./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b_true-unreach-call.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_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/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 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 .............................................................................................................................................................................................................................................................................................................................................................................. 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_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/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 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 13:35:25,604 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:35:25,605 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:35:25,613 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:35:25,613 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:35:25,614 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:35:25,615 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:35:25,616 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:35:25,618 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:35:25,618 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:35:25,619 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:35:25,619 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:35:25,620 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:35:25,620 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:35:25,621 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:35:25,622 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:35:25,622 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:35:25,624 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:35:25,625 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:35:25,626 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:35:25,627 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:35:25,628 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:35:25,629 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:35:25,629 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:35:25,630 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:35:25,630 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:35:25,631 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:35:25,632 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:35:25,632 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:35:25,633 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:35:25,633 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:35:25,634 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:35:25,634 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:35:25,634 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:35:25,635 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:35:25,635 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:35:25,635 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 13:35:25,645 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:35:25,646 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:35:25,646 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:35:25,646 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:35:25,647 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:35:25,647 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:35:25,647 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 13:35:25,647 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:35:25,647 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 13:35:25,647 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 13:35:25,647 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:35:25,648 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:35:25,648 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:35:25,648 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:35:25,648 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:35:25,649 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:35:25,649 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:35:25,649 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:35:25,649 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:35:25,649 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:35:25,649 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:35:25,649 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:35:25,650 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:35:25,650 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:35:25,650 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:35:25,650 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:35:25,650 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:35:25,650 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:35:25,651 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:35:25,651 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:35:25,651 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 13:35:25,651 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:35:25,651 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:35:25,651 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 13:35:25,651 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_367ee863-ac79-401e-b987-a37e007d97af/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 -> 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 [2018-11-10 13:35:25,675 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:35:25,684 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:35:25,686 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:35:25,688 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:35:25,688 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:35:25,689 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b_true-unreach-call.c [2018-11-10 13:35:25,733 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/data/800b67385/46f039b0422d4df680b7e3ec23fad44b/FLAGb100e8c35 [2018-11-10 13:35:26,131 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:35:26,131 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/sv-benchmarks/c/float-newlib/float_req_bl_1032b_true-unreach-call.c [2018-11-10 13:35:26,136 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/data/800b67385/46f039b0422d4df680b7e3ec23fad44b/FLAGb100e8c35 [2018-11-10 13:35:26,145 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/data/800b67385/46f039b0422d4df680b7e3ec23fad44b [2018-11-10 13:35:26,147 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:35:26,147 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:35:26,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:35:26,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:35:26,150 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:35:26,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:35:26" (1/1) ... [2018-11-10 13:35:26,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@549999d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:26, skipping insertion in model container [2018-11-10 13:35:26,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:35:26" (1/1) ... [2018-11-10 13:35:26,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:35:26,172 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:35:26,278 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:35:26,280 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:35:26,294 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:35:26,306 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:35:26,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:26 WrapperNode [2018-11-10 13:35:26,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:35:26,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:35:26,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:35:26,307 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:35:26,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:26" (1/1) ... [2018-11-10 13:35:26,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:26" (1/1) ... [2018-11-10 13:35:26,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:35:26,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:35:26,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:35:26,334 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:35:26,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:26" (1/1) ... [2018-11-10 13:35:26,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:26" (1/1) ... [2018-11-10 13:35:26,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:26" (1/1) ... [2018-11-10 13:35:26,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:26" (1/1) ... [2018-11-10 13:35:26,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:26" (1/1) ... [2018-11-10 13:35:26,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:26" (1/1) ... [2018-11-10 13:35:26,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:26" (1/1) ... [2018-11-10 13:35:26,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:35:26,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:35:26,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:35:26,354 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:35:26,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/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 [2018-11-10 13:35:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:35:26,438 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:35:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:35:26,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:35:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-11-10 13:35:26,439 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-11-10 13:35:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:35:26,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:35:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-10 13:35:26,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-10 13:35:26,654 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:35:26,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:35:26 BoogieIcfgContainer [2018-11-10 13:35:26,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:35:26,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:35:26,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:35:26,659 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:35:26,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:35:26" (1/3) ... [2018-11-10 13:35:26,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1162b86f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:35:26, skipping insertion in model container [2018-11-10 13:35:26,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:26" (2/3) ... [2018-11-10 13:35:26,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1162b86f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:35:26, skipping insertion in model container [2018-11-10 13:35:26,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:35:26" (3/3) ... [2018-11-10 13:35:26,662 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b_true-unreach-call.c [2018-11-10 13:35:26,670 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:35:26,677 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:35:26,689 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:35:26,710 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:35:26,710 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:35:26,710 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:35:26,710 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:35:26,710 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:35:26,711 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:35:26,711 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:35:26,711 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:35:26,723 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-11-10 13:35:26,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 13:35:26,727 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:35:26,728 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:35:26,729 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:35:26,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:35:26,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1066529686, now seen corresponding path program 1 times [2018-11-10 13:35:26,735 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:35:26,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:35:26,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:35:26,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:35:26,765 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:35:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:35:26,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:35:26,821 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:35:26,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:35:26,821 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:35:26,826 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 13:35:26,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 13:35:26,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 13:35:26,839 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-11-10 13:35:26,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:35:26,853 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2018-11-10 13:35:26,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 13:35:26,854 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-10 13:35:26,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:35:26,859 INFO L225 Difference]: With dead ends: 68 [2018-11-10 13:35:26,860 INFO L226 Difference]: Without dead ends: 34 [2018-11-10 13:35:26,862 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 13:35:26,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-10 13:35:26,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-10 13:35:26,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-10 13:35:26,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2018-11-10 13:35:26,885 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 18 [2018-11-10 13:35:26,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:35:26,885 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2018-11-10 13:35:26,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 13:35:26,886 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2018-11-10 13:35:26,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 13:35:26,886 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:35:26,887 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:35:26,887 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:35:26,887 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:35:26,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1883902620, now seen corresponding path program 1 times [2018-11-10 13:35:26,887 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:35:26,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:35:26,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:35:26,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:35:26,889 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:35:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:35:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:35:26,966 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 13:35:26,976 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:35:26,976 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:35:26,977 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:35:26,977 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:35:26,977 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:35:26,977 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:35:26,977 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:35:26,977 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:35:26,977 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:35:26,978 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:35:26,978 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:35:26,978 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:35:26,978 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:35:26,978 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:35:26,979 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:35:26,979 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:35:26,979 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:35:26,979 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:35:26,979 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:35:26,979 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:35:26,980 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:35:26,980 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:35:26,980 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:35:26,980 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:35:26,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:35:26 BoogieIcfgContainer [2018-11-10 13:35:26,991 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:35:26,991 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:35:26,992 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:35:26,992 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:35:26,992 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:35:26" (3/4) ... [2018-11-10 13:35:26,995 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 13:35:26,995 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:35:26,995 INFO L168 Benchmark]: Toolchain (without parser) took 848.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 958.2 MB in the beginning and 1.1 GB in the end (delta: -121.0 MB). Peak memory consumption was 11.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:35:26,997 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-10 13:35:26,997 INFO L168 Benchmark]: CACSL2BoogieTranslator took 159.07 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-10 13:35:26,998 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.32 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:35:26,998 INFO L168 Benchmark]: Boogie Preprocessor took 20.30 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 942.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:35:26,999 INFO L168 Benchmark]: RCFGBuilder took 300.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -167.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:35:26,999 INFO L168 Benchmark]: TraceAbstraction took 335.35 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: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2018-11-10 13:35:27,000 INFO L168 Benchmark]: Witness Printer took 3.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:35:27,003 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 159.07 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.32 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.30 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 942.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 300.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -167.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 335.35 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: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.49 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of bitwiseAnd at line 23, overapproximation of someUnaryFLOAToperation at line 75, overapproximation of someBinaryArithmeticFLOAToperation at line 43. Possible FailurePath: [L75] float x = -0.0f; [L76] CALL, EXPR round_float(x) [L13] __uint32_t w; [L15] int exponent_less_127; [L18] CALL ieee_float_shape_type gf_u; [L18] RET ieee_float_shape_type gf_u; [L19] CALL gf_u.value = (x) [L19] RET gf_u.value = (x) [L20] CALL, EXPR gf_u.word [L20] RET, EXPR gf_u.word [L20] (w) = gf_u.word [L20] RET (w) = gf_u.word [L21] COND FALSE !(0) [L23] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L25] COND FALSE !(exponent_less_127 < 23) [L41] COND TRUE exponent_less_127 == 128 [L43] RET return x + x; [L76] EXPR round_float(x) VAL [round_float(x)=6, x=10] [L76] float res = round_float(x); [L79] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=6, res == -0.0f && __signbit_float(res) == 1=0, x=10] [L79] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L80] __VERIFIER_error() VAL [res=6, x=10] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2018-11-10 13:35:28,480 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:35:28,481 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:35:28,488 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:35:28,488 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:35:28,489 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:35:28,490 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:35:28,491 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:35:28,492 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:35:28,492 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:35:28,493 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:35:28,493 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:35:28,494 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:35:28,495 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:35:28,495 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:35:28,496 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:35:28,497 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:35:28,498 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:35:28,499 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:35:28,500 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:35:28,501 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:35:28,502 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:35:28,503 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:35:28,504 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:35:28,504 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:35:28,504 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:35:28,505 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:35:28,506 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:35:28,506 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:35:28,507 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:35:28,507 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:35:28,507 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:35:28,508 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:35:28,508 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:35:28,509 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:35:28,509 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:35:28,509 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 13:35:28,519 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:35:28,520 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:35:28,520 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:35:28,521 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:35:28,521 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:35:28,521 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:35:28,521 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:35:28,521 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:35:28,522 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:35:28,522 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:35:28,522 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:35:28,522 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:35:28,522 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:35:28,522 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:35:28,522 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:35:28,522 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 13:35:28,523 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 13:35:28,523 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:35:28,523 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:35:28,523 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:35:28,523 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:35:28,523 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:35:28,523 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:35:28,523 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:35:28,524 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:35:28,524 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:35:28,524 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:35:28,524 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:35:28,524 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 13:35:28,524 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:35:28,524 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 13:35:28,524 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 13:35:28,525 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_367ee863-ac79-401e-b987-a37e007d97af/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 -> 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 [2018-11-10 13:35:28,554 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:35:28,563 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:35:28,565 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:35:28,567 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:35:28,567 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:35:28,567 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b_true-unreach-call.c [2018-11-10 13:35:28,612 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/data/81e49b60a/48f644f9e05c4019afe3cdb813838520/FLAG6765c39f3 [2018-11-10 13:35:28,920 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:35:28,921 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/sv-benchmarks/c/float-newlib/float_req_bl_1032b_true-unreach-call.c [2018-11-10 13:35:28,926 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/data/81e49b60a/48f644f9e05c4019afe3cdb813838520/FLAG6765c39f3 [2018-11-10 13:35:28,934 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/data/81e49b60a/48f644f9e05c4019afe3cdb813838520 [2018-11-10 13:35:28,937 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:35:28,938 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:35:28,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:35:28,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:35:28,940 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:35:28,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:35:28" (1/1) ... [2018-11-10 13:35:28,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de1527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:28, skipping insertion in model container [2018-11-10 13:35:28,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:35:28" (1/1) ... [2018-11-10 13:35:28,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:35:28,963 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:35:29,078 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:35:29,081 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:35:29,100 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:35:29,116 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:35:29,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:29 WrapperNode [2018-11-10 13:35:29,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:35:29,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:35:29,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:35:29,117 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:35:29,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:29" (1/1) ... [2018-11-10 13:35:29,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:29" (1/1) ... [2018-11-10 13:35:29,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:35:29,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:35:29,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:35:29,149 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:35:29,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:29" (1/1) ... [2018-11-10 13:35:29,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:29" (1/1) ... [2018-11-10 13:35:29,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:29" (1/1) ... [2018-11-10 13:35:29,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:29" (1/1) ... [2018-11-10 13:35:29,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:29" (1/1) ... [2018-11-10 13:35:29,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:29" (1/1) ... [2018-11-10 13:35:29,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:29" (1/1) ... [2018-11-10 13:35:29,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:35:29,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:35:29,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:35:29,175 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:35:29,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/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 [2018-11-10 13:35:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:35:29,259 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:35:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:35:29,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:35:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-11-10 13:35:29,259 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-11-10 13:35:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:35:29,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:35:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-10 13:35:29,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-10 13:35:29,397 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 13:35:29,520 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 13:35:29,532 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:35:29,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:35:29 BoogieIcfgContainer [2018-11-10 13:35:29,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:35:29,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:35:29,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:35:29,535 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:35:29,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:35:28" (1/3) ... [2018-11-10 13:35:29,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ab9fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:35:29, skipping insertion in model container [2018-11-10 13:35:29,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:35:29" (2/3) ... [2018-11-10 13:35:29,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ab9fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:35:29, skipping insertion in model container [2018-11-10 13:35:29,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:35:29" (3/3) ... [2018-11-10 13:35:29,538 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b_true-unreach-call.c [2018-11-10 13:35:29,544 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:35:29,549 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:35:29,557 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:35:29,576 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 13:35:29,576 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:35:29,576 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:35:29,576 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:35:29,577 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:35:29,577 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:35:29,577 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:35:29,577 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:35:29,577 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:35:29,587 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-11-10 13:35:29,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 13:35:29,591 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:35:29,592 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:35:29,593 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:35:29,597 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:35:29,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1066529686, now seen corresponding path program 1 times [2018-11-10 13:35:29,599 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:35:29,600 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/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 [2018-11-10 13:35:29,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:35:29,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:35:29,653 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:35:29,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:35:29,664 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:35:29,673 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:35:29,673 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:35:29,676 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 13:35:29,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 13:35:29,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 13:35:29,685 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-11-10 13:35:29,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:35:29,699 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2018-11-10 13:35:29,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 13:35:29,700 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-10 13:35:29,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:35:29,706 INFO L225 Difference]: With dead ends: 68 [2018-11-10 13:35:29,706 INFO L226 Difference]: Without dead ends: 34 [2018-11-10 13:35:29,709 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 13:35:29,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-10 13:35:29,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-10 13:35:29,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-10 13:35:29,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2018-11-10 13:35:29,732 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 18 [2018-11-10 13:35:29,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:35:29,732 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2018-11-10 13:35:29,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 13:35:29,732 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2018-11-10 13:35:29,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 13:35:29,733 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:35:29,733 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:35:29,733 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:35:29,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:35:29,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1883902620, now seen corresponding path program 1 times [2018-11-10 13:35:29,734 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:35:29,734 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-10 13:35:29,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:35:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:35:29,797 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:35:29,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:35:29,918 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:35:29,926 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:35:29,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 13:35:29,928 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 13:35:29,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 13:35:29,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 13:35:29,928 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 7 states. [2018-11-10 13:35:30,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:35:30,256 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2018-11-10 13:35:30,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 13:35:30,257 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-10 13:35:30,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:35:30,259 INFO L225 Difference]: With dead ends: 51 [2018-11-10 13:35:30,259 INFO L226 Difference]: Without dead ends: 35 [2018-11-10 13:35:30,260 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-10 13:35:30,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-10 13:35:30,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-11-10 13:35:30,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 13:35:30,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-11-10 13:35:30,263 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 19 [2018-11-10 13:35:30,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:35:30,264 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-11-10 13:35:30,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 13:35:30,264 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-11-10 13:35:30,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 13:35:30,264 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:35:30,265 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:35:30,265 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:35:30,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:35:30,265 INFO L82 PathProgramCache]: Analyzing trace with hash 407428667, now seen corresponding path program 1 times [2018-11-10 13:35:30,266 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:35:30,266 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-10 13:35:30,271 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:35:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:35:30,298 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:35:30,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:35:30,378 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:35:30,385 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:35:30,385 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 13:35:30,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 13:35:30,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 13:35:30,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 13:35:30,386 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 7 states. [2018-11-10 13:35:30,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:35:30,712 INFO L93 Difference]: Finished difference Result 53 states and 56 transitions. [2018-11-10 13:35:30,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 13:35:30,713 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-10 13:35:30,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:35:30,714 INFO L225 Difference]: With dead ends: 53 [2018-11-10 13:35:30,714 INFO L226 Difference]: Without dead ends: 32 [2018-11-10 13:35:30,715 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-11-10 13:35:30,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-10 13:35:30,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-10 13:35:30,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-10 13:35:30,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2018-11-10 13:35:30,719 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 20 [2018-11-10 13:35:30,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:35:30,719 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2018-11-10 13:35:30,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 13:35:30,719 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2018-11-10 13:35:30,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 13:35:30,720 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:35:30,720 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:35:30,720 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:35:30,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:35:30,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1907366819, now seen corresponding path program 1 times [2018-11-10 13:35:30,721 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:35:30,721 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-10 13:35:30,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:35:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:35:30,762 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:35:30,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:35:30,836 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:35:30,843 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:35:30,843 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 13:35:30,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 13:35:30,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 13:35:30,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 13:35:30,844 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 7 states. [2018-11-10 13:35:31,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:35:31,037 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2018-11-10 13:35:31,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 13:35:31,038 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-10 13:35:31,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:35:31,039 INFO L225 Difference]: With dead ends: 50 [2018-11-10 13:35:31,039 INFO L226 Difference]: Without dead ends: 32 [2018-11-10 13:35:31,039 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-11-10 13:35:31,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-10 13:35:31,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-10 13:35:31,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-10 13:35:31,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-11-10 13:35:31,042 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 23 [2018-11-10 13:35:31,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:35:31,042 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-11-10 13:35:31,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 13:35:31,042 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-11-10 13:35:31,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 13:35:31,043 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:35:31,043 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:35:31,043 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:35:31,043 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:35:31,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1994573467, now seen corresponding path program 1 times [2018-11-10 13:35:31,043 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:35:31,044 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-10 13:35:31,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:35:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:35:31,079 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:35:31,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:35:31,147 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:35:31,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:35:31,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 13:35:31,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 13:35:31,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 13:35:31,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 13:35:31,158 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 7 states. [2018-11-10 13:35:31,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:35:31,244 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2018-11-10 13:35:31,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 13:35:31,244 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-10 13:35:31,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:35:31,245 INFO L225 Difference]: With dead ends: 35 [2018-11-10 13:35:31,245 INFO L226 Difference]: Without dead ends: 32 [2018-11-10 13:35:31,246 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-10 13:35:31,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-10 13:35:31,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-10 13:35:31,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-10 13:35:31,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 31 transitions. [2018-11-10 13:35:31,249 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 31 transitions. Word has length 23 [2018-11-10 13:35:31,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:35:31,249 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 31 transitions. [2018-11-10 13:35:31,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 13:35:31,249 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2018-11-10 13:35:31,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-10 13:35:31,250 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:35:31,250 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:35:31,250 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:35:31,252 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:35:31,252 INFO L82 PathProgramCache]: Analyzing trace with hash -123559228, now seen corresponding path program 1 times [2018-11-10 13:35:31,252 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:35:31,253 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-10 13:35:31,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:35:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:35:31,300 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:35:31,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:35:31,585 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:35:31,592 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:35:31,592 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-10 13:35:31,592 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-10 13:35:31,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-10 13:35:31,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-11-10 13:35:31,593 INFO L87 Difference]: Start difference. First operand 32 states and 31 transitions. Second operand 15 states. [2018-11-10 13:35:32,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:35:32,192 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2018-11-10 13:35:32,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-10 13:35:32,193 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 31 [2018-11-10 13:35:32,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:35:32,193 INFO L225 Difference]: With dead ends: 32 [2018-11-10 13:35:32,193 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 13:35:32,194 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2018-11-10 13:35:32,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 13:35:32,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 13:35:32,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 13:35:32,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 13:35:32,195 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-11-10 13:35:32,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:35:32,195 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 13:35:32,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-10 13:35:32,195 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 13:35:32,195 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 13:35:32,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 13:35:32,256 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:35:32,256 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:35:32,256 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:35:32,257 INFO L428 ceAbstractionStarter]: At program point round_floatENTRY(lines 12 53) the Hoare annotation is: true [2018-11-10 13:35:32,257 INFO L425 ceAbstractionStarter]: For program point L33(lines 33 35) no Hoare annotation was computed. [2018-11-10 13:35:32,257 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 46) no Hoare annotation was computed. [2018-11-10 13:35:32,257 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2018-11-10 13:35:32,257 INFO L421 ceAbstractionStarter]: At program point L17-3(lines 17 21) the Hoare annotation is: (= round_float_~x |round_float_#in~x|) [2018-11-10 13:35:32,257 INFO L425 ceAbstractionStarter]: For program point L17-4(lines 17 21) no Hoare annotation was computed. [2018-11-10 13:35:32,257 INFO L425 ceAbstractionStarter]: For program point round_floatFINAL(lines 12 53) no Hoare annotation was computed. [2018-11-10 13:35:32,257 INFO L425 ceAbstractionStarter]: For program point round_floatEXIT(lines 12 53) no Hoare annotation was computed. [2018-11-10 13:35:32,257 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-11-10 13:35:32,258 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 39) no Hoare annotation was computed. [2018-11-10 13:35:32,259 INFO L425 ceAbstractionStarter]: For program point L47(lines 47 51) no Hoare annotation was computed. [2018-11-10 13:35:32,259 INFO L425 ceAbstractionStarter]: For program point L47-2(lines 12 53) no Hoare annotation was computed. [2018-11-10 13:35:32,259 INFO L425 ceAbstractionStarter]: For program point L47-3(lines 47 51) no Hoare annotation was computed. [2018-11-10 13:35:32,259 INFO L425 ceAbstractionStarter]: For program point L41(lines 41 45) no Hoare annotation was computed. [2018-11-10 13:35:32,259 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:35:32,259 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 13:35:32,259 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:35:32,259 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:35:32,260 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 67 85) the Hoare annotation is: true [2018-11-10 13:35:32,260 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 67 85) no Hoare annotation was computed. [2018-11-10 13:35:32,260 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2018-11-10 13:35:32,260 INFO L425 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-11-10 13:35:32,260 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-10 13:35:32,260 INFO L421 ceAbstractionStarter]: At program point L79-1(line 79) the Hoare annotation is: (and |main_#t~short8| (exists ((v_round_float_~w~0_14 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) v_round_float_~w~0_14) ((_ extract 30 23) v_round_float_~w~0_14) ((_ extract 22 0) v_round_float_~w~0_14)) (fp.neg (_ +zero 8 24))) (= (let ((.cse0 (bvand v_round_float_~w~0_14 (_ bv2147483648 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) main_~res~0))) (= main_~x~0 (fp.neg (_ +zero 8 24)))) [2018-11-10 13:35:32,260 INFO L425 ceAbstractionStarter]: For program point L79-2(line 79) no Hoare annotation was computed. [2018-11-10 13:35:32,260 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 67 85) no Hoare annotation was computed. [2018-11-10 13:35:32,261 INFO L421 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (= main_~x~0 (fp.neg (_ +zero 8 24))) [2018-11-10 13:35:32,261 INFO L425 ceAbstractionStarter]: For program point L76-1(line 76) no Hoare annotation was computed. [2018-11-10 13:35:32,261 INFO L425 ceAbstractionStarter]: For program point L79-4(lines 79 82) no Hoare annotation was computed. [2018-11-10 13:35:32,261 INFO L425 ceAbstractionStarter]: For program point L58-1(lines 58 62) no Hoare annotation was computed. [2018-11-10 13:35:32,261 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 55 65) no Hoare annotation was computed. [2018-11-10 13:35:32,261 INFO L421 ceAbstractionStarter]: At program point L58-3(lines 58 62) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-11-10 13:35:32,261 INFO L425 ceAbstractionStarter]: For program point L58-4(lines 58 62) no Hoare annotation was computed. [2018-11-10 13:35:32,261 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 55 65) the Hoare annotation is: true [2018-11-10 13:35:32,261 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 55 65) no Hoare annotation was computed. [2018-11-10 13:35:32,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:35:32 BoogieIcfgContainer [2018-11-10 13:35:32,270 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:35:32,271 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:35:32,271 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:35:32,271 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:35:32,271 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:35:29" (3/4) ... [2018-11-10 13:35:32,274 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 13:35:32,278 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 13:35:32,278 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure round_float [2018-11-10 13:35:32,278 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 13:35:32,278 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-10 13:35:32,283 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2018-11-10 13:35:32,283 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2018-11-10 13:35:32,283 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 13:35:32,302 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-10 13:35:32,302 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-10 13:35:32,323 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_367ee863-ac79-401e-b987-a37e007d97af/bin-2019/utaipan/witness.graphml [2018-11-10 13:35:32,323 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:35:32,324 INFO L168 Benchmark]: Toolchain (without parser) took 3386.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 949.2 MB in the beginning and 845.0 MB in the end (delta: 104.3 MB). Peak memory consumption was 250.5 MB. Max. memory is 11.5 GB. [2018-11-10 13:35:32,325 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:35:32,326 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.63 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 13:35:32,326 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.62 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:35:32,326 INFO L168 Benchmark]: Boogie Preprocessor took 25.16 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:35:32,326 INFO L168 Benchmark]: RCFGBuilder took 358.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -184.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:35:32,327 INFO L168 Benchmark]: TraceAbstraction took 2736.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 851.7 MB in the end (delta: 265.7 MB). Peak memory consumption was 265.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:35:32,327 INFO L168 Benchmark]: Witness Printer took 52.91 ms. Allocated memory is still 1.2 GB. Free memory was 851.7 MB in the beginning and 845.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-10 13:35:32,329 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 178.63 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.62 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.16 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 358.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -184.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2736.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 851.7 MB in the end (delta: 265.7 MB). Peak memory consumption was 265.7 MB. Max. memory is 11.5 GB. * Witness Printer took 52.91 ms. Allocated memory is still 1.2 GB. Free memory was 851.7 MB in the beginning and 845.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: 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 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. SAFE Result, 2.6s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 168 SDtfs, 124 SDslu, 630 SDs, 0 SdLazy, 310 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 18 PreInvPairs, 21 NumberOfFragments, 49 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 128 ConstructedInterpolants, 35 QuantifiedInterpolants, 23109 SizeOfPredicates, 63 NumberOfNonLiveVariables, 487 ConjunctsInSsa, 73 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...