./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032d_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_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/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 55e25fd47a6133e138b684ec17fad2c015ceccf7 ............................................................................................................................................................................................................................................................................................................................................................................................................................................ 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_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/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 55e25fd47a6133e138b684ec17fad2c015ceccf7 ....................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 10:55:13,535 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 10:55:13,536 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 10:55:13,545 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 10:55:13,545 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 10:55:13,546 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 10:55:13,547 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 10:55:13,548 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 10:55:13,549 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 10:55:13,549 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 10:55:13,550 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 10:55:13,550 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 10:55:13,551 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 10:55:13,551 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 10:55:13,552 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 10:55:13,553 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 10:55:13,553 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 10:55:13,555 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 10:55:13,556 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 10:55:13,557 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 10:55:13,558 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 10:55:13,558 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 10:55:13,560 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 10:55:13,560 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 10:55:13,560 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 10:55:13,561 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 10:55:13,562 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 10:55:13,562 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 10:55:13,563 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 10:55:13,564 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 10:55:13,564 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 10:55:13,564 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 10:55:13,564 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 10:55:13,565 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 10:55:13,565 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 10:55:13,566 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 10:55:13,566 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 10:55:13,576 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 10:55:13,576 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 10:55:13,577 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 10:55:13,577 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 10:55:13,577 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 10:55:13,577 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 10:55:13,578 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 10:55:13,578 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 10:55:13,578 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 10:55:13,578 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 10:55:13,578 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 10:55:13,579 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 10:55:13,579 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 10:55:13,579 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 10:55:13,579 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 10:55:13,579 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 10:55:13,579 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 10:55:13,579 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 10:55:13,580 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 10:55:13,580 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 10:55:13,580 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 10:55:13,580 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 10:55:13,580 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 10:55:13,580 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 10:55:13,581 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 10:55:13,581 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 10:55:13,581 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 10:55:13,581 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 10:55:13,581 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 10:55:13,581 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 10:55:13,581 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 10:55:13,581 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 10:55:13,582 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 10:55:13,582 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 10:55:13,582 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_09a0268b-aeb9-45c8-9840-17dddb06bc60/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 -> 55e25fd47a6133e138b684ec17fad2c015ceccf7 [2018-11-10 10:55:13,605 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 10:55:13,615 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 10:55:13,617 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 10:55:13,619 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 10:55:13,619 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 10:55:13,620 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1032d_true-unreach-call.c [2018-11-10 10:55:13,664 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/data/4741c620b/f646001a41754b779f768c0f38545e2d/FLAG495e0cdda [2018-11-10 10:55:13,976 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 10:55:13,976 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/sv-benchmarks/c/float-newlib/float_req_bl_1032d_true-unreach-call.c [2018-11-10 10:55:13,982 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/data/4741c620b/f646001a41754b779f768c0f38545e2d/FLAG495e0cdda [2018-11-10 10:55:13,990 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/data/4741c620b/f646001a41754b779f768c0f38545e2d [2018-11-10 10:55:13,992 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 10:55:13,993 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 10:55:13,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 10:55:13,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 10:55:13,996 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 10:55:13,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:55:13" (1/1) ... [2018-11-10 10:55:13,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42349405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:13, skipping insertion in model container [2018-11-10 10:55:13,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:55:13" (1/1) ... [2018-11-10 10:55:14,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 10:55:14,023 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 10:55:14,136 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:55:14,137 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 10:55:14,154 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:55:14,168 INFO L193 MainTranslator]: Completed translation [2018-11-10 10:55:14,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:14 WrapperNode [2018-11-10 10:55:14,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 10:55:14,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 10:55:14,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 10:55:14,169 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 10:55:14,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:14" (1/1) ... [2018-11-10 10:55:14,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:14" (1/1) ... [2018-11-10 10:55:14,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 10:55:14,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 10:55:14,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 10:55:14,196 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 10:55:14,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:14" (1/1) ... [2018-11-10 10:55:14,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:14" (1/1) ... [2018-11-10 10:55:14,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:14" (1/1) ... [2018-11-10 10:55:14,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:14" (1/1) ... [2018-11-10 10:55:14,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:14" (1/1) ... [2018-11-10 10:55:14,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:14" (1/1) ... [2018-11-10 10:55:14,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:14" (1/1) ... [2018-11-10 10:55:14,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 10:55:14,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 10:55:14,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 10:55:14,217 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 10:55:14,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 10:55:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 10:55:14,291 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 10:55:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 10:55:14,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 10:55:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-10 10:55:14,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-10 10:55:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-11-10 10:55:14,292 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-11-10 10:55:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 10:55:14,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 10:55:14,483 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 10:55:14,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:55:14 BoogieIcfgContainer [2018-11-10 10:55:14,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 10:55:14,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 10:55:14,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 10:55:14,486 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 10:55:14,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:55:13" (1/3) ... [2018-11-10 10:55:14,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1162b86f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:55:14, skipping insertion in model container [2018-11-10 10:55:14,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:14" (2/3) ... [2018-11-10 10:55:14,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1162b86f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:55:14, skipping insertion in model container [2018-11-10 10:55:14,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:55:14" (3/3) ... [2018-11-10 10:55:14,488 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032d_true-unreach-call.c [2018-11-10 10:55:14,493 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 10:55:14,498 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 10:55:14,509 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 10:55:14,529 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 10:55:14,529 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 10:55:14,529 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 10:55:14,529 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 10:55:14,529 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 10:55:14,529 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 10:55:14,529 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 10:55:14,529 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 10:55:14,539 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-11-10 10:55:14,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 10:55:14,543 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:55:14,543 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] [2018-11-10 10:55:14,544 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:55:14,547 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:55:14,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1106139469, now seen corresponding path program 1 times [2018-11-10 10:55:14,549 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 10:55:14,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:55:14,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:55:14,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:55:14,584 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 10:55:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:55:14,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:55:14,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:55:14,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 10:55:14,639 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 10:55:14,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 10:55:14,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 10:55:14,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 10:55:14,652 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-11-10 10:55:14,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:55:14,666 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2018-11-10 10:55:14,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 10:55:14,667 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-10 10:55:14,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:55:14,674 INFO L225 Difference]: With dead ends: 66 [2018-11-10 10:55:14,674 INFO L226 Difference]: Without dead ends: 33 [2018-11-10 10:55:14,677 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 10:55:14,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-10 10:55:14,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-10 10:55:14,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 10:55:14,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-11-10 10:55:14,703 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 24 [2018-11-10 10:55:14,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:55:14,703 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-11-10 10:55:14,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 10:55:14,703 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-11-10 10:55:14,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 10:55:14,704 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:55:14,704 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] [2018-11-10 10:55:14,705 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:55:14,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:55:14,705 INFO L82 PathProgramCache]: Analyzing trace with hash 450796287, now seen corresponding path program 1 times [2018-11-10 10:55:14,705 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 10:55:14,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:55:14,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:55:14,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:55:14,712 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 10:55:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:55:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:55:14,805 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 10:55:14,815 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:55:14,815 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:55:14,815 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:55:14,815 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:55:14,816 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:55:14,816 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:55:14,816 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:55:14,816 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:55:14,816 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:55:14,817 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:55:14,817 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:55:14,817 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:55:14,817 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:55:14,817 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:55:14,817 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:55:14,818 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:55:14,818 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:55:14,818 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:55:14,818 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:55:14,818 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:55:14,818 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:55:14,819 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:55:14,819 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:55:14,819 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:55:14,819 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:55:14,819 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:55:14,820 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:55:14,820 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:55:14,820 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:55:14,820 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:55:14,820 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:55:14,821 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:55:14,821 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:55:14,821 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:55:14,821 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:55:14,821 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:55:14,821 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:55:14,822 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:55:14,822 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:55:14,822 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:55:14,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:55:14 BoogieIcfgContainer [2018-11-10 10:55:14,834 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 10:55:14,834 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 10:55:14,835 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 10:55:14,835 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 10:55:14,835 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:55:14" (3/4) ... [2018-11-10 10:55:14,838 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 10:55:14,838 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 10:55:14,839 INFO L168 Benchmark]: Toolchain (without parser) took 846.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 959.8 MB in the beginning and 1.0 GB in the end (delta: -81.0 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. [2018-11-10 10:55:14,840 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:55:14,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.20 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 10:55:14,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.24 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 945.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2018-11-10 10:55:14,842 INFO L168 Benchmark]: Boogie Preprocessor took 20.58 ms. Allocated memory is still 1.0 GB. Free memory was 945.1 MB in the beginning and 942.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 10:55:14,842 INFO L168 Benchmark]: RCFGBuilder took 266.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -144.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-10 10:55:14,843 INFO L168 Benchmark]: TraceAbstraction took 350.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.2 MB). Peak memory consumption was 42.2 MB. Max. memory is 11.5 GB. [2018-11-10 10:55:14,843 INFO L168 Benchmark]: Witness Printer took 3.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-10 10:55:14,846 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 175.20 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 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 27.24 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 945.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.58 ms. Allocated memory is still 1.0 GB. Free memory was 945.1 MB in the beginning and 942.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 266.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -144.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 350.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.2 MB). Peak memory consumption was 42.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.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.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.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.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.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.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 - 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 78]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 42, overapproximation of bitwiseAnd at line 62. Possible FailurePath: [L73] float x = -1.0f / 0.0f; [L74] CALL, EXPR round_float(x) [L12] __uint32_t w; [L14] int exponent_less_127; [L17] CALL ieee_float_shape_type gf_u; [L17] RET ieee_float_shape_type gf_u; [L18] CALL gf_u.value = (x) [L18] RET gf_u.value = (x) [L19] CALL, EXPR gf_u.word [L19] RET, EXPR gf_u.word [L19] (w) = gf_u.word [L19] RET (w) = gf_u.word [L20] COND FALSE !(0) [L22] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L24] COND FALSE !(exponent_less_127 < 23) [L40] COND TRUE exponent_less_127 == 128 [L42] RET return x + x; [L74] EXPR round_float(x) VAL [round_float(x)=6442450946, x=6442450952] [L74] float res = round_float(x); [L77] CALL, EXPR isinf_float(res) [L56] __int32_t ix; [L58] CALL ieee_float_shape_type gf_u; [L58] RET ieee_float_shape_type gf_u; [L59] CALL gf_u.value = (x) [L59] RET gf_u.value = (x) [L60] CALL, EXPR gf_u.word [L60] RET, EXPR gf_u.word [L60] (ix) = gf_u.word [L60] RET (ix) = gf_u.word [L61] COND FALSE !(0) [L62] ix &= 0x7fffffff [L63] RET return ((ix) == 0x7f800000L); [L77] EXPR isinf_float(res) VAL [isinf_float(res)=0, res=6442450946, x=6442450952] [L77] COND TRUE !isinf_float(res) [L78] __VERIFIER_error() VAL [res=6442450946, x=6442450952] - 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: 41 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 [2018-11-10 10:55:16,289 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 10:55:16,291 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 10:55:16,299 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 10:55:16,299 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 10:55:16,300 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 10:55:16,300 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 10:55:16,302 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 10:55:16,303 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 10:55:16,303 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 10:55:16,304 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 10:55:16,304 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 10:55:16,304 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 10:55:16,305 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 10:55:16,306 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 10:55:16,306 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 10:55:16,307 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 10:55:16,308 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 10:55:16,309 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 10:55:16,310 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 10:55:16,311 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 10:55:16,312 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 10:55:16,313 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 10:55:16,313 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 10:55:16,314 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 10:55:16,314 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 10:55:16,315 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 10:55:16,315 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 10:55:16,316 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 10:55:16,317 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 10:55:16,317 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 10:55:16,317 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 10:55:16,317 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 10:55:16,317 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 10:55:16,318 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 10:55:16,318 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 10:55:16,319 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 10:55:16,328 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 10:55:16,329 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 10:55:16,329 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 10:55:16,329 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 10:55:16,329 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 10:55:16,330 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 10:55:16,330 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 10:55:16,330 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 10:55:16,330 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 10:55:16,331 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 10:55:16,331 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 10:55:16,331 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 10:55:16,331 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 10:55:16,331 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 10:55:16,331 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 10:55:16,331 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 10:55:16,331 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 10:55:16,332 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 10:55:16,332 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 10:55:16,332 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 10:55:16,332 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 10:55:16,332 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 10:55:16,332 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 10:55:16,332 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 10:55:16,332 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 10:55:16,333 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 10:55:16,333 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 10:55:16,333 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 10:55:16,333 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 10:55:16,333 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 10:55:16,333 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 10:55:16,333 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 10:55:16,334 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_09a0268b-aeb9-45c8-9840-17dddb06bc60/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 -> 55e25fd47a6133e138b684ec17fad2c015ceccf7 [2018-11-10 10:55:16,362 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 10:55:16,372 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 10:55:16,374 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 10:55:16,376 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 10:55:16,376 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 10:55:16,376 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1032d_true-unreach-call.c [2018-11-10 10:55:16,413 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/data/bb40ff9c4/b481bbf86e9d4669a135e3786ca026bf/FLAG1fa4f5dd8 [2018-11-10 10:55:16,715 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 10:55:16,715 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/sv-benchmarks/c/float-newlib/float_req_bl_1032d_true-unreach-call.c [2018-11-10 10:55:16,720 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/data/bb40ff9c4/b481bbf86e9d4669a135e3786ca026bf/FLAG1fa4f5dd8 [2018-11-10 10:55:16,729 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/data/bb40ff9c4/b481bbf86e9d4669a135e3786ca026bf [2018-11-10 10:55:16,732 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 10:55:16,733 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 10:55:16,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 10:55:16,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 10:55:16,736 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 10:55:16,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:55:16" (1/1) ... [2018-11-10 10:55:16,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18abd360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:16, skipping insertion in model container [2018-11-10 10:55:16,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:55:16" (1/1) ... [2018-11-10 10:55:16,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 10:55:16,759 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 10:55:16,877 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:55:16,880 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 10:55:16,896 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:55:16,914 INFO L193 MainTranslator]: Completed translation [2018-11-10 10:55:16,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:16 WrapperNode [2018-11-10 10:55:16,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 10:55:16,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 10:55:16,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 10:55:16,915 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 10:55:16,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:16" (1/1) ... [2018-11-10 10:55:16,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:16" (1/1) ... [2018-11-10 10:55:16,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 10:55:16,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 10:55:16,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 10:55:16,944 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 10:55:16,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:16" (1/1) ... [2018-11-10 10:55:16,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:16" (1/1) ... [2018-11-10 10:55:16,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:16" (1/1) ... [2018-11-10 10:55:16,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:16" (1/1) ... [2018-11-10 10:55:16,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:16" (1/1) ... [2018-11-10 10:55:16,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:16" (1/1) ... [2018-11-10 10:55:16,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:16" (1/1) ... [2018-11-10 10:55:16,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 10:55:16,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 10:55:16,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 10:55:16,965 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 10:55:16,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 10:55:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 10:55:17,052 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 10:55:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 10:55:17,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 10:55:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-10 10:55:17,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-10 10:55:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-11-10 10:55:17,053 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-11-10 10:55:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 10:55:17,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 10:55:17,162 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 10:55:17,211 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 10:55:17,283 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 10:55:17,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:55:17 BoogieIcfgContainer [2018-11-10 10:55:17,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 10:55:17,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 10:55:17,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 10:55:17,285 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 10:55:17,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:55:16" (1/3) ... [2018-11-10 10:55:17,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1361626d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:55:17, skipping insertion in model container [2018-11-10 10:55:17,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:55:16" (2/3) ... [2018-11-10 10:55:17,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1361626d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:55:17, skipping insertion in model container [2018-11-10 10:55:17,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:55:17" (3/3) ... [2018-11-10 10:55:17,287 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032d_true-unreach-call.c [2018-11-10 10:55:17,293 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 10:55:17,297 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 10:55:17,307 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 10:55:17,324 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 10:55:17,324 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 10:55:17,324 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 10:55:17,324 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 10:55:17,325 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 10:55:17,325 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 10:55:17,325 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 10:55:17,325 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 10:55:17,325 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 10:55:17,334 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-11-10 10:55:17,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 10:55:17,339 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:55:17,340 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:55:17,341 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:55:17,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:55:17,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1818379075, now seen corresponding path program 1 times [2018-11-10 10:55:17,347 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:55:17,347 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-10 10:55:17,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:55:17,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:55:17,403 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:55:17,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:55:17,419 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:55:17,433 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:55:17,433 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 10:55:17,435 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 10:55:17,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 10:55:17,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 10:55:17,444 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-11-10 10:55:17,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:55:17,459 INFO L93 Difference]: Finished difference Result 64 states and 87 transitions. [2018-11-10 10:55:17,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 10:55:17,461 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-10 10:55:17,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:55:17,468 INFO L225 Difference]: With dead ends: 64 [2018-11-10 10:55:17,468 INFO L226 Difference]: Without dead ends: 32 [2018-11-10 10:55:17,471 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 [2018-11-10 10:55:17,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-10 10:55:17,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-10 10:55:17,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-10 10:55:17,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2018-11-10 10:55:17,497 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 23 [2018-11-10 10:55:17,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:55:17,497 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2018-11-10 10:55:17,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 10:55:17,497 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2018-11-10 10:55:17,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 10:55:17,498 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:55:17,498 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] [2018-11-10 10:55:17,500 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:55:17,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:55:17,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1330979923, now seen corresponding path program 1 times [2018-11-10 10:55:17,501 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:55:17,501 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-10 10:55:17,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:55:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:55:17,575 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:55:18,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:55:18,195 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:55:18,202 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:55:18,202 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-10 10:55:18,203 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 10:55:18,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 10:55:18,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-10 10:55:18,204 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 11 states. [2018-11-10 10:55:18,662 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-10 10:55:19,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:55:19,549 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2018-11-10 10:55:19,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 10:55:19,549 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-11-10 10:55:19,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:55:19,551 INFO L225 Difference]: With dead ends: 41 [2018-11-10 10:55:19,551 INFO L226 Difference]: Without dead ends: 34 [2018-11-10 10:55:19,552 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-11-10 10:55:19,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-10 10:55:19,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2018-11-10 10:55:19,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-10 10:55:19,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2018-11-10 10:55:19,560 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 25 [2018-11-10 10:55:19,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:55:19,560 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2018-11-10 10:55:19,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 10:55:19,560 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2018-11-10 10:55:19,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 10:55:19,561 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:55:19,561 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] [2018-11-10 10:55:19,561 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:55:19,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:55:19,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1624382930, now seen corresponding path program 1 times [2018-11-10 10:55:19,562 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:55:19,562 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-10 10:55:19,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:55:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:55:19,609 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:55:19,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:55:19,702 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:55:19,710 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:55:19,710 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 10:55:19,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 10:55:19,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 10:55:19,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 10:55:19,711 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 7 states. [2018-11-10 10:55:20,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:55:20,008 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2018-11-10 10:55:20,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 10:55:20,009 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-11-10 10:55:20,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:55:20,009 INFO L225 Difference]: With dead ends: 34 [2018-11-10 10:55:20,009 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 10:55:20,010 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-11-10 10:55:20,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 10:55:20,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 10:55:20,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 10:55:20,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 10:55:20,010 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-11-10 10:55:20,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:55:20,011 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 10:55:20,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 10:55:20,011 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 10:55:20,011 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 10:55:20,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 10:55:20,061 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 10:55:20,061 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 10:55:20,061 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 10:55:20,061 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2018-11-10 10:55:20,061 INFO L421 ceAbstractionStarter]: At program point L57-3(lines 57 61) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-11-10 10:55:20,061 INFO L425 ceAbstractionStarter]: For program point L57-4(lines 57 61) no Hoare annotation was computed. [2018-11-10 10:55:20,061 INFO L428 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 55 64) the Hoare annotation is: true [2018-11-10 10:55:20,062 INFO L425 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 55 64) no Hoare annotation was computed. [2018-11-10 10:55:20,062 INFO L425 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 55 64) no Hoare annotation was computed. [2018-11-10 10:55:20,062 INFO L428 ceAbstractionStarter]: At program point round_floatENTRY(lines 11 52) the Hoare annotation is: true [2018-11-10 10:55:20,062 INFO L425 ceAbstractionStarter]: For program point L27(lines 27 29) no Hoare annotation was computed. [2018-11-10 10:55:20,062 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 38) no Hoare annotation was computed. [2018-11-10 10:55:20,062 INFO L425 ceAbstractionStarter]: For program point L46(lines 46 50) no Hoare annotation was computed. [2018-11-10 10:55:20,062 INFO L425 ceAbstractionStarter]: For program point L46-2(lines 11 52) no Hoare annotation was computed. [2018-11-10 10:55:20,062 INFO L425 ceAbstractionStarter]: For program point L46-3(lines 46 50) no Hoare annotation was computed. [2018-11-10 10:55:20,062 INFO L425 ceAbstractionStarter]: For program point round_floatFINAL(lines 11 52) no Hoare annotation was computed. [2018-11-10 10:55:20,063 INFO L425 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2018-11-10 10:55:20,063 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 34) no Hoare annotation was computed. [2018-11-10 10:55:20,063 INFO L425 ceAbstractionStarter]: For program point round_floatEXIT(lines 11 52) no Hoare annotation was computed. [2018-11-10 10:55:20,063 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 45) no Hoare annotation was computed. [2018-11-10 10:55:20,063 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-10 10:55:20,063 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (= round_float_~x |round_float_#in~x|) [2018-11-10 10:55:20,063 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-11-10 10:55:20,063 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 10:55:20,063 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 10:55:20,063 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 10:55:20,064 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 10:55:20,064 INFO L425 ceAbstractionStarter]: For program point L78(line 78) no Hoare annotation was computed. [2018-11-10 10:55:20,064 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 65 83) the Hoare annotation is: true [2018-11-10 10:55:20,064 INFO L421 ceAbstractionStarter]: At program point L77(line 77) 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) (= (fp.add RNE .cse0 .cse0) main_~res~0))) [2018-11-10 10:55:20,064 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 65 83) no Hoare annotation was computed. [2018-11-10 10:55:20,064 INFO L425 ceAbstractionStarter]: For program point L77-1(lines 77 80) no Hoare annotation was computed. [2018-11-10 10:55:20,064 INFO L421 ceAbstractionStarter]: At program point L74(line 74) the Hoare annotation is: (= (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)) main_~x~0) [2018-11-10 10:55:20,064 INFO L425 ceAbstractionStarter]: For program point L74-1(line 74) no Hoare annotation was computed. [2018-11-10 10:55:20,065 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 65 83) no Hoare annotation was computed. [2018-11-10 10:55:20,065 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 78) no Hoare annotation was computed. [2018-11-10 10:55:20,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:55:20 BoogieIcfgContainer [2018-11-10 10:55:20,074 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 10:55:20,074 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 10:55:20,074 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 10:55:20,074 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 10:55:20,075 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:55:17" (3/4) ... [2018-11-10 10:55:20,077 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 10:55:20,082 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 10:55:20,082 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-11-10 10:55:20,082 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure round_float [2018-11-10 10:55:20,082 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 10:55:20,086 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2018-11-10 10:55:20,086 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2018-11-10 10:55:20,086 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 10:55:20,104 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-10 10:55:20,104 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-10 10:55:20,125 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_09a0268b-aeb9-45c8-9840-17dddb06bc60/bin-2019/utaipan/witness.graphml [2018-11-10 10:55:20,125 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 10:55:20,126 INFO L168 Benchmark]: Toolchain (without parser) took 3393.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 949.8 MB in the beginning and 980.2 MB in the end (delta: -30.4 MB). Peak memory consumption was 115.9 MB. Max. memory is 11.5 GB. [2018-11-10 10:55:20,126 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:55:20,127 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.72 ms. Allocated memory is still 1.0 GB. Free memory was 949.8 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 10:55:20,127 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.33 ms. Allocated memory is still 1.0 GB. Free memory was 933.6 MB in the beginning and 932.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2018-11-10 10:55:20,127 INFO L168 Benchmark]: Boogie Preprocessor took 20.59 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:55:20,127 INFO L168 Benchmark]: RCFGBuilder took 318.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -181.9 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. [2018-11-10 10:55:20,128 INFO L168 Benchmark]: TraceAbstraction took 2790.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 980.2 MB in the end (delta: 134.3 MB). Peak memory consumption was 134.3 MB. Max. memory is 11.5 GB. [2018-11-10 10:55:20,128 INFO L168 Benchmark]: Witness Printer took 51.40 ms. Allocated memory is still 1.2 GB. Free memory is still 980.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:55:20,129 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 180.72 ms. Allocated memory is still 1.0 GB. Free memory was 949.8 MB in the beginning and 933.6 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 29.33 ms. Allocated memory is still 1.0 GB. Free memory was 933.6 MB in the beginning and 932.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.59 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 318.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -181.9 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2790.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 980.2 MB in the end (delta: 134.3 MB). Peak memory consumption was 134.3 MB. Max. memory is 11.5 GB. * Witness Printer took 51.40 ms. Allocated memory is still 1.2 GB. Free memory is still 980.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 78]: 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: 16]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 36 locations, 1 error locations. SAFE Result, 2.7s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 80 SDtfs, 53 SDslu, 256 SDs, 0 SdLazy, 137 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 14 PreInvPairs, 17 NumberOfFragments, 49 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 6 QuantifiedInterpolants, 8260 SizeOfPredicates, 19 NumberOfNonLiveVariables, 255 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...