./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c82214860fee184bc373305d606fd208dd65fd42 ............................................................................................................................................................................................................................................... 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_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c82214860fee184bc373305d606fd208dd65fd42 ................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:58:25,656 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:58:25,657 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:58:25,667 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:58:25,667 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:58:25,668 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:58:25,669 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:58:25,671 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:58:25,672 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:58:25,672 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:58:25,673 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:58:25,673 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:58:25,674 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:58:25,675 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:58:25,676 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:58:25,677 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:58:25,678 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:58:25,679 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:58:25,681 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:58:25,682 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:58:25,683 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:58:25,685 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:58:25,687 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:58:25,687 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:58:25,687 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:58:25,688 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:58:25,689 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:58:25,690 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:58:25,690 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:58:25,691 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:58:25,692 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:58:25,693 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:58:25,693 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:58:25,693 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:58:25,694 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:58:25,695 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:58:25,695 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 23:58:25,707 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:58:25,707 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:58:25,708 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:58:25,709 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 23:58:25,709 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 23:58:25,709 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 23:58:25,709 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 23:58:25,709 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 23:58:25,709 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 23:58:25,709 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 23:58:25,710 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 23:58:25,710 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:58:25,710 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:58:25,711 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:58:25,711 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:58:25,711 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:58:25,711 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:58:25,711 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:58:25,711 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:58:25,711 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:58:25,712 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:58:25,713 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:58:25,714 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:58:25,714 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:58:25,714 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:58:25,714 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:58:25,714 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:58:25,715 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:58:25,715 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:58:25,715 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:58:25,715 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 23:58:25,715 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:58:25,715 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:58:25,715 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 23:58:25,716 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan 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 -> Taipan 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 -> c82214860fee184bc373305d606fd208dd65fd42 [2018-10-26 23:58:25,744 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:58:25,754 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:58:25,757 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:58:25,758 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:58:25,758 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:58:25,759 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i [2018-10-26 23:58:25,805 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/data/1e1432b2f/3af7de0099674bb2b4e38d6281868340/FLAG2109c2c0a [2018-10-26 23:58:26,189 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:58:26,192 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i [2018-10-26 23:58:26,198 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/data/1e1432b2f/3af7de0099674bb2b4e38d6281868340/FLAG2109c2c0a [2018-10-26 23:58:26,215 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/data/1e1432b2f/3af7de0099674bb2b4e38d6281868340 [2018-10-26 23:58:26,218 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:58:26,219 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:58:26,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:58:26,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:58:26,226 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:58:26,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:58:26" (1/1) ... [2018-10-26 23:58:26,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217b6dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:26, skipping insertion in model container [2018-10-26 23:58:26,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:58:26" (1/1) ... [2018-10-26 23:58:26,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:58:26,257 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:58:26,393 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:58:26,397 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:58:26,409 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:58:26,421 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:58:26,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:26 WrapperNode [2018-10-26 23:58:26,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:58:26,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:58:26,423 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:58:26,423 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:58:26,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:26" (1/1) ... [2018-10-26 23:58:26,436 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:26" (1/1) ... [2018-10-26 23:58:26,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:58:26,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:58:26,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:58:26,442 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:58:26,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:26" (1/1) ... [2018-10-26 23:58:26,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:26" (1/1) ... [2018-10-26 23:58:26,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:26" (1/1) ... [2018-10-26 23:58:26,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:26" (1/1) ... [2018-10-26 23:58:26,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:26" (1/1) ... [2018-10-26 23:58:26,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:26" (1/1) ... [2018-10-26 23:58:26,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:26" (1/1) ... [2018-10-26 23:58:26,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:58:26,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:58:26,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:58:26,460 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:58:26,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/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 [2018-10-26 23:58:26,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:58:26,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:58:26,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:58:26,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:58:26,566 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:58:26,566 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:58:26,812 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:58:26,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:58:26 BoogieIcfgContainer [2018-10-26 23:58:26,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:58:26,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:58:26,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:58:26,816 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:58:26,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:58:26" (1/3) ... [2018-10-26 23:58:26,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1475a70b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:58:26, skipping insertion in model container [2018-10-26 23:58:26,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:26" (2/3) ... [2018-10-26 23:58:26,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1475a70b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:58:26, skipping insertion in model container [2018-10-26 23:58:26,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:58:26" (3/3) ... [2018-10-26 23:58:26,821 INFO L112 eAbstractionObserver]: Analyzing ICFG float12_true-unreach-call_true-termination.i [2018-10-26 23:58:26,829 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:58:26,836 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:58:26,850 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:58:26,879 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:58:26,879 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:58:26,879 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:58:26,879 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:58:26,879 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:58:26,879 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:58:26,880 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:58:26,880 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:58:26,894 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-10-26 23:58:26,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-26 23:58:26,899 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:58:26,900 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:58:26,902 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:58:26,907 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:58:26,907 INFO L82 PathProgramCache]: Analyzing trace with hash -689330286, now seen corresponding path program 1 times [2018-10-26 23:58:26,909 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:58:26,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:58:26,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:58:26,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:58:26,953 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:58:26,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:58:26,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:58:26,992 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 23:58:27,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:58:27 BoogieIcfgContainer [2018-10-26 23:58:27,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:58:27,018 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:58:27,018 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:58:27,019 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:58:27,019 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:58:26" (3/4) ... [2018-10-26 23:58:27,023 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 23:58:27,023 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:58:27,023 INFO L168 Benchmark]: Toolchain (without parser) took 804.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 959.3 MB in the beginning and 1.2 GB in the end (delta: -192.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:58:27,025 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:58:27,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 201.61 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:58:27,026 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.67 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:58:27,027 INFO L168 Benchmark]: Boogie Preprocessor took 17.53 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:58:27,027 INFO L168 Benchmark]: RCFGBuilder took 353.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 948.5 MB in the beginning and 1.2 GB in the end (delta: -219.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-10-26 23:58:27,028 INFO L168 Benchmark]: TraceAbstraction took 204.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-26 23:58:27,028 INFO L168 Benchmark]: Witness Printer took 4.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:58:27,031 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 201.61 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 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 18.67 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.53 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 353.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 948.5 MB in the beginning and 1.2 GB in the end (delta: -219.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 204.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryDOUBLEComparisonOperation at line 13. Possible FailurePath: [L6] float f = __VERIFIER_nondet_float(); [L7] double d; [L8] unsigned char x = __VERIFIER_nondet_uchar(); [L10] d=f VAL [d=0, f=0, x=1] [L12] COND TRUE f==x VAL [d=0, f=0, x=1] [L13] COND TRUE !(d==x) VAL [d=0, f=0, x=1] [L13] __VERIFIER_error() VAL [d=0, f=0, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 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=13occurred 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, 8 NumberOfCodeBlocks, 8 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 0.1.23-1dbac8b [2018-10-26 23:58:28,990 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:58:28,991 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:58:29,001 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:58:29,001 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:58:29,002 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:58:29,003 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:58:29,005 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:58:29,006 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:58:29,007 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:58:29,008 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:58:29,008 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:58:29,009 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:58:29,010 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:58:29,011 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:58:29,011 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:58:29,013 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:58:29,014 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:58:29,015 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:58:29,017 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:58:29,018 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:58:29,019 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:58:29,021 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:58:29,021 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:58:29,021 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:58:29,022 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:58:29,023 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:58:29,023 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:58:29,025 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:58:29,026 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:58:29,026 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:58:29,026 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:58:29,027 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:58:29,027 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:58:29,027 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:58:29,029 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:58:29,029 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 23:58:29,042 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:58:29,042 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:58:29,043 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:58:29,043 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 23:58:29,043 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 23:58:29,043 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 23:58:29,043 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 23:58:29,043 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 23:58:29,045 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:58:29,045 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:58:29,045 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:58:29,045 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:58:29,045 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:58:29,045 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:58:29,046 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:58:29,046 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 23:58:29,046 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 23:58:29,046 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:58:29,046 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:58:29,046 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:58:29,046 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:58:29,047 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:58:29,047 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:58:29,047 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:58:29,047 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:58:29,047 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:58:29,047 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:58:29,048 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:58:29,048 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 23:58:29,050 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:58:29,050 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 23:58:29,050 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 23:58:29,050 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_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan 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 -> Taipan 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 -> c82214860fee184bc373305d606fd208dd65fd42 [2018-10-26 23:58:29,090 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:58:29,101 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:58:29,103 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:58:29,105 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:58:29,105 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:58:29,106 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i [2018-10-26 23:58:29,152 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/data/b7b2a6259/634469ba00b848839ac2ddae6a6101d7/FLAG84e4704f0 [2018-10-26 23:58:29,540 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:58:29,542 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i [2018-10-26 23:58:29,550 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/data/b7b2a6259/634469ba00b848839ac2ddae6a6101d7/FLAG84e4704f0 [2018-10-26 23:58:29,565 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/data/b7b2a6259/634469ba00b848839ac2ddae6a6101d7 [2018-10-26 23:58:29,568 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:58:29,570 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:58:29,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:58:29,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:58:29,581 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:58:29,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:58:29" (1/1) ... [2018-10-26 23:58:29,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a9e77f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:29, skipping insertion in model container [2018-10-26 23:58:29,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:58:29" (1/1) ... [2018-10-26 23:58:29,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:58:29,614 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:58:29,773 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:58:29,778 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:58:29,794 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:58:29,808 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:58:29,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:29 WrapperNode [2018-10-26 23:58:29,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:58:29,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:58:29,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:58:29,810 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:58:29,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:29" (1/1) ... [2018-10-26 23:58:29,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:29" (1/1) ... [2018-10-26 23:58:29,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:58:29,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:58:29,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:58:29,834 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:58:29,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:29" (1/1) ... [2018-10-26 23:58:29,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:29" (1/1) ... [2018-10-26 23:58:29,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:29" (1/1) ... [2018-10-26 23:58:29,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:29" (1/1) ... [2018-10-26 23:58:29,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:29" (1/1) ... [2018-10-26 23:58:29,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:29" (1/1) ... [2018-10-26 23:58:29,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:29" (1/1) ... [2018-10-26 23:58:29,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:58:29,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:58:29,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:58:29,860 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:58:29,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/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 [2018-10-26 23:58:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:58:29,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:58:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:58:29,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:58:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:58:29,916 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:58:30,192 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:58:30,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:58:30 BoogieIcfgContainer [2018-10-26 23:58:30,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:58:30,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:58:30,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:58:30,197 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:58:30,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:58:29" (1/3) ... [2018-10-26 23:58:30,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7664da40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:58:30, skipping insertion in model container [2018-10-26 23:58:30,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:58:29" (2/3) ... [2018-10-26 23:58:30,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7664da40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:58:30, skipping insertion in model container [2018-10-26 23:58:30,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:58:30" (3/3) ... [2018-10-26 23:58:30,204 INFO L112 eAbstractionObserver]: Analyzing ICFG float12_true-unreach-call_true-termination.i [2018-10-26 23:58:30,219 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:58:30,226 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:58:30,241 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:58:30,269 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 23:58:30,269 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:58:30,270 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:58:30,270 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:58:30,270 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:58:30,270 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:58:30,270 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:58:30,270 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:58:30,270 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:58:30,285 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-10-26 23:58:30,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-26 23:58:30,291 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:58:30,292 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:58:30,294 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:58:30,300 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:58:30,300 INFO L82 PathProgramCache]: Analyzing trace with hash -689330286, now seen corresponding path program 1 times [2018-10-26 23:58:30,304 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 23:58:30,304 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/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 [2018-10-26 23:58:30,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:58:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:58:30,357 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:58:30,589 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-10-26 23:58:31,569 WARN L179 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-26 23:58:32,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:58:32,286 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 23:58:32,296 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:58:32,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 23:58:32,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 23:58:32,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 23:58:32,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-26 23:58:32,313 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2018-10-26 23:58:36,319 WARN L179 SmtUtils]: Spent 2.51 s on a formula simplification that was a NOOP. DAG size: 11 [2018-10-26 23:58:37,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:58:37,472 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-10-26 23:58:37,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 23:58:37,492 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-10-26 23:58:37,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:58:37,498 INFO L225 Difference]: With dead ends: 19 [2018-10-26 23:58:37,498 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 23:58:37,501 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-26 23:58:37,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 23:58:37,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 23:58:37,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 23:58:37,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 23:58:37,531 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-10-26 23:58:37,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:58:37,531 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 23:58:37,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 23:58:37,531 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 23:58:37,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 23:58:37,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 23:58:37,628 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-26 23:58:37,628 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 23:58:37,628 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 23:58:37,628 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 23:58:37,628 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 23:58:37,628 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 23:58:37,629 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 4 14) the Hoare annotation is: true [2018-10-26 23:58:37,629 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 4 14) no Hoare annotation was computed. [2018-10-26 23:58:37,629 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2018-10-26 23:58:37,629 INFO L425 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-10-26 23:58:37,629 INFO L425 ceAbstractionStarter]: For program point L12(lines 12 13) no Hoare annotation was computed. [2018-10-26 23:58:37,631 INFO L425 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2018-10-26 23:58:37,631 INFO L425 ceAbstractionStarter]: For program point L12-1(lines 4 14) no Hoare annotation was computed. [2018-10-26 23:58:37,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:58:37 BoogieIcfgContainer [2018-10-26 23:58:37,633 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:58:37,634 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:58:37,634 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:58:37,634 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:58:37,634 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:58:30" (3/4) ... [2018-10-26 23:58:37,639 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 23:58:37,645 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 23:58:37,646 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 23:58:37,649 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-10-26 23:58:37,649 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-26 23:58:37,649 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 23:58:37,684 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c7664cf1-6e67-4ea1-9847-7ed0ba27059a/bin-2019/utaipan/witness.graphml [2018-10-26 23:58:37,684 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:58:37,685 INFO L168 Benchmark]: Toolchain (without parser) took 8115.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -121.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 11.5 GB. [2018-10-26 23:58:37,686 INFO L168 Benchmark]: CDTParser took 0.18 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. [2018-10-26 23:58:37,686 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.82 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:58:37,686 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.68 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:58:37,687 INFO L168 Benchmark]: Boogie Preprocessor took 25.50 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 23:58:37,687 INFO L168 Benchmark]: RCFGBuilder took 333.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -172.3 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-10-26 23:58:37,688 INFO L168 Benchmark]: TraceAbstraction took 7439.93 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: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. [2018-10-26 23:58:37,690 INFO L168 Benchmark]: Witness Printer took 50.34 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. [2018-10-26 23:58:37,693 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 235.82 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 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 23.68 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.50 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 333.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -172.3 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7439.93 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: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. * Witness Printer took 50.34 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: 13]: 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 3 procedures, 13 locations, 1 error locations. SAFE Result, 7.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 5.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 6 SDslu, 15 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 1 QuantifiedInterpolants, 154 SizeOfPredicates, 3 NumberOfNonLiveVariables, 16 ConjunctsInSsa, 3 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...