insertion in model container [2019-11-15 22:43:31,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:43:31" (1/1) ... [2019-11-15 22:43:31,275 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:43:31,301 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:43:31,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:43:31,592 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:43:31,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:43:31,729 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:43:31,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:31 WrapperNode [2019-11-15 22:43:31,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:43:31,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:43:31,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:43:31,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:43:31,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:31" (1/1) ... [2019-11-15 22:43:31,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:31" (1/1) ... [2019-11-15 22:43:31,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:43:31,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:43:31,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:43:31,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:43:31,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:31" (1/1) ... [2019-11-15 22:43:31,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:31" (1/1) ... [2019-11-15 22:43:31,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:31" (1/1) ... [2019-11-15 22:43:31,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:31" (1/1) ... [2019-11-15 22:43:31,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:31" (1/1) ... [2019-11-15 22:43:31,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:31" (1/1) ... [2019-11-15 22:43:31,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:31" (1/1) ... [2019-11-15 22:43:31,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:43:31,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:43:31,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:43:31,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:43:31,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:43:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-15 22:43:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-15 22:43:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:43:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-15 22:43:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 22:43:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:43:31,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:43:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 22:43:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:44:10,398 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:44:10,399 INFO L284 CfgBuilder]: Removed 52 assume(true) statements. [2019-11-15 22:44:10,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:44:10 BoogieIcfgContainer [2019-11-15 22:44:10,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:44:10,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:44:10,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:44:10,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:44:10,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:43:31" (1/3) ... [2019-11-15 22:44:10,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab01f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:44:10, skipping insertion in model container [2019-11-15 22:44:10,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:43:31" (2/3) ... [2019-11-15 22:44:10,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab01f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:44:10, skipping insertion in model container [2019-11-15 22:44:10,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:44:10" (3/3) ... [2019-11-15 22:44:10,410 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0682a.c [2019-11-15 22:44:10,421 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:44:10,429 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:44:10,442 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:44:10,473 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:44:10,473 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:44:10,473 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:44:10,474 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:44:10,474 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:44:10,474 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:44:10,475 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:44:10,475 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:44:10,496 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states. [2019-11-15 22:44:10,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 22:44:10,503 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:44:10,504 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:44:10,506 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:44:10,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:44:10,512 INFO L82 PathProgramCache]: Analyzing trace with hash -617567418, now seen corresponding path program 1 times [2019-11-15 22:44:10,524 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:44:10,525 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [471034806] [2019-11-15 22:44:10,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-15 22:44:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:44:10,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 22:44:10,923 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:44:10,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:44:10,943 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:44:10,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:44:10,952 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [471034806] [2019-11-15 22:44:10,953 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:44:10,953 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 22:44:10,954 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877415292] [2019-11-15 22:44:10,959 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 22:44:10,959 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:44:10,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 22:44:10,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:44:10,977 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 2 states. [2019-11-15 22:44:11,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:44:11,035 INFO L93 Difference]: Finished difference Result 246 states and 412 transitions. [2019-11-15 22:44:11,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:44:11,037 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-11-15 22:44:11,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:44:11,056 INFO L225 Difference]: With dead ends: 246 [2019-11-15 22:44:11,057 INFO L226 Difference]: Without dead ends: 120 [2019-11-15 22:44:11,061 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:44:11,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-11-15 22:44:11,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-11-15 22:44:11,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-11-15 22:44:11,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 169 transitions. [2019-11-15 22:44:11,118 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 169 transitions. Word has length 15 [2019-11-15 22:44:11,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:44:11,119 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 169 transitions. [2019-11-15 22:44:11,119 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 22:44:11,119 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 169 transitions. [2019-11-15 22:44:11,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-15 22:44:11,121 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:44:11,121 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:44:11,347 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 22:44:11,347 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:44:11,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:44:11,348 INFO L82 PathProgramCache]: Analyzing trace with hash -397782484, now seen corresponding path program 1 times [2019-11-15 22:44:11,349 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:44:11,349 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973574434] [2019-11-15 22:44:11,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-15 22:44:11,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:44:11,794 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:44:11,796 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:44:11,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:44:11,813 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:44:11,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:44:11,816 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973574434] [2019-11-15 22:44:11,816 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:44:11,817 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-15 22:44:11,817 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855219350] [2019-11-15 22:44:11,822 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 22:44:11,823 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:44:11,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 22:44:11,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:44:11,825 INFO L87 Difference]: Start difference. First operand 120 states and 169 transitions. Second operand 3 states. [2019-11-15 22:44:11,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:44:11,861 INFO L93 Difference]: Finished difference Result 229 states and 326 transitions. [2019-11-15 22:44:11,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:44:11,862 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-11-15 22:44:11,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:44:11,864 INFO L225 Difference]: With dead ends: 229 [2019-11-15 22:44:11,864 INFO L226 Difference]: Without dead ends: 120 [2019-11-15 22:44:11,866 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:44:11,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-11-15 22:44:11,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-11-15 22:44:11,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-11-15 22:44:11,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 168 transitions. [2019-11-15 22:44:11,875 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 168 transitions. Word has length 18 [2019-11-15 22:44:11,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:44:11,875 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 168 transitions. [2019-11-15 22:44:11,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 22:44:11,876 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 168 transitions. [2019-11-15 22:44:11,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-15 22:44:11,877 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:44:11,877 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:44:12,077 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 22:44:12,078 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:44:12,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:44:12,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1006577033, now seen corresponding path program 1 times [2019-11-15 22:44:12,079 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:44:12,080 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1390922804] [2019-11-15 22:44:12,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64cbfb62-7f05-4e6f-95f4-3a802b147595/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-15 22:44:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:44:12,737 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-15 22:44:12,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:44:12,920 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 22:44:13,175 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-15 22:44:13,191 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 47 [2019-11-15 22:44:13,215 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2019-11-15 22:44:13,216 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 22:44:13,238 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 22:44:13,252 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 22:44:13,253 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 9 [2019-11-15 22:44:13,253 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-15 22:44:13,257 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 22:44:13,257 INFO L496 ElimStorePlain]: Start of recursive call 2: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 22:44:13,305 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 22:44:13,306 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-15 22:44:13,307 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:93, output treesize:52 [2019-11-15 22:44:13,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:44:13,962 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:44:14,127 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 22:44:14,435 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 22:44:14,646 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 22:44:14,647 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:195) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.downgradeDimensionsIfNecessary(ArrayOccurrenceAnalysis.java:171) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:132) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:335) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-15 22:44:14,652 INFO L168 Benchmark]: Toolchain (without parser) took 43391.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 952.4 MB in the beginning and 860.3 MB in the end (delta: 92.0 MB). Peak memory consumption was 224.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:44:14,653 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:44:14,653 INFO L168 Benchmark]: CACSL2BoogieTranslator took 468.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -168.8 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:44:14,654 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.65 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: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:44:14,655 INFO L168 Benchmark]: Boogie Preprocessor took 94.54 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:44:14,655 INFO L168 Benchmark]: RCFGBuilder took 38477.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.8 MB). Peak memory consumption was 80.8 MB. Max. memory is 11.5 GB. [2019-11-15 22:44:14,656 INFO L168 Benchmark]: TraceAbstraction took 4248.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 860.3 MB in the end (delta: 165.0 MB). Peak memory consumption was 165.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:44:14,659 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 468.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -168.8 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 97.65 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: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 94.54 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 38477.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.8 MB). Peak memory consumption was 80.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4248.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 860.3 MB in the end (delta: 165.0 MB). Peak memory consumption was 165.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...