./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/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 e96842f9a03cb3c7d57e4720c2380ee270a08502 .............................................................................................................................................................................................................................................. 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_f3c0355e-7662-4157-9001-80bdeabd9745/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/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 e96842f9a03cb3c7d57e4720c2380ee270a08502 ..................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:09:26,964 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:09:26,965 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:09:26,972 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:09:26,972 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:09:26,973 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:09:26,974 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:09:26,975 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:09:26,976 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:09:26,976 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:09:26,977 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:09:26,977 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:09:26,978 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:09:26,979 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:09:26,979 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:09:26,980 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:09:26,981 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:09:26,982 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:09:26,983 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:09:26,984 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:09:26,985 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:09:26,986 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:09:26,988 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:09:26,988 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:09:26,988 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:09:26,989 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:09:26,989 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:09:26,990 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:09:26,990 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:09:26,991 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:09:26,991 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:09:26,992 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:09:26,992 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:09:26,992 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:09:26,993 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:09:26,993 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:09:26,993 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 12:09:27,004 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:09:27,004 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:09:27,005 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:09:27,005 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:09:27,005 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:09:27,006 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:09:27,006 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:09:27,006 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:09:27,006 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:09:27,006 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:09:27,006 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:09:27,007 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:09:27,007 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:09:27,007 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:09:27,007 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:09:27,007 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:09:27,007 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:09:27,007 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:09:27,008 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:09:27,008 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:09:27,008 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:09:27,008 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:09:27,008 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:09:27,008 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:09:27,009 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:09:27,009 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:09:27,009 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:09:27,009 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:09:27,009 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:09:27,009 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:09:27,010 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_f3c0355e-7662-4157-9001-80bdeabd9745/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 -> e96842f9a03cb3c7d57e4720c2380ee270a08502 [2018-11-28 12:09:27,034 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:09:27,043 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:09:27,045 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:09:27,047 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:09:27,047 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:09:27,047 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c [2018-11-28 12:09:27,092 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/bin-2019/uautomizer/data/eb77f878c/5a46f658409847b39a3f13e28ed6c1cb/FLAGb0e71e92d [2018-11-28 12:09:27,435 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:09:27,436 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/sv-benchmarks/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c [2018-11-28 12:09:27,441 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/bin-2019/uautomizer/data/eb77f878c/5a46f658409847b39a3f13e28ed6c1cb/FLAGb0e71e92d [2018-11-28 12:09:27,454 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/bin-2019/uautomizer/data/eb77f878c/5a46f658409847b39a3f13e28ed6c1cb [2018-11-28 12:09:27,456 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:09:27,457 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:09:27,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:09:27,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:09:27,461 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:09:27,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:09:27" (1/1) ... [2018-11-28 12:09:27,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5274901a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:27, skipping insertion in model container [2018-11-28 12:09:27,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:09:27" (1/1) ... [2018-11-28 12:09:27,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:09:27,482 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:09:27,588 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:09:27,591 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:09:27,599 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:09:27,607 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:09:27,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:27 WrapperNode [2018-11-28 12:09:27,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:09:27,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:09:27,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:09:27,608 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:09:27,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:27" (1/1) ... [2018-11-28 12:09:27,616 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:27" (1/1) ... [2018-11-28 12:09:27,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:09:27,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:09:27,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:09:27,621 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:09:27,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:27" (1/1) ... [2018-11-28 12:09:27,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:27" (1/1) ... [2018-11-28 12:09:27,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:27" (1/1) ... [2018-11-28 12:09:27,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:27" (1/1) ... [2018-11-28 12:09:27,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:27" (1/1) ... [2018-11-28 12:09:27,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:27" (1/1) ... [2018-11-28 12:09:27,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:27" (1/1) ... [2018-11-28 12:09:27,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:09:27,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:09:27,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:09:27,632 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:09:27,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/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 [2018-11-28 12:09:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:09:27,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:09:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:09:27,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:09:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:09:27,699 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:09:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 12:09:27,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 12:09:27,776 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:09:27,777 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 12:09:27,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:09:27 BoogieIcfgContainer [2018-11-28 12:09:27,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:09:27,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:09:27,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:09:27,779 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:09:27,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:09:27" (1/3) ... [2018-11-28 12:09:27,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96c54e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:09:27, skipping insertion in model container [2018-11-28 12:09:27,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:27" (2/3) ... [2018-11-28 12:09:27,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96c54e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:09:27, skipping insertion in model container [2018-11-28 12:09:27,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:09:27" (3/3) ... [2018-11-28 12:09:27,782 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_float_exact_true-unreach-call_true-termination.c [2018-11-28 12:09:27,787 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:09:27,792 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:09:27,803 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:09:27,822 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:09:27,823 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:09:27,823 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:09:27,823 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:09:27,823 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:09:27,823 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:09:27,824 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:09:27,824 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:09:27,824 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:09:27,835 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-28 12:09:27,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 12:09:27,840 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:09:27,840 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:09:27,842 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:09:27,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:09:27,845 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-28 12:09:27,847 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:09:27,847 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:09:27,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:09:27,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:09:27,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:09:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:09:27,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:09:27,914 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:09:27,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:09:27 BoogieIcfgContainer [2018-11-28 12:09:27,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:09:27,931 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:09:27,931 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:09:27,931 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:09:27,931 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:09:27" (3/4) ... [2018-11-28 12:09:27,934 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:09:27,934 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:09:27,934 INFO L168 Benchmark]: Toolchain (without parser) took 478.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 958.7 MB in the beginning and 1.1 GB in the end (delta: -151.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:09:27,936 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:09:27,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.12 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:09:27,937 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.85 ms. Allocated memory is still 1.0 GB. Free memory is still 947.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:09:27,937 INFO L168 Benchmark]: Boogie Preprocessor took 10.77 ms. Allocated memory is still 1.0 GB. Free memory is still 947.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:09:27,938 INFO L168 Benchmark]: RCFGBuilder took 145.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:09:27,938 INFO L168 Benchmark]: TraceAbstraction took 153.13 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:09:27,939 INFO L168 Benchmark]: Witness Printer took 2.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:09:27,941 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 150.12 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.85 ms. Allocated memory is still 1.0 GB. Free memory is still 947.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.77 ms. Allocated memory is still 1.0 GB. Free memory is still 947.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 145.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 153.13 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 11. Possible FailurePath: [L8] float x, y, z, r; [L10] x = 1e7f [L11] y = x + 1.f [L12] z = x - 1.f [L13] r = y - z VAL [x=10000000] [L14] CALL __VERIFIER_assert(r == 2.f) 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, 0.1s 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 0.1.23-0cd3be1 [2018-11-28 12:09:29,404 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:09:29,406 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:09:29,414 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:09:29,415 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:09:29,415 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:09:29,416 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:09:29,417 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:09:29,418 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:09:29,419 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:09:29,420 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:09:29,420 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:09:29,420 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:09:29,421 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:09:29,422 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:09:29,422 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:09:29,423 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:09:29,424 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:09:29,426 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:09:29,427 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:09:29,427 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:09:29,428 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:09:29,430 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:09:29,430 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:09:29,430 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:09:29,431 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:09:29,431 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:09:29,432 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:09:29,432 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:09:29,433 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:09:29,433 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:09:29,434 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:09:29,434 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:09:29,434 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:09:29,435 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:09:29,435 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:09:29,435 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 12:09:29,445 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:09:29,446 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:09:29,446 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:09:29,446 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:09:29,447 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:09:29,447 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:09:29,447 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:09:29,447 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:09:29,448 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:09:29,448 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:09:29,448 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:09:29,448 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:09:29,448 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:09:29,448 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:09:29,448 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 12:09:29,449 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 12:09:29,449 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:09:29,449 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:09:29,449 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:09:29,449 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:09:29,449 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:09:29,449 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:09:29,450 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:09:29,450 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:09:29,450 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:09:29,450 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:09:29,450 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:09:29,450 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:09:29,450 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 12:09:29,451 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:09:29,451 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 12:09:29,451 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 12:09:29,451 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_f3c0355e-7662-4157-9001-80bdeabd9745/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 -> e96842f9a03cb3c7d57e4720c2380ee270a08502 [2018-11-28 12:09:29,477 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:09:29,487 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:09:29,490 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:09:29,492 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:09:29,492 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:09:29,492 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c [2018-11-28 12:09:29,540 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/bin-2019/uautomizer/data/ffdf9bc71/a797729bfe464025986a1bf65aa1b20e/FLAG1829c4895 [2018-11-28 12:09:29,933 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:09:29,933 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/sv-benchmarks/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c [2018-11-28 12:09:29,937 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/bin-2019/uautomizer/data/ffdf9bc71/a797729bfe464025986a1bf65aa1b20e/FLAG1829c4895 [2018-11-28 12:09:29,946 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/bin-2019/uautomizer/data/ffdf9bc71/a797729bfe464025986a1bf65aa1b20e [2018-11-28 12:09:29,948 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:09:29,949 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:09:29,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:09:29,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:09:29,953 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:09:29,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:09:29" (1/1) ... [2018-11-28 12:09:29,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@500de133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:29, skipping insertion in model container [2018-11-28 12:09:29,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:09:29" (1/1) ... [2018-11-28 12:09:29,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:09:29,974 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:09:30,071 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:09:30,078 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:09:30,089 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:09:30,099 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:09:30,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:30 WrapperNode [2018-11-28 12:09:30,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:09:30,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:09:30,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:09:30,100 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:09:30,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:30" (1/1) ... [2018-11-28 12:09:30,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:30" (1/1) ... [2018-11-28 12:09:30,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:09:30,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:09:30,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:09:30,114 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:09:30,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:30" (1/1) ... [2018-11-28 12:09:30,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:30" (1/1) ... [2018-11-28 12:09:30,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:30" (1/1) ... [2018-11-28 12:09:30,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:30" (1/1) ... [2018-11-28 12:09:30,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:30" (1/1) ... [2018-11-28 12:09:30,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:30" (1/1) ... [2018-11-28 12:09:30,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:30" (1/1) ... [2018-11-28 12:09:30,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:09:30,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:09:30,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:09:30,132 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:09:30,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/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 [2018-11-28 12:09:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:09:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:09:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:09:30,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:09:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:09:30,215 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:09:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 12:09:30,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 12:09:30,335 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:09:30,335 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 12:09:30,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:09:30 BoogieIcfgContainer [2018-11-28 12:09:30,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:09:30,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:09:30,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:09:30,339 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:09:30,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:09:29" (1/3) ... [2018-11-28 12:09:30,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8ce660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:09:30, skipping insertion in model container [2018-11-28 12:09:30,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:09:30" (2/3) ... [2018-11-28 12:09:30,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8ce660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:09:30, skipping insertion in model container [2018-11-28 12:09:30,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:09:30" (3/3) ... [2018-11-28 12:09:30,342 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_float_exact_true-unreach-call_true-termination.c [2018-11-28 12:09:30,349 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:09:30,354 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:09:30,364 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:09:30,390 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:09:30,390 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:09:30,390 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:09:30,390 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:09:30,390 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:09:30,390 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:09:30,391 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:09:30,391 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:09:30,391 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:09:30,404 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-28 12:09:30,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 12:09:30,408 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:09:30,409 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:09:30,411 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:09:30,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:09:30,415 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-28 12:09:30,418 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:09:30,418 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/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 [2018-11-28 12:09:30,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:09:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:09:30,516 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:09:30,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:09:30,599 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:09:30,609 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:09:30,609 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 12:09:30,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 12:09:30,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:09:30,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:09:30,624 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2018-11-28 12:09:30,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:09:30,675 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-11-28 12:09:30,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:09:30,676 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-28 12:09:30,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:09:30,680 INFO L225 Difference]: With dead ends: 24 [2018-11-28 12:09:30,680 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:09:30,683 INFO L631 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 [2018-11-28 12:09:30,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:09:30,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:09:30,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:09:30,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:09:30,704 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-28 12:09:30,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:09:30,704 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:09:30,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 12:09:30,705 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:09:30,705 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:09:30,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 12:09:30,741 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 12:09:30,741 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:09:30,741 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:09:30,741 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 12:09:30,741 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:09:30,741 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:09:30,741 INFO L444 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (= (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 10000000.0)) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 .cse1) (fp.sub roundNearestTiesToEven .cse0 .cse1))) main_~r~0) [2018-11-28 12:09:30,742 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 6 16) the Hoare annotation is: true [2018-11-28 12:09:30,742 INFO L448 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-28 12:09:30,742 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 6 16) no Hoare annotation was computed. [2018-11-28 12:09:30,742 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 6 16) no Hoare annotation was computed. [2018-11-28 12:09:30,742 INFO L448 ceAbstractionStarter]: For program point L4-3(line 4) no Hoare annotation was computed. [2018-11-28 12:09:30,742 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 4) the Hoare annotation is: true [2018-11-28 12:09:30,742 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 4) no Hoare annotation was computed. [2018-11-28 12:09:30,742 INFO L448 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-11-28 12:09:30,743 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-11-28 12:09:30,743 INFO L448 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2018-11-28 12:09:30,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:09:30 BoogieIcfgContainer [2018-11-28 12:09:30,745 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:09:30,746 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:09:30,746 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:09:30,746 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:09:30,746 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:09:30" (3/4) ... [2018-11-28 12:09:30,749 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:09:30,755 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 12:09:30,755 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 12:09:30,755 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-28 12:09:30,758 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-28 12:09:30,758 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 12:09:30,759 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 12:09:30,759 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 12:09:30,782 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f3c0355e-7662-4157-9001-80bdeabd9745/bin-2019/uautomizer/witness.graphml [2018-11-28 12:09:30,782 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:09:30,783 INFO L168 Benchmark]: Toolchain (without parser) took 834.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.5 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -173.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:09:30,784 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:09:30,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.01 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:09:30,785 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.14 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:09:30,785 INFO L168 Benchmark]: Boogie Preprocessor took 17.23 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:09:30,786 INFO L168 Benchmark]: RCFGBuilder took 203.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.5 MB). Free memory was 927.3 MB in the beginning and 1.2 GB in the end (delta: -223.1 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:09:30,786 INFO L168 Benchmark]: TraceAbstraction took 409.39 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: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:09:30,787 INFO L168 Benchmark]: Witness Printer took 36.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:09:30,788 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 150.01 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.14 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.23 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 203.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.5 MB). Free memory was 927.3 MB in the beginning and 1.2 GB in the end (delta: -223.1 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 409.39 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: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. * Witness Printer took 36.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 0.3s 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, 0.0s 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...