./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/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 0a264ac1dee459017a9965df88403c901cb7750b ................................................................................................................................................................................................................................................... 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_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/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 0a264ac1dee459017a9965df88403c901cb7750b ........................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:24:22,794 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:24:22,795 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:24:22,802 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:24:22,802 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:24:22,802 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:24:22,803 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:24:22,804 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:24:22,805 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:24:22,806 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:24:22,806 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:24:22,806 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:24:22,807 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:24:22,808 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:24:22,808 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:24:22,809 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:24:22,809 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:24:22,811 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:24:22,812 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:24:22,812 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:24:22,813 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:24:22,814 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:24:22,815 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:24:22,816 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:24:22,816 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:24:22,816 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:24:22,817 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:24:22,817 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:24:22,818 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:24:22,819 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:24:22,819 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:24:22,819 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:24:22,819 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:24:22,820 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:24:22,820 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:24:22,821 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:24:22,821 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 12:24:22,828 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:24:22,828 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:24:22,829 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:24:22,829 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:24:22,829 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:24:22,829 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:24:22,829 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:24:22,829 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 12:24:22,829 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:24:22,829 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:24:22,829 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 12:24:22,829 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 12:24:22,830 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:24:22,830 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:24:22,830 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:24:22,830 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:24:22,830 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:24:22,830 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:24:22,830 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:24:22,830 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:24:22,830 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:24:22,831 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:24:22,831 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:24:22,831 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:24:22,831 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:24:22,831 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:24:22,831 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:24:22,831 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:24:22,831 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:24:22,831 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:24:22,832 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:24:22,832 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:24:22,832 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:24:22,832 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 12:24:22,832 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:24:22,832 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:24:22,832 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 12:24:22,832 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_0219072f-19bb-43e9-a1a2-17f6bba00517/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 -> 0a264ac1dee459017a9965df88403c901cb7750b [2018-11-18 12:24:22,856 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:24:22,865 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:24:22,868 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:24:22,869 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:24:22,869 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:24:22,869 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c [2018-11-18 12:24:22,914 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/data/950c7a3e5/fdbd33932b6c47d5b4dc1b99f7198b08/FLAGe31de7b99 [2018-11-18 12:24:23,235 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:24:23,236 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c [2018-11-18 12:24:23,241 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/data/950c7a3e5/fdbd33932b6c47d5b4dc1b99f7198b08/FLAGe31de7b99 [2018-11-18 12:24:23,252 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/data/950c7a3e5/fdbd33932b6c47d5b4dc1b99f7198b08 [2018-11-18 12:24:23,255 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:24:23,256 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:24:23,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:24:23,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:24:23,260 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:24:23,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:24:23" (1/1) ... [2018-11-18 12:24:23,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411459c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:23, skipping insertion in model container [2018-11-18 12:24:23,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:24:23" (1/1) ... [2018-11-18 12:24:23,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:24:23,286 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:24:23,399 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:24:23,401 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:24:23,410 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:24:23,418 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:24:23,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:23 WrapperNode [2018-11-18 12:24:23,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:24:23,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:24:23,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:24:23,419 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:24:23,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:23" (1/1) ... [2018-11-18 12:24:23,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:23" (1/1) ... [2018-11-18 12:24:23,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:24:23,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:24:23,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:24:23,433 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:24:23,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:23" (1/1) ... [2018-11-18 12:24:23,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:23" (1/1) ... [2018-11-18 12:24:23,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:23" (1/1) ... [2018-11-18 12:24:23,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:23" (1/1) ... [2018-11-18 12:24:23,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:23" (1/1) ... [2018-11-18 12:24:23,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:23" (1/1) ... [2018-11-18 12:24:23,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:23" (1/1) ... [2018-11-18 12:24:23,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:24:23,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:24:23,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:24:23,443 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:24:23,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:24:23,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:24:23,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:24:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:24:23,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:24:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:24:23,514 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:24:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 12:24:23,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 12:24:23,608 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:24:23,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:24:23 BoogieIcfgContainer [2018-11-18 12:24:23,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:24:23,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:24:23,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:24:23,610 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:24:23,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:24:23" (1/3) ... [2018-11-18 12:24:23,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d0492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:24:23, skipping insertion in model container [2018-11-18 12:24:23,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:23" (2/3) ... [2018-11-18 12:24:23,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d0492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:24:23, skipping insertion in model container [2018-11-18 12:24:23,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:24:23" (3/3) ... [2018-11-18 12:24:23,612 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square_int_true-unreach-call_true-termination.c [2018-11-18 12:24:23,617 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:24:23,621 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:24:23,630 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:24:23,649 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:24:23,650 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:24:23,650 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:24:23,650 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:24:23,650 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:24:23,650 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:24:23,650 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:24:23,650 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:24:23,664 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-18 12:24:23,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 12:24:23,669 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:24:23,669 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:24:23,670 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:24:23,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:24:23,674 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-18 12:24:23,675 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:24:23,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:24:23,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:24:23,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:24:23,708 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:24:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:24:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:24:23,749 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 12:24:23,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:24:23 BoogieIcfgContainer [2018-11-18 12:24:23,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:24:23,764 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:24:23,764 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:24:23,765 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:24:23,765 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:24:23" (3/4) ... [2018-11-18 12:24:23,768 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 12:24:23,768 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:24:23,768 INFO L168 Benchmark]: Toolchain (without parser) took 513.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -155.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:24:23,770 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:24:23,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 162.24 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:24:23,771 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.26 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:24:23,771 INFO L168 Benchmark]: Boogie Preprocessor took 10.19 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:24:23,772 INFO L168 Benchmark]: RCFGBuilder took 165.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -182.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:24:23,772 INFO L168 Benchmark]: TraceAbstraction took 155.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:24:23,773 INFO L168 Benchmark]: Witness Printer took 3.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:24:23,775 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 162.24 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.26 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.19 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 165.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -182.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 155.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.48 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 someBinaryArithmeticFLOAToperation at line 18. Possible FailurePath: [L12] int x; [L13] float y, z; [L15] x = __VERIFIER_nondet_int() [L18] y = x*x - 2.f VAL [x=0] [L19] CALL __VERIFIER_assert(y != 0.f) VAL [\old(cond)=0] [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 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=17occurred 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, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 12:24:25,195 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:24:25,196 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:24:25,206 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:24:25,206 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:24:25,207 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:24:25,208 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:24:25,209 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:24:25,210 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:24:25,211 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:24:25,211 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:24:25,212 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:24:25,212 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:24:25,213 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:24:25,214 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:24:25,215 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:24:25,215 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:24:25,216 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:24:25,218 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:24:25,219 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:24:25,220 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:24:25,221 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:24:25,222 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:24:25,223 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:24:25,223 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:24:25,223 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:24:25,224 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:24:25,225 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:24:25,225 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:24:25,226 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:24:25,226 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:24:25,227 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:24:25,227 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:24:25,227 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:24:25,228 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:24:25,228 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:24:25,228 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 12:24:25,239 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:24:25,239 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:24:25,239 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:24:25,240 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:24:25,240 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:24:25,240 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:24:25,240 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:24:25,240 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:24:25,240 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:24:25,240 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:24:25,241 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:24:25,241 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:24:25,241 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:24:25,241 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:24:25,242 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:24:25,242 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:24:25,242 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:24:25,242 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 12:24:25,242 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 12:24:25,242 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:24:25,242 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:24:25,242 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:24:25,243 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:24:25,243 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:24:25,243 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:24:25,243 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:24:25,243 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:24:25,243 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:24:25,244 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:24:25,244 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:24:25,244 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:24:25,244 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 12:24:25,244 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:24:25,244 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 12:24:25,244 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 12:24:25,245 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_0219072f-19bb-43e9-a1a2-17f6bba00517/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 -> 0a264ac1dee459017a9965df88403c901cb7750b [2018-11-18 12:24:25,277 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:24:25,285 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:24:25,288 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:24:25,289 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:24:25,289 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:24:25,290 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c [2018-11-18 12:24:25,334 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/data/0b3e04086/6cc62f6557aa41b3ba18e67df9a92dab/FLAG96366799c [2018-11-18 12:24:25,663 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:24:25,663 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c [2018-11-18 12:24:25,667 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/data/0b3e04086/6cc62f6557aa41b3ba18e67df9a92dab/FLAG96366799c [2018-11-18 12:24:25,675 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/data/0b3e04086/6cc62f6557aa41b3ba18e67df9a92dab [2018-11-18 12:24:25,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:24:25,678 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:24:25,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:24:25,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:24:25,681 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:24:25,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:24:25" (1/1) ... [2018-11-18 12:24:25,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@119b503f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:25, skipping insertion in model container [2018-11-18 12:24:25,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:24:25" (1/1) ... [2018-11-18 12:24:25,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:24:25,701 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:24:25,808 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:24:25,811 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:24:25,821 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:24:25,830 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:24:25,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:25 WrapperNode [2018-11-18 12:24:25,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:24:25,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:24:25,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:24:25,831 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:24:25,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:25" (1/1) ... [2018-11-18 12:24:25,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:25" (1/1) ... [2018-11-18 12:24:25,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:24:25,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:24:25,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:24:25,845 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:24:25,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:25" (1/1) ... [2018-11-18 12:24:25,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:25" (1/1) ... [2018-11-18 12:24:25,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:25" (1/1) ... [2018-11-18 12:24:25,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:25" (1/1) ... [2018-11-18 12:24:25,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:25" (1/1) ... [2018-11-18 12:24:25,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:25" (1/1) ... [2018-11-18 12:24:25,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:25" (1/1) ... [2018-11-18 12:24:25,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:24:25,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:24:25,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:24:25,860 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:24:25,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:24:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:24:25,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:24:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:24:25,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:24:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:24:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:24:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 12:24:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 12:24:26,657 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:24:26,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:24:26 BoogieIcfgContainer [2018-11-18 12:24:26,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:24:26,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:24:26,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:24:26,660 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:24:26,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:24:25" (1/3) ... [2018-11-18 12:24:26,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e82c7c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:24:26, skipping insertion in model container [2018-11-18 12:24:26,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:24:25" (2/3) ... [2018-11-18 12:24:26,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e82c7c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:24:26, skipping insertion in model container [2018-11-18 12:24:26,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:24:26" (3/3) ... [2018-11-18 12:24:26,662 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square_int_true-unreach-call_true-termination.c [2018-11-18 12:24:26,669 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:24:26,673 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:24:26,681 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:24:26,702 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:24:26,702 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:24:26,702 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:24:26,702 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:24:26,702 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:24:26,702 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:24:26,703 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:24:26,703 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:24:26,703 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:24:26,715 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-18 12:24:26,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 12:24:26,719 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:24:26,719 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:24:26,721 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:24:26,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:24:26,724 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-18 12:24:26,726 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:24:26,727 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 12:24:26,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:24:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:24:26,811 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:24:29,032 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ BitVec 32))) (= c_main_~y~0 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (bvmul main_~x~0 main_~x~0)) ((_ to_fp 8 24) roundNearestTiesToEven 2.0)))) is different from true [2018-11-18 12:24:31,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:24:31,110 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:24:31,119 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:24:31,119 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 12:24:31,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 12:24:31,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 12:24:31,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2018-11-18 12:24:31,130 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2018-11-18 12:24:31,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:24:31,154 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-11-18 12:24:31,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 12:24:31,155 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-18 12:24:31,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:24:31,159 INFO L225 Difference]: With dead ends: 24 [2018-11-18 12:24:31,159 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:24:31,161 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=11, Invalid=12, Unknown=1, NotChecked=6, Total=30 [2018-11-18 12:24:31,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:24:31,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:24:31,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:24:31,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:24:31,180 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-18 12:24:31,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:24:31,180 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:24:31,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 12:24:31,180 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:24:31,181 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:24:31,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:24:33,461 WARN L180 SmtUtils]: Spent 2.24 s on a formula simplification that was a NOOP. DAG size: 10 [2018-11-18 12:24:33,463 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 12:24:33,463 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:24:33,464 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:24:33,464 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 12:24:33,464 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:24:33,464 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:24:33,464 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 22) the Hoare annotation is: true [2018-11-18 12:24:33,464 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 22) no Hoare annotation was computed. [2018-11-18 12:24:33,464 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 22) no Hoare annotation was computed. [2018-11-18 12:24:33,465 INFO L421 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: (exists ((main_~x~0 (_ BitVec 32))) (= main_~y~0 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (bvmul main_~x~0 main_~x~0)) ((_ to_fp 8 24) roundNearestTiesToEven 2.0)))) [2018-11-18 12:24:33,465 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-11-18 12:24:33,465 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 8) the Hoare annotation is: true [2018-11-18 12:24:33,465 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 8) no Hoare annotation was computed. [2018-11-18 12:24:33,465 INFO L425 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-11-18 12:24:33,465 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2018-11-18 12:24:33,465 INFO L425 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2018-11-18 12:24:33,465 INFO L425 ceAbstractionStarter]: For program point L8-3(line 8) no Hoare annotation was computed. [2018-11-18 12:24:33,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:24:33 BoogieIcfgContainer [2018-11-18 12:24:33,468 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:24:33,468 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:24:33,468 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:24:33,468 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:24:33,468 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:24:26" (3/4) ... [2018-11-18 12:24:33,470 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:24:33,474 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:24:33,475 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:24:33,475 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-18 12:24:33,477 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 12:24:33,477 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 12:24:33,477 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 12:24:33,498 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0219072f-19bb-43e9-a1a2-17f6bba00517/bin-2019/utaipan/witness.graphml [2018-11-18 12:24:33,499 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:24:33,499 INFO L168 Benchmark]: Toolchain (without parser) took 7821.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -123.4 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:24:33,500 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:24:33,500 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.66 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 939.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:24:33,500 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.53 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:24:33,501 INFO L168 Benchmark]: Boogie Preprocessor took 15.14 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:24:33,501 INFO L168 Benchmark]: RCFGBuilder took 797.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:24:33,501 INFO L168 Benchmark]: TraceAbstraction took 6809.94 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: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:24:33,501 INFO L168 Benchmark]: Witness Printer took 30.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:24:33,503 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 151.66 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 939.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.53 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.14 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 797.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6809.94 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: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. * Witness Printer took 30.73 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 4 procedures, 17 locations, 1 error locations. SAFE Result, 6.7s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 2.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 5 SDslu, 19 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 18 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 1 QuantifiedInterpolants, 224 SizeOfPredicates, 3 NumberOfNonLiveVariables, 19 ConjunctsInSsa, 4 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...