./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/addsub_float_inexact_true-unreach-call_true-termination.c --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_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_inexact_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/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 a9ad6ad46925d70ccfe8113c6806757723d44310 ................................................................................................................................................................................................................................................. 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_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_inexact_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/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 a9ad6ad46925d70ccfe8113c6806757723d44310 ...................................................................................................................................................................................................................................................................................... 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 23:54:30,488 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:54:30,490 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:54:30,501 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:54:30,502 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:54:30,503 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:54:30,504 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:54:30,505 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:54:30,507 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:54:30,508 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:54:30,509 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:54:30,509 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:54:30,511 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:54:30,512 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:54:30,513 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:54:30,513 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:54:30,515 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:54:30,516 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:54:30,518 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:54:30,520 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:54:30,521 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:54:30,523 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:54:30,525 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:54:30,525 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:54:30,525 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:54:30,527 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:54:30,528 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:54:30,528 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:54:30,529 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:54:30,531 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:54:30,531 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:54:30,532 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:54:30,532 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:54:30,532 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:54:30,533 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:54:30,535 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:54:30,535 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 23:54:30,548 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:54:30,549 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:54:30,550 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:54:30,550 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 23:54:30,550 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 23:54:30,550 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 23:54:30,551 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 23:54:30,551 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 23:54:30,551 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 23:54:30,551 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 23:54:30,551 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 23:54:30,552 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:54:30,552 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:54:30,552 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:54:30,553 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:54:30,553 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:54:30,553 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:54:30,553 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:54:30,553 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:54:30,553 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:54:30,556 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:54:30,556 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:54:30,556 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:54:30,556 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:54:30,556 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:54:30,557 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:54:30,557 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:54:30,557 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:54:30,557 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:54:30,557 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:54:30,558 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 23:54:30,558 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:54:30,558 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:54:30,558 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 23:54:30,558 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_eb965024-773f-4150-a18a-13f264e56a9e/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 -> a9ad6ad46925d70ccfe8113c6806757723d44310 [2018-10-26 23:54:30,601 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:54:30,612 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:54:30,615 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:54:30,617 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:54:30,617 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:54:30,618 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/addsub_float_inexact_true-unreach-call_true-termination.c [2018-10-26 23:54:30,673 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/data/080888fcc/ecd1187f5e90463aa5a84dc0527ee8c8/FLAGf399115f1 [2018-10-26 23:54:31,068 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:54:31,069 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/sv-benchmarks/c/float-benchs/addsub_float_inexact_true-unreach-call_true-termination.c [2018-10-26 23:54:31,076 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/data/080888fcc/ecd1187f5e90463aa5a84dc0527ee8c8/FLAGf399115f1 [2018-10-26 23:54:31,089 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/data/080888fcc/ecd1187f5e90463aa5a84dc0527ee8c8 [2018-10-26 23:54:31,092 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:54:31,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:54:31,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:54:31,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:54:31,099 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:54:31,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:54:31" (1/1) ... [2018-10-26 23:54:31,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c89e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:31, skipping insertion in model container [2018-10-26 23:54:31,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:54:31" (1/1) ... [2018-10-26 23:54:31,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:54:31,128 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:54:31,269 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:54:31,273 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:54:31,288 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:54:31,302 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:54:31,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:31 WrapperNode [2018-10-26 23:54:31,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:54:31,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:54:31,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:54:31,304 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:54:31,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:31" (1/1) ... [2018-10-26 23:54:31,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:31" (1/1) ... [2018-10-26 23:54:31,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:54:31,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:54:31,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:54:31,326 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:54:31,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:31" (1/1) ... [2018-10-26 23:54:31,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:31" (1/1) ... [2018-10-26 23:54:31,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:31" (1/1) ... [2018-10-26 23:54:31,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:31" (1/1) ... [2018-10-26 23:54:31,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:31" (1/1) ... [2018-10-26 23:54:31,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:31" (1/1) ... [2018-10-26 23:54:31,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:31" (1/1) ... [2018-10-26 23:54:31,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:54:31,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:54:31,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:54:31,344 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:54:31,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/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 23:54:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:54:31,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:54:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:54:31,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:54:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:54:31,529 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:54:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 23:54:31,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 23:54:31,736 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:54:31,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:54:31 BoogieIcfgContainer [2018-10-26 23:54:31,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:54:31,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:54:31,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:54:31,741 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:54:31,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:54:31" (1/3) ... [2018-10-26 23:54:31,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51911cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:54:31, skipping insertion in model container [2018-10-26 23:54:31,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:31" (2/3) ... [2018-10-26 23:54:31,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51911cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:54:31, skipping insertion in model container [2018-10-26 23:54:31,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:54:31" (3/3) ... [2018-10-26 23:54:31,745 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_float_inexact_true-unreach-call_true-termination.c [2018-10-26 23:54:31,755 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:54:31,763 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:54:31,780 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:54:31,813 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:54:31,813 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:54:31,813 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:54:31,814 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:54:31,814 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:54:31,814 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:54:31,814 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:54:31,814 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:54:31,832 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-10-26 23:54:31,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-26 23:54:31,838 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:54:31,839 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:54:31,841 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:54:31,847 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:54:31,847 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-10-26 23:54:31,849 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:54:31,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:54:31,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:54:31,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:54:31,902 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:54:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:54:31,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:54:31,962 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 23:54:31,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:54:31 BoogieIcfgContainer [2018-10-26 23:54:31,987 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:54:31,987 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:54:31,987 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:54:31,987 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:54:31,988 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:54:31" (3/4) ... [2018-10-26 23:54:31,992 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 23:54:31,992 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:54:31,993 INFO L168 Benchmark]: Toolchain (without parser) took 900.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 960.7 MB in the beginning and 1.1 GB in the end (delta: -162.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:54:31,995 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:54:31,996 INFO L168 Benchmark]: CACSL2BoogieTranslator took 208.86 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:54:31,997 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.57 ms. Allocated memory is still 1.0 GB. Free memory is still 950.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:54:31,997 INFO L168 Benchmark]: Boogie Preprocessor took 18.14 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 947.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:54:31,998 INFO L168 Benchmark]: RCFGBuilder took 392.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -187.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-10-26 23:54:31,999 INFO L168 Benchmark]: TraceAbstraction took 249.28 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: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-10-26 23:54:32,000 INFO L168 Benchmark]: Witness Printer took 5.32 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 23:54:32,003 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 208.86 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 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 21.57 ms. Allocated memory is still 1.0 GB. Free memory is still 950.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.14 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 947.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 392.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -187.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 249.28 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: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.32 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 someBinaryArithmeticFLOAToperation at line 11. Possible FailurePath: [L8] float x, y, z, r; [L10] x = 1e8f [L11] y = x + 1.f [L12] z = x - 1.f [L13] r = y - z VAL [x=100000000] [L14] CALL __VERIFIER_assert(r == 0.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 0.1.23-1dbac8b [2018-10-26 23:54:34,112 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:54:34,114 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:54:34,127 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:54:34,128 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:54:34,128 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:54:34,130 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:54:34,132 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:54:34,133 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:54:34,134 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:54:34,135 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:54:34,135 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:54:34,136 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:54:34,137 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:54:34,139 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:54:34,140 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:54:34,141 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:54:34,143 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:54:34,144 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:54:34,146 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:54:34,147 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:54:34,148 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:54:34,151 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:54:34,151 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:54:34,152 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:54:34,153 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:54:34,154 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:54:34,155 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:54:34,156 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:54:34,157 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:54:34,157 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:54:34,158 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:54:34,159 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:54:34,159 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:54:34,160 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:54:34,160 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:54:34,161 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 23:54:34,175 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:54:34,178 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:54:34,179 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:54:34,179 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 23:54:34,179 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 23:54:34,179 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 23:54:34,179 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 23:54:34,179 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 23:54:34,180 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:54:34,180 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:54:34,180 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:54:34,181 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:54:34,181 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:54:34,181 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:54:34,181 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:54:34,181 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 23:54:34,181 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 23:54:34,182 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:54:34,182 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:54:34,182 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:54:34,182 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:54:34,182 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:54:34,183 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:54:34,183 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:54:34,183 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:54:34,183 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:54:34,183 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:54:34,183 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:54:34,184 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 23:54:34,184 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:54:34,184 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 23:54:34,184 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 23:54:34,184 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_eb965024-773f-4150-a18a-13f264e56a9e/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 -> a9ad6ad46925d70ccfe8113c6806757723d44310 [2018-10-26 23:54:34,257 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:54:34,268 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:54:34,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:54:34,273 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:54:34,274 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:54:34,275 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/addsub_float_inexact_true-unreach-call_true-termination.c [2018-10-26 23:54:34,331 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/data/b5d11d31b/be94d13709674fc3b65b0438cdb154c4/FLAG6b5247256 [2018-10-26 23:54:34,726 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:54:34,726 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/sv-benchmarks/c/float-benchs/addsub_float_inexact_true-unreach-call_true-termination.c [2018-10-26 23:54:34,737 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/data/b5d11d31b/be94d13709674fc3b65b0438cdb154c4/FLAG6b5247256 [2018-10-26 23:54:34,754 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/data/b5d11d31b/be94d13709674fc3b65b0438cdb154c4 [2018-10-26 23:54:34,757 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:54:34,761 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:54:34,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:54:34,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:54:34,769 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:54:34,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:54:34" (1/1) ... [2018-10-26 23:54:34,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@559bb6cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:34, skipping insertion in model container [2018-10-26 23:54:34,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:54:34" (1/1) ... [2018-10-26 23:54:34,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:54:34,809 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:54:34,980 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:54:34,987 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:54:35,004 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:54:35,021 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:54:35,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:35 WrapperNode [2018-10-26 23:54:35,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:54:35,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:54:35,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:54:35,023 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:54:35,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:35" (1/1) ... [2018-10-26 23:54:35,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:35" (1/1) ... [2018-10-26 23:54:35,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:54:35,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:54:35,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:54:35,050 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:54:35,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:35" (1/1) ... [2018-10-26 23:54:35,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:35" (1/1) ... [2018-10-26 23:54:35,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:35" (1/1) ... [2018-10-26 23:54:35,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:35" (1/1) ... [2018-10-26 23:54:35,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:35" (1/1) ... [2018-10-26 23:54:35,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:35" (1/1) ... [2018-10-26 23:54:35,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:35" (1/1) ... [2018-10-26 23:54:35,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:54:35,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:54:35,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:54:35,085 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:54:35,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/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 23:54:35,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:54:35,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:54:35,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:54:35,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:54:35,152 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:54:35,152 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:54:35,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 23:54:35,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 23:54:35,434 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:54:35,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:54:35 BoogieIcfgContainer [2018-10-26 23:54:35,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:54:35,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:54:35,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:54:35,440 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:54:35,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:54:34" (1/3) ... [2018-10-26 23:54:35,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a45dc1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:54:35, skipping insertion in model container [2018-10-26 23:54:35,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:54:35" (2/3) ... [2018-10-26 23:54:35,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a45dc1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:54:35, skipping insertion in model container [2018-10-26 23:54:35,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:54:35" (3/3) ... [2018-10-26 23:54:35,445 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_float_inexact_true-unreach-call_true-termination.c [2018-10-26 23:54:35,456 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:54:35,464 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:54:35,481 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:54:35,513 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 23:54:35,513 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:54:35,514 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:54:35,514 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:54:35,514 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:54:35,514 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:54:35,515 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:54:35,515 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:54:35,515 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:54:35,538 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-10-26 23:54:35,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-26 23:54:35,545 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:54:35,546 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:54:35,548 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:54:35,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:54:35,561 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-10-26 23:54:35,566 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 23:54:35,567 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 23:54:35,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-26 23:54:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:54:35,710 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:54:35,938 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 5 [2018-10-26 23:54:35,977 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 23:54:35,978 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 23:54:35,989 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:54:35,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 23:54:35,992 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 23:54:36,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 23:54:36,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 23:54:36,005 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2018-10-26 23:54:36,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:54:36,095 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-10-26 23:54:36,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 23:54:36,097 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-10-26 23:54:36,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:54:36,103 INFO L225 Difference]: With dead ends: 24 [2018-10-26 23:54:36,103 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 23:54:36,107 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 23:54:36,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 23:54:36,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 23:54:36,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 23:54:36,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 23:54:36,135 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-10-26 23:54:36,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:54:36,136 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 23:54:36,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 23:54:36,136 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 23:54:36,136 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 23:54:36,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 23:54:36,192 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-26 23:54:36,192 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 23:54:36,192 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 23:54:36,192 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 23:54:36,192 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 23:54:36,193 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 23:54:36,193 INFO L421 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (= (let ((.cse0 ((_ to_fp 8 24) RNE 100000000.0)) (.cse1 ((_ to_fp 8 24) RNE 1.0))) (fp.sub RNE (fp.add RNE .cse0 .cse1) (fp.sub RNE .cse0 .cse1))) main_~r~0) [2018-10-26 23:54:36,193 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 6 16) the Hoare annotation is: true [2018-10-26 23:54:36,193 INFO L425 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-10-26 23:54:36,194 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 6 16) no Hoare annotation was computed. [2018-10-26 23:54:36,195 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 6 16) no Hoare annotation was computed. [2018-10-26 23:54:36,195 INFO L425 ceAbstractionStarter]: For program point L4-3(line 4) no Hoare annotation was computed. [2018-10-26 23:54:36,196 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 4) the Hoare annotation is: true [2018-10-26 23:54:36,196 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 4) no Hoare annotation was computed. [2018-10-26 23:54:36,196 INFO L425 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-10-26 23:54:36,196 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-10-26 23:54:36,196 INFO L425 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2018-10-26 23:54:36,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:54:36 BoogieIcfgContainer [2018-10-26 23:54:36,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:54:36,202 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:54:36,202 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:54:36,202 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:54:36,202 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:54:35" (3/4) ... [2018-10-26 23:54:36,207 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 23:54:36,215 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 23:54:36,215 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 23:54:36,215 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-26 23:54:36,220 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-10-26 23:54:36,220 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 23:54:36,221 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 23:54:36,221 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 23:54:36,262 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_eb965024-773f-4150-a18a-13f264e56a9e/bin-2019/utaipan/witness.graphml [2018-10-26 23:54:36,262 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:54:36,263 INFO L168 Benchmark]: Toolchain (without parser) took 1505.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -152.8 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. [2018-10-26 23:54:36,264 INFO L168 Benchmark]: CDTParser took 0.24 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 23:54:36,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.45 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:54:36,265 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.49 ms. Allocated memory is still 1.0 GB. Free memory is still 939.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:54:36,266 INFO L168 Benchmark]: Boogie Preprocessor took 34.96 ms. Allocated memory is still 1.0 GB. Free memory was 939.8 MB in the beginning and 934.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 23:54:36,266 INFO L168 Benchmark]: RCFGBuilder took 350.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 934.5 MB in the beginning and 1.1 GB in the end (delta: -208.6 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2018-10-26 23:54:36,267 INFO L168 Benchmark]: TraceAbstraction took 764.88 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: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. [2018-10-26 23:54:36,267 INFO L168 Benchmark]: Witness Printer took 60.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-10-26 23:54:36,272 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 260.45 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 939.8 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 26.49 ms. Allocated memory is still 1.0 GB. Free memory is still 939.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.96 ms. Allocated memory is still 1.0 GB. Free memory was 939.8 MB in the beginning and 934.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 350.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 934.5 MB in the beginning and 1.1 GB in the end (delta: -208.6 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 764.88 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: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. * Witness Printer took 60.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s 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, 0.2s 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, 0.2s 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...