./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1091_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_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/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 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c ........................................................................................................................................................................................................................................................................................................................................................................................... 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_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/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 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c ......................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:32:28,356 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 02:32:28,357 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 02:32:28,364 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 02:32:28,364 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 02:32:28,365 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 02:32:28,366 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 02:32:28,367 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 02:32:28,368 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 02:32:28,368 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 02:32:28,369 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 02:32:28,369 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 02:32:28,370 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 02:32:28,370 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 02:32:28,371 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 02:32:28,372 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 02:32:28,372 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 02:32:28,373 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 02:32:28,375 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 02:32:28,376 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 02:32:28,376 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 02:32:28,377 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 02:32:28,379 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 02:32:28,379 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 02:32:28,379 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 02:32:28,380 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 02:32:28,381 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 02:32:28,381 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 02:32:28,382 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 02:32:28,382 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 02:32:28,383 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 02:32:28,383 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 02:32:28,383 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 02:32:28,383 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 02:32:28,384 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 02:32:28,384 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 02:32:28,385 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 02:32:28,395 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 02:32:28,395 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 02:32:28,396 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 02:32:28,396 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 02:32:28,396 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 02:32:28,396 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 02:32:28,396 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 02:32:28,396 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 02:32:28,396 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 02:32:28,397 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 02:32:28,397 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 02:32:28,397 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 02:32:28,397 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 02:32:28,397 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 02:32:28,397 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 02:32:28,398 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 02:32:28,398 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 02:32:28,398 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 02:32:28,398 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 02:32:28,398 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 02:32:28,398 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 02:32:28,398 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 02:32:28,399 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 02:32:28,399 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 02:32:28,399 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 02:32:28,399 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 02:32:28,399 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 02:32:28,399 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 02:32:28,399 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 02:32:28,399 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 02:32:28,399 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 02:32:28,399 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 02:32:28,399 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 02:32:28,399 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 02:32:28,399 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_c7e0b959-d4da-468c-b612-cceeff10eb36/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 -> 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c [2018-11-10 02:32:28,420 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 02:32:28,428 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 02:32:28,430 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 02:32:28,431 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 02:32:28,431 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 02:32:28,432 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-11-10 02:32:28,468 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/data/dba592dfa/acd21e885e1143908d4f9e1542e2e835/FLAG2d083111f [2018-11-10 02:32:28,868 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 02:32:28,869 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-11-10 02:32:28,873 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/data/dba592dfa/acd21e885e1143908d4f9e1542e2e835/FLAG2d083111f [2018-11-10 02:32:28,884 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/data/dba592dfa/acd21e885e1143908d4f9e1542e2e835 [2018-11-10 02:32:28,886 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 02:32:28,887 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 02:32:28,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 02:32:28,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 02:32:28,889 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 02:32:28,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:32:28" (1/1) ... [2018-11-10 02:32:28,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1183f8d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:28, skipping insertion in model container [2018-11-10 02:32:28,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:32:28" (1/1) ... [2018-11-10 02:32:28,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 02:32:28,911 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 02:32:29,018 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 02:32:29,020 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 02:32:29,037 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 02:32:29,049 INFO L193 MainTranslator]: Completed translation [2018-11-10 02:32:29,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:29 WrapperNode [2018-11-10 02:32:29,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 02:32:29,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 02:32:29,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 02:32:29,050 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 02:32:29,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:29" (1/1) ... [2018-11-10 02:32:29,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:29" (1/1) ... [2018-11-10 02:32:29,075 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 02:32:29,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 02:32:29,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 02:32:29,075 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 02:32:29,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:29" (1/1) ... [2018-11-10 02:32:29,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:29" (1/1) ... [2018-11-10 02:32:29,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:29" (1/1) ... [2018-11-10 02:32:29,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:29" (1/1) ... [2018-11-10 02:32:29,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:29" (1/1) ... [2018-11-10 02:32:29,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:29" (1/1) ... [2018-11-10 02:32:29,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:29" (1/1) ... [2018-11-10 02:32:29,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 02:32:29,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 02:32:29,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 02:32:29,094 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 02:32:29,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/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 02:32:29,166 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 02:32:29,166 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 02:32:29,166 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-11-10 02:32:29,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-11-10 02:32:29,166 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 02:32:29,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 02:32:29,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 02:32:29,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 02:32:29,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 02:32:29,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 02:32:29,385 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 02:32:29,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 02:32:29 BoogieIcfgContainer [2018-11-10 02:32:29,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 02:32:29,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 02:32:29,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 02:32:29,389 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 02:32:29,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:32:28" (1/3) ... [2018-11-10 02:32:29,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17767b64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:32:29, skipping insertion in model container [2018-11-10 02:32:29,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:29" (2/3) ... [2018-11-10 02:32:29,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17767b64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:32:29, skipping insertion in model container [2018-11-10 02:32:29,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 02:32:29" (3/3) ... [2018-11-10 02:32:29,392 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1091_true-unreach-call.c [2018-11-10 02:32:29,400 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 02:32:29,405 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 02:32:29,416 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 02:32:29,436 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 02:32:29,436 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 02:32:29,436 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 02:32:29,436 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 02:32:29,436 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 02:32:29,437 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 02:32:29,437 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 02:32:29,437 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 02:32:29,448 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-11-10 02:32:29,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 02:32:29,452 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 02:32:29,452 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] [2018-11-10 02:32:29,454 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 02:32:29,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:32:29,457 INFO L82 PathProgramCache]: Analyzing trace with hash -2004278749, now seen corresponding path program 1 times [2018-11-10 02:32:29,459 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 02:32:29,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:32:29,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:32:29,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:32:29,487 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 02:32:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:32:29,540 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 02:32:29,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 02:32:29,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 02:32:29,541 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 02:32:29,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 02:32:29,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 02:32:29,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 02:32:29,554 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2018-11-10 02:32:29,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 02:32:29,566 INFO L93 Difference]: Finished difference Result 70 states and 96 transitions. [2018-11-10 02:32:29,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 02:32:29,567 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-10 02:32:29,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 02:32:29,576 INFO L225 Difference]: With dead ends: 70 [2018-11-10 02:32:29,576 INFO L226 Difference]: Without dead ends: 35 [2018-11-10 02:32:29,578 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 02:32:29,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-10 02:32:29,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-10 02:32:29,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-10 02:32:29,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2018-11-10 02:32:29,604 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 22 [2018-11-10 02:32:29,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 02:32:29,604 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2018-11-10 02:32:29,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 02:32:29,604 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2018-11-10 02:32:29,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 02:32:29,605 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 02:32:29,605 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 02:32:29,605 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 02:32:29,605 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:32:29,606 INFO L82 PathProgramCache]: Analyzing trace with hash 2117184564, now seen corresponding path program 1 times [2018-11-10 02:32:29,606 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 02:32:29,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:32:29,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:32:29,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:32:29,607 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 02:32:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:32:29,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:32:29,683 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 02:32:29,692 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 02:32:29,693 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 02:32:29,693 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 02:32:29,693 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 02:32:29,693 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 02:32:29,693 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 02:32:29,693 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 02:32:29,693 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 02:32:29,694 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 02:32:29,694 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 02:32:29,694 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 02:32:29,694 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 02:32:29,694 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 02:32:29,694 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 02:32:29,695 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 02:32:29,695 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 02:32:29,695 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 02:32:29,695 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 02:32:29,695 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 02:32:29,696 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 02:32:29,696 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 02:32:29,696 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 02:32:29,696 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 02:32:29,696 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 02:32:29,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 02:32:29 BoogieIcfgContainer [2018-11-10 02:32:29,707 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 02:32:29,707 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 02:32:29,707 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 02:32:29,707 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 02:32:29,707 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 02:32:29" (3/4) ... [2018-11-10 02:32:29,710 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 02:32:29,710 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 02:32:29,710 INFO L168 Benchmark]: Toolchain (without parser) took 824.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 958.2 MB in the beginning and 1.1 GB in the end (delta: -135.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-11-10 02:32:29,712 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 02:32:29,712 INFO L168 Benchmark]: CACSL2BoogieTranslator took 163.06 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 02:32:29,712 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.49 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 02:32:29,713 INFO L168 Benchmark]: Boogie Preprocessor took 18.21 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 942.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 02:32:29,713 INFO L168 Benchmark]: RCFGBuilder took 292.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 942.1 MB in the beginning and 1.1 GB in the end (delta: -191.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-10 02:32:29,714 INFO L168 Benchmark]: TraceAbstraction took 320.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.5 MB). Peak memory consumption was 40.5 MB. Max. memory is 11.5 GB. [2018-11-10 02:32:29,714 INFO L168 Benchmark]: Witness Printer took 3.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 02:32:29,717 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 163.06 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 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 24.49 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.21 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 942.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 292.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 942.1 MB in the beginning and 1.1 GB in the end (delta: -191.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 320.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.5 MB). Peak memory consumption was 40.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 72]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 57, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L11] static const float huge_ceil = 1.0e30; VAL [\old(huge_ceil)=6442450948, huge_ceil=1000000000000000000000000000000] [L66] float x = 0.0f / 0.0f; VAL [huge_ceil=1000000000000000000000000000000] [L68] CALL, EXPR ceil_float(x) VAL [huge_ceil=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [huge_ceil=1000000000000000000000000000000] [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] (i0) = gf_u.word [L19] RET (i0) = gf_u.word [L20] COND FALSE !(0) VAL [huge_ceil=1000000000000000000000000000000] [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [huge_ceil=1000000000000000000000000000000] [L23] COND FALSE !(j0 < 23) VAL [huge_ceil=1000000000000000000000000000000] [L43] COND TRUE !((ix) < 0x7f800000L) [L44] RET return x + x; VAL [huge_ceil=1000000000000000000000000000000] [L68] EXPR ceil_float(x) VAL [ceil_float(x)=6442450950, huge_ceil=1000000000000000000000000000000, x=6442450949] [L68] float res = ceil_float(x); [L71] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450950, huge_ceil=1000000000000000000000000000000] [L57] RET return x != x; VAL [\old(x)=6442450950, \result=0, huge_ceil=1000000000000000000000000000000, x=6442450950] [L71] EXPR isnan_float(res) VAL [huge_ceil=1000000000000000000000000000000, isnan_float(res)=0, res=6442450950, x=6442450949] [L71] COND TRUE !isnan_float(res) [L72] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000, res=6442450950, x=6442450949] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 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=39occurred 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, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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 02:32:31,177 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 02:32:31,179 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 02:32:31,187 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 02:32:31,187 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 02:32:31,188 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 02:32:31,189 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 02:32:31,190 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 02:32:31,191 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 02:32:31,192 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 02:32:31,192 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 02:32:31,192 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 02:32:31,193 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 02:32:31,194 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 02:32:31,194 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 02:32:31,195 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 02:32:31,196 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 02:32:31,197 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 02:32:31,198 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 02:32:31,199 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 02:32:31,200 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 02:32:31,201 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 02:32:31,202 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 02:32:31,203 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 02:32:31,203 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 02:32:31,204 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 02:32:31,204 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 02:32:31,205 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 02:32:31,205 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 02:32:31,206 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 02:32:31,206 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 02:32:31,207 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 02:32:31,207 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 02:32:31,207 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 02:32:31,208 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 02:32:31,208 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 02:32:31,208 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 02:32:31,218 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 02:32:31,218 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 02:32:31,219 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 02:32:31,219 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 02:32:31,219 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 02:32:31,219 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 02:32:31,219 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 02:32:31,219 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 02:32:31,220 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 02:32:31,220 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 02:32:31,220 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 02:32:31,220 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 02:32:31,220 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 02:32:31,221 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 02:32:31,221 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 02:32:31,221 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 02:32:31,221 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 02:32:31,221 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 02:32:31,221 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 02:32:31,221 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 02:32:31,221 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 02:32:31,222 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 02:32:31,222 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 02:32:31,222 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 02:32:31,222 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 02:32:31,222 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 02:32:31,222 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 02:32:31,222 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 02:32:31,222 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 02:32:31,223 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 02:32:31,223 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 02:32:31,223 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 02:32:31,223 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_c7e0b959-d4da-468c-b612-cceeff10eb36/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 -> 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c [2018-11-10 02:32:31,253 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 02:32:31,262 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 02:32:31,265 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 02:32:31,266 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 02:32:31,267 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 02:32:31,267 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-11-10 02:32:31,314 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/data/0d9a83368/6609987af9ce4c7285c8cbd9600794a6/FLAG4a845466b [2018-11-10 02:32:31,643 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 02:32:31,643 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-11-10 02:32:31,647 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/data/0d9a83368/6609987af9ce4c7285c8cbd9600794a6/FLAG4a845466b [2018-11-10 02:32:31,655 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/data/0d9a83368/6609987af9ce4c7285c8cbd9600794a6 [2018-11-10 02:32:31,657 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 02:32:31,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 02:32:31,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 02:32:31,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 02:32:31,662 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 02:32:31,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:32:31" (1/1) ... [2018-11-10 02:32:31,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f8d760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:31, skipping insertion in model container [2018-11-10 02:32:31,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:32:31" (1/1) ... [2018-11-10 02:32:31,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 02:32:31,683 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 02:32:31,796 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 02:32:31,799 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 02:32:31,818 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 02:32:31,835 INFO L193 MainTranslator]: Completed translation [2018-11-10 02:32:31,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:31 WrapperNode [2018-11-10 02:32:31,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 02:32:31,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 02:32:31,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 02:32:31,836 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 02:32:31,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:31" (1/1) ... [2018-11-10 02:32:31,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:31" (1/1) ... [2018-11-10 02:32:31,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 02:32:31,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 02:32:31,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 02:32:31,865 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 02:32:31,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:31" (1/1) ... [2018-11-10 02:32:31,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:31" (1/1) ... [2018-11-10 02:32:31,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:31" (1/1) ... [2018-11-10 02:32:31,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:31" (1/1) ... [2018-11-10 02:32:31,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:31" (1/1) ... [2018-11-10 02:32:31,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:31" (1/1) ... [2018-11-10 02:32:31,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:31" (1/1) ... [2018-11-10 02:32:31,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 02:32:31,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 02:32:31,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 02:32:31,886 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 02:32:31,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/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 02:32:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 02:32:31,971 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 02:32:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-11-10 02:32:31,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-11-10 02:32:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 02:32:31,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 02:32:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 02:32:31,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 02:32:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 02:32:31,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 02:32:32,295 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 02:32:32,435 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 02:32:32,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 02:32:32 BoogieIcfgContainer [2018-11-10 02:32:32,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 02:32:32,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 02:32:32,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 02:32:32,438 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 02:32:32,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:32:31" (1/3) ... [2018-11-10 02:32:32,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db9990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:32:32, skipping insertion in model container [2018-11-10 02:32:32,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:32:31" (2/3) ... [2018-11-10 02:32:32,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db9990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:32:32, skipping insertion in model container [2018-11-10 02:32:32,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 02:32:32" (3/3) ... [2018-11-10 02:32:32,441 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1091_true-unreach-call.c [2018-11-10 02:32:32,448 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 02:32:32,453 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 02:32:32,462 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 02:32:32,481 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 02:32:32,481 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 02:32:32,482 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 02:32:32,482 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 02:32:32,482 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 02:32:32,482 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 02:32:32,482 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 02:32:32,482 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 02:32:32,482 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 02:32:32,491 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-11-10 02:32:32,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 02:32:32,495 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 02:32:32,496 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] [2018-11-10 02:32:32,497 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 02:32:32,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:32:32,500 INFO L82 PathProgramCache]: Analyzing trace with hash -2130801848, now seen corresponding path program 1 times [2018-11-10 02:32:32,503 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 02:32:32,503 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/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 02:32:32,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:32:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:32:32,551 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 02:32:32,567 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 02:32:32,567 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 02:32:32,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 02:32:32,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 02:32:32,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 02:32:32,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 02:32:32,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 02:32:32,588 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-11-10 02:32:32,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 02:32:32,603 INFO L93 Difference]: Finished difference Result 68 states and 94 transitions. [2018-11-10 02:32:32,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 02:32:32,604 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-10 02:32:32,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 02:32:32,611 INFO L225 Difference]: With dead ends: 68 [2018-11-10 02:32:32,611 INFO L226 Difference]: Without dead ends: 34 [2018-11-10 02:32:32,613 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 02:32:32,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-10 02:32:32,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-10 02:32:32,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-10 02:32:32,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2018-11-10 02:32:32,639 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 21 [2018-11-10 02:32:32,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 02:32:32,639 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2018-11-10 02:32:32,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 02:32:32,639 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2018-11-10 02:32:32,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 02:32:32,640 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 02:32:32,640 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] [2018-11-10 02:32:32,640 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 02:32:32,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:32:32,641 INFO L82 PathProgramCache]: Analyzing trace with hash 327472218, now seen corresponding path program 1 times [2018-11-10 02:32:32,641 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 02:32:32,641 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/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 02:32:32,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:32:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:32:32,702 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 02:32:32,884 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 02:32:32,884 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 02:32:32,890 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 02:32:32,890 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 02:32:32,891 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 02:32:32,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 02:32:32,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 02:32:32,892 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 9 states. [2018-11-10 02:32:33,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 02:32:33,505 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2018-11-10 02:32:33,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 02:32:33,506 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-10 02:32:33,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 02:32:33,508 INFO L225 Difference]: With dead ends: 43 [2018-11-10 02:32:33,508 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 02:32:33,508 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-10 02:32:33,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 02:32:33,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-11-10 02:32:33,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-10 02:32:33,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2018-11-10 02:32:33,515 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 22 [2018-11-10 02:32:33,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 02:32:33,516 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2018-11-10 02:32:33,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 02:32:33,516 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2018-11-10 02:32:33,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 02:32:33,517 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 02:32:33,517 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] [2018-11-10 02:32:33,517 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 02:32:33,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:32:33,517 INFO L82 PathProgramCache]: Analyzing trace with hash 523985723, now seen corresponding path program 1 times [2018-11-10 02:32:33,518 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 02:32:33,518 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/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 02:32:33,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:32:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:32:33,570 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 02:32:33,846 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 02:32:33,847 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 02:32:33,857 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 02:32:33,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 02:32:33,858 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 02:32:33,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 02:32:33,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 02:32:33,859 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand 9 states. [2018-11-10 02:32:34,170 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-10 02:32:34,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 02:32:34,706 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2018-11-10 02:32:34,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 02:32:34,706 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-10 02:32:34,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 02:32:34,707 INFO L225 Difference]: With dead ends: 41 [2018-11-10 02:32:34,707 INFO L226 Difference]: Without dead ends: 33 [2018-11-10 02:32:34,708 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-10 02:32:34,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-10 02:32:34,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-10 02:32:34,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 02:32:34,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-11-10 02:32:34,710 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 22 [2018-11-10 02:32:34,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 02:32:34,711 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-11-10 02:32:34,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 02:32:34,711 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-11-10 02:32:34,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 02:32:34,711 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 02:32:34,712 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 02:32:34,712 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 02:32:34,712 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:32:34,712 INFO L82 PathProgramCache]: Analyzing trace with hash -562125384, now seen corresponding path program 1 times [2018-11-10 02:32:34,712 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 02:32:34,712 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-10 02:32:34,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:32:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:32:34,775 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 02:32:34,860 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 02:32:34,860 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 02:32:34,873 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 02:32:34,873 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 02:32:34,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 02:32:34,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 02:32:34,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 02:32:34,874 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 7 states. [2018-11-10 02:32:35,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 02:32:35,484 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2018-11-10 02:32:35,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 02:32:35,485 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-10 02:32:35,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 02:32:35,485 INFO L225 Difference]: With dead ends: 39 [2018-11-10 02:32:35,485 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 02:32:35,486 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 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 02:32:35,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 02:32:35,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 02:32:35,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 02:32:35,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 02:32:35,486 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-11-10 02:32:35,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 02:32:35,487 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 02:32:35,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 02:32:35,487 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 02:32:35,487 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 02:32:35,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 02:32:35,551 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 57) no Hoare annotation was computed. [2018-11-10 02:32:35,552 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 57) the Hoare annotation is: true [2018-11-10 02:32:35,552 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 57) no Hoare annotation was computed. [2018-11-10 02:32:35,552 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 02:32:35,552 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 02:32:35,552 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 02:32:35,552 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 02:32:35,552 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 02:32:35,553 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 02:32:35,553 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 02:32:35,553 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 59 77) the Hoare annotation is: true [2018-11-10 02:32:35,553 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 59 77) no Hoare annotation was computed. [2018-11-10 02:32:35,553 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 72) no Hoare annotation was computed. [2018-11-10 02:32:35,553 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 59 77) no Hoare annotation was computed. [2018-11-10 02:32:35,553 INFO L425 ceAbstractionStarter]: For program point L72(line 72) no Hoare annotation was computed. [2018-11-10 02:32:35,553 INFO L421 ceAbstractionStarter]: At program point L71(line 71) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add RNE .cse0 .cse0)) (= .cse0 main_~x~0))) [2018-11-10 02:32:35,554 INFO L425 ceAbstractionStarter]: For program point L71-1(lines 71 74) no Hoare annotation was computed. [2018-11-10 02:32:35,554 INFO L421 ceAbstractionStarter]: At program point L68(line 68) the Hoare annotation is: (= (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)) main_~x~0) [2018-11-10 02:32:35,554 INFO L425 ceAbstractionStarter]: For program point L68-1(line 68) no Hoare annotation was computed. [2018-11-10 02:32:35,554 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-11-10 02:32:35,554 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-11-10 02:32:35,554 INFO L425 ceAbstractionStarter]: For program point L48-2(lines 13 54) no Hoare annotation was computed. [2018-11-10 02:32:35,554 INFO L425 ceAbstractionStarter]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2018-11-10 02:32:35,554 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-11-10 02:32:35,554 INFO L428 ceAbstractionStarter]: At program point ceil_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-11-10 02:32:35,555 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-11-10 02:32:35,555 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-11-10 02:32:35,555 INFO L425 ceAbstractionStarter]: For program point ceil_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-11-10 02:32:35,555 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-10 02:32:35,555 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (= |ceil_float_#in~x| ceil_float_~x) [2018-11-10 02:32:35,555 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-11-10 02:32:35,555 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-10 02:32:35,555 INFO L425 ceAbstractionStarter]: For program point ceil_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-11-10 02:32:35,555 INFO L425 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-11-10 02:32:35,556 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-11-10 02:32:35,556 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-10 02:32:35,556 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-11-10 02:32:35,556 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-11-10 02:32:35,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 02:32:35 BoogieIcfgContainer [2018-11-10 02:32:35,566 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 02:32:35,566 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 02:32:35,567 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 02:32:35,567 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 02:32:35,567 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 02:32:32" (3/4) ... [2018-11-10 02:32:35,570 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 02:32:35,575 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-10 02:32:35,576 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 02:32:35,576 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 02:32:35,576 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_float [2018-11-10 02:32:35,580 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2018-11-10 02:32:35,581 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-11-10 02:32:35,581 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-10 02:32:35,600 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-10 02:32:35,619 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c7e0b959-d4da-468c-b612-cceeff10eb36/bin-2019/utaipan/witness.graphml [2018-11-10 02:32:35,619 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 02:32:35,619 INFO L168 Benchmark]: Toolchain (without parser) took 3961.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 949.7 MB in the beginning and 953.4 MB in the end (delta: -3.6 MB). Peak memory consumption was 135.3 MB. Max. memory is 11.5 GB. [2018-11-10 02:32:35,620 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 02:32:35,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.95 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 932.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-11-10 02:32:35,620 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.27 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 02:32:35,621 INFO L168 Benchmark]: Boogie Preprocessor took 20.77 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 02:32:35,621 INFO L168 Benchmark]: RCFGBuilder took 549.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -174.9 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-10 02:32:35,621 INFO L168 Benchmark]: TraceAbstraction took 3130.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 953.4 MB in the end (delta: 154.2 MB). Peak memory consumption was 154.2 MB. Max. memory is 11.5 GB. [2018-11-10 02:32:35,622 INFO L168 Benchmark]: Witness Printer took 52.37 ms. Allocated memory is still 1.2 GB. Free memory is still 953.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 02:32:35,623 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 175.95 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 932.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.27 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. * Boogie Preprocessor took 20.77 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 549.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -174.9 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3130.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 953.4 MB in the end (delta: 154.2 MB). Peak memory consumption was 154.2 MB. Max. memory is 11.5 GB. * Witness Printer took 52.37 ms. Allocated memory is still 1.2 GB. Free memory is still 953.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 72]: 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: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. SAFE Result, 3.0s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 122 SDtfs, 107 SDslu, 423 SDs, 0 SdLazy, 214 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 34 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 87 ConstructedInterpolants, 8 QuantifiedInterpolants, 9390 SizeOfPredicates, 17 NumberOfNonLiveVariables, 300 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...