./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cdfpl/square_1_false-unreach-call_true-termination.i --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_b07b9035-446e-4d4e-b3da-b6119c0a0f63/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_1_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/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 9b4984d971b5a5a3b565edf502e7d7464558f166 .............................................................................................................................................................................................................................................. 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_b07b9035-446e-4d4e-b3da-b6119c0a0f63/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_1_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/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 9b4984d971b5a5a3b565edf502e7d7464558f166 ................................................................................................................................................................................................................................. 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 13:36:21,913 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:36:21,914 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:36:21,922 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:36:21,922 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:36:21,923 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:36:21,924 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:36:21,925 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:36:21,926 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:36:21,926 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:36:21,927 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:36:21,927 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:36:21,928 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:36:21,928 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:36:21,929 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:36:21,930 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:36:21,930 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:36:21,931 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:36:21,932 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:36:21,933 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:36:21,934 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:36:21,935 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:36:21,936 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:36:21,936 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:36:21,937 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:36:21,937 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:36:21,938 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:36:21,938 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:36:21,939 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:36:21,940 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:36:21,940 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:36:21,940 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:36:21,940 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:36:21,940 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:36:21,941 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:36:21,941 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:36:21,942 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 13:36:21,951 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:36:21,951 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:36:21,952 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:36:21,952 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:36:21,952 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:36:21,952 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:36:21,952 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 13:36:21,952 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:36:21,953 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 13:36:21,953 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 13:36:21,953 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:36:21,953 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:36:21,953 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:36:21,954 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:36:21,954 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:36:21,954 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:36:21,954 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:36:21,954 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:36:21,954 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:36:21,954 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:36:21,954 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:36:21,955 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:36:21,955 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:36:21,955 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:36:21,955 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:36:21,955 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:36:21,955 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:36:21,955 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:36:21,955 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:36:21,956 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:36:21,956 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 13:36:21,956 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:36:21,956 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:36:21,956 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 13:36:21,956 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_b07b9035-446e-4d4e-b3da-b6119c0a0f63/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 -> 9b4984d971b5a5a3b565edf502e7d7464558f166 [2018-11-10 13:36:21,982 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:36:21,991 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:36:21,994 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:36:21,994 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:36:21,995 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:36:21,995 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/bin-2019/utaipan/../../sv-benchmarks/c/floats-cdfpl/square_1_false-unreach-call_true-termination.i [2018-11-10 13:36:22,038 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/bin-2019/utaipan/data/2f574b9d9/4aff17a3f9b440c7a85047599fb8d993/FLAG615dfd944 [2018-11-10 13:36:22,448 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:36:22,449 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/sv-benchmarks/c/floats-cdfpl/square_1_false-unreach-call_true-termination.i [2018-11-10 13:36:22,454 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/bin-2019/utaipan/data/2f574b9d9/4aff17a3f9b440c7a85047599fb8d993/FLAG615dfd944 [2018-11-10 13:36:22,465 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/bin-2019/utaipan/data/2f574b9d9/4aff17a3f9b440c7a85047599fb8d993 [2018-11-10 13:36:22,467 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:36:22,469 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:36:22,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:36:22,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:36:22,472 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:36:22,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:36:22" (1/1) ... [2018-11-10 13:36:22,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1240e5ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:22, skipping insertion in model container [2018-11-10 13:36:22,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:36:22" (1/1) ... [2018-11-10 13:36:22,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:36:22,496 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:36:22,587 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:36:22,589 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:36:22,598 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:36:22,606 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:36:22,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:22 WrapperNode [2018-11-10 13:36:22,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:36:22,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:36:22,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:36:22,607 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:36:22,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:22" (1/1) ... [2018-11-10 13:36:22,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:22" (1/1) ... [2018-11-10 13:36:22,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:36:22,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:36:22,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:36:22,620 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:36:22,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:22" (1/1) ... [2018-11-10 13:36:22,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:22" (1/1) ... [2018-11-10 13:36:22,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:22" (1/1) ... [2018-11-10 13:36:22,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:22" (1/1) ... [2018-11-10 13:36:22,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:22" (1/1) ... [2018-11-10 13:36:22,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:22" (1/1) ... [2018-11-10 13:36:22,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:22" (1/1) ... [2018-11-10 13:36:22,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:36:22,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:36:22,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:36:22,630 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:36:22,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/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 13:36:22,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:36:22,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:36:22,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:36:22,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:36:22,705 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:36:22,705 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:36:22,775 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:36:22,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:36:22 BoogieIcfgContainer [2018-11-10 13:36:22,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:36:22,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:36:22,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:36:22,777 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:36:22,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:36:22" (1/3) ... [2018-11-10 13:36:22,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d261e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:36:22, skipping insertion in model container [2018-11-10 13:36:22,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:22" (2/3) ... [2018-11-10 13:36:22,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d261e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:36:22, skipping insertion in model container [2018-11-10 13:36:22,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:36:22" (3/3) ... [2018-11-10 13:36:22,779 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1_false-unreach-call_true-termination.i [2018-11-10 13:36:22,785 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:36:22,789 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:36:22,797 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:36:22,815 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:36:22,815 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:36:22,815 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:36:22,815 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:36:22,815 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:36:22,815 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:36:22,816 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:36:22,816 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:36:22,825 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-10 13:36:22,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 13:36:22,828 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:36:22,829 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:36:22,830 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:36:22,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:36:22,833 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-11-10 13:36:22,835 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:36:22,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:36:22,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:36:22,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:36:22,864 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:36:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:36:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:36:22,900 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 13:36:22,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:36:22 BoogieIcfgContainer [2018-11-10 13:36:22,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:36:22,914 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:36:22,914 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:36:22,914 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:36:22,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:36:22" (3/4) ... [2018-11-10 13:36:22,917 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 13:36:22,917 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:36:22,918 INFO L168 Benchmark]: Toolchain (without parser) took 450.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 953.8 MB in the beginning and 1.1 GB in the end (delta: -154.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:36:22,919 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:36:22,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.20 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:36:22,920 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.98 ms. Allocated memory is still 1.0 GB. Free memory is still 943.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:36:22,920 INFO L168 Benchmark]: Boogie Preprocessor took 10.36 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:36:22,921 INFO L168 Benchmark]: RCFGBuilder took 144.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -181.6 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2018-11-10 13:36:22,921 INFO L168 Benchmark]: TraceAbstraction took 138.46 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-10 13:36:22,922 INFO L168 Benchmark]: Witness Printer took 3.43 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 13:36:22,924 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 137.20 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 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 12.98 ms. Allocated memory is still 1.0 GB. Free memory is still 943.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.36 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 144.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -181.6 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 138.46 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.43 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: 15]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 12. Possible FailurePath: [L6] float IN = __VERIFIER_nondet_float(); [L9] float x = IN; [L11-L12] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0, x=0] [L14] COND TRUE !(result >= 0.0f && result < 1.39f) VAL [IN=0, x=0] [L15] __VERIFIER_error() VAL [IN=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 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=13occurred 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, 7 NumberOfCodeBlocks, 7 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 13:36:24,387 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:36:24,388 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:36:24,397 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:36:24,397 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:36:24,398 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:36:24,399 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:36:24,400 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:36:24,401 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:36:24,402 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:36:24,402 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:36:24,402 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:36:24,403 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:36:24,404 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:36:24,405 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:36:24,405 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:36:24,406 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:36:24,407 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:36:24,408 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:36:24,409 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:36:24,410 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:36:24,411 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:36:24,413 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:36:24,413 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:36:24,413 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:36:24,414 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:36:24,414 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:36:24,415 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:36:24,415 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:36:24,416 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:36:24,416 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:36:24,417 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:36:24,417 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:36:24,417 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:36:24,418 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:36:24,418 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:36:24,418 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 13:36:24,429 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:36:24,429 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:36:24,429 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:36:24,430 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:36:24,430 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:36:24,430 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:36:24,430 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:36:24,430 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:36:24,431 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:36:24,431 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:36:24,431 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:36:24,431 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:36:24,431 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:36:24,431 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:36:24,432 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:36:24,432 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 13:36:24,432 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 13:36:24,432 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:36:24,432 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:36:24,432 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:36:24,432 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:36:24,433 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:36:24,433 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:36:24,433 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:36:24,433 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:36:24,433 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:36:24,433 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:36:24,433 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:36:24,434 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 13:36:24,434 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:36:24,434 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 13:36:24,434 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 13:36:24,434 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_b07b9035-446e-4d4e-b3da-b6119c0a0f63/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 -> 9b4984d971b5a5a3b565edf502e7d7464558f166 [2018-11-10 13:36:24,463 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:36:24,472 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:36:24,475 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:36:24,476 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:36:24,477 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:36:24,477 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/bin-2019/utaipan/../../sv-benchmarks/c/floats-cdfpl/square_1_false-unreach-call_true-termination.i [2018-11-10 13:36:24,521 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/bin-2019/utaipan/data/dcaa3ccad/40f4f21c7b674db6a291d84c66a59689/FLAG4df18d8bf [2018-11-10 13:36:24,845 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:36:24,845 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/sv-benchmarks/c/floats-cdfpl/square_1_false-unreach-call_true-termination.i [2018-11-10 13:36:24,849 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/bin-2019/utaipan/data/dcaa3ccad/40f4f21c7b674db6a291d84c66a59689/FLAG4df18d8bf [2018-11-10 13:36:24,857 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/bin-2019/utaipan/data/dcaa3ccad/40f4f21c7b674db6a291d84c66a59689 [2018-11-10 13:36:24,859 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:36:24,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:36:24,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:36:24,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:36:24,863 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:36:24,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:36:24" (1/1) ... [2018-11-10 13:36:24,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5274bf7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:24, skipping insertion in model container [2018-11-10 13:36:24,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:36:24" (1/1) ... [2018-11-10 13:36:24,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:36:24,882 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:36:24,998 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:36:25,003 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:36:25,016 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:36:25,025 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:36:25,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:25 WrapperNode [2018-11-10 13:36:25,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:36:25,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:36:25,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:36:25,026 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:36:25,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:25" (1/1) ... [2018-11-10 13:36:25,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:25" (1/1) ... [2018-11-10 13:36:25,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:36:25,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:36:25,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:36:25,041 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:36:25,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:25" (1/1) ... [2018-11-10 13:36:25,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:25" (1/1) ... [2018-11-10 13:36:25,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:25" (1/1) ... [2018-11-10 13:36:25,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:25" (1/1) ... [2018-11-10 13:36:25,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:25" (1/1) ... [2018-11-10 13:36:25,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:25" (1/1) ... [2018-11-10 13:36:25,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:25" (1/1) ... [2018-11-10 13:36:25,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:36:25,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:36:25,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:36:25,055 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:36:25,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/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 13:36:25,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:36:25,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:36:25,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:36:25,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:36:25,089 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:36:25,089 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:36:27,265 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:36:27,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:36:27 BoogieIcfgContainer [2018-11-10 13:36:27,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:36:27,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:36:27,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:36:27,269 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:36:27,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:36:24" (1/3) ... [2018-11-10 13:36:27,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1140321f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:36:27, skipping insertion in model container [2018-11-10 13:36:27,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:36:25" (2/3) ... [2018-11-10 13:36:27,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1140321f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:36:27, skipping insertion in model container [2018-11-10 13:36:27,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:36:27" (3/3) ... [2018-11-10 13:36:27,272 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1_false-unreach-call_true-termination.i [2018-11-10 13:36:27,277 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:36:27,282 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:36:27,290 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:36:27,308 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 13:36:27,309 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:36:27,309 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:36:27,309 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:36:27,309 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:36:27,309 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:36:27,309 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:36:27,310 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:36:27,310 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:36:27,321 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-10 13:36:27,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 13:36:27,325 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:36:27,325 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:36:27,327 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:36:27,330 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:36:27,330 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-11-10 13:36:27,333 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:36:27,333 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/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 13:36:27,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:36:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:37:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:37:28,071 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 13:37:28,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:37:28 BoogieIcfgContainer [2018-11-10 13:37:28,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:37:28,088 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:37:28,088 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:37:28,088 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:37:28,088 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:36:27" (3/4) ... [2018-11-10 13:37:28,090 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 13:37:28,119 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b07b9035-446e-4d4e-b3da-b6119c0a0f63/bin-2019/utaipan/witness.graphml [2018-11-10 13:37:28,119 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:37:28,119 INFO L168 Benchmark]: Toolchain (without parser) took 63260.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -143.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:37:28,120 INFO L168 Benchmark]: CDTParser took 0.15 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 13:37:28,120 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.98 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:37:28,121 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.63 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:37:28,121 INFO L168 Benchmark]: Boogie Preprocessor took 14.51 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:37:28,121 INFO L168 Benchmark]: RCFGBuilder took 2210.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:37:28,122 INFO L168 Benchmark]: TraceAbstraction took 60821.32 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2018-11-10 13:37:28,122 INFO L168 Benchmark]: Witness Printer took 31.22 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 13:37:28,124 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 164.98 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 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 14.63 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.51 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2210.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 60821.32 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Witness Printer took 31.22 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: - CounterExampleResult [Line: 15]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L6] float IN = __VERIFIER_nondet_float(); [L9] float x = IN; [L11-L12] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0.9999998807907104, result=1.3984375, x=0.9999998807907104] [L14] COND TRUE !(result >= 0.0f && result < 1.39f) VAL [IN=0.9999998807907104, result=1.3984375, x=0.9999998807907104] [L15] __VERIFIER_error() VAL [IN=0.9999998807907104, result=1.3984375, x=0.9999998807907104] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. UNSAFE Result, 60.7s 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=13occurred 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, 30.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 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 proved your program to be incorrect! Received shutdown request...