./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7200af17-9541-4688-90c3-45da9e81a707/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7200af17-9541-4688-90c3-45da9e81a707/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7200af17-9541-4688-90c3-45da9e81a707/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7200af17-9541-4688-90c3-45da9e81a707/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7200af17-9541-4688-90c3-45da9e81a707/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7200af17-9541-4688-90c3-45da9e81a707/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 60fa12f4a8e344f82de5faf31b8f2cbfbaaacd93 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 17:30:44,161 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 17:30:44,162 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 17:30:44,168 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 17:30:44,168 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 17:30:44,168 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 17:30:44,169 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 17:30:44,170 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 17:30:44,171 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 17:30:44,171 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 17:30:44,171 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 17:30:44,172 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 17:30:44,172 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 17:30:44,173 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 17:30:44,173 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 17:30:44,174 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 17:30:44,174 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 17:30:44,175 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 17:30:44,176 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 17:30:44,176 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 17:30:44,177 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 17:30:44,177 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 17:30:44,179 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 17:30:44,179 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 17:30:44,179 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 17:30:44,179 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 17:30:44,180 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 17:30:44,180 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 17:30:44,180 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 17:30:44,181 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 17:30:44,181 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 17:30:44,181 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 17:30:44,182 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 17:30:44,182 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 17:30:44,182 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 17:30:44,182 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 17:30:44,183 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7200af17-9541-4688-90c3-45da9e81a707/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-12-02 17:30:44,190 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 17:30:44,190 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 17:30:44,191 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 17:30:44,191 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 17:30:44,191 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 17:30:44,191 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 17:30:44,191 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 17:30:44,191 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 17:30:44,192 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 17:30:44,192 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 17:30:44,192 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 17:30:44,192 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 17:30:44,192 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 17:30:44,192 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 17:30:44,192 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 17:30:44,192 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 17:30:44,192 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 17:30:44,193 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 17:30:44,193 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 17:30:44,193 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 17:30:44,193 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 17:30:44,193 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-02 17:30:44,193 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-02 17:30:44,193 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-02 17:30:44,193 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 17:30:44,193 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 17:30:44,193 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 17:30:44,193 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 17:30:44,194 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 17:30:44,194 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 17:30:44,194 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 17:30:44,194 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 17:30:44,194 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 17:30:44,194 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 17:30:44,194 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 17:30:44,194 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 17:30:44,194 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_7200af17-9541-4688-90c3-45da9e81a707/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 60fa12f4a8e344f82de5faf31b8f2cbfbaaacd93 [2018-12-02 17:30:44,212 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 17:30:44,221 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 17:30:44,224 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 17:30:44,225 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 17:30:44,225 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 17:30:44,226 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7200af17-9541-4688-90c3-45da9e81a707/bin-2019/utaipan/../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c [2018-12-02 17:30:44,269 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7200af17-9541-4688-90c3-45da9e81a707/bin-2019/utaipan/data/01a5a1770/818724684d78478cb0929593bcdb0293/FLAG26224cdb9 [2018-12-02 17:30:44,679 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 17:30:44,679 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7200af17-9541-4688-90c3-45da9e81a707/sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c [2018-12-02 17:30:44,683 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7200af17-9541-4688-90c3-45da9e81a707/bin-2019/utaipan/data/01a5a1770/818724684d78478cb0929593bcdb0293/FLAG26224cdb9 [2018-12-02 17:30:44,691 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7200af17-9541-4688-90c3-45da9e81a707/bin-2019/utaipan/data/01a5a1770/818724684d78478cb0929593bcdb0293 [2018-12-02 17:30:44,693 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 17:30:44,694 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 17:30:44,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 17:30:44,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 17:30:44,697 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 17:30:44,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:30:44" (1/1) ... [2018-12-02 17:30:44,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf0b28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:44, skipping insertion in model container [2018-12-02 17:30:44,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:30:44" (1/1) ... [2018-12-02 17:30:44,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 17:30:44,714 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 17:30:44,805 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 17:30:44,812 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 17:30:44,822 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 17:30:44,832 INFO L195 MainTranslator]: Completed translation [2018-12-02 17:30:44,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:44 WrapperNode [2018-12-02 17:30:44,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 17:30:44,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 17:30:44,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 17:30:44,833 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 17:30:44,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:44" (1/1) ... [2018-12-02 17:30:44,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:44" (1/1) ... [2018-12-02 17:30:44,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 17:30:44,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 17:30:44,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 17:30:44,846 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 17:30:44,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:44" (1/1) ... [2018-12-02 17:30:44,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:44" (1/1) ... [2018-12-02 17:30:44,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:44" (1/1) ... [2018-12-02 17:30:44,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:44" (1/1) ... [2018-12-02 17:30:44,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:44" (1/1) ... [2018-12-02 17:30:44,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:44" (1/1) ... [2018-12-02 17:30:44,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:44" (1/1) ... [2018-12-02 17:30:44,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 17:30:44,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 17:30:44,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 17:30:44,890 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 17:30:44,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7200af17-9541-4688-90c3-45da9e81a707/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 [2018-12-02 17:30:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 17:30:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 17:30:44,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 17:30:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 17:30:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 17:30:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 17:30:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 17:30:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 17:30:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 17:30:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 17:30:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-12-02 17:30:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-12-02 17:30:45,031 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 17:30:45,032 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 17:30:45,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:30:45 BoogieIcfgContainer [2018-12-02 17:30:45,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 17:30:45,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 17:30:45,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 17:30:45,034 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 17:30:45,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:30:44" (1/3) ... [2018-12-02 17:30:45,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a6e849d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:30:45, skipping insertion in model container [2018-12-02 17:30:45,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:44" (2/3) ... [2018-12-02 17:30:45,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a6e849d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:30:45, skipping insertion in model container [2018-12-02 17:30:45,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:30:45" (3/3) ... [2018-12-02 17:30:45,037 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers1_true-valid-memsafety.c [2018-12-02 17:30:45,045 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 17:30:45,051 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-12-02 17:30:45,060 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-12-02 17:30:45,075 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 17:30:45,075 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-02 17:30:45,075 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 17:30:45,075 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 17:30:45,075 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 17:30:45,075 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 17:30:45,075 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 17:30:45,075 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 17:30:45,087 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-12-02 17:30:45,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 17:30:45,094 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:30:45,094 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:30:45,096 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-12-02 17:30:45,099 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:30:45,100 INFO L82 PathProgramCache]: Analyzing trace with hash 543879226, now seen corresponding path program 1 times [2018-12-02 17:30:45,101 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:30:45,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:45,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:30:45,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:45,134 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:30:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:30:45,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:30:45,207 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:30:45,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 17:30:45,208 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:30:45,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 17:30:45,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 17:30:45,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 17:30:45,219 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states. [2018-12-02 17:30:45,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:30:45,247 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-12-02 17:30:45,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 17:30:45,248 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-02 17:30:45,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:30:45,254 INFO L225 Difference]: With dead ends: 26 [2018-12-02 17:30:45,254 INFO L226 Difference]: Without dead ends: 21 [2018-12-02 17:30:45,255 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 17:30:45,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-12-02 17:30:45,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-12-02 17:30:45,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-02 17:30:45,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-12-02 17:30:45,274 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 9 [2018-12-02 17:30:45,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:30:45,275 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2018-12-02 17:30:45,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 17:30:45,275 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2018-12-02 17:30:45,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 17:30:45,275 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:30:45,275 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:30:45,275 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-12-02 17:30:45,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:30:45,276 INFO L82 PathProgramCache]: Analyzing trace with hash 543879227, now seen corresponding path program 1 times [2018-12-02 17:30:45,276 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:30:45,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:45,276 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:30:45,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:45,276 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:30:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:30:45,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:30:45,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:30:45,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 17:30:45,326 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:30:45,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 17:30:45,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 17:30:45,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-02 17:30:45,328 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 4 states. [2018-12-02 17:30:45,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:30:45,355 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-12-02 17:30:45,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 17:30:45,355 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-12-02 17:30:45,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:30:45,356 INFO L225 Difference]: With dead ends: 24 [2018-12-02 17:30:45,356 INFO L226 Difference]: Without dead ends: 24 [2018-12-02 17:30:45,356 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-02 17:30:45,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-12-02 17:30:45,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2018-12-02 17:30:45,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-12-02 17:30:45,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-12-02 17:30:45,359 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 9 [2018-12-02 17:30:45,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:30:45,359 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-12-02 17:30:45,359 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 17:30:45,359 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-12-02 17:30:45,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-02 17:30:45,360 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:30:45,360 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:30:45,360 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-12-02 17:30:45,360 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:30:45,360 INFO L82 PathProgramCache]: Analyzing trace with hash 2089391026, now seen corresponding path program 1 times [2018-12-02 17:30:45,360 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:30:45,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:45,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:30:45,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:45,361 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:30:45,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:30:45,416 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:30:45,417 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 17:30:45,417 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 17:30:45,418 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2018-12-02 17:30:45,419 INFO L205 CegarAbsIntRunner]: [0], [1], [27], [35], [36], [38], [40], [46], [47], [48], [50] [2018-12-02 17:30:45,441 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 17:30:45,441 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 17:30:45,560 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 17:30:45,561 INFO L272 AbstractInterpreter]: Visited 11 different actions 23 times. Merged at 4 different actions 12 times. Never widened. Performed 196 root evaluator evaluations with a maximum evaluation depth of 4. Performed 196 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 1 fixpoints after 1 different actions. Largest state had 20 variables. [2018-12-02 17:30:45,565 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:30:45,565 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 17:30:45,565 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 17:30:45,566 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7200af17-9541-4688-90c3-45da9e81a707/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 17:30:45,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:30:45,572 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 17:30:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:30:45,589 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 17:30:45,614 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-12-02 17:30:45,617 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 17:30:45,618 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 17:30:45,619 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-12-02 17:30:45,619 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 17:30:45,635 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 17:30:45,641 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-12-02 17:30:45,652 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-12-02 17:30:45,652 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-02 17:30:45,654 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 17:30:45,659 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 17:30:45,659 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:24, output treesize:14 [2018-12-02 17:30:45,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:30:45,704 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 17:30:45,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:30:45,789 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 17:30:45,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2018-12-02 17:30:45,790 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 17:30:45,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 17:30:45,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 17:30:45,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-12-02 17:30:45,790 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 9 states. [2018-12-02 17:30:45,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:30:45,872 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2018-12-02 17:30:45,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 17:30:45,872 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2018-12-02 17:30:45,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:30:45,872 INFO L225 Difference]: With dead ends: 27 [2018-12-02 17:30:45,873 INFO L226 Difference]: Without dead ends: 27 [2018-12-02 17:30:45,873 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2018-12-02 17:30:45,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-02 17:30:45,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-02 17:30:45,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-02 17:30:45,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-12-02 17:30:45,875 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 12 [2018-12-02 17:30:45,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:30:45,876 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2018-12-02 17:30:45,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 17:30:45,876 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-12-02 17:30:45,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 17:30:45,876 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:30:45,876 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:30:45,877 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-12-02 17:30:45,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:30:45,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1378383288, now seen corresponding path program 1 times [2018-12-02 17:30:45,877 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:30:45,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:45,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:30:45,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:45,878 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:30:45,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:30:45,914 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-02 17:30:45,914 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:30:45,914 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 17:30:45,915 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:30:45,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 17:30:45,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 17:30:45,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-02 17:30:45,916 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 6 states. [2018-12-02 17:30:45,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:30:45,944 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-12-02 17:30:45,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 17:30:45,944 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-12-02 17:30:45,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:30:45,945 INFO L225 Difference]: With dead ends: 26 [2018-12-02 17:30:45,945 INFO L226 Difference]: Without dead ends: 26 [2018-12-02 17:30:45,945 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-12-02 17:30:45,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-12-02 17:30:45,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-12-02 17:30:45,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-12-02 17:30:45,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-12-02 17:30:45,947 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 23 [2018-12-02 17:30:45,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:30:45,947 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-12-02 17:30:45,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 17:30:45,948 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-12-02 17:30:45,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 17:30:45,948 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:30:45,948 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:30:45,948 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-12-02 17:30:45,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:30:45,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1378383287, now seen corresponding path program 1 times [2018-12-02 17:30:45,949 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:30:45,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:45,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:30:45,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:45,950 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:30:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:30:45,978 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:30:45,978 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 17:30:45,978 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 17:30:45,978 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2018-12-02 17:30:45,978 INFO L205 CegarAbsIntRunner]: [0], [1], [6], [14], [17], [27], [33], [35], [36], [40], [44], [45], [46], [47], [48], [50], [51] [2018-12-02 17:30:45,979 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 17:30:45,979 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 17:30:46,031 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 17:30:46,031 INFO L272 AbstractInterpreter]: Visited 17 different actions 36 times. Merged at 6 different actions 15 times. Widened at 1 different actions 1 times. Performed 235 root evaluator evaluations with a maximum evaluation depth of 4. Performed 235 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 3 fixpoints after 3 different actions. Largest state had 24 variables. [2018-12-02 17:30:46,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:30:46,033 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 17:30:46,033 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 17:30:46,033 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7200af17-9541-4688-90c3-45da9e81a707/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 17:30:46,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:30:46,039 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 17:30:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:30:46,052 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 17:30:46,059 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:30:46,060 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 17:30:46,097 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:30:46,111 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 17:30:46,111 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2018-12-02 17:30:46,111 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 17:30:46,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 17:30:46,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 17:30:46,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-12-02 17:30:46,112 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 7 states. [2018-12-02 17:30:46,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:30:46,127 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2018-12-02 17:30:46,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 17:30:46,128 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-12-02 17:30:46,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:30:46,128 INFO L225 Difference]: With dead ends: 31 [2018-12-02 17:30:46,128 INFO L226 Difference]: Without dead ends: 31 [2018-12-02 17:30:46,129 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-12-02 17:30:46,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-12-02 17:30:46,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2018-12-02 17:30:46,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-12-02 17:30:46,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2018-12-02 17:30:46,132 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 23 [2018-12-02 17:30:46,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:30:46,132 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2018-12-02 17:30:46,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 17:30:46,132 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2018-12-02 17:30:46,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 17:30:46,133 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:30:46,133 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:30:46,133 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-12-02 17:30:46,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:30:46,133 INFO L82 PathProgramCache]: Analyzing trace with hash -149204608, now seen corresponding path program 2 times [2018-12-02 17:30:46,133 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:30:46,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:46,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:30:46,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:46,134 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:30:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:30:46,183 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:30:46,183 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 17:30:46,183 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 17:30:46,183 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-02 17:30:46,183 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-02 17:30:46,183 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 17:30:46,183 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7200af17-9541-4688-90c3-45da9e81a707/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 17:30:46,191 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-02 17:30:46,191 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-02 17:30:46,204 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2018-12-02 17:30:46,204 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 17:30:46,206 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 17:30:46,210 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-12-02 17:30:46,212 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 17:30:46,213 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 17:30:46,214 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-12-02 17:30:46,214 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 17:30:46,219 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 17:30:46,226 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-12-02 17:30:46,232 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-12-02 17:30:46,232 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-02 17:30:46,234 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 17:30:46,238 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 17:30:46,238 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:24, output treesize:14 [2018-12-02 17:30:46,316 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-12-02 17:30:46,316 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 17:30:46,430 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-12-02 17:30:46,490 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 25 [2018-12-02 17:30:46,503 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2018-12-02 17:30:46,546 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 18 [2018-12-02 17:30:46,567 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 15 [2018-12-02 17:30:46,607 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-12-02 17:30:46,631 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-02 17:30:46,631 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 17 [2018-12-02 17:30:46,631 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:30:46,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 17:30:46,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 17:30:46,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-12-02 17:30:46,632 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 7 states. [2018-12-02 17:30:46,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:30:46,706 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2018-12-02 17:30:46,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 17:30:46,706 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-02 17:30:46,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:30:46,706 INFO L225 Difference]: With dead ends: 29 [2018-12-02 17:30:46,707 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 17:30:46,707 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2018-12-02 17:30:46,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 17:30:46,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 17:30:46,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 17:30:46,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 17:30:46,707 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-12-02 17:30:46,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:30:46,707 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 17:30:46,708 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 17:30:46,708 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 17:30:46,708 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 17:30:46,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:30:46 BoogieIcfgContainer [2018-12-02 17:30:46,711 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 17:30:46,711 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 17:30:46,711 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 17:30:46,711 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 17:30:46,711 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:30:45" (3/4) ... [2018-12-02 17:30:46,713 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 17:30:46,717 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 17:30:46,717 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 17:30:46,717 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2018-12-02 17:30:46,719 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-12-02 17:30:46,719 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-02 17:30:46,719 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 17:30:46,719 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 17:30:46,741 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7200af17-9541-4688-90c3-45da9e81a707/bin-2019/utaipan/witness.graphml [2018-12-02 17:30:46,741 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 17:30:46,742 INFO L168 Benchmark]: Toolchain (without parser) took 2048.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 958.8 MB in the beginning and 821.5 MB in the end (delta: 137.3 MB). Peak memory consumption was 285.7 MB. Max. memory is 11.5 GB. [2018-12-02 17:30:46,742 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 17:30:46,743 INFO L168 Benchmark]: CACSL2BoogieTranslator took 138.12 ms. Allocated memory is still 1.0 GB. Free memory was 958.8 MB in the beginning and 947.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-02 17:30:46,743 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.95 ms. Allocated memory is still 1.0 GB. Free memory is still 947.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 17:30:46,743 INFO L168 Benchmark]: Boogie Preprocessor took 43.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -193.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-12-02 17:30:46,743 INFO L168 Benchmark]: RCFGBuilder took 141.89 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: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. [2018-12-02 17:30:46,743 INFO L168 Benchmark]: TraceAbstraction took 1678.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 826.7 MB in the end (delta: 295.6 MB). Peak memory consumption was 295.6 MB. Max. memory is 11.5 GB. [2018-12-02 17:30:46,744 INFO L168 Benchmark]: Witness Printer took 30.36 ms. Allocated memory is still 1.2 GB. Free memory was 826.7 MB in the beginning and 821.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. [2018-12-02 17:30:46,745 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 138.12 ms. Allocated memory is still 1.0 GB. Free memory was 958.8 MB in the beginning and 947.0 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 12.95 ms. Allocated memory is still 1.0 GB. Free memory is still 947.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -193.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 141.89 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: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1678.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 826.7 MB in the end (delta: 295.6 MB). Peak memory consumption was 295.6 MB. Max. memory is 11.5 GB. * Witness Printer took 30.36 ms. Allocated memory is still 1.2 GB. Free memory was 826.7 MB in the beginning and 821.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 20]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 9]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 9]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 5 error locations. SAFE Result, 1.6s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 96 SDtfs, 108 SDslu, 133 SDs, 0 SdLazy, 163 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 104 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 2 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 163 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 212 ConstructedInterpolants, 41 QuantifiedInterpolants, 32106 SizeOfPredicates, 9 NumberOfNonLiveVariables, 325 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 57/120 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...