./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1072b_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_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/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 fd8d3d35d33d053f2e3c181cc7c34f9c77c4e005 ............................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/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 fd8d3d35d33d053f2e3c181cc7c34f9c77c4e005 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:44:40,580 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:44:40,581 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:44:40,590 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:44:40,590 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:44:40,591 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:44:40,592 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:44:40,594 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:44:40,595 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:44:40,595 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:44:40,596 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:44:40,597 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:44:40,597 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:44:40,598 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:44:40,599 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:44:40,600 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:44:40,601 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:44:40,602 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:44:40,604 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:44:40,605 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:44:40,606 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:44:40,607 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:44:40,609 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:44:40,609 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:44:40,610 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:44:40,610 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:44:40,611 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:44:40,612 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:44:40,613 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:44:40,613 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:44:40,614 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:44:40,614 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:44:40,614 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:44:40,614 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:44:40,615 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:44:40,617 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:44:40,617 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-27 00:44:40,628 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:44:40,628 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:44:40,629 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:44:40,629 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:44:40,629 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:44:40,629 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:44:40,629 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 00:44:40,630 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:44:40,630 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 00:44:40,630 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 00:44:40,630 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:44:40,631 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:44:40,631 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:44:40,631 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:44:40,631 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:44:40,631 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:44:40,631 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:44:40,631 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:44:40,633 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:44:40,633 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:44:40,633 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:44:40,633 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:44:40,634 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:44:40,634 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:44:40,634 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:44:40,634 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:44:40,634 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:44:40,634 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:44:40,635 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:44:40,635 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:44:40,635 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 00:44:40,635 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:44:40,635 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:44:40,635 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 00:44:40,635 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_02bcd292-e5f9-4312-a67b-b5146a99b5c9/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 -> fd8d3d35d33d053f2e3c181cc7c34f9c77c4e005 [2018-10-27 00:44:40,663 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:44:40,673 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:44:40,676 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:44:40,677 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:44:40,677 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:44:40,678 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1072b_true-unreach-call.c [2018-10-27 00:44:40,726 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/data/8c2c195f6/88817171721b4816bbb2cbc465839da4/FLAG100c8e42a [2018-10-27 00:44:41,107 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:44:41,108 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/sv-benchmarks/c/float-newlib/float_req_bl_1072b_true-unreach-call.c [2018-10-27 00:44:41,114 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/data/8c2c195f6/88817171721b4816bbb2cbc465839da4/FLAG100c8e42a [2018-10-27 00:44:41,124 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/data/8c2c195f6/88817171721b4816bbb2cbc465839da4 [2018-10-27 00:44:41,127 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:44:41,128 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:44:41,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:44:41,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:44:41,132 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:44:41,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:44:41" (1/1) ... [2018-10-27 00:44:41,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2081235f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:41, skipping insertion in model container [2018-10-27 00:44:41,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:44:41" (1/1) ... [2018-10-27 00:44:41,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:44:41,162 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:44:41,290 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:44:41,293 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:44:41,312 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:44:41,328 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:44:41,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:41 WrapperNode [2018-10-27 00:44:41,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:44:41,329 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:44:41,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:44:41,329 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:44:41,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:41" (1/1) ... [2018-10-27 00:44:41,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:41" (1/1) ... [2018-10-27 00:44:41,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:44:41,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:44:41,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:44:41,369 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:44:41,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:41" (1/1) ... [2018-10-27 00:44:41,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:41" (1/1) ... [2018-10-27 00:44:41,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:41" (1/1) ... [2018-10-27 00:44:41,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:41" (1/1) ... [2018-10-27 00:44:41,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:41" (1/1) ... [2018-10-27 00:44:41,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:41" (1/1) ... [2018-10-27 00:44:41,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:41" (1/1) ... [2018-10-27 00:44:41,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:44:41,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:44:41,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:44:41,422 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:44:41,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:44:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:44:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:44:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:44:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:44:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-10-27 00:44:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-10-27 00:44:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:44:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:44:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-10-27 00:44:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-10-27 00:44:42,163 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:44:42,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:44:42 BoogieIcfgContainer [2018-10-27 00:44:42,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:44:42,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:44:42,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:44:42,167 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:44:42,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:44:41" (1/3) ... [2018-10-27 00:44:42,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e629e8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:44:42, skipping insertion in model container [2018-10-27 00:44:42,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:41" (2/3) ... [2018-10-27 00:44:42,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e629e8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:44:42, skipping insertion in model container [2018-10-27 00:44:42,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:44:42" (3/3) ... [2018-10-27 00:44:42,170 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072b_true-unreach-call.c [2018-10-27 00:44:42,178 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:44:42,185 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:44:42,196 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:44:42,222 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:44:42,222 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:44:42,222 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:44:42,222 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:44:42,222 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:44:42,223 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:44:42,223 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:44:42,223 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:44:42,237 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-10-27 00:44:42,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-27 00:44:42,242 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:44:42,242 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] [2018-10-27 00:44:42,244 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:44:42,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:44:42,249 INFO L82 PathProgramCache]: Analyzing trace with hash 2137295797, now seen corresponding path program 1 times [2018-10-27 00:44:42,251 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:44:42,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:44:42,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:44:42,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:44:42,288 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:44:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:44:42,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:44:42,356 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:44:42,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 00:44:42,356 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:44:42,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 00:44:42,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 00:44:42,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:44:42,370 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-10-27 00:44:42,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:44:42,387 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2018-10-27 00:44:42,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 00:44:42,388 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-10-27 00:44:42,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:44:42,395 INFO L225 Difference]: With dead ends: 66 [2018-10-27 00:44:42,395 INFO L226 Difference]: Without dead ends: 33 [2018-10-27 00:44:42,397 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 [2018-10-27 00:44:42,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-10-27 00:44:42,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-10-27 00:44:42,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-10-27 00:44:42,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2018-10-27 00:44:42,423 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 24 [2018-10-27 00:44:42,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:44:42,423 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2018-10-27 00:44:42,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 00:44:42,423 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-10-27 00:44:42,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-27 00:44:42,424 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:44:42,424 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] [2018-10-27 00:44:42,424 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:44:42,425 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:44:42,425 INFO L82 PathProgramCache]: Analyzing trace with hash 428472476, now seen corresponding path program 1 times [2018-10-27 00:44:42,425 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:44:42,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:44:42,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:44:42,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:44:42,426 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:44:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 00:44:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 00:44:42,566 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-27 00:44:42,579 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:44:42,580 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:44:42,580 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:44:42,580 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:44:42,581 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:44:42,581 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:44:42,581 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:44:42,581 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:44:42,582 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:44:42,582 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:44:42,582 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:44:42,582 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:44:42,582 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:44:42,583 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:44:42,583 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:44:42,583 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:44:42,583 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:44:42,584 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:44:42,584 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:44:42,584 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:44:42,585 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:44:42,585 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:44:42,585 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:44:42,585 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:44:42,586 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:44:42,586 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:44:42,586 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:44:42,586 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:44:42,587 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:44:42,587 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:44:42,587 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:44:42,587 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:44:42,588 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:44:42,588 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:44:42,588 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:44:42,588 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:44:42,589 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:44:42,589 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:44:42,589 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:44:42,589 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:44:42,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:44:42 BoogieIcfgContainer [2018-10-27 00:44:42,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:44:42,610 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:44:42,611 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:44:42,611 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:44:42,611 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:44:42" (3/4) ... [2018-10-27 00:44:42,614 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 00:44:42,615 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:44:42,615 INFO L168 Benchmark]: Toolchain (without parser) took 1488.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 962.3 MB in the beginning and 1.1 GB in the end (delta: -140.7 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:44:42,617 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:44:42,618 INFO L168 Benchmark]: CACSL2BoogieTranslator took 200.18 ms. Allocated memory is still 1.0 GB. Free memory was 962.3 MB in the beginning and 951.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:44:42,618 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.55 ms. Allocated memory is still 1.0 GB. Free memory was 951.6 MB in the beginning and 946.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:44:42,619 INFO L168 Benchmark]: Boogie Preprocessor took 52.34 ms. Allocated memory is still 1.0 GB. Free memory is still 946.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:44:42,619 INFO L168 Benchmark]: RCFGBuilder took 742.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -190.1 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2018-10-27 00:44:42,621 INFO L168 Benchmark]: TraceAbstraction took 445.64 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-10-27 00:44:42,621 INFO L168 Benchmark]: Witness Printer took 4.18 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:44:42,625 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 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 200.18 ms. Allocated memory is still 1.0 GB. Free memory was 962.3 MB in the beginning and 951.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.55 ms. Allocated memory is still 1.0 GB. Free memory was 951.6 MB in the beginning and 946.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.34 ms. Allocated memory is still 1.0 GB. Free memory is still 946.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 742.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -190.1 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 445.64 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.18 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.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 - 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.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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 66]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of bitwiseAnd at line 50. Possible FailurePath: [L61] float x = -1.0f / 0.0f; [L62] CALL, EXPR trunc_float(x) [L12] __int32_t signbit, w, exponent_less_127; [L14] CALL ieee_float_shape_type gf_u; [L14] RET ieee_float_shape_type gf_u; [L15] CALL gf_u.value = (x) [L15] RET gf_u.value = (x) [L16] CALL, EXPR gf_u.word [L16] RET, EXPR gf_u.word [L16] (w) = gf_u.word [L16] RET (w) = gf_u.word [L17] COND FALSE !(0) [L18] signbit = w & 0x80000000 [L19] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 [L20] COND FALSE !(exponent_less_127 < 23) [L36] COND TRUE exponent_less_127 == 255 [L37] RET return x + x; [L62] EXPR trunc_float(x) VAL [trunc_float(x)=10737418241, x=10737418247] [L62] float res = trunc_float(x); [L65] CALL, EXPR isinf_float(res) [L44] __int32_t ix; [L46] CALL ieee_float_shape_type gf_u; [L46] RET ieee_float_shape_type gf_u; [L47] CALL gf_u.value = (x) [L47] RET gf_u.value = (x) [L48] CALL, EXPR gf_u.word [L48] RET, EXPR gf_u.word [L48] (ix) = gf_u.word [L48] RET (ix) = gf_u.word [L49] COND FALSE !(0) [L50] ix &= 0x7fffffff [L51] RET return ((ix) == 0x7f800000L); [L65] EXPR isinf_float(res) VAL [isinf_float(res)=0, res=10737418241, x=10737418247] [L65] COND TRUE !isinf_float(res) [L66] __VERIFIER_error() VAL [res=10737418241, x=10737418247] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 37 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 39 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=37occurred 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, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 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 [2018-10-27 00:44:44,501 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:44:44,505 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:44:44,517 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:44:44,517 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:44:44,518 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:44:44,519 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:44:44,522 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:44:44,524 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:44:44,526 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:44:44,528 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:44:44,528 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:44:44,529 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:44:44,530 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:44:44,530 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:44:44,531 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:44:44,534 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:44:44,536 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:44:44,537 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:44:44,538 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:44:44,539 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:44:44,550 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:44:44,552 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:44:44,552 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:44:44,552 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:44:44,553 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:44:44,553 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:44:44,554 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:44:44,554 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:44:44,555 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:44:44,555 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:44:44,559 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:44:44,559 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:44:44,560 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:44:44,560 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:44:44,561 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:44:44,561 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-27 00:44:44,583 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:44:44,583 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:44:44,584 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:44:44,584 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:44:44,584 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:44:44,584 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:44:44,584 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:44:44,585 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:44:44,585 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:44:44,585 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:44:44,585 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:44:44,585 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:44:44,586 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:44:44,586 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:44:44,586 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:44:44,586 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-27 00:44:44,586 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-27 00:44:44,586 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:44:44,586 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:44:44,587 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:44:44,587 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:44:44,587 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:44:44,587 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:44:44,587 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:44:44,587 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:44:44,590 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:44:44,590 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:44:44,590 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:44:44,591 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-27 00:44:44,591 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:44:44,591 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-27 00:44:44,591 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-27 00:44:44,591 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_02bcd292-e5f9-4312-a67b-b5146a99b5c9/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 -> fd8d3d35d33d053f2e3c181cc7c34f9c77c4e005 [2018-10-27 00:44:44,632 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:44:44,646 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:44:44,650 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:44:44,651 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:44:44,652 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:44:44,652 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1072b_true-unreach-call.c [2018-10-27 00:44:44,696 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/data/33debf905/ca996a5620364055961cd20683e4c3d5/FLAG6a59491b3 [2018-10-27 00:44:45,073 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:44:45,073 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/sv-benchmarks/c/float-newlib/float_req_bl_1072b_true-unreach-call.c [2018-10-27 00:44:45,079 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/data/33debf905/ca996a5620364055961cd20683e4c3d5/FLAG6a59491b3 [2018-10-27 00:44:45,091 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/data/33debf905/ca996a5620364055961cd20683e4c3d5 [2018-10-27 00:44:45,093 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:44:45,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:44:45,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:44:45,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:44:45,098 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:44:45,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:44:45" (1/1) ... [2018-10-27 00:44:45,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4b968a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:45, skipping insertion in model container [2018-10-27 00:44:45,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:44:45" (1/1) ... [2018-10-27 00:44:45,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:44:45,126 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:44:45,256 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:44:45,260 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:44:45,282 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:44:45,303 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:44:45,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:45 WrapperNode [2018-10-27 00:44:45,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:44:45,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:44:45,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:44:45,304 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:44:45,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:45" (1/1) ... [2018-10-27 00:44:45,321 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:45" (1/1) ... [2018-10-27 00:44:45,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:44:45,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:44:45,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:44:45,343 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:44:45,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:45" (1/1) ... [2018-10-27 00:44:45,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:45" (1/1) ... [2018-10-27 00:44:45,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:45" (1/1) ... [2018-10-27 00:44:45,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:45" (1/1) ... [2018-10-27 00:44:45,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:45" (1/1) ... [2018-10-27 00:44:45,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:45" (1/1) ... [2018-10-27 00:44:45,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:45" (1/1) ... [2018-10-27 00:44:45,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:44:45,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:44:45,371 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:44:45,371 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:44:45,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:44:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:44:45,498 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:44:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:44:45,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:44:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-10-27 00:44:45,499 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-10-27 00:44:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:44:45,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:44:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-10-27 00:44:45,499 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-10-27 00:44:45,772 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 00:44:45,878 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 00:44:46,057 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:44:46,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:44:46 BoogieIcfgContainer [2018-10-27 00:44:46,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:44:46,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:44:46,058 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:44:46,059 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:44:46,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:44:45" (1/3) ... [2018-10-27 00:44:46,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70359216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:44:46, skipping insertion in model container [2018-10-27 00:44:46,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:44:45" (2/3) ... [2018-10-27 00:44:46,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70359216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:44:46, skipping insertion in model container [2018-10-27 00:44:46,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:44:46" (3/3) ... [2018-10-27 00:44:46,065 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072b_true-unreach-call.c [2018-10-27 00:44:46,074 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:44:46,085 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:44:46,096 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:44:46,122 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 00:44:46,123 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:44:46,123 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:44:46,123 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:44:46,124 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:44:46,124 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:44:46,124 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:44:46,124 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:44:46,124 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:44:46,142 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-10-27 00:44:46,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-27 00:44:46,147 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:44:46,148 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] [2018-10-27 00:44:46,150 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:44:46,155 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:44:46,155 INFO L82 PathProgramCache]: Analyzing trace with hash 2111365157, now seen corresponding path program 1 times [2018-10-27 00:44:46,158 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:44:46,159 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-27 00:44:46,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:44:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:44:46,240 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:44:46,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:44:46,257 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:44:46,270 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:44:46,270 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 00:44:46,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 00:44:46,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 00:44:46,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:44:46,282 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-10-27 00:44:46,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:44:46,299 INFO L93 Difference]: Finished difference Result 64 states and 87 transitions. [2018-10-27 00:44:46,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 00:44:46,300 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-10-27 00:44:46,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:44:46,307 INFO L225 Difference]: With dead ends: 64 [2018-10-27 00:44:46,307 INFO L226 Difference]: Without dead ends: 32 [2018-10-27 00:44:46,310 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:44:46,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-10-27 00:44:46,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-10-27 00:44:46,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-10-27 00:44:46,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2018-10-27 00:44:46,343 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 23 [2018-10-27 00:44:46,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:44:46,343 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2018-10-27 00:44:46,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 00:44:46,344 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2018-10-27 00:44:46,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-27 00:44:46,345 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:44:46,345 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] [2018-10-27 00:44:46,346 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:44:46,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:44:46,346 INFO L82 PathProgramCache]: Analyzing trace with hash 340228539, now seen corresponding path program 1 times [2018-10-27 00:44:46,347 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:44:46,347 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-27 00:44:46,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-10-27 00:44:46,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:44:46,427 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:44:46,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:44:46,590 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:44:46,601 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:44:46,601 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 00:44:46,603 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 00:44:46,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 00:44:46,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-27 00:44:46,603 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand 6 states. [2018-10-27 00:44:46,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:44:46,943 INFO L93 Difference]: Finished difference Result 48 states and 49 transitions. [2018-10-27 00:44:46,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:44:46,945 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-10-27 00:44:46,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:44:46,947 INFO L225 Difference]: With dead ends: 48 [2018-10-27 00:44:46,947 INFO L226 Difference]: Without dead ends: 35 [2018-10-27 00:44:46,948 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-10-27 00:44:46,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-10-27 00:44:46,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2018-10-27 00:44:46,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-10-27 00:44:46,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2018-10-27 00:44:46,955 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 25 [2018-10-27 00:44:46,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:44:46,955 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2018-10-27 00:44:46,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 00:44:46,956 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2018-10-27 00:44:46,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-27 00:44:46,957 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:44:46,957 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] [2018-10-27 00:44:46,957 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:44:46,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:44:46,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1691239600, now seen corresponding path program 1 times [2018-10-27 00:44:46,958 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:44:46,958 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/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 [2018-10-27 00:44:46,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:44:47,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:44:47,030 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:44:47,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:44:47,573 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:44:47,584 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:44:47,584 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-10-27 00:44:47,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-27 00:44:47,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-27 00:44:47,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-10-27 00:44:47,585 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 11 states. [2018-10-27 00:44:48,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:44:48,016 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-10-27 00:44:48,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-27 00:44:48,017 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-10-27 00:44:48,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:44:48,017 INFO L225 Difference]: With dead ends: 40 [2018-10-27 00:44:48,017 INFO L226 Difference]: Without dead ends: 31 [2018-10-27 00:44:48,018 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-10-27 00:44:48,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-10-27 00:44:48,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-10-27 00:44:48,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-10-27 00:44:48,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-10-27 00:44:48,029 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 26 [2018-10-27 00:44:48,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:44:48,029 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-10-27 00:44:48,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-27 00:44:48,029 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-10-27 00:44:48,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-27 00:44:48,030 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:44:48,030 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] [2018-10-27 00:44:48,030 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:44:48,031 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:44:48,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1613159138, now seen corresponding path program 1 times [2018-10-27 00:44:48,031 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:44:48,033 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/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 [2018-10-27 00:44:48,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:44:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:44:48,126 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:44:48,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:44:48,417 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:44:48,429 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:44:48,429 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-27 00:44:48,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 00:44:48,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 00:44:48,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-27 00:44:48,430 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 7 states. [2018-10-27 00:44:48,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:44:48,703 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-10-27 00:44:48,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 00:44:48,704 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2018-10-27 00:44:48,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:44:48,704 INFO L225 Difference]: With dead ends: 31 [2018-10-27 00:44:48,704 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 00:44:48,705 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-27 00:44:48,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 00:44:48,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 00:44:48,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 00:44:48,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 00:44:48,705 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-10-27 00:44:48,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:44:48,705 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 00:44:48,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 00:44:48,706 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 00:44:48,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 00:44:48,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 00:44:48,929 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:44:48,929 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:44:48,929 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:44:48,930 INFO L428 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 43 52) the Hoare annotation is: true [2018-10-27 00:44:48,930 INFO L425 ceAbstractionStarter]: For program point L45-1(lines 45 49) no Hoare annotation was computed. [2018-10-27 00:44:48,930 INFO L421 ceAbstractionStarter]: At program point L45-3(lines 45 49) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-10-27 00:44:48,930 INFO L425 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 43 52) no Hoare annotation was computed. [2018-10-27 00:44:48,930 INFO L425 ceAbstractionStarter]: For program point L45-4(lines 45 49) no Hoare annotation was computed. [2018-10-27 00:44:48,930 INFO L425 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 43 52) no Hoare annotation was computed. [2018-10-27 00:44:48,930 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:44:48,930 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-27 00:44:48,930 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:44:48,930 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:44:48,931 INFO L421 ceAbstractionStarter]: At program point L65(line 65) the Hoare annotation is: (let ((.cse0 (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= .cse0 main_~res~0))) [2018-10-27 00:44:48,931 INFO L425 ceAbstractionStarter]: For program point L65-1(lines 65 68) no Hoare annotation was computed. [2018-10-27 00:44:48,931 INFO L421 ceAbstractionStarter]: At program point L62(line 62) the Hoare annotation is: (= (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)) main_~x~0) [2018-10-27 00:44:48,931 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 66) no Hoare annotation was computed. [2018-10-27 00:44:48,931 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 54 71) the Hoare annotation is: true [2018-10-27 00:44:48,931 INFO L425 ceAbstractionStarter]: For program point L62-1(line 62) no Hoare annotation was computed. [2018-10-27 00:44:48,931 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 54 71) no Hoare annotation was computed. [2018-10-27 00:44:48,931 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 54 71) no Hoare annotation was computed. [2018-10-27 00:44:48,932 INFO L425 ceAbstractionStarter]: For program point L66(line 66) no Hoare annotation was computed. [2018-10-27 00:44:48,932 INFO L425 ceAbstractionStarter]: For program point L23-1(lines 23 27) no Hoare annotation was computed. [2018-10-27 00:44:48,932 INFO L421 ceAbstractionStarter]: At program point L23-3(lines 23 27) the Hoare annotation is: (and (= trunc_float_~x |trunc_float_#in~x|) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd trunc_float_~exponent_less_127~0 (_ bv127 32)) (bvashr (bvand trunc_float_~w~0 (_ bv2139095040 32)) (_ bv23 32))))) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (bvslt (bvadd (bvashr (bvand trunc_float_~w~0 (_ bv2139095040 32)) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32))))) [2018-10-27 00:44:48,932 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 37) no Hoare annotation was computed. [2018-10-27 00:44:48,932 INFO L425 ceAbstractionStarter]: For program point trunc_floatFINAL(lines 11 40) no Hoare annotation was computed. [2018-10-27 00:44:48,932 INFO L425 ceAbstractionStarter]: For program point L20(lines 20 38) no Hoare annotation was computed. [2018-10-27 00:44:48,932 INFO L425 ceAbstractionStarter]: For program point L20-1(lines 20 38) no Hoare annotation was computed. [2018-10-27 00:44:48,932 INFO L425 ceAbstractionStarter]: For program point L29-1(lines 29 33) no Hoare annotation was computed. [2018-10-27 00:44:48,933 INFO L421 ceAbstractionStarter]: At program point L29-3(lines 29 33) the Hoare annotation is: (and (= trunc_float_~x |trunc_float_#in~x|) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd trunc_float_~exponent_less_127~0 (_ bv127 32)) (bvashr (bvand trunc_float_~w~0 (_ bv2139095040 32)) (_ bv23 32))))) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (bvslt (bvadd (bvashr (bvand trunc_float_~w~0 (_ bv2139095040 32)) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32))))) [2018-10-27 00:44:48,933 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 34) no Hoare annotation was computed. [2018-10-27 00:44:48,933 INFO L428 ceAbstractionStarter]: At program point trunc_floatENTRY(lines 11 40) the Hoare annotation is: true [2018-10-27 00:44:48,933 INFO L425 ceAbstractionStarter]: For program point L13-1(lines 13 17) no Hoare annotation was computed. [2018-10-27 00:44:48,933 INFO L421 ceAbstractionStarter]: At program point L13-3(lines 13 17) the Hoare annotation is: (= trunc_float_~x |trunc_float_#in~x|) [2018-10-27 00:44:48,933 INFO L425 ceAbstractionStarter]: For program point L13-4(lines 13 17) no Hoare annotation was computed. [2018-10-27 00:44:48,933 INFO L425 ceAbstractionStarter]: For program point trunc_floatEXIT(lines 11 40) no Hoare annotation was computed. [2018-10-27 00:44:48,945 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,946 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,946 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,946 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,946 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,947 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,947 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,947 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,949 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,949 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,949 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,950 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,950 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,950 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,950 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,950 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,951 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,951 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,951 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,951 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,952 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,952 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,952 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,952 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,953 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,953 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,953 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,953 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,953 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,954 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,954 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,954 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:48,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:44:48 BoogieIcfgContainer [2018-10-27 00:44:48,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:44:48,960 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:44:48,960 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:44:48,960 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:44:48,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:44:46" (3/4) ... [2018-10-27 00:44:48,965 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 00:44:48,972 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 00:44:48,972 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-10-27 00:44:48,972 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 00:44:48,972 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure trunc_float [2018-10-27 00:44:48,981 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 66 nodes and edges [2018-10-27 00:44:48,981 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2018-10-27 00:44:48,982 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-10-27 00:44:49,005 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-10-27 00:44:49,005 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-10-27 00:44:49,006 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == \old(x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(exponent_less_127, 127bv32) == ~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32), 4294967169bv32), 23bv32)) [2018-10-27 00:44:49,006 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == \old(x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(exponent_less_127, 127bv32) == ~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32), 4294967169bv32), 23bv32)) [2018-10-27 00:44:49,041 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_02bcd292-e5f9-4312-a67b-b5146a99b5c9/bin-2019/utaipan/witness.graphml [2018-10-27 00:44:49,041 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:44:49,042 INFO L168 Benchmark]: Toolchain (without parser) took 3948.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 951.9 MB in the beginning and 969.9 MB in the end (delta: -18.0 MB). Peak memory consumption was 147.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:44:49,043 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:44:49,044 INFO L168 Benchmark]: CACSL2BoogieTranslator took 208.49 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-27 00:44:49,044 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.29 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:44:49,045 INFO L168 Benchmark]: Boogie Preprocessor took 27.70 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:44:49,045 INFO L168 Benchmark]: RCFGBuilder took 686.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -192.7 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2018-10-27 00:44:49,045 INFO L168 Benchmark]: TraceAbstraction took 2902.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.7 MB in the end (delta: 151.8 MB). Peak memory consumption was 151.8 MB. Max. memory is 11.5 GB. [2018-10-27 00:44:49,046 INFO L168 Benchmark]: Witness Printer took 81.03 ms. Allocated memory is still 1.2 GB. Free memory was 976.7 MB in the beginning and 969.9 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-10-27 00:44:49,050 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 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 208.49 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 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 38.29 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.70 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 686.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -192.7 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2902.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.7 MB in the end (delta: 151.8 MB). Peak memory consumption was 151.8 MB. Max. memory is 11.5 GB. * Witness Printer took 81.03 ms. Allocated memory is still 1.2 GB. Free memory was 976.7 MB in the beginning and 969.9 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 66]: 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: 45]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 23]: Loop Invariant [2018-10-27 00:44:49,054 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,054 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,054 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,054 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,054 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,055 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,055 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,055 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,055 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,068 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,068 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,068 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,068 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,069 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,069 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,069 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((x == \old(x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(exponent_less_127, 127bv32) == ~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32), 4294967169bv32), 23bv32)) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 29]: Loop Invariant [2018-10-27 00:44:49,070 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,070 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,070 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,070 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,070 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,072 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,072 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,073 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,074 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,074 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,074 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,075 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,075 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,075 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,075 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-10-27 00:44:49,075 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((x == \old(x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(exponent_less_127, 127bv32) == ~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32), 4294967169bv32), 23bv32)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 36 locations, 1 error locations. SAFE Result, 2.8s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 101 SDtfs, 74 SDslu, 320 SDs, 0 SdLazy, 135 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 18 PreInvPairs, 23 NumberOfFragments, 146 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 98 ConstructedInterpolants, 11 QuantifiedInterpolants, 11993 SizeOfPredicates, 28 NumberOfNonLiveVariables, 383 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...