./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-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_2c84f861-2750-4b11-9d86-73fbb77650cd/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/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 4e4f711715c9ba9b74051d365fc69961816436d0 ......................................................................................................................................................................................................................................... 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_2c84f861-2750-4b11-9d86-73fbb77650cd/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/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 4e4f711715c9ba9b74051d365fc69961816436d0 .................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 12:03:34,009 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:03:34,010 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:03:34,018 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:03:34,019 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:03:34,019 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:03:34,020 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:03:34,021 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:03:34,022 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:03:34,023 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:03:34,024 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:03:34,024 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:03:34,024 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:03:34,025 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:03:34,026 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:03:34,026 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:03:34,027 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:03:34,028 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:03:34,030 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:03:34,031 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:03:34,032 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:03:34,032 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:03:34,034 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:03:34,034 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:03:34,034 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:03:34,035 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:03:34,035 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:03:34,036 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:03:34,036 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:03:34,037 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:03:34,037 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:03:34,038 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:03:34,038 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:03:34,038 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:03:34,038 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:03:34,039 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:03:34,039 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 12:03:34,048 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:03:34,048 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:03:34,049 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:03:34,049 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 12:03:34,049 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 12:03:34,049 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 12:03:34,049 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 12:03:34,049 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 12:03:34,050 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 12:03:34,050 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 12:03:34,050 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 12:03:34,050 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:03:34,050 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:03:34,051 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:03:34,051 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:03:34,051 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:03:34,051 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:03:34,051 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:03:34,051 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:03:34,051 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:03:34,051 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:03:34,052 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:03:34,052 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:03:34,052 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:03:34,052 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:03:34,052 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:03:34,052 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:03:34,052 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:03:34,052 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:03:34,053 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:03:34,053 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 12:03:34,053 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:03:34,053 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 12:03:34,053 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 12:03:34,053 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_2c84f861-2750-4b11-9d86-73fbb77650cd/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 -> 4e4f711715c9ba9b74051d365fc69961816436d0 [2018-11-10 12:03:34,076 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:03:34,085 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:03:34,088 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:03:34,089 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:03:34,089 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:03:34,090 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-11-10 12:03:34,137 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/bin-2019/utaipan/data/4336287fd/0a5567699e334a3b951a8b76a31e1fec/FLAGa817d9892 [2018-11-10 12:03:34,534 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:03:34,535 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-11-10 12:03:34,538 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/bin-2019/utaipan/data/4336287fd/0a5567699e334a3b951a8b76a31e1fec/FLAGa817d9892 [2018-11-10 12:03:34,547 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/bin-2019/utaipan/data/4336287fd/0a5567699e334a3b951a8b76a31e1fec [2018-11-10 12:03:34,549 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:03:34,550 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 12:03:34,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:03:34,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:03:34,554 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:03:34,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:03:34" (1/1) ... [2018-11-10 12:03:34,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2290f2d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:34, skipping insertion in model container [2018-11-10 12:03:34,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:03:34" (1/1) ... [2018-11-10 12:03:34,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:03:34,572 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:03:34,663 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:03:34,666 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:03:34,674 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:03:34,682 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:03:34,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:34 WrapperNode [2018-11-10 12:03:34,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:03:34,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 12:03:34,683 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 12:03:34,683 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 12:03:34,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:34" (1/1) ... [2018-11-10 12:03:34,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:34" (1/1) ... [2018-11-10 12:03:34,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 12:03:34,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:03:34,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:03:34,695 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:03:34,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:34" (1/1) ... [2018-11-10 12:03:34,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:34" (1/1) ... [2018-11-10 12:03:34,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:34" (1/1) ... [2018-11-10 12:03:34,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:34" (1/1) ... [2018-11-10 12:03:34,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:34" (1/1) ... [2018-11-10 12:03:34,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:34" (1/1) ... [2018-11-10 12:03:34,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:34" (1/1) ... [2018-11-10 12:03:34,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:03:34,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:03:34,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:03:34,705 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:03:34,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/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 12:03:34,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:03:34,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:03:34,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:03:34,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:03:34,795 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:03:34,796 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:03:34,878 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:03:34,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:03:34 BoogieIcfgContainer [2018-11-10 12:03:34,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:03:34,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:03:34,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:03:34,882 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:03:34,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:03:34" (1/3) ... [2018-11-10 12:03:34,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@170e0f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:03:34, skipping insertion in model container [2018-11-10 12:03:34,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:34" (2/3) ... [2018-11-10 12:03:34,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@170e0f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:03:34, skipping insertion in model container [2018-11-10 12:03:34,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:03:34" (3/3) ... [2018-11-10 12:03:34,885 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp3_true-unreach-call_true-termination.i [2018-11-10 12:03:34,890 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:03:34,896 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 12:03:34,905 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 12:03:34,925 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:03:34,926 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:03:34,926 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:03:34,926 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:03:34,926 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:03:34,926 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:03:34,926 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:03:34,926 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:03:34,937 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-10 12:03:34,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 12:03:34,940 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:03:34,941 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:03:34,943 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:03:34,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:03:34,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-11-10 12:03:34,949 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:03:34,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:03:34,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:03:34,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:03:34,977 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:03:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:03:34,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:03:35,006 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 12:03:35,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:03:35 BoogieIcfgContainer [2018-11-10 12:03:35,016 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:03:35,016 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:03:35,016 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:03:35,016 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:03:35,017 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:03:34" (3/4) ... [2018-11-10 12:03:35,019 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 12:03:35,019 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:03:35,020 INFO L168 Benchmark]: Toolchain (without parser) took 470.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.0 MB). Free memory was 952.7 MB in the beginning and 1.2 GB in the end (delta: -207.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:03:35,021 INFO L168 Benchmark]: CDTParser took 0.17 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 12:03:35,022 INFO L168 Benchmark]: CACSL2BoogieTranslator took 131.48 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:03:35,023 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.67 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:03:35,023 INFO L168 Benchmark]: Boogie Preprocessor took 9.71 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:03:35,023 INFO L168 Benchmark]: RCFGBuilder took 174.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.0 MB). Free memory was 942.0 MB in the beginning and 1.2 GB in the end (delta: -231.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-11-10 12:03:35,024 INFO L168 Benchmark]: TraceAbstraction took 136.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-11-10 12:03:35,024 INFO L168 Benchmark]: Witness Printer took 3.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:03:35,027 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 131.48 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 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 11.67 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.71 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 174.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.0 MB). Free memory was 942.0 MB in the beginning and 1.2 GB in the end (delta: -231.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 136.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 8, overapproximation of someBinaryArithmeticFLOAToperation at line 6. Possible FailurePath: [L6] float fs1=2.0f/6.0f; [L7] float fs2=fs1*6.0f; [L8] COND TRUE !((int)fs2==2) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 locations, 1 error locations. UNSAFE Result, 0.0s 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=12occurred 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 12:03:36,429 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:03:36,431 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:03:36,439 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:03:36,440 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:03:36,440 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:03:36,441 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:03:36,443 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:03:36,444 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:03:36,444 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:03:36,445 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:03:36,445 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:03:36,446 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:03:36,446 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:03:36,447 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:03:36,448 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:03:36,448 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:03:36,450 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:03:36,451 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:03:36,452 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:03:36,453 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:03:36,454 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:03:36,455 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:03:36,456 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:03:36,456 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:03:36,456 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:03:36,457 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:03:36,458 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:03:36,458 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:03:36,459 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:03:36,459 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:03:36,460 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:03:36,460 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:03:36,460 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:03:36,461 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:03:36,461 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:03:36,461 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 12:03:36,472 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:03:36,472 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:03:36,473 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:03:36,473 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 12:03:36,473 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 12:03:36,473 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 12:03:36,473 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 12:03:36,473 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 12:03:36,474 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:03:36,474 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:03:36,474 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:03:36,474 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:03:36,475 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:03:36,475 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:03:36,475 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:03:36,475 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 12:03:36,475 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 12:03:36,475 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:03:36,475 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:03:36,476 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:03:36,476 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:03:36,476 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:03:36,476 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:03:36,476 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:03:36,476 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:03:36,476 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:03:36,477 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:03:36,477 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:03:36,477 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 12:03:36,477 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:03:36,477 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 12:03:36,477 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 12:03:36,477 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_2c84f861-2750-4b11-9d86-73fbb77650cd/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 -> 4e4f711715c9ba9b74051d365fc69961816436d0 [2018-11-10 12:03:36,511 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:03:36,520 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:03:36,523 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:03:36,524 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:03:36,524 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:03:36,525 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-11-10 12:03:36,569 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/bin-2019/utaipan/data/23a556dd6/4e38708a795848aa83ccc50aa106b240/FLAGbbdc6ac76 [2018-11-10 12:03:36,898 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:03:36,898 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-11-10 12:03:36,901 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/bin-2019/utaipan/data/23a556dd6/4e38708a795848aa83ccc50aa106b240/FLAGbbdc6ac76 [2018-11-10 12:03:36,913 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/bin-2019/utaipan/data/23a556dd6/4e38708a795848aa83ccc50aa106b240 [2018-11-10 12:03:36,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:03:36,916 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 12:03:36,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:03:36,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:03:36,919 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:03:36,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:03:36" (1/1) ... [2018-11-10 12:03:36,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@642d184b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:36, skipping insertion in model container [2018-11-10 12:03:36,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:03:36" (1/1) ... [2018-11-10 12:03:36,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:03:36,940 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:03:37,040 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:03:37,045 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:03:37,057 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:03:37,068 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:03:37,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:37 WrapperNode [2018-11-10 12:03:37,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:03:37,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 12:03:37,070 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 12:03:37,070 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 12:03:37,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:37" (1/1) ... [2018-11-10 12:03:37,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:37" (1/1) ... [2018-11-10 12:03:37,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 12:03:37,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:03:37,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:03:37,087 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:03:37,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:37" (1/1) ... [2018-11-10 12:03:37,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:37" (1/1) ... [2018-11-10 12:03:37,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:37" (1/1) ... [2018-11-10 12:03:37,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:37" (1/1) ... [2018-11-10 12:03:37,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:37" (1/1) ... [2018-11-10 12:03:37,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:37" (1/1) ... [2018-11-10 12:03:37,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:37" (1/1) ... [2018-11-10 12:03:37,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:03:37,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:03:37,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:03:37,102 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:03:37,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/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 12:03:37,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:03:37,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:03:37,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:03:37,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:03:37,136 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:03:37,137 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:03:37,278 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:03:37,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:03:37 BoogieIcfgContainer [2018-11-10 12:03:37,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:03:37,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:03:37,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:03:37,282 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:03:37,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:03:36" (1/3) ... [2018-11-10 12:03:37,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275422a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:03:37, skipping insertion in model container [2018-11-10 12:03:37,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:03:37" (2/3) ... [2018-11-10 12:03:37,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275422a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:03:37, skipping insertion in model container [2018-11-10 12:03:37,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:03:37" (3/3) ... [2018-11-10 12:03:37,285 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp3_true-unreach-call_true-termination.i [2018-11-10 12:03:37,291 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:03:37,295 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 12:03:37,305 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 12:03:37,323 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 12:03:37,323 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:03:37,323 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:03:37,323 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:03:37,323 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:03:37,324 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:03:37,324 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:03:37,324 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:03:37,324 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:03:37,336 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-10 12:03:37,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 12:03:37,339 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:03:37,340 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:03:37,342 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:03:37,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:03:37,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-11-10 12:03:37,350 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 12:03:37,351 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/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 12:03:37,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:03:37,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:03:37,402 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:03:37,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:03:37,432 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 12:03:37,444 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:03:37,444 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 12:03:37,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 12:03:37,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 12:03:37,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:03:37,458 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2018-11-10 12:03:37,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:03:37,477 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2018-11-10 12:03:37,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 12:03:37,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-10 12:03:37,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:03:37,484 INFO L225 Difference]: With dead ends: 16 [2018-11-10 12:03:37,484 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 12:03:37,486 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:03:37,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 12:03:37,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 12:03:37,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 12:03:37,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 12:03:37,507 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-11-10 12:03:37,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:03:37,507 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 12:03:37,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 12:03:37,507 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 12:03:37,507 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 12:03:37,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 12:03:37,547 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 12:03:37,547 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 12:03:37,547 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 12:03:37,547 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 12:03:37,548 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 12:03:37,548 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 12:03:37,548 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 3 9) the Hoare annotation is: true [2018-11-10 12:03:37,548 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2018-11-10 12:03:37,548 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 3 9) no Hoare annotation was computed. [2018-11-10 12:03:37,548 INFO L425 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-11-10 12:03:37,548 INFO L425 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2018-11-10 12:03:37,548 INFO L425 ceAbstractionStarter]: For program point L8-3(lines 3 9) no Hoare annotation was computed. [2018-11-10 12:03:37,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:03:37 BoogieIcfgContainer [2018-11-10 12:03:37,551 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:03:37,551 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:03:37,551 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:03:37,551 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:03:37,552 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:03:37" (3/4) ... [2018-11-10 12:03:37,554 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 12:03:37,559 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 12:03:37,559 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 12:03:37,561 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-10 12:03:37,561 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 12:03:37,562 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 12:03:37,585 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2c84f861-2750-4b11-9d86-73fbb77650cd/bin-2019/utaipan/witness.graphml [2018-11-10 12:03:37,585 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:03:37,586 INFO L168 Benchmark]: Toolchain (without parser) took 670.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 948.6 MB in the beginning and 1.1 GB in the end (delta: -142.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:03:37,587 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:03:37,587 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.94 ms. Allocated memory is still 1.0 GB. Free memory was 948.6 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:03:37,588 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.13 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:03:37,588 INFO L168 Benchmark]: Boogie Preprocessor took 14.71 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 12:03:37,588 INFO L168 Benchmark]: RCFGBuilder took 177.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 932.5 MB in the beginning and 1.1 GB in the end (delta: -186.0 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2018-11-10 12:03:37,591 INFO L168 Benchmark]: TraceAbstraction took 271.22 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: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2018-11-10 12:03:37,591 INFO L168 Benchmark]: Witness Printer took 34.19 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 12:03:37,593 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 152.94 ms. Allocated memory is still 1.0 GB. Free memory was 948.6 MB in the beginning and 937.9 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 17.13 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.71 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 177.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 932.5 MB in the beginning and 1.1 GB in the end (delta: -186.0 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 271.22 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: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * Witness Printer took 34.19 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: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 locations, 1 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 2 NumberOfNonLiveVariables, 14 ConjunctsInSsa, 3 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 correct! Received shutdown request...