./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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/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_a3bb46a5-fbac-4521-b201-4f1a79deba90/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/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_a3bb46a5-fbac-4521-b201-4f1a79deba90/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/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_a3bb46a5-fbac-4521-b201-4f1a79deba90/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/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 0.1.23-5842f4b [2018-11-18 14:26:44,722 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:26:44,723 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:26:44,731 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:26:44,731 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:26:44,731 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:26:44,732 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:26:44,733 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:26:44,734 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:26:44,735 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:26:44,735 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:26:44,736 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:26:44,736 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:26:44,737 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:26:44,738 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:26:44,738 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:26:44,739 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:26:44,740 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:26:44,741 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:26:44,742 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:26:44,743 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:26:44,744 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:26:44,745 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:26:44,746 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:26:44,746 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:26:44,746 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:26:44,747 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:26:44,748 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:26:44,748 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:26:44,749 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:26:44,749 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:26:44,750 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:26:44,750 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:26:44,750 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:26:44,750 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:26:44,751 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:26:44,751 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 14:26:44,759 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:26:44,759 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:26:44,760 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:26:44,760 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:26:44,760 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:26:44,760 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:26:44,760 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:26:44,760 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 14:26:44,761 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:26:44,761 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:26:44,761 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 14:26:44,761 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 14:26:44,761 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:26:44,762 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:26:44,762 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:26:44,762 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:26:44,762 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:26:44,762 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:26:44,762 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:26:44,762 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:26:44,763 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:26:44,763 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:26:44,763 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:26:44,763 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:26:44,763 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:26:44,763 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:26:44,763 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:26:44,764 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:26:44,764 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:26:44,764 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:26:44,764 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:26:44,764 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:26:44,764 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:26:44,764 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 14:26:44,764 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:26:44,765 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:26:44,765 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 14:26:44,765 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_a3bb46a5-fbac-4521-b201-4f1a79deba90/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 [2018-11-18 14:26:44,788 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:26:44,796 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:26:44,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:26:44,799 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:26:44,799 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:26:44,800 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/cast_float_ptr_false-unreach-call_true-termination.c [2018-11-18 14:26:44,835 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/bin-2019/utaipan/data/bd5ad98d7/b0d51e001feb47b39b6b3ec4b93e86ac/FLAGa3a592623 [2018-11-18 14:26:45,231 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:26:45,231 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/sv-benchmarks/c/float-benchs/cast_float_ptr_false-unreach-call_true-termination.c [2018-11-18 14:26:45,235 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/bin-2019/utaipan/data/bd5ad98d7/b0d51e001feb47b39b6b3ec4b93e86ac/FLAGa3a592623 [2018-11-18 14:26:45,244 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/bin-2019/utaipan/data/bd5ad98d7/b0d51e001feb47b39b6b3ec4b93e86ac [2018-11-18 14:26:45,246 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:26:45,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:26:45,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:26:45,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:26:45,250 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:26:45,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:26:45" (1/1) ... [2018-11-18 14:26:45,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f8d50c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:45, skipping insertion in model container [2018-11-18 14:26:45,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:26:45" (1/1) ... [2018-11-18 14:26:45,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:26:45,276 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:26:45,408 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:26:45,414 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:26:45,429 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:26:45,440 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:26:45,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:45 WrapperNode [2018-11-18 14:26:45,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:26:45,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:26:45,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:26:45,441 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:26:45,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:45" (1/1) ... [2018-11-18 14:26:45,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:45" (1/1) ... [2018-11-18 14:26:45,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:26:45,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:26:45,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:26:45,457 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:26:45,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:45" (1/1) ... [2018-11-18 14:26:45,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:45" (1/1) ... [2018-11-18 14:26:45,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:45" (1/1) ... [2018-11-18 14:26:45,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:45" (1/1) ... [2018-11-18 14:26:45,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:45" (1/1) ... [2018-11-18 14:26:45,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:45" (1/1) ... [2018-11-18 14:26:45,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:45" (1/1) ... [2018-11-18 14:26:45,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:26:45,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:26:45,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:26:45,476 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:26:45,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/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 [2018-11-18 14:26:45,550 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:26:45,550 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:26:45,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 14:26:45,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 14:26:45,550 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2018-11-18 14:26:45,550 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2018-11-18 14:26:45,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:26:45,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:26:45,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 14:26:45,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:26:45,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:26:45,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:26:45,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 14:26:45,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 14:26:45,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 14:26:45,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:26:45,684 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:26:45,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:26:45 BoogieIcfgContainer [2018-11-18 14:26:45,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:26:45,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:26:45,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:26:45,688 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:26:45,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:26:45" (1/3) ... [2018-11-18 14:26:45,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5659e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:26:45, skipping insertion in model container [2018-11-18 14:26:45,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:45" (2/3) ... [2018-11-18 14:26:45,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5659e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:26:45, skipping insertion in model container [2018-11-18 14:26:45,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:26:45" (3/3) ... [2018-11-18 14:26:45,690 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_float_ptr_false-unreach-call_true-termination.c [2018-11-18 14:26:45,696 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:26:45,701 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:26:45,710 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:26:45,727 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:26:45,727 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:26:45,727 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:26:45,727 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:26:45,728 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:26:45,728 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:26:45,728 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:26:45,728 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:26:45,738 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-11-18 14:26:45,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 14:26:45,741 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:26:45,742 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:26:45,743 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:26:45,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:26:45,747 INFO L82 PathProgramCache]: Analyzing trace with hash -241609895, now seen corresponding path program 1 times [2018-11-18 14:26:45,748 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:26:45,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:45,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:26:45,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:26:45,777 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:26:45,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:26:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:26:45,856 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 14:26:45,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:26:45 BoogieIcfgContainer [2018-11-18 14:26:45,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:26:45,880 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:26:45,880 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:26:45,881 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:26:45,881 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:26:45" (3/4) ... [2018-11-18 14:26:45,883 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 14:26:45,883 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:26:45,884 INFO L168 Benchmark]: Toolchain (without parser) took 637.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -158.2 MB). Peak memory consumption was 4.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:26:45,885 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. [2018-11-18 14:26:45,885 INFO L168 Benchmark]: CACSL2BoogieTranslator took 192.40 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:26:45,886 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.43 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:26:45,887 INFO L168 Benchmark]: Boogie Preprocessor took 18.28 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:26:45,887 INFO L168 Benchmark]: RCFGBuilder took 208.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -194.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2018-11-18 14:26:45,887 INFO L168 Benchmark]: TraceAbstraction took 195.04 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: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2018-11-18 14:26:45,888 INFO L168 Benchmark]: Witness Printer took 2.83 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. [2018-11-18 14:26:45,890 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 192.40 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 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 16.43 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.28 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 208.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -194.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 195.04 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: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Witness Printer took 2.83 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.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) VAL [\old(d)=3758096388] [L8] FCALL double dmax; [L9] FCALL float f; [L11] EXPR, FCALL \read(d) VAL [\old(d)=3758096388, \read(d)=3758096385, d={3758096387:0}, dmax={3758096390:0}, f={3758096392:0}] [L11] COND FALSE !((((*(unsigned*)&d) & 0x7FF00000) >> 20) == 2047) [L13] FCALL ((unsigned*)&dmax)[0] = 0x47efffff [L14] FCALL ((unsigned*)&dmax)[1] = 0xe0000000 [L16] EXPR, FCALL \read(d) [L16] EXPR, FCALL \read(dmax) VAL [\old(d)=3758096388, \read(d)=3758096388, \read(dmax)=3758096389, d={3758096387:0}, dmax={3758096390:0}, f={3758096392:0}] [L16] COND FALSE !(d > dmax) [L19] EXPR, FCALL \read(d) [L19] EXPR, FCALL \read(dmax) VAL [\old(d)=3758096388, \read(d)=3758096388, \read(dmax)=3758096389, d={3758096387:0}, dmax={3758096390:0}, f={3758096392:0}] [L19] COND FALSE !(-d > dmax) [L23] EXPR, FCALL \read(d) [L23] EXPR d >= -3.41e38 && d <= 3.41e38 [L23] EXPR, FCALL \read(d) [L23] EXPR d >= -3.41e38 && d <= 3.41e38 VAL [\old(d)=3758096388, \read(d)=3758096388, \read(d)=3758096388, d={3758096387:0}, d >= -3.41e38 && d <= 3.41e38=0, dmax={3758096390:0}, f={3758096392:0}] [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 0.1.23-5842f4b [2018-11-18 14:26:47,294 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:26:47,296 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:26:47,305 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:26:47,305 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:26:47,306 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:26:47,306 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:26:47,308 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:26:47,309 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:26:47,309 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:26:47,310 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:26:47,310 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:26:47,311 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:26:47,312 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:26:47,312 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:26:47,313 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:26:47,314 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:26:47,316 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:26:47,317 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:26:47,318 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:26:47,319 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:26:47,320 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:26:47,322 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:26:47,322 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:26:47,322 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:26:47,323 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:26:47,324 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:26:47,324 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:26:47,325 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:26:47,326 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:26:47,326 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:26:47,327 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:26:47,327 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:26:47,327 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:26:47,328 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:26:47,328 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:26:47,329 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 14:26:47,340 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:26:47,340 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:26:47,341 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:26:47,341 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:26:47,341 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:26:47,341 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:26:47,342 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:26:47,342 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:26:47,342 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:26:47,342 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:26:47,343 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:26:47,343 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:26:47,343 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:26:47,343 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:26:47,343 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:26:47,343 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:26:47,344 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:26:47,344 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 14:26:47,344 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 14:26:47,344 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:26:47,344 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:26:47,344 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:26:47,344 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:26:47,345 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:26:47,345 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:26:47,345 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:26:47,345 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:26:47,345 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:26:47,345 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:26:47,345 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:26:47,345 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:26:47,346 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 14:26:47,346 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:26:47,346 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 14:26:47,346 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 14:26:47,346 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_a3bb46a5-fbac-4521-b201-4f1a79deba90/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 [2018-11-18 14:26:47,380 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:26:47,388 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:26:47,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:26:47,392 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:26:47,393 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:26:47,393 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/cast_float_ptr_false-unreach-call_true-termination.c [2018-11-18 14:26:47,437 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/bin-2019/utaipan/data/0c91bf7d6/6c169bb9887d4c0ab362b4ed80e702e8/FLAG1c5772cb0 [2018-11-18 14:26:47,760 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:26:47,761 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/sv-benchmarks/c/float-benchs/cast_float_ptr_false-unreach-call_true-termination.c [2018-11-18 14:26:47,764 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/bin-2019/utaipan/data/0c91bf7d6/6c169bb9887d4c0ab362b4ed80e702e8/FLAG1c5772cb0 [2018-11-18 14:26:48,194 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/bin-2019/utaipan/data/0c91bf7d6/6c169bb9887d4c0ab362b4ed80e702e8 [2018-11-18 14:26:48,195 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:26:48,196 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:26:48,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:26:48,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:26:48,199 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:26:48,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:26:48" (1/1) ... [2018-11-18 14:26:48,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@689feb36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:48, skipping insertion in model container [2018-11-18 14:26:48,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:26:48" (1/1) ... [2018-11-18 14:26:48,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:26:48,219 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:26:48,331 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:26:48,342 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:26:48,353 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:26:48,366 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:26:48,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:48 WrapperNode [2018-11-18 14:26:48,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:26:48,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:26:48,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:26:48,367 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:26:48,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:48" (1/1) ... [2018-11-18 14:26:48,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:48" (1/1) ... [2018-11-18 14:26:48,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:26:48,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:26:48,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:26:48,383 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:26:48,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:48" (1/1) ... [2018-11-18 14:26:48,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:48" (1/1) ... [2018-11-18 14:26:48,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:48" (1/1) ... [2018-11-18 14:26:48,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:48" (1/1) ... [2018-11-18 14:26:48,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:48" (1/1) ... [2018-11-18 14:26:48,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:48" (1/1) ... [2018-11-18 14:26:48,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:48" (1/1) ... [2018-11-18 14:26:48,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:26:48,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:26:48,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:26:48,402 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:26:48,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/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 [2018-11-18 14:26:48,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 14:26:48,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 14:26:48,477 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:26:48,477 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:26:48,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 14:26:48,477 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2018-11-18 14:26:48,477 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2018-11-18 14:26:48,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:26:48,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:26:48,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:26:48,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 14:26:48,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:26:48,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:26:48,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 14:26:48,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 14:26:48,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 14:26:48,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 14:26:48,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:26:48,593 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:26:48,699 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:26:48,723 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:26:48,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:26:48 BoogieIcfgContainer [2018-11-18 14:26:48,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:26:48,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:26:48,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:26:48,726 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:26:48,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:26:48" (1/3) ... [2018-11-18 14:26:48,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b663669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:26:48, skipping insertion in model container [2018-11-18 14:26:48,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:26:48" (2/3) ... [2018-11-18 14:26:48,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b663669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:26:48, skipping insertion in model container [2018-11-18 14:26:48,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:26:48" (3/3) ... [2018-11-18 14:26:48,728 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_float_ptr_false-unreach-call_true-termination.c [2018-11-18 14:26:48,734 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:26:48,738 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:26:48,747 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:26:48,767 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:26:48,767 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:26:48,767 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:26:48,768 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:26:48,768 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:26:48,768 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:26:48,768 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:26:48,768 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:26:48,768 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:26:48,779 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-11-18 14:26:48,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 14:26:48,783 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:26:48,783 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:26:48,785 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:26:48,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:26:48,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1713573888, now seen corresponding path program 1 times [2018-11-18 14:26:48,791 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:26:48,791 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/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 [2018-11-18 14:26:48,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:26:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:26:48,861 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:26:48,909 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 16 treesize of output 13 [2018-11-18 14:26:48,915 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 14:26:48,927 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:26:48,928 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:26:48,930 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 31 [2018-11-18 14:26:48,930 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:26:48,954 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:26:48,974 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:26:49,007 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 14:26:49,008 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:107, output treesize:107 [2018-11-18 14:26:49,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:26:49,174 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:26:49,183 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:26:49,183 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:26:49,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:26:49,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:26:49,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:26:49,195 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 5 states. [2018-11-18 14:26:49,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:26:49,577 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2018-11-18 14:26:49,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:26:49,583 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-11-18 14:26:49,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:26:49,588 INFO L225 Difference]: With dead ends: 44 [2018-11-18 14:26:49,588 INFO L226 Difference]: Without dead ends: 17 [2018-11-18 14:26:49,590 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:26:49,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-18 14:26:49,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-18 14:26:49,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-18 14:26:49,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2018-11-18 14:26:49,611 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 16 [2018-11-18 14:26:49,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:26:49,612 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2018-11-18 14:26:49,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:26:49,612 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2018-11-18 14:26:49,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 14:26:49,612 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:26:49,613 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:26:49,613 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:26:49,613 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:26:49,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1711726846, now seen corresponding path program 1 times [2018-11-18 14:26:49,614 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:26:49,614 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/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 [2018-11-18 14:26:49,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:26:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:26:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:26:49,727 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 14:26:49,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:26:49 BoogieIcfgContainer [2018-11-18 14:26:49,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:26:49,750 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:26:49,750 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:26:49,751 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:26:49,751 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:26:48" (3/4) ... [2018-11-18 14:26:49,752 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 14:26:49,781 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a3bb46a5-fbac-4521-b201-4f1a79deba90/bin-2019/utaipan/witness.graphml [2018-11-18 14:26:49,782 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:26:49,782 INFO L168 Benchmark]: Toolchain (without parser) took 1586.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 949.7 MB in the beginning and 986.9 MB in the end (delta: -37.2 MB). Peak memory consumption was 58.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:26:49,783 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. [2018-11-18 14:26:49,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.95 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:26:49,784 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.72 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:26:49,784 INFO L168 Benchmark]: Boogie Preprocessor took 18.80 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:26:49,785 INFO L168 Benchmark]: RCFGBuilder took 321.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -131.7 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:26:49,785 INFO L168 Benchmark]: TraceAbstraction took 1026.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 993.8 MB in the end (delta: 71.6 MB). Peak memory consumption was 71.6 MB. Max. memory is 11.5 GB. [2018-11-18 14:26:49,786 INFO L168 Benchmark]: Witness Printer took 31.32 ms. Allocated memory is still 1.1 GB. Free memory was 993.8 MB in the beginning and 986.9 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-18 14:26:49,788 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 169.95 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.72 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.80 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 321.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -131.7 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1026.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 993.8 MB in the end (delta: 71.6 MB). Peak memory consumption was 71.6 MB. Max. memory is 11.5 GB. * Witness Printer took 31.32 ms. Allocated memory is still 1.1 GB. Free memory was 993.8 MB in the beginning and 986.9 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.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) VAL [\old(d)=NaN] [L8] FCALL double dmax; [L9] FCALL float f; [L11] EXPR, FCALL \read(d) VAL [\old(d)=NaN, \read(d)=0, d={1:0}, dmax={2:0}, f={3:0}] [L11] COND FALSE !((((*(unsigned*)&d) & 0x7FF00000) >> 20) == 2047) [L13] FCALL ((unsigned*)&dmax)[0] = 0x47efffff [L14] FCALL ((unsigned*)&dmax)[1] = 0xe0000000 [L16] EXPR, FCALL \read(d) [L16] EXPR, FCALL \read(dmax) VAL [\old(d)=NaN, \read(d)=NaN, \read(dmax)=-26815623046150350000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, d={1:0}, dmax={2:0}, f={3:0}] [L16] COND FALSE !(d > dmax) [L19] EXPR, FCALL \read(d) [L19] EXPR, FCALL \read(dmax) VAL [\old(d)=NaN, \read(d)=NaN, \read(dmax)=-26815623046150350000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, d={1:0}, dmax={2:0}, f={3:0}] [L19] COND FALSE !(-d > dmax) [L23] EXPR, FCALL \read(d) [L23] EXPR d >= -3.41e38 && d <= 3.41e38 VAL [\old(d)=NaN, \read(d)=NaN, d={1:0}, d >= -3.41e38 && d <= 3.41e38=0, dmax={2:0}, f={3:0}] [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, 0.9s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 3 SDslu, 36 SDs, 0 SdLazy, 26 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 3 QuantifiedInterpolants, 5130 SizeOfPredicates, 3 NumberOfNonLiveVariables, 63 ConjunctsInSsa, 12 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...