./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_86663312-a6a3-4e29-8a2b-3be8902e85c0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/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_86663312-a6a3-4e29-8a2b-3be8902e85c0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/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_86663312-a6a3-4e29-8a2b-3be8902e85c0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/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_86663312-a6a3-4e29-8a2b-3be8902e85c0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/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 [2018-10-27 00:39:11,088 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:39:11,090 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:39:11,099 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:39:11,099 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:39:11,100 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:39:11,101 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:39:11,102 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:39:11,103 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:39:11,104 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:39:11,104 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:39:11,105 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:39:11,105 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:39:11,107 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:39:11,108 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:39:11,108 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:39:11,109 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:39:11,110 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:39:11,112 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:39:11,113 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:39:11,113 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:39:11,115 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:39:11,116 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:39:11,117 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:39:11,117 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:39:11,117 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:39:11,119 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:39:11,119 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:39:11,120 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:39:11,121 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:39:11,121 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:39:11,121 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:39:11,122 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:39:11,122 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:39:11,123 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:39:11,124 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:39:11,124 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-27 00:39:11,135 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:39:11,135 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:39:11,136 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:39:11,136 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:39:11,136 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:39:11,136 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:39:11,136 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 00:39:11,137 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:39:11,137 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 00:39:11,137 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 00:39:11,137 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:39:11,137 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:39:11,137 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:39:11,138 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:39:11,139 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:39:11,139 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:39:11,139 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:39:11,139 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:39:11,139 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:39:11,140 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:39:11,140 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:39:11,140 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:39:11,140 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:39:11,140 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:39:11,140 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:39:11,140 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:39:11,141 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:39:11,141 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:39:11,141 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:39:11,141 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:39:11,141 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 00:39:11,141 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:39:11,141 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:39:11,141 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 00:39:11,142 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_86663312-a6a3-4e29-8a2b-3be8902e85c0/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 [2018-10-27 00:39:11,169 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:39:11,179 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:39:11,182 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:39:11,183 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:39:11,184 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:39:11,184 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-10-27 00:39:11,231 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/bin-2019/utaipan/data/cf4e6aae2/00606093d1b64f1794834f2e38e576d7/FLAG1c84be0fb [2018-10-27 00:39:11,628 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:39:11,628 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-10-27 00:39:11,634 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/bin-2019/utaipan/data/cf4e6aae2/00606093d1b64f1794834f2e38e576d7/FLAG1c84be0fb [2018-10-27 00:39:11,646 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/bin-2019/utaipan/data/cf4e6aae2/00606093d1b64f1794834f2e38e576d7 [2018-10-27 00:39:11,649 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:39:11,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:39:11,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:39:11,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:39:11,654 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:39:11,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:39:11" (1/1) ... [2018-10-27 00:39:11,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4eb8e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:11, skipping insertion in model container [2018-10-27 00:39:11,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:39:11" (1/1) ... [2018-10-27 00:39:11,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:39:11,681 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:39:11,793 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:39:11,797 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:39:11,809 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:39:11,821 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:39:11,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:11 WrapperNode [2018-10-27 00:39:11,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:39:11,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:39:11,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:39:11,823 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:39:11,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:11" (1/1) ... [2018-10-27 00:39:11,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:11" (1/1) ... [2018-10-27 00:39:11,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:39:11,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:39:11,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:39:11,842 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:39:11,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:11" (1/1) ... [2018-10-27 00:39:11,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:11" (1/1) ... [2018-10-27 00:39:11,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:11" (1/1) ... [2018-10-27 00:39:11,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:11" (1/1) ... [2018-10-27 00:39:11,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:11" (1/1) ... [2018-10-27 00:39:11,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:11" (1/1) ... [2018-10-27 00:39:11,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:11" (1/1) ... [2018-10-27 00:39:11,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:39:11,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:39:11,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:39:11,859 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:39:11,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/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 [2018-10-27 00:39:11,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:39:11,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:39:11,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:39:11,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:39:11,971 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:39:11,971 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:39:12,205 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:39:12,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:39:12 BoogieIcfgContainer [2018-10-27 00:39:12,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:39:12,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:39:12,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:39:12,209 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:39:12,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:39:11" (1/3) ... [2018-10-27 00:39:12,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@207d9523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:39:12, skipping insertion in model container [2018-10-27 00:39:12,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:11" (2/3) ... [2018-10-27 00:39:12,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@207d9523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:39:12, skipping insertion in model container [2018-10-27 00:39:12,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:39:12" (3/3) ... [2018-10-27 00:39:12,212 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp3_true-unreach-call_true-termination.i [2018-10-27 00:39:12,224 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:39:12,231 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:39:12,247 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:39:12,273 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:39:12,273 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:39:12,274 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:39:12,274 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:39:12,274 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:39:12,274 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:39:12,274 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:39:12,274 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:39:12,288 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-10-27 00:39:12,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-27 00:39:12,293 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:39:12,294 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:39:12,296 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:39:12,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:39:12,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-10-27 00:39:12,303 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:39:12,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:39:12,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:39:12,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:39:12,344 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:39:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 00:39:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 00:39:12,381 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-27 00:39:12,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:39:12 BoogieIcfgContainer [2018-10-27 00:39:12,395 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:39:12,395 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:39:12,395 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:39:12,395 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:39:12,396 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:39:12" (3/4) ... [2018-10-27 00:39:12,399 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 00:39:12,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:39:12,400 INFO L168 Benchmark]: Toolchain (without parser) took 750.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 960.7 MB in the beginning and 1.1 GB in the end (delta: -166.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:39:12,401 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:39:12,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.23 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 948.9 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2018-10-27 00:39:12,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.10 ms. Allocated memory is still 1.0 GB. Free memory is still 948.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:39:12,403 INFO L168 Benchmark]: Boogie Preprocessor took 16.66 ms. Allocated memory is still 1.0 GB. Free memory is still 948.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:39:12,403 INFO L168 Benchmark]: RCFGBuilder took 346.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -193.7 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2018-10-27 00:39:12,404 INFO L168 Benchmark]: TraceAbstraction took 188.38 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: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-10-27 00:39:12,405 INFO L168 Benchmark]: Witness Printer took 4.02 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. [2018-10-27 00:39:12,408 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 171.23 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 948.9 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.10 ms. Allocated memory is still 1.0 GB. Free memory is still 948.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.66 ms. Allocated memory is still 1.0 GB. Free memory is still 948.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 346.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -193.7 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 188.38 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: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.02 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: 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, 0.1s 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=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 [2018-10-27 00:39:14,225 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:39:14,226 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:39:14,236 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:39:14,236 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:39:14,237 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:39:14,238 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:39:14,239 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:39:14,240 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:39:14,241 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:39:14,241 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:39:14,242 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:39:14,242 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:39:14,243 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:39:14,244 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:39:14,245 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:39:14,245 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:39:14,246 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:39:14,248 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:39:14,249 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:39:14,250 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:39:14,250 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:39:14,252 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:39:14,252 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:39:14,252 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:39:14,253 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:39:14,254 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:39:14,255 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:39:14,255 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:39:14,256 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:39:14,256 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:39:14,257 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:39:14,257 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:39:14,257 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:39:14,258 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:39:14,258 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:39:14,259 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-27 00:39:14,269 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:39:14,270 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:39:14,270 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:39:14,271 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:39:14,271 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:39:14,271 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:39:14,271 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:39:14,271 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:39:14,272 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:39:14,272 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:39:14,272 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:39:14,272 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:39:14,272 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:39:14,273 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:39:14,273 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:39:14,273 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-27 00:39:14,273 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-27 00:39:14,273 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:39:14,273 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:39:14,273 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:39:14,277 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:39:14,278 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:39:14,278 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:39:14,278 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:39:14,278 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:39:14,278 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:39:14,278 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:39:14,279 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:39:14,279 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-27 00:39:14,279 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:39:14,279 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-27 00:39:14,279 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-27 00:39:14,279 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_86663312-a6a3-4e29-8a2b-3be8902e85c0/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 [2018-10-27 00:39:14,313 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:39:14,322 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:39:14,325 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:39:14,326 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:39:14,326 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:39:14,327 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-10-27 00:39:14,366 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/bin-2019/utaipan/data/a331e2a86/4b716d1581214116a7a956c313d25cab/FLAG8cfd676c7 [2018-10-27 00:39:14,732 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:39:14,733 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-10-27 00:39:14,737 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/bin-2019/utaipan/data/a331e2a86/4b716d1581214116a7a956c313d25cab/FLAG8cfd676c7 [2018-10-27 00:39:14,748 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/bin-2019/utaipan/data/a331e2a86/4b716d1581214116a7a956c313d25cab [2018-10-27 00:39:14,751 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:39:14,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:39:14,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:39:14,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:39:14,756 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:39:14,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:39:14" (1/1) ... [2018-10-27 00:39:14,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ae54847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:14, skipping insertion in model container [2018-10-27 00:39:14,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:39:14" (1/1) ... [2018-10-27 00:39:14,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:39:14,779 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:39:14,911 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:39:14,917 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:39:14,930 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:39:14,944 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:39:14,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:14 WrapperNode [2018-10-27 00:39:14,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:39:14,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:39:14,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:39:14,945 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:39:14,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:14" (1/1) ... [2018-10-27 00:39:14,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:14" (1/1) ... [2018-10-27 00:39:14,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:39:14,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:39:14,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:39:14,964 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:39:14,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:14" (1/1) ... [2018-10-27 00:39:14,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:14" (1/1) ... [2018-10-27 00:39:14,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:14" (1/1) ... [2018-10-27 00:39:14,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:14" (1/1) ... [2018-10-27 00:39:14,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:14" (1/1) ... [2018-10-27 00:39:14,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:14" (1/1) ... [2018-10-27 00:39:14,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:14" (1/1) ... [2018-10-27 00:39:14,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:39:14,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:39:14,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:39:14,981 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:39:14,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/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 [2018-10-27 00:39:15,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:39:15,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:39:15,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:39:15,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:39:15,030 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:39:15,030 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:39:15,223 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:39:15,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:39:15 BoogieIcfgContainer [2018-10-27 00:39:15,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:39:15,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:39:15,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:39:15,230 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:39:15,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:39:14" (1/3) ... [2018-10-27 00:39:15,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536beeb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:39:15, skipping insertion in model container [2018-10-27 00:39:15,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:39:14" (2/3) ... [2018-10-27 00:39:15,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536beeb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:39:15, skipping insertion in model container [2018-10-27 00:39:15,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:39:15" (3/3) ... [2018-10-27 00:39:15,233 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp3_true-unreach-call_true-termination.i [2018-10-27 00:39:15,241 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:39:15,247 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:39:15,260 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:39:15,285 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 00:39:15,285 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:39:15,286 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:39:15,286 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:39:15,286 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:39:15,286 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:39:15,286 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:39:15,286 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:39:15,287 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:39:15,300 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-10-27 00:39:15,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-27 00:39:15,303 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:39:15,304 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:39:15,306 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:39:15,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:39:15,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-10-27 00:39:15,315 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:39:15,316 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/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 [2018-10-27 00:39:15,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:39:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:39:15,377 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:39:15,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:39:15,469 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:39:15,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:39:15,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 00:39:15,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 00:39:15,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 00:39:15,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:39:15,501 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2018-10-27 00:39:15,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:39:15,532 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2018-10-27 00:39:15,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 00:39:15,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-10-27 00:39:15,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:39:15,542 INFO L225 Difference]: With dead ends: 16 [2018-10-27 00:39:15,542 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 00:39:15,545 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 [2018-10-27 00:39:15,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 00:39:15,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 00:39:15,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 00:39:15,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 00:39:15,567 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-10-27 00:39:15,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:39:15,567 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 00:39:15,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 00:39:15,567 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 00:39:15,567 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 00:39:15,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 00:39:15,630 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-27 00:39:15,630 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:39:15,631 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:39:15,631 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-27 00:39:15,631 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:39:15,631 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:39:15,631 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 3 9) the Hoare annotation is: true [2018-10-27 00:39:15,632 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2018-10-27 00:39:15,632 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 3 9) no Hoare annotation was computed. [2018-10-27 00:39:15,632 INFO L425 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-10-27 00:39:15,632 INFO L425 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2018-10-27 00:39:15,632 INFO L425 ceAbstractionStarter]: For program point L8-3(lines 3 9) no Hoare annotation was computed. [2018-10-27 00:39:15,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:39:15 BoogieIcfgContainer [2018-10-27 00:39:15,636 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:39:15,637 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:39:15,637 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:39:15,637 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:39:15,637 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:39:15" (3/4) ... [2018-10-27 00:39:15,641 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 00:39:15,648 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 00:39:15,648 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 00:39:15,652 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-10-27 00:39:15,652 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-27 00:39:15,652 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-27 00:39:15,679 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_86663312-a6a3-4e29-8a2b-3be8902e85c0/bin-2019/utaipan/witness.graphml [2018-10-27 00:39:15,679 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:39:15,680 INFO L168 Benchmark]: Toolchain (without parser) took 928.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -172.7 MB). Peak memory consumption was 3.0 MB. Max. memory is 11.5 GB. [2018-10-27 00:39:15,681 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. [2018-10-27 00:39:15,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 191.41 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:39:15,683 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.00 ms. Allocated memory is still 1.0 GB. Free memory is still 943.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:39:15,683 INFO L168 Benchmark]: Boogie Preprocessor took 16.59 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 938.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:39:15,684 INFO L168 Benchmark]: RCFGBuilder took 243.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 938.5 MB in the beginning and 1.2 GB in the end (delta: -222.9 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-10-27 00:39:15,684 INFO L168 Benchmark]: TraceAbstraction took 411.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:39:15,685 INFO L168 Benchmark]: Witness Printer took 43.00 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:39:15,689 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 191.41 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.8 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 19.00 ms. Allocated memory is still 1.0 GB. Free memory is still 943.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.59 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 938.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 243.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 938.5 MB in the beginning and 1.2 GB in the end (delta: -222.9 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 411.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Witness Printer took 43.00 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: 6.7 MB). Peak memory consumption was 6.7 MB. 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, 0.3s 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...