./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/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_dcecf5b5-26d8-4969-978b-9455a3559e31/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/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_dcecf5b5-26d8-4969-978b-9455a3559e31/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/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_dcecf5b5-26d8-4969-978b-9455a3559e31/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/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 0.1.23-635dfa2 [2018-12-09 19:07:59,878 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:07:59,879 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:07:59,885 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:07:59,885 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:07:59,886 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:07:59,886 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:07:59,888 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:07:59,889 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:07:59,889 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:07:59,890 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:07:59,890 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:07:59,890 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:07:59,891 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:07:59,892 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:07:59,892 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:07:59,893 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:07:59,894 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:07:59,895 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:07:59,896 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:07:59,896 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:07:59,897 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:07:59,898 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:07:59,898 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:07:59,898 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:07:59,899 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:07:59,900 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:07:59,900 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:07:59,901 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:07:59,901 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:07:59,901 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:07:59,902 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:07:59,902 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:07:59,902 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:07:59,903 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:07:59,903 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:07:59,903 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:07:59,911 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:07:59,911 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:07:59,911 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:07:59,912 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:07:59,912 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:07:59,912 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:07:59,912 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:07:59,912 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:07:59,912 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:07:59,912 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:07:59,912 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:07:59,913 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:07:59,913 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:07:59,913 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:07:59,913 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:07:59,914 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:07:59,914 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:07:59,914 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:07:59,914 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:07:59,914 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:07:59,914 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:07:59,914 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:07:59,914 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:07:59,915 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:07:59,915 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:07:59,915 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:07:59,915 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:07:59,915 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:07:59,915 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:07:59,915 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:07:59,915 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:07:59,916 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:07:59,916 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:07:59,916 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:07:59,916 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:07:59,916 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:07:59,916 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_dcecf5b5-26d8-4969-978b-9455a3559e31/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 [2018-12-09 19:07:59,933 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:07:59,940 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:07:59,942 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:07:59,943 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:07:59,943 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:07:59,944 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c [2018-12-09 19:07:59,979 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/bin-2019/utaipan/data/6d6eb6e14/9caed0e5fb9b479991bdfd351e1704fb/FLAG48252bca8 [2018-12-09 19:08:00,321 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:08:00,322 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c [2018-12-09 19:08:00,328 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/bin-2019/utaipan/data/6d6eb6e14/9caed0e5fb9b479991bdfd351e1704fb/FLAG48252bca8 [2018-12-09 19:08:00,718 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/bin-2019/utaipan/data/6d6eb6e14/9caed0e5fb9b479991bdfd351e1704fb [2018-12-09 19:08:00,720 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:08:00,721 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:08:00,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:08:00,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:08:00,723 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:08:00,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:08:00" (1/1) ... [2018-12-09 19:08:00,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fdfc843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:00, skipping insertion in model container [2018-12-09 19:08:00,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:08:00" (1/1) ... [2018-12-09 19:08:00,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:08:00,738 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:08:00,819 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:08:00,821 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:08:00,830 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:08:00,837 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:08:00,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:00 WrapperNode [2018-12-09 19:08:00,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:08:00,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:08:00,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:08:00,838 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:08:00,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:00" (1/1) ... [2018-12-09 19:08:00,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:00" (1/1) ... [2018-12-09 19:08:00,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:08:00,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:08:00,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:08:00,850 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:08:00,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:00" (1/1) ... [2018-12-09 19:08:00,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:00" (1/1) ... [2018-12-09 19:08:00,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:00" (1/1) ... [2018-12-09 19:08:00,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:00" (1/1) ... [2018-12-09 19:08:00,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:00" (1/1) ... [2018-12-09 19:08:00,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:00" (1/1) ... [2018-12-09 19:08:00,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:00" (1/1) ... [2018-12-09 19:08:00,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:08:00,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:08:00,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:08:00,861 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:08:00,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/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 [2018-12-09 19:08:00,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:08:00,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:08:00,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:08:00,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:08:00,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:08:00,922 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:08:00,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 19:08:00,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 19:08:00,998 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:08:00,998 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 19:08:00,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:08:00 BoogieIcfgContainer [2018-12-09 19:08:00,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:08:00,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:08:00,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:08:01,001 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:08:01,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:08:00" (1/3) ... [2018-12-09 19:08:01,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1195c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:08:01, skipping insertion in model container [2018-12-09 19:08:01,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:00" (2/3) ... [2018-12-09 19:08:01,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1195c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:08:01, skipping insertion in model container [2018-12-09 19:08:01,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:08:00" (3/3) ... [2018-12-09 19:08:01,003 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square_int_true-unreach-call_true-termination.c [2018-12-09 19:08:01,009 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:08:01,013 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:08:01,022 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:08:01,040 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:08:01,041 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:08:01,041 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:08:01,041 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:08:01,041 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:08:01,041 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:08:01,041 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:08:01,041 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:08:01,051 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-12-09 19:08:01,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 19:08:01,054 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:08:01,055 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:08:01,056 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:08:01,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:08:01,060 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-12-09 19:08:01,061 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:08:01,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:08:01,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:08:01,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:08:01,089 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:08:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:08:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:08:01,129 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 19:08:01,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:08:01 BoogieIcfgContainer [2018-12-09 19:08:01,142 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:08:01,142 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:08:01,142 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:08:01,142 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:08:01,142 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:08:00" (3/4) ... [2018-12-09 19:08:01,144 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 19:08:01,145 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:08:01,145 INFO L168 Benchmark]: Toolchain (without parser) took 424.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 961.4 MB in the beginning and 1.1 GB in the end (delta: -127.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. [2018-12-09 19:08:01,146 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:08:01,146 INFO L168 Benchmark]: CACSL2BoogieTranslator took 116.75 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:08:01,147 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.87 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:08:01,147 INFO L168 Benchmark]: Boogie Preprocessor took 10.57 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:08:01,147 INFO L168 Benchmark]: RCFGBuilder took 137.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -157.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-12-09 19:08:01,148 INFO L168 Benchmark]: TraceAbstraction took 142.77 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:08:01,148 INFO L168 Benchmark]: Witness Printer took 2.73 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. [2018-12-09 19:08:01,150 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 116.75 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.87 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.57 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 137.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -157.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 142.77 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.73 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: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 19, 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 0.1.23-635dfa2 [2018-12-09 19:08:02,502 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:08:02,503 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:08:02,509 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:08:02,509 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:08:02,509 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:08:02,510 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:08:02,511 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:08:02,512 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:08:02,513 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:08:02,513 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:08:02,513 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:08:02,514 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:08:02,515 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:08:02,516 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:08:02,516 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:08:02,517 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:08:02,518 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:08:02,519 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:08:02,519 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:08:02,520 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:08:02,520 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:08:02,521 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:08:02,522 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:08:02,522 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:08:02,522 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:08:02,523 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:08:02,523 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:08:02,523 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:08:02,524 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:08:02,524 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:08:02,525 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:08:02,525 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:08:02,525 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:08:02,526 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:08:02,526 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:08:02,526 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 19:08:02,536 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:08:02,536 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:08:02,537 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:08:02,537 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:08:02,537 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:08:02,538 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:08:02,538 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:08:02,538 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:08:02,538 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:08:02,538 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:08:02,539 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:08:02,539 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:08:02,539 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:08:02,539 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:08:02,539 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:08:02,539 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:08:02,540 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:08:02,540 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 19:08:02,540 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 19:08:02,540 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:08:02,540 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:08:02,540 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 19:08:02,541 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:08:02,541 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:08:02,541 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:08:02,541 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:08:02,541 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:08:02,541 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:08:02,542 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:08:02,542 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:08:02,542 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:08:02,542 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 19:08:02,542 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:08:02,542 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 19:08:02,542 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 19:08:02,542 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_dcecf5b5-26d8-4969-978b-9455a3559e31/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 [2018-12-09 19:08:02,566 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:08:02,574 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:08:02,576 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:08:02,577 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:08:02,577 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:08:02,577 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c [2018-12-09 19:08:02,613 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/bin-2019/utaipan/data/aa6321585/378170772731489b8840204eb88880f5/FLAG70c5f41b4 [2018-12-09 19:08:03,017 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:08:03,018 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c [2018-12-09 19:08:03,021 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/bin-2019/utaipan/data/aa6321585/378170772731489b8840204eb88880f5/FLAG70c5f41b4 [2018-12-09 19:08:03,029 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/bin-2019/utaipan/data/aa6321585/378170772731489b8840204eb88880f5 [2018-12-09 19:08:03,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:08:03,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:08:03,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:08:03,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:08:03,034 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:08:03,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:08:03" (1/1) ... [2018-12-09 19:08:03,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@265c0857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:03, skipping insertion in model container [2018-12-09 19:08:03,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:08:03" (1/1) ... [2018-12-09 19:08:03,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:08:03,054 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:08:03,142 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:08:03,146 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:08:03,155 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:08:03,164 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:08:03,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:03 WrapperNode [2018-12-09 19:08:03,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:08:03,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:08:03,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:08:03,165 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:08:03,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:03" (1/1) ... [2018-12-09 19:08:03,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:03" (1/1) ... [2018-12-09 19:08:03,178 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:08:03,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:08:03,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:08:03,179 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:08:03,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:03" (1/1) ... [2018-12-09 19:08:03,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:03" (1/1) ... [2018-12-09 19:08:03,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:03" (1/1) ... [2018-12-09 19:08:03,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:03" (1/1) ... [2018-12-09 19:08:03,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:03" (1/1) ... [2018-12-09 19:08:03,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:03" (1/1) ... [2018-12-09 19:08:03,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:03" (1/1) ... [2018-12-09 19:08:03,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:08:03,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:08:03,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:08:03,193 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:08:03,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/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 [2018-12-09 19:08:03,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:08:03,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:08:03,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:08:03,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:08:03,261 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:08:03,262 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:08:03,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 19:08:03,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 19:08:04,046 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:08:04,046 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 19:08:04,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:08:04 BoogieIcfgContainer [2018-12-09 19:08:04,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:08:04,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:08:04,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:08:04,048 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:08:04,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:08:03" (1/3) ... [2018-12-09 19:08:04,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b838884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:08:04, skipping insertion in model container [2018-12-09 19:08:04,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:08:03" (2/3) ... [2018-12-09 19:08:04,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b838884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:08:04, skipping insertion in model container [2018-12-09 19:08:04,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:08:04" (3/3) ... [2018-12-09 19:08:04,050 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square_int_true-unreach-call_true-termination.c [2018-12-09 19:08:04,056 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:08:04,059 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:08:04,068 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:08:04,086 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 19:08:04,087 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:08:04,087 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:08:04,087 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:08:04,087 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:08:04,087 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:08:04,087 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:08:04,087 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:08:04,087 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:08:04,097 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-12-09 19:08:04,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 19:08:04,100 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:08:04,100 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:08:04,101 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:08:04,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:08:04,104 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-12-09 19:08:04,107 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:08:04,107 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/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 [2018-12-09 19:08:04,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:08:04,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:08:04,179 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:08:06,657 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 [2018-12-09 19:08:08,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:08:08,766 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:08:08,776 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:08:08,776 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 19:08:08,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 19:08:08,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 19:08:08,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2018-12-09 19:08:08,787 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2018-12-09 19:08:08,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:08:08,809 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-12-09 19:08:08,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 19:08:08,811 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-12-09 19:08:08,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:08:08,814 INFO L225 Difference]: With dead ends: 24 [2018-12-09 19:08:08,815 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 19:08:08,816 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=11, Invalid=12, Unknown=1, NotChecked=6, Total=30 [2018-12-09 19:08:08,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 19:08:08,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 19:08:08,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 19:08:08,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 19:08:08,834 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-12-09 19:08:08,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:08:08,834 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 19:08:08,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 19:08:08,834 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 19:08:08,834 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 19:08:08,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 19:08:11,392 WARN L180 SmtUtils]: Spent 2.52 s on a formula simplification that was a NOOP. DAG size: 10 [2018-12-09 19:08:11,396 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-09 19:08:11,396 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:08:11,396 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:08:11,396 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 19:08:11,396 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:08:11,396 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:08:11,396 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 22) the Hoare annotation is: true [2018-12-09 19:08:11,396 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 22) no Hoare annotation was computed. [2018-12-09 19:08:11,396 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 22) no Hoare annotation was computed. [2018-12-09 19:08:11,396 INFO L444 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)))) [2018-12-09 19:08:11,397 INFO L448 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-12-09 19:08:11,397 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 8) the Hoare annotation is: true [2018-12-09 19:08:11,397 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 8) no Hoare annotation was computed. [2018-12-09 19:08:11,397 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2018-12-09 19:08:11,397 INFO L448 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-12-09 19:08:11,397 INFO L448 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2018-12-09 19:08:11,397 INFO L448 ceAbstractionStarter]: For program point L8-3(line 8) no Hoare annotation was computed. [2018-12-09 19:08:11,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:08:11 BoogieIcfgContainer [2018-12-09 19:08:11,399 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:08:11,399 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:08:11,399 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:08:11,399 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:08:11,400 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:08:04" (3/4) ... [2018-12-09 19:08:11,402 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 19:08:11,406 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 19:08:11,406 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 19:08:11,406 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-09 19:08:11,408 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-09 19:08:11,408 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 19:08:11,408 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 19:08:11,430 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_dcecf5b5-26d8-4969-978b-9455a3559e31/bin-2019/utaipan/witness.graphml [2018-12-09 19:08:11,430 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:08:11,430 INFO L168 Benchmark]: Toolchain (without parser) took 8399.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -130.2 MB). Peak memory consumption was 1.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:08:11,431 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:08:11,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 132.65 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 931.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:08:11,431 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.61 ms. Allocated memory is still 1.0 GB. Free memory is still 931.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:08:11,431 INFO L168 Benchmark]: Boogie Preprocessor took 13.51 ms. Allocated memory is still 1.0 GB. Free memory was 931.3 MB in the beginning and 925.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:08:11,432 INFO L168 Benchmark]: RCFGBuilder took 853.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -173.0 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:08:11,432 INFO L168 Benchmark]: TraceAbstraction took 7352.51 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: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:08:11,432 INFO L168 Benchmark]: Witness Printer took 30.48 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. [2018-12-09 19:08:11,434 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 132.65 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 931.3 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 13.61 ms. Allocated memory is still 1.0 GB. Free memory is still 931.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.51 ms. Allocated memory is still 1.0 GB. Free memory was 931.3 MB in the beginning and 925.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 853.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -173.0 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7352.51 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: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * Witness Printer took 30.48 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: - 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, 7.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 2.5s 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, 2.4s 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, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 4.5s 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...