./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/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 e20164d66b413fd1e6480d779b873570f1c551b2 ....................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/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 e20164d66b413fd1e6480d779b873570f1c551b2 ................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 15:51:13,632 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:51:13,633 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:51:13,641 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:51:13,642 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:51:13,642 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:51:13,643 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:51:13,644 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:51:13,645 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:51:13,646 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:51:13,647 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:51:13,647 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:51:13,647 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:51:13,648 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:51:13,649 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:51:13,649 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:51:13,650 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:51:13,651 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:51:13,652 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:51:13,653 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:51:13,654 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:51:13,655 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:51:13,656 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:51:13,657 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:51:13,657 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:51:13,657 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:51:13,658 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:51:13,659 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:51:13,659 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:51:13,660 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:51:13,660 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:51:13,660 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:51:13,661 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:51:13,661 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:51:13,661 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:51:13,662 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:51:13,662 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 15:51:13,671 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:51:13,672 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:51:13,672 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:51:13,672 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 15:51:13,673 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:51:13,673 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:51:13,673 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 15:51:13,673 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:51:13,673 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:51:13,674 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:51:13,674 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:51:13,674 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:51:13,674 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:51:13,674 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:51:13,674 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:51:13,674 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:51:13,674 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:51:13,675 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:51:13,675 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:51:13,675 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:51:13,675 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:51:13,675 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:51:13,675 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:51:13,675 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:51:13,676 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:51:13,676 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:51:13,676 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:51:13,676 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 15:51:13,676 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:51:13,676 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:51:13,676 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/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 -> e20164d66b413fd1e6480d779b873570f1c551b2 [2018-11-18 15:51:13,699 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:51:13,708 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:51:13,710 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:51:13,711 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:51:13,711 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:51:13,711 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c [2018-11-18 15:51:13,747 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/uautomizer/data/bb1ba30e7/61f3217ea9f3490597acadbdf603a1ab/FLAG80c33db59 [2018-11-18 15:51:14,081 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:51:14,082 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/sv-benchmarks/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c [2018-11-18 15:51:14,086 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/uautomizer/data/bb1ba30e7/61f3217ea9f3490597acadbdf603a1ab/FLAG80c33db59 [2018-11-18 15:51:14,509 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/uautomizer/data/bb1ba30e7/61f3217ea9f3490597acadbdf603a1ab [2018-11-18 15:51:14,511 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:51:14,512 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 15:51:14,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:51:14,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:51:14,515 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:51:14,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:51:14" (1/1) ... [2018-11-18 15:51:14,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d293ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:14, skipping insertion in model container [2018-11-18 15:51:14,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:51:14" (1/1) ... [2018-11-18 15:51:14,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:51:14,535 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:51:14,633 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:51:14,635 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:51:14,646 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:51:14,653 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:51:14,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:14 WrapperNode [2018-11-18 15:51:14,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:51:14,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:51:14,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:51:14,654 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:51:14,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:14" (1/1) ... [2018-11-18 15:51:14,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:14" (1/1) ... [2018-11-18 15:51:14,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:14" (1/1) ... [2018-11-18 15:51:14,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:14" (1/1) ... [2018-11-18 15:51:14,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:14" (1/1) ... [2018-11-18 15:51:14,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:14" (1/1) ... [2018-11-18 15:51:14,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:14" (1/1) ... [2018-11-18 15:51:14,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:51:14,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:51:14,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:51:14,670 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:51:14,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/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 [2018-11-18 15:51:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:51:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:51:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 15:51:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:51:14,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 15:51:14,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 15:51:14,741 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:51:14,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:51:14,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:51:14,818 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:51:14,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:14 BoogieIcfgContainer [2018-11-18 15:51:14,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:51:14,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:51:14,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:51:14,821 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:51:14,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:51:14" (1/3) ... [2018-11-18 15:51:14,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9036c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:51:14, skipping insertion in model container [2018-11-18 15:51:14,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:14" (2/3) ... [2018-11-18 15:51:14,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9036c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:51:14, skipping insertion in model container [2018-11-18 15:51:14,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:14" (3/3) ... [2018-11-18 15:51:14,824 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_double_exact_true-unreach-call_true-termination.c [2018-11-18 15:51:14,829 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:51:14,833 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:51:14,842 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:51:14,859 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:51:14,860 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:51:14,860 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:51:14,860 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:51:14,860 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:51:14,860 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:51:14,860 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:51:14,860 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:51:14,860 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:51:14,870 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-18 15:51:14,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 15:51:14,874 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:14,874 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:14,876 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:14,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:14,879 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-18 15:51:14,880 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:14,880 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:14,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:14,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:14,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:51:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:51:14,943 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 15:51:14,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:51:14 BoogieIcfgContainer [2018-11-18 15:51:14,956 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:51:14,956 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:51:14,956 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:51:14,956 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:51:14,957 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:14" (3/4) ... [2018-11-18 15:51:14,959 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 15:51:14,959 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:51:14,960 INFO L168 Benchmark]: Toolchain (without parser) took 448.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -162.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:51:14,961 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:51:14,961 INFO L168 Benchmark]: CACSL2BoogieTranslator took 141.77 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:14,962 INFO L168 Benchmark]: Boogie Preprocessor took 15.88 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:14,962 INFO L168 Benchmark]: RCFGBuilder took 148.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -188.6 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:14,963 INFO L168 Benchmark]: TraceAbstraction took 136.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:14,963 INFO L168 Benchmark]: Witness Printer took 3.14 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:14,966 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 141.77 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.88 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 148.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -188.6 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 136.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.14 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticDOUBLEoperation at line 11. Possible FailurePath: [L8] double x, y, z, r; [L10] x = 1e8 [L11] y = x + 1 [L12] z = x - 1 [L13] r = y - z VAL [x=100000000] [L14] CALL __VERIFIER_assert(r == 2.) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L4] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNSAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-5842f4b [2018-11-18 15:51:16,402 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:51:16,403 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:51:16,411 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:51:16,411 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:51:16,411 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:51:16,412 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:51:16,413 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:51:16,414 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:51:16,415 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:51:16,416 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:51:16,416 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:51:16,416 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:51:16,417 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:51:16,418 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:51:16,418 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:51:16,419 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:51:16,420 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:51:16,421 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:51:16,422 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:51:16,423 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:51:16,424 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:51:16,425 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:51:16,426 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:51:16,426 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:51:16,426 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:51:16,427 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:51:16,428 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:51:16,428 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:51:16,429 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:51:16,429 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:51:16,429 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:51:16,430 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:51:16,430 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:51:16,430 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:51:16,431 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:51:16,431 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 15:51:16,441 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:51:16,441 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:51:16,442 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:51:16,442 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 15:51:16,442 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:51:16,443 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:51:16,443 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 15:51:16,443 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:51:16,443 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:51:16,443 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:51:16,443 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:51:16,443 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:51:16,444 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:51:16,444 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:51:16,444 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 15:51:16,444 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 15:51:16,444 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:51:16,444 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:51:16,444 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:51:16,445 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:51:16,445 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:51:16,445 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:51:16,445 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:51:16,445 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:51:16,445 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:51:16,445 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:51:16,446 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:51:16,446 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:51:16,446 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 15:51:16,446 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:51:16,446 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 15:51:16,446 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 15:51:16,446 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/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 -> e20164d66b413fd1e6480d779b873570f1c551b2 [2018-11-18 15:51:16,477 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:51:16,486 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:51:16,489 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:51:16,490 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:51:16,490 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:51:16,491 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c [2018-11-18 15:51:16,536 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/uautomizer/data/3690b37b1/64b15f51b33c4a0db9c4ca3d0b8990e3/FLAG68e6fc27a [2018-11-18 15:51:16,836 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:51:16,836 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/sv-benchmarks/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c [2018-11-18 15:51:16,840 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/uautomizer/data/3690b37b1/64b15f51b33c4a0db9c4ca3d0b8990e3/FLAG68e6fc27a [2018-11-18 15:51:16,848 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/uautomizer/data/3690b37b1/64b15f51b33c4a0db9c4ca3d0b8990e3 [2018-11-18 15:51:16,850 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:51:16,851 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 15:51:16,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:51:16,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:51:16,854 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:51:16,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:51:16" (1/1) ... [2018-11-18 15:51:16,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@119b503f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:16, skipping insertion in model container [2018-11-18 15:51:16,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:51:16" (1/1) ... [2018-11-18 15:51:16,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:51:16,877 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:51:16,996 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:51:17,001 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:51:17,010 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:51:17,019 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:51:17,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:17 WrapperNode [2018-11-18 15:51:17,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:51:17,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:51:17,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:51:17,020 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:51:17,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:17" (1/1) ... [2018-11-18 15:51:17,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:17" (1/1) ... [2018-11-18 15:51:17,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:17" (1/1) ... [2018-11-18 15:51:17,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:17" (1/1) ... [2018-11-18 15:51:17,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:17" (1/1) ... [2018-11-18 15:51:17,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:17" (1/1) ... [2018-11-18 15:51:17,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:17" (1/1) ... [2018-11-18 15:51:17,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:51:17,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:51:17,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:51:17,040 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:51:17,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/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 [2018-11-18 15:51:17,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:51:17,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:51:17,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 15:51:17,129 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:51:17,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 15:51:17,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 15:51:17,130 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:51:17,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:51:17,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:51:17,283 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:51:17,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:17 BoogieIcfgContainer [2018-11-18 15:51:17,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:51:17,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:51:17,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:51:17,287 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:51:17,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:51:16" (1/3) ... [2018-11-18 15:51:17,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bef137d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:51:17, skipping insertion in model container [2018-11-18 15:51:17,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:17" (2/3) ... [2018-11-18 15:51:17,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bef137d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:51:17, skipping insertion in model container [2018-11-18 15:51:17,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:17" (3/3) ... [2018-11-18 15:51:17,290 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_double_exact_true-unreach-call_true-termination.c [2018-11-18 15:51:17,295 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:51:17,299 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:51:17,308 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:51:17,327 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:51:17,327 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:51:17,328 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:51:17,328 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:51:17,328 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:51:17,328 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:51:17,328 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:51:17,328 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:51:17,328 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:51:17,342 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-18 15:51:17,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 15:51:17,346 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:17,347 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:17,348 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:17,352 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:17,352 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-18 15:51:17,354 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:51:17,355 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/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 [2018-11-18 15:51:17,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:17,545 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:51:17,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:17,616 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:51:17,631 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:17,631 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:51:17,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:51:17,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:51:17,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:51:17,648 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2018-11-18 15:51:17,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:17,696 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-11-18 15:51:17,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 15:51:17,697 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-18 15:51:17,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:17,703 INFO L225 Difference]: With dead ends: 24 [2018-11-18 15:51:17,703 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:51:17,706 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:51:17,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:51:17,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:51:17,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:51:17,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:51:17,724 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-18 15:51:17,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:17,724 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:51:17,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:51:17,724 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:51:17,724 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:51:17,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 15:51:17,759 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 15:51:17,759 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:51:17,759 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:51:17,760 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 15:51:17,760 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:51:17,760 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:51:17,760 INFO L421 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (= (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 100000000.0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32)))) (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 .cse1) (fp.sub roundNearestTiesToEven .cse0 .cse1))) main_~r~0) [2018-11-18 15:51:17,760 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 6 16) the Hoare annotation is: true [2018-11-18 15:51:17,760 INFO L425 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-18 15:51:17,761 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 6 16) no Hoare annotation was computed. [2018-11-18 15:51:17,761 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 6 16) no Hoare annotation was computed. [2018-11-18 15:51:17,761 INFO L425 ceAbstractionStarter]: For program point L4-3(line 4) no Hoare annotation was computed. [2018-11-18 15:51:17,761 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 4) the Hoare annotation is: true [2018-11-18 15:51:17,761 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 4) no Hoare annotation was computed. [2018-11-18 15:51:17,761 INFO L425 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-11-18 15:51:17,761 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-11-18 15:51:17,761 INFO L425 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2018-11-18 15:51:17,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:51:17 BoogieIcfgContainer [2018-11-18 15:51:17,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:51:17,764 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:51:17,764 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:51:17,764 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:51:17,765 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:17" (3/4) ... [2018-11-18 15:51:17,768 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:51:17,774 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 15:51:17,774 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 15:51:17,774 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-18 15:51:17,777 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 15:51:17,777 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 15:51:17,778 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 15:51:17,778 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 15:51:17,799 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2cae0c28-8ed0-45ca-8935-d77e164757e3/bin-2019/uautomizer/witness.graphml [2018-11-18 15:51:17,800 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:51:17,800 INFO L168 Benchmark]: Toolchain (without parser) took 949.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:17,802 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:51:17,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 167.84 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 937.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:17,802 INFO L168 Benchmark]: Boogie Preprocessor took 20.14 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:17,803 INFO L168 Benchmark]: RCFGBuilder took 243.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 931.8 MB in the beginning and 1.1 GB in the end (delta: -213.1 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:17,803 INFO L168 Benchmark]: TraceAbstraction took 479.56 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: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:17,804 INFO L168 Benchmark]: Witness Printer took 35.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:17,806 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 167.84 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 937.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.14 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 243.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 931.8 MB in the beginning and 1.1 GB in the end (delta: -213.1 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 479.56 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: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. * Witness Printer took 35.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 7 SDslu, 27 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 25 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 280 SizeOfPredicates, 5 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...