./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/cast_float_ptr_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_float_ptr_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/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 4f322714ac20f006604c99f1f234e99ccbfae195 ............................................................................................................................................................................................................................................................................................................ 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_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_float_ptr_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/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 4f322714ac20f006604c99f1f234e99ccbfae195 ....................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 13:27:37,675 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:27:37,676 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:27:37,684 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:27:37,684 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:27:37,685 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:27:37,686 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:27:37,687 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:27:37,688 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:27:37,688 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:27:37,689 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:27:37,689 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:27:37,690 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:27:37,690 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:27:37,691 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:27:37,691 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:27:37,692 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:27:37,693 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:27:37,694 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:27:37,695 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:27:37,696 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:27:37,697 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:27:37,698 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:27:37,699 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:27:37,699 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:27:37,699 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:27:37,700 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:27:37,701 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:27:37,701 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:27:37,702 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:27:37,702 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:27:37,702 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:27:37,703 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:27:37,703 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:27:37,703 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:27:37,704 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:27:37,704 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 13:27:37,714 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:27:37,714 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:27:37,715 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:27:37,715 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:27:37,715 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:27:37,715 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:27:37,715 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 13:27:37,715 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:27:37,715 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 13:27:37,716 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 13:27:37,716 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:27:37,716 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:27:37,716 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:27:37,716 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:27:37,717 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:27:37,717 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:27:37,717 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:27:37,717 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:27:37,717 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:27:37,717 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:27:37,717 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:27:37,717 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:27:37,718 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:27:37,718 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:27:37,718 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:27:37,718 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:27:37,718 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:27:37,718 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:27:37,718 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:27:37,719 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:27:37,719 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 13:27:37,719 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:27:37,719 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:27:37,719 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 13:27:37,719 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_94f9d93f-1714-4d57-9e37-df8616d4fb12/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 -> 4f322714ac20f006604c99f1f234e99ccbfae195 [2018-11-10 13:27:37,742 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:27:37,751 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:27:37,754 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:27:37,754 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:27:37,755 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:27:37,755 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/cast_float_ptr_false-unreach-call_true-termination.c [2018-11-10 13:27:37,792 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/data/72ed294d8/66343235029649c3a7f21380fd0aef05/FLAGfce4f393d [2018-11-10 13:27:38,094 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:27:38,094 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/sv-benchmarks/c/float-benchs/cast_float_ptr_false-unreach-call_true-termination.c [2018-11-10 13:27:38,099 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/data/72ed294d8/66343235029649c3a7f21380fd0aef05/FLAGfce4f393d [2018-11-10 13:27:38,107 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/data/72ed294d8/66343235029649c3a7f21380fd0aef05 [2018-11-10 13:27:38,109 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:27:38,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:27:38,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:27:38,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:27:38,113 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:27:38,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:27:38" (1/1) ... [2018-11-10 13:27:38,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4104a14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:38, skipping insertion in model container [2018-11-10 13:27:38,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:27:38" (1/1) ... [2018-11-10 13:27:38,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:27:38,137 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:27:38,262 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:27:38,268 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:27:38,280 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:27:38,290 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:27:38,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:38 WrapperNode [2018-11-10 13:27:38,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:27:38,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:27:38,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:27:38,291 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:27:38,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:38" (1/1) ... [2018-11-10 13:27:38,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:38" (1/1) ... [2018-11-10 13:27:38,319 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:27:38,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:27:38,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:27:38,320 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:27:38,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:38" (1/1) ... [2018-11-10 13:27:38,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:38" (1/1) ... [2018-11-10 13:27:38,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:38" (1/1) ... [2018-11-10 13:27:38,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:38" (1/1) ... [2018-11-10 13:27:38,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:38" (1/1) ... [2018-11-10 13:27:38,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:38" (1/1) ... [2018-11-10 13:27:38,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:38" (1/1) ... [2018-11-10 13:27:38,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:27:38,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:27:38,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:27:38,336 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:27:38,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:27:38,417 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:27:38,417 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:27:38,417 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2018-11-10 13:27:38,417 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2018-11-10 13:27:38,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:27:38,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:27:38,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:27:38,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:27:38,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 13:27:38,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 13:27:38,591 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:27:38,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:27:38 BoogieIcfgContainer [2018-11-10 13:27:38,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:27:38,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:27:38,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:27:38,594 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:27:38,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:27:38" (1/3) ... [2018-11-10 13:27:38,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@757f7d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:27:38, skipping insertion in model container [2018-11-10 13:27:38,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:38" (2/3) ... [2018-11-10 13:27:38,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@757f7d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:27:38, skipping insertion in model container [2018-11-10 13:27:38,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:27:38" (3/3) ... [2018-11-10 13:27:38,597 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_float_ptr_false-unreach-call_true-termination.c [2018-11-10 13:27:38,604 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:27:38,610 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:27:38,622 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:27:38,646 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:27:38,646 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:27:38,646 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:27:38,646 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:27:38,647 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:27:38,647 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:27:38,647 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:27:38,647 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:27:38,662 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-11-10 13:27:38,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 13:27:38,668 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:27:38,668 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:27:38,670 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:27:38,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:27:38,674 INFO L82 PathProgramCache]: Analyzing trace with hash -241609895, now seen corresponding path program 1 times [2018-11-10 13:27:38,675 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:27:38,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:27:38,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:27:38,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:27:38,713 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:27:38,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:27:38,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:27:38,801 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 13:27:38,812 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:38,813 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:38,814 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:38,814 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:38,815 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:38,815 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:38,815 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:38,815 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:38,816 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:38,816 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:38,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:27:38 BoogieIcfgContainer [2018-11-10 13:27:38,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:27:38,829 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:27:38,829 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:27:38,829 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:27:38,829 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:27:38" (3/4) ... [2018-11-10 13:27:38,832 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 13:27:38,833 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:27:38,833 INFO L168 Benchmark]: Toolchain (without parser) took 723.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -133.8 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 13:27:38,835 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:27:38,835 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.52 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:27:38,836 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.38 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:27:38,836 INFO L168 Benchmark]: Boogie Preprocessor took 16.62 ms. Allocated memory is still 1.0 GB. Free memory is still 946.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:27:38,839 INFO L168 Benchmark]: RCFGBuilder took 255.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -174.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-11-10 13:27:38,839 INFO L168 Benchmark]: TraceAbstraction took 236.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2018-11-10 13:27:38,840 INFO L168 Benchmark]: Witness Printer took 4.06 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 13:27:38,842 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 179.52 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 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 28.38 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.62 ms. Allocated memory is still 1.0 GB. Free memory is still 946.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 255.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -174.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 236.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.06 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.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.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.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.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.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 23, overapproximation of bitwiseAnd at line 11. Possible FailurePath: [L32] double a; [L33] float r; [L35] a = __VERIFIER_nondet_double() [L36] CALL cast(a) [L8] CALL double dmax; [L8] RET double dmax; [L9] CALL float f; [L9] RET float f; [L11] CALL, EXPR \read(d) [L11] RET, EXPR \read(d) [L11] COND FALSE !((((*(unsigned*)&d) & 0x7FF00000) >> 20) == 2047) [L13] CALL ((unsigned*)&dmax)[0] = 0x47efffff [L13] RET ((unsigned*)&dmax)[0] = 0x47efffff [L14] CALL ((unsigned*)&dmax)[1] = 0xe0000000 [L14] RET ((unsigned*)&dmax)[1] = 0xe0000000 [L16] CALL, EXPR \read(d) [L16] RET, EXPR \read(d) [L16] CALL, EXPR \read(dmax) [L16] RET, EXPR \read(dmax) [L16] COND FALSE !(d > dmax) [L19] CALL, EXPR \read(d) [L19] RET, EXPR \read(d) [L19] CALL, EXPR \read(dmax) [L19] RET, EXPR \read(dmax) [L19] COND FALSE !(-d > dmax) [L23] CALL, EXPR \read(d) [L23] RET, EXPR \read(d) [L23] EXPR d >= -3.41e38 && d <= 3.41e38 [L23] CALL, EXPR \read(d) [L23] RET, EXPR \read(d) [L23] EXPR d >= -3.41e38 && d <= 3.41e38 [L23] CALL __VERIFIER_assert(d >= -3.41e38 && d <= 3.41e38) VAL [\old(cond)=0] [L3] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L3] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 13:27:40,314 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:27:40,316 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:27:40,325 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:27:40,325 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:27:40,326 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:27:40,326 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:27:40,328 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:27:40,329 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:27:40,329 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:27:40,330 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:27:40,330 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:27:40,331 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:27:40,331 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:27:40,332 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:27:40,333 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:27:40,333 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:27:40,334 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:27:40,336 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:27:40,337 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:27:40,338 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:27:40,339 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:27:40,340 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:27:40,340 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:27:40,341 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:27:40,342 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:27:40,343 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:27:40,343 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:27:40,344 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:27:40,344 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:27:40,345 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:27:40,345 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:27:40,346 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:27:40,346 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:27:40,346 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:27:40,347 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:27:40,347 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 13:27:40,357 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:27:40,357 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:27:40,358 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:27:40,358 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:27:40,358 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:27:40,358 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:27:40,359 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:27:40,359 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:27:40,359 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:27:40,359 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:27:40,359 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:27:40,360 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:27:40,360 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:27:40,360 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:27:40,360 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:27:40,360 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 13:27:40,360 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 13:27:40,360 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:27:40,361 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:27:40,361 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:27:40,363 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:27:40,363 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:27:40,363 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:27:40,363 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:27:40,363 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:27:40,363 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:27:40,364 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:27:40,364 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:27:40,364 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 13:27:40,364 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:27:40,364 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 13:27:40,364 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 13:27:40,364 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_94f9d93f-1714-4d57-9e37-df8616d4fb12/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 -> 4f322714ac20f006604c99f1f234e99ccbfae195 [2018-11-10 13:27:40,395 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:27:40,404 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:27:40,407 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:27:40,408 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:27:40,408 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:27:40,409 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/cast_float_ptr_false-unreach-call_true-termination.c [2018-11-10 13:27:40,453 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/data/a255bdb1f/d945725550274f0f8be7f68072ef5d81/FLAGd436fb359 [2018-11-10 13:27:40,763 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:27:40,763 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/sv-benchmarks/c/float-benchs/cast_float_ptr_false-unreach-call_true-termination.c [2018-11-10 13:27:40,767 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/data/a255bdb1f/d945725550274f0f8be7f68072ef5d81/FLAGd436fb359 [2018-11-10 13:27:40,775 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/data/a255bdb1f/d945725550274f0f8be7f68072ef5d81 [2018-11-10 13:27:40,778 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:27:40,778 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:27:40,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:27:40,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:27:40,781 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:27:40,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:27:40" (1/1) ... [2018-11-10 13:27:40,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d68c770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:40, skipping insertion in model container [2018-11-10 13:27:40,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:27:40" (1/1) ... [2018-11-10 13:27:40,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:27:40,801 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:27:40,903 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:27:40,912 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:27:40,925 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:27:40,940 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:27:40,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:40 WrapperNode [2018-11-10 13:27:40,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:27:40,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:27:40,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:27:40,941 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:27:40,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:40" (1/1) ... [2018-11-10 13:27:40,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:40" (1/1) ... [2018-11-10 13:27:40,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:27:40,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:27:40,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:27:40,973 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:27:40,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:40" (1/1) ... [2018-11-10 13:27:40,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:40" (1/1) ... [2018-11-10 13:27:40,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:40" (1/1) ... [2018-11-10 13:27:40,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:40" (1/1) ... [2018-11-10 13:27:40,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:40" (1/1) ... [2018-11-10 13:27:40,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:40" (1/1) ... [2018-11-10 13:27:40,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:40" (1/1) ... [2018-11-10 13:27:41,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:27:41,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:27:41,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:27:41,001 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:27:41,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:27:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:27:41,082 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:27:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2018-11-10 13:27:41,082 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2018-11-10 13:27:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:27:41,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:27:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:27:41,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:27:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 13:27:41,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 13:27:41,198 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 13:27:41,302 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 13:27:41,345 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:27:41,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:27:41 BoogieIcfgContainer [2018-11-10 13:27:41,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:27:41,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:27:41,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:27:41,350 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:27:41,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:27:40" (1/3) ... [2018-11-10 13:27:41,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ecd893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:27:41, skipping insertion in model container [2018-11-10 13:27:41,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:27:40" (2/3) ... [2018-11-10 13:27:41,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ecd893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:27:41, skipping insertion in model container [2018-11-10 13:27:41,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:27:41" (3/3) ... [2018-11-10 13:27:41,354 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_float_ptr_false-unreach-call_true-termination.c [2018-11-10 13:27:41,362 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:27:41,368 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:27:41,378 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:27:41,401 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 13:27:41,402 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:27:41,402 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:27:41,402 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:27:41,402 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:27:41,402 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:27:41,403 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:27:41,403 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:27:41,403 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:27:41,416 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-11-10 13:27:41,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 13:27:41,421 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:27:41,421 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:27:41,423 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:27:41,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:27:41,428 INFO L82 PathProgramCache]: Analyzing trace with hash -241609895, now seen corresponding path program 1 times [2018-11-10 13:27:41,431 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:27:41,432 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-10 13:27:41,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:27:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:27:41,547 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:27:41,628 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 13:27:41,633 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 13:27:41,634 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 13:27:41,640 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:27:41,671 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 13:27:41,671 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:99, output treesize:95 [2018-11-10 13:27:41,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:27:41,892 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:27:41,901 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:27:41,901 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 13:27:41,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 13:27:41,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 13:27:41,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-10 13:27:41,913 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 6 states. [2018-11-10 13:27:42,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:27:42,367 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2018-11-10 13:27:42,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 13:27:42,373 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-11-10 13:27:42,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:27:42,378 INFO L225 Difference]: With dead ends: 44 [2018-11-10 13:27:42,378 INFO L226 Difference]: Without dead ends: 17 [2018-11-10 13:27:42,380 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-10 13:27:42,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-10 13:27:42,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-10 13:27:42,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-10 13:27:42,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2018-11-10 13:27:42,401 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 16 [2018-11-10 13:27:42,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:27:42,402 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2018-11-10 13:27:42,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 13:27:42,402 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2018-11-10 13:27:42,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 13:27:42,402 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:27:42,402 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:27:42,403 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:27:42,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:27:42,403 INFO L82 PathProgramCache]: Analyzing trace with hash -239762853, now seen corresponding path program 1 times [2018-11-10 13:27:42,403 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:27:42,403 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-10 13:27:42,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:27:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:27:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:27:42,628 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 13:27:42,638 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:42,639 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:42,639 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:42,640 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:42,640 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:42,640 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:42,641 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:42,641 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:42,642 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:42,642 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:42,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:27:42 BoogieIcfgContainer [2018-11-10 13:27:42,653 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:27:42,654 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:27:42,654 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:27:42,654 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:27:42,654 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:27:41" (3/4) ... [2018-11-10 13:27:42,656 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 13:27:42,657 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:42,658 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:42,658 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:42,658 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:42,658 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:42,659 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:42,659 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:42,659 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:42,660 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:42,660 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:27:42,691 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_94f9d93f-1714-4d57-9e37-df8616d4fb12/bin-2019/utaipan/witness.graphml [2018-11-10 13:27:42,691 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:27:42,691 INFO L168 Benchmark]: Toolchain (without parser) took 1913.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 950.8 MB in the beginning and 1.0 GB in the end (delta: -90.7 MB). Peak memory consumption was 68.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:27:42,693 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:27:42,693 INFO L168 Benchmark]: CACSL2BoogieTranslator took 161.42 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:27:42,693 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.39 ms. Allocated memory is still 1.0 GB. Free memory was 940.1 MB in the beginning and 934.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:27:42,694 INFO L168 Benchmark]: Boogie Preprocessor took 26.89 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:27:42,694 INFO L168 Benchmark]: RCFGBuilder took 345.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -195.2 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2018-11-10 13:27:42,695 INFO L168 Benchmark]: TraceAbstraction took 1306.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.4 MB). Peak memory consumption was 81.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:27:42,695 INFO L168 Benchmark]: Witness Printer took 37.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-11-10 13:27:42,698 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 161.42 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.39 ms. Allocated memory is still 1.0 GB. Free memory was 940.1 MB in the beginning and 934.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.89 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 345.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -195.2 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1306.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.4 MB). Peak memory consumption was 81.4 MB. Max. memory is 11.5 GB. * Witness Printer took 37.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.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.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.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.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.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.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.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.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.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.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L32] double a; [L33] float r; [L35] a = __VERIFIER_nondet_double() [L36] CALL cast(a) [L8] CALL double dmax; [L8] RET double dmax; [L9] CALL float f; [L9] RET float f; [L11] CALL, EXPR \read(d) [L11] RET, EXPR \read(d) [L11] COND FALSE !((((*(unsigned*)&d) & 0x7FF00000) >> 20) == 2047) [L13] CALL ((unsigned*)&dmax)[0] = 0x47efffff [L13] RET ((unsigned*)&dmax)[0] = 0x47efffff [L14] CALL ((unsigned*)&dmax)[1] = 0xe0000000 [L14] RET ((unsigned*)&dmax)[1] = 0xe0000000 [L16] CALL, EXPR \read(d) [L16] RET, EXPR \read(d) [L16] CALL, EXPR \read(dmax) [L16] RET, EXPR \read(dmax) [L16] COND FALSE !(d > dmax) [L19] CALL, EXPR \read(d) [L19] RET, EXPR \read(d) [L19] CALL, EXPR \read(dmax) [L19] RET, EXPR \read(dmax) [L19] COND FALSE !(-d > dmax) [L23] CALL, EXPR \read(d) [L23] RET, EXPR \read(d) [L23] EXPR d >= -3.41e38 && d <= 3.41e38 [L23] CALL __VERIFIER_assert(d >= -3.41e38 && d <= 3.41e38) VAL [\old(cond)=0] [L3] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L3] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 locations, 1 error locations. UNSAFE Result, 1.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 6 SDslu, 55 SDs, 0 SdLazy, 29 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 3 QuantifiedInterpolants, 4605 SizeOfPredicates, 14 NumberOfNonLiveVariables, 98 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...