./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/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 c8f17cf5334c3a5b079beafc57a2e2bffaea721f .................................................................................................................................................................................................................................................................................................................................................................. 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_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/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 c8f17cf5334c3a5b079beafc57a2e2bffaea721f ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 14:00:06,347 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:00:06,348 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:00:06,354 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:00:06,354 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:00:06,355 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:00:06,356 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:00:06,357 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:00:06,358 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:00:06,359 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:00:06,359 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:00:06,359 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:00:06,360 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:00:06,361 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:00:06,361 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:00:06,362 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:00:06,362 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:00:06,363 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:00:06,364 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:00:06,365 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:00:06,365 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:00:06,366 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:00:06,367 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:00:06,367 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:00:06,367 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:00:06,368 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:00:06,368 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:00:06,368 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:00:06,369 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:00:06,370 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:00:06,370 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:00:06,370 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:00:06,371 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:00:06,371 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:00:06,371 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:00:06,372 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:00:06,372 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-11-18 14:00:06,379 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:00:06,379 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:00:06,380 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:00:06,380 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:00:06,380 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:00:06,381 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:00:06,381 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:00:06,381 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 14:00:06,381 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:00:06,381 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:00:06,381 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 14:00:06,381 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 14:00:06,381 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:00:06,382 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:00:06,382 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:00:06,382 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:00:06,382 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:00:06,382 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 14:00:06,383 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:00:06,383 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:00:06,383 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:00:06,383 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 14:00:06,383 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 14:00:06,383 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 14:00:06,383 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:00:06,384 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:00:06,384 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:00:06,384 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:00:06,384 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:00:06,384 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:00:06,384 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:00:06,384 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:00:06,384 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:00:06,385 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:00:06,385 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 14:00:06,385 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:00:06,385 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:00:06,385 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_5896dfc7-837b-4018-b2df-6ca887a5ff52/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 -> c8f17cf5334c3a5b079beafc57a2e2bffaea721f [2018-11-18 14:00:06,408 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:00:06,417 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:00:06,420 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:00:06,421 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:00:06,421 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:00:06,422 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/../../sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c [2018-11-18 14:00:06,463 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/data/287e900c3/68dab721c7bf4da484c4cfa0bf23c89b/FLAG5b36ba219 [2018-11-18 14:00:06,864 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:00:06,864 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c [2018-11-18 14:00:06,868 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/data/287e900c3/68dab721c7bf4da484c4cfa0bf23c89b/FLAG5b36ba219 [2018-11-18 14:00:06,878 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/data/287e900c3/68dab721c7bf4da484c4cfa0bf23c89b [2018-11-18 14:00:06,880 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:00:06,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:00:06,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:00:06,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:00:06,884 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:00:06,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:00:06" (1/1) ... [2018-11-18 14:00:06,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74c5ce84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:06, skipping insertion in model container [2018-11-18 14:00:06,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:00:06" (1/1) ... [2018-11-18 14:00:06,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:00:06,904 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:00:07,011 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:00:07,019 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:00:07,028 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:00:07,037 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:00:07,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:07 WrapperNode [2018-11-18 14:00:07,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:00:07,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:00:07,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:00:07,038 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:00:07,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:07" (1/1) ... [2018-11-18 14:00:07,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:07" (1/1) ... [2018-11-18 14:00:07,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:00:07,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:00:07,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:00:07,053 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:00:07,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:07" (1/1) ... [2018-11-18 14:00:07,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:07" (1/1) ... [2018-11-18 14:00:07,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:07" (1/1) ... [2018-11-18 14:00:07,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:07" (1/1) ... [2018-11-18 14:00:07,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:07" (1/1) ... [2018-11-18 14:00:07,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:07" (1/1) ... [2018-11-18 14:00:07,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:07" (1/1) ... [2018-11-18 14:00:07,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:00:07,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:00:07,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:00:07,101 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:00:07,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:00:07,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 14:00:07,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:00:07,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:00:07,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:00:07,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:00:07,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:00:07,134 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:00:07,134 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:00:07,134 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-11-18 14:00:07,134 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-11-18 14:00:07,249 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:00:07,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:00:07 BoogieIcfgContainer [2018-11-18 14:00:07,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:00:07,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:00:07,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:00:07,253 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:00:07,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:00:06" (1/3) ... [2018-11-18 14:00:07,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@449b3890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:00:07, skipping insertion in model container [2018-11-18 14:00:07,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:07" (2/3) ... [2018-11-18 14:00:07,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@449b3890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:00:07, skipping insertion in model container [2018-11-18 14:00:07,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:00:07" (3/3) ... [2018-11-18 14:00:07,255 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers3_true-valid-memsafety.c [2018-11-18 14:00:07,263 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:00:07,269 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-11-18 14:00:07,281 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-11-18 14:00:07,302 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:00:07,302 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-18 14:00:07,302 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:00:07,302 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:00:07,302 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:00:07,302 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:00:07,302 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:00:07,303 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:00:07,314 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-11-18 14:00:07,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 14:00:07,321 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:00:07,322 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:00:07,324 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 14:00:07,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:00:07,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1097170423, now seen corresponding path program 1 times [2018-11-18 14:00:07,330 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:00:07,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:00:07,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:00:07,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:00:07,360 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:00:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:00:07,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:00:07,425 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:00:07,425 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:00:07,425 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:00:07,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:00:07,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:00:07,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:00:07,438 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2018-11-18 14:00:07,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:00:07,464 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-11-18 14:00:07,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:00:07,466 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 14:00:07,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:00:07,471 INFO L225 Difference]: With dead ends: 24 [2018-11-18 14:00:07,471 INFO L226 Difference]: Without dead ends: 19 [2018-11-18 14:00:07,473 INFO L604 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 [2018-11-18 14:00:07,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-18 14:00:07,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-18 14:00:07,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-18 14:00:07,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-11-18 14:00:07,494 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2018-11-18 14:00:07,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:00:07,495 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-11-18 14:00:07,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:00:07,495 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-11-18 14:00:07,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 14:00:07,495 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:00:07,496 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:00:07,496 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 14:00:07,496 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:00:07,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1097170422, now seen corresponding path program 1 times [2018-11-18 14:00:07,496 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:00:07,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:00:07,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:00:07,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:00:07,498 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:00:07,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:00:07,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:00:07,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:00:07,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:00:07,577 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:00:07,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 14:00:07,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 14:00:07,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 14:00:07,579 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 4 states. [2018-11-18 14:00:07,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:00:07,622 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-11-18 14:00:07,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 14:00:07,623 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-18 14:00:07,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:00:07,623 INFO L225 Difference]: With dead ends: 23 [2018-11-18 14:00:07,623 INFO L226 Difference]: Without dead ends: 23 [2018-11-18 14:00:07,624 INFO L604 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 [2018-11-18 14:00:07,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-18 14:00:07,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-11-18 14:00:07,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-18 14:00:07,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-11-18 14:00:07,627 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 10 [2018-11-18 14:00:07,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:00:07,627 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-11-18 14:00:07,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 14:00:07,627 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-11-18 14:00:07,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 14:00:07,628 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:00:07,628 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:00:07,628 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-18 14:00:07,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:00:07,628 INFO L82 PathProgramCache]: Analyzing trace with hash 168216225, now seen corresponding path program 1 times [2018-11-18 14:00:07,628 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:00:07,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:00:07,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:00:07,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:00:07,629 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:00:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:00:07,760 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:00:07,761 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:00:07,761 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:00:07,761 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-11-18 14:00:07,762 INFO L202 CegarAbsIntRunner]: [0], [1], [13], [17], [22], [23], [25], [27], [33], [34], [35], [37] [2018-11-18 14:00:07,783 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:00:07,783 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:00:07,851 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.handleInfeasibleCase(BaseRefinementStrategy.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:206) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:209) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translateStore(MappedTerm2Expression.java:291) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:157) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.AssumptionBuilder.constructBoogieAssumeStatement(AssumptionBuilder.java:75) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.getCachedCodeBlock(TermConjunctEvaluator.java:273) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:296) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:536) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:217) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.constructInterpolantGenerator(BaseTaipanRefinementStrategy.java:379) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getInterpolantGenerator(BaseTaipanRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:380) ... 20 more [2018-11-18 14:00:07,853 INFO L168 Benchmark]: Toolchain (without parser) took 972.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 960.9 MB in the beginning and 1.1 GB in the end (delta: -99.0 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:00:07,854 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:00:07,854 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.08 ms. Allocated memory is still 1.0 GB. Free memory was 960.9 MB in the beginning and 950.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:00:07,855 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.27 ms. Allocated memory is still 1.0 GB. Free memory was 950.1 MB in the beginning and 944.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:00:07,855 INFO L168 Benchmark]: Boogie Preprocessor took 48.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -185.9 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-18 14:00:07,856 INFO L168 Benchmark]: RCFGBuilder took 148.29 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2018-11-18 14:00:07,857 INFO L168 Benchmark]: TraceAbstraction took 602.29 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: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:00:07,860 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 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 156.08 ms. Allocated memory is still 1.0 GB. Free memory was 960.9 MB in the beginning and 950.1 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 14.27 ms. Allocated memory is still 1.0 GB. Free memory was 950.1 MB in the beginning and 944.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -185.9 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 148.29 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 602.29 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: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 14:00:09,252 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:00:09,253 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:00:09,260 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:00:09,260 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:00:09,261 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:00:09,262 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:00:09,263 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:00:09,264 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:00:09,265 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:00:09,265 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:00:09,265 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:00:09,266 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:00:09,267 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:00:09,268 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:00:09,268 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:00:09,269 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:00:09,270 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:00:09,271 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:00:09,272 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:00:09,273 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:00:09,274 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:00:09,276 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:00:09,276 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:00:09,276 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:00:09,277 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:00:09,277 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:00:09,278 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:00:09,278 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:00:09,279 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:00:09,279 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:00:09,280 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:00:09,280 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:00:09,280 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:00:09,281 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:00:09,281 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:00:09,281 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2018-11-18 14:00:09,292 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:00:09,292 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:00:09,292 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:00:09,292 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:00:09,293 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:00:09,293 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:00:09,293 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:00:09,293 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:00:09,293 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:00:09,293 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:00:09,294 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:00:09,294 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:00:09,294 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:00:09,294 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:00:09,294 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 14:00:09,294 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:00:09,295 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:00:09,295 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:00:09,295 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 14:00:09,295 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 14:00:09,295 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 14:00:09,295 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:00:09,295 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 14:00:09,296 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 14:00:09,296 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:00:09,296 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:00:09,296 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:00:09,296 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:00:09,296 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:00:09,296 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:00:09,296 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:00:09,297 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:00:09,297 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:00:09,297 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 14:00:09,297 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:00:09,297 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 14:00:09,297 INFO L133 SettingsManager]: * Logic for external solver=AUFBV 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_5896dfc7-837b-4018-b2df-6ca887a5ff52/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 -> c8f17cf5334c3a5b079beafc57a2e2bffaea721f [2018-11-18 14:00:09,324 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:00:09,332 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:00:09,334 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:00:09,335 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:00:09,336 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:00:09,336 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/../../sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c [2018-11-18 14:00:09,371 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/data/8d28664c5/d876c33bdad744f293e58a3061545a23/FLAG67317e1bd [2018-11-18 14:00:09,756 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:00:09,757 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c [2018-11-18 14:00:09,760 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/data/8d28664c5/d876c33bdad744f293e58a3061545a23/FLAG67317e1bd [2018-11-18 14:00:09,769 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/data/8d28664c5/d876c33bdad744f293e58a3061545a23 [2018-11-18 14:00:09,772 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:00:09,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:00:09,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:00:09,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:00:09,775 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:00:09,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:00:09" (1/1) ... [2018-11-18 14:00:09,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f01b6cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:09, skipping insertion in model container [2018-11-18 14:00:09,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:00:09" (1/1) ... [2018-11-18 14:00:09,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:00:09,796 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:00:09,918 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:00:09,929 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:00:09,940 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:00:09,951 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:00:09,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:09 WrapperNode [2018-11-18 14:00:09,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:00:09,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:00:09,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:00:09,953 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:00:09,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:09" (1/1) ... [2018-11-18 14:00:09,964 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:09" (1/1) ... [2018-11-18 14:00:09,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:00:09,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:00:09,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:00:09,968 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:00:09,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:09" (1/1) ... [2018-11-18 14:00:09,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:09" (1/1) ... [2018-11-18 14:00:09,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:09" (1/1) ... [2018-11-18 14:00:09,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:09" (1/1) ... [2018-11-18 14:00:09,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:09" (1/1) ... [2018-11-18 14:00:09,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:09" (1/1) ... [2018-11-18 14:00:09,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:09" (1/1) ... [2018-11-18 14:00:09,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:00:09,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:00:09,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:00:09,984 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:00:09,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:00:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:00:10,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:00:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:00:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:00:10,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:00:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:00:10,057 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:00:10,057 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-11-18 14:00:10,057 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-11-18 14:00:10,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 14:00:10,197 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:00:10,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:00:10 BoogieIcfgContainer [2018-11-18 14:00:10,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:00:10,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:00:10,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:00:10,200 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:00:10,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:00:09" (1/3) ... [2018-11-18 14:00:10,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c33e41c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:00:10, skipping insertion in model container [2018-11-18 14:00:10,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:09" (2/3) ... [2018-11-18 14:00:10,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c33e41c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:00:10, skipping insertion in model container [2018-11-18 14:00:10,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:00:10" (3/3) ... [2018-11-18 14:00:10,202 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers3_true-valid-memsafety.c [2018-11-18 14:00:10,208 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:00:10,212 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-11-18 14:00:10,220 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-11-18 14:00:10,237 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:00:10,237 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:00:10,237 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-18 14:00:10,238 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:00:10,238 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:00:10,238 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:00:10,238 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:00:10,238 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:00:10,238 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:00:10,246 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-11-18 14:00:10,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 14:00:10,251 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:00:10,252 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:00:10,254 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 14:00:10,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:00:10,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1097170423, now seen corresponding path program 1 times [2018-11-18 14:00:10,260 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:00:10,260 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:00:10,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:00:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:00:10,308 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:00:10,342 INFO L477 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 [2018-11-18 14:00:10,351 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:00:10,364 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 14:00:10,365 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 14:00:10,384 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:00:10,410 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:00:10,410 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:9, output treesize:21 [2018-11-18 14:00:10,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:00:10,428 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:00:10,433 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:00:10,433 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:00:10,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:00:10,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:00:10,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:00:10,445 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2018-11-18 14:00:10,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:00:10,471 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-11-18 14:00:10,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:00:10,472 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 14:00:10,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:00:10,477 INFO L225 Difference]: With dead ends: 24 [2018-11-18 14:00:10,477 INFO L226 Difference]: Without dead ends: 19 [2018-11-18 14:00:10,478 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:00:10,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-18 14:00:10,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-18 14:00:10,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-18 14:00:10,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-11-18 14:00:10,500 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2018-11-18 14:00:10,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:00:10,500 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-11-18 14:00:10,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:00:10,500 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-11-18 14:00:10,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 14:00:10,500 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:00:10,501 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:00:10,501 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 14:00:10,501 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:00:10,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1097170422, now seen corresponding path program 1 times [2018-11-18 14:00:10,501 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:00:10,501 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:00:10,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:00:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:00:10,535 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:00:10,542 INFO L477 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 14:00:10,542 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:00:10,554 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:00:10,554 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 14:00:10,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:00:10,572 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:00:10,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:00:10,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:00:10,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 14:00:10,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 14:00:10,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 14:00:10,580 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 4 states. [2018-11-18 14:00:10,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:00:10,619 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-11-18 14:00:10,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 14:00:10,619 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-18 14:00:10,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:00:10,620 INFO L225 Difference]: With dead ends: 23 [2018-11-18 14:00:10,620 INFO L226 Difference]: Without dead ends: 23 [2018-11-18 14:00:10,621 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 14:00:10,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-18 14:00:10,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-11-18 14:00:10,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-18 14:00:10,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-11-18 14:00:10,623 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 10 [2018-11-18 14:00:10,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:00:10,624 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-11-18 14:00:10,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 14:00:10,624 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-11-18 14:00:10,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 14:00:10,624 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:00:10,625 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:00:10,625 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 14:00:10,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:00:10,625 INFO L82 PathProgramCache]: Analyzing trace with hash 168216225, now seen corresponding path program 1 times [2018-11-18 14:00:10,626 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:00:10,626 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:00:10,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:00:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:00:10,692 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:00:10,698 INFO L477 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 14:00:10,698 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:00:10,704 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:00:10,705 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 14:00:10,760 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:00:10,760 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:00:11,047 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:00:11,048 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:00:11,049 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:00:11,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:00:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:00:11,070 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:00:11,073 INFO L477 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 14:00:11,074 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:00:11,077 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:00:11,078 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 14:00:11,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:00:11,082 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:00:11,168 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:00:11,184 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 14:00:11,184 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4, 4] total 9 [2018-11-18 14:00:11,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 14:00:11,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 14:00:11,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:00:11,185 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 10 states. [2018-11-18 14:00:11,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:00:11,444 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2018-11-18 14:00:11,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 14:00:11,445 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2018-11-18 14:00:11,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:00:11,447 INFO L225 Difference]: With dead ends: 40 [2018-11-18 14:00:11,447 INFO L226 Difference]: Without dead ends: 40 [2018-11-18 14:00:11,447 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2018-11-18 14:00:11,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-18 14:00:11,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 34. [2018-11-18 14:00:11,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 14:00:11,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-11-18 14:00:11,450 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 14 [2018-11-18 14:00:11,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:00:11,450 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-11-18 14:00:11,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 14:00:11,451 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-11-18 14:00:11,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 14:00:11,451 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:00:11,451 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:00:11,451 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 14:00:11,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:00:11,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1146110664, now seen corresponding path program 1 times [2018-11-18 14:00:11,452 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:00:11,452 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:00:11,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:00:11,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:00:11,491 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:00:11,502 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:00:11,502 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:00:11,545 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:00:11,546 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:00:11,546 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:00:11,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:00:11,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:00:11,566 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:00:11,610 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 14:00:11,610 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:00:11,625 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:00:11,625 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 12 [2018-11-18 14:00:11,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 14:00:11,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 14:00:11,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-11-18 14:00:11,626 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 12 states. [2018-11-18 14:00:11,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:00:11,885 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2018-11-18 14:00:11,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 14:00:11,886 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2018-11-18 14:00:11,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:00:11,887 INFO L225 Difference]: With dead ends: 41 [2018-11-18 14:00:11,887 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 14:00:11,887 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2018-11-18 14:00:11,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 14:00:11,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2018-11-18 14:00:11,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-18 14:00:11,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2018-11-18 14:00:11,890 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 22 [2018-11-18 14:00:11,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:00:11,890 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2018-11-18 14:00:11,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 14:00:11,890 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2018-11-18 14:00:11,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 14:00:11,891 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:00:11,891 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:00:11,891 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 14:00:11,891 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:00:11,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1303756646, now seen corresponding path program 2 times [2018-11-18 14:00:11,891 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:00:11,892 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:00:11,906 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-18 14:00:11,949 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 14:00:11,949 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 14:00:11,958 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:00:11,960 INFO L477 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 14:00:11,961 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:00:11,964 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:00:11,964 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 14:00:12,033 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:00:12,033 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:00:12,648 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:00:12,649 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:00:12,649 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:00:12,655 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 14:00:12,679 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 14:00:12,680 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 14:00:12,682 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:00:12,685 INFO L477 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 14:00:12,686 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:00:12,689 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:00:12,689 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 14:00:12,741 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:00:12,741 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:00:14,054 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:00:14,070 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 14:00:14,070 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7, 9] total 20 [2018-11-18 14:00:14,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-18 14:00:14,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-18 14:00:14,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2018-11-18 14:00:14,071 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 21 states. [2018-11-18 14:00:15,040 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 24 [2018-11-18 14:00:15,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:00:15,041 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2018-11-18 14:00:15,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 14:00:15,041 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 26 [2018-11-18 14:00:15,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:00:15,043 INFO L225 Difference]: With dead ends: 69 [2018-11-18 14:00:15,043 INFO L226 Difference]: Without dead ends: 69 [2018-11-18 14:00:15,044 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 78 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=233, Invalid=469, Unknown=0, NotChecked=0, Total=702 [2018-11-18 14:00:15,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-11-18 14:00:15,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 57. [2018-11-18 14:00:15,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-11-18 14:00:15,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2018-11-18 14:00:15,047 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 26 [2018-11-18 14:00:15,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:00:15,047 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2018-11-18 14:00:15,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-18 14:00:15,048 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2018-11-18 14:00:15,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 14:00:15,048 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:00:15,048 INFO L375 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:00:15,048 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 14:00:15,049 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:00:15,049 INFO L82 PathProgramCache]: Analyzing trace with hash -225552859, now seen corresponding path program 1 times [2018-11-18 14:00:15,049 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:00:15,049 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:00:15,060 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:00:15,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:00:15,114 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:00:15,158 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:00:15,158 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:00:15,275 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:00:15,277 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:00:15,277 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:00:15,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:00:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:00:15,308 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:00:15,317 INFO L477 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 14:00:15,317 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:00:15,321 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:00:15,322 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 14:00:15,422 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-18 14:00:15,422 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:00:15,438 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:00:15,438 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 9] total 20 [2018-11-18 14:00:15,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-18 14:00:15,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-18 14:00:15,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2018-11-18 14:00:15,439 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand 20 states. [2018-11-18 14:00:15,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:00:15,959 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2018-11-18 14:00:15,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-18 14:00:15,959 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 38 [2018-11-18 14:00:15,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:00:15,959 INFO L225 Difference]: With dead ends: 56 [2018-11-18 14:00:15,959 INFO L226 Difference]: Without dead ends: 51 [2018-11-18 14:00:15,960 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=216, Invalid=840, Unknown=0, NotChecked=0, Total=1056 [2018-11-18 14:00:15,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-11-18 14:00:15,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-11-18 14:00:15,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-11-18 14:00:15,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-11-18 14:00:15,963 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 38 [2018-11-18 14:00:15,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:00:15,963 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-11-18 14:00:15,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-18 14:00:15,963 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-11-18 14:00:15,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-18 14:00:15,964 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:00:15,964 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:00:15,964 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-11-18 14:00:15,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:00:15,964 INFO L82 PathProgramCache]: Analyzing trace with hash 318173808, now seen corresponding path program 3 times [2018-11-18 14:00:15,964 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:00:15,964 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:00:15,976 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-18 14:00:16,622 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2018-11-18 14:00:16,623 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 14:00:16,654 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:00:16,840 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 10 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:00:16,840 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:00:17,892 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 10 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:00:17,895 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:00:17,895 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:00:17,901 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 14:00:18,515 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2018-11-18 14:00:18,515 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 14:00:18,521 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:00:18,585 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 10 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:00:18,585 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:00:19,219 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 10 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:00:19,236 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 14:00:19,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 20, 15, 18] total 38 [2018-11-18 14:00:19,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-11-18 14:00:19,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-11-18 14:00:19,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=1145, Unknown=0, NotChecked=0, Total=1406 [2018-11-18 14:00:19,237 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 38 states. [2018-11-18 14:00:19,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:00:19,673 INFO L93 Difference]: Finished difference Result 49 states and 48 transitions. [2018-11-18 14:00:19,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 14:00:19,673 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 50 [2018-11-18 14:00:19,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:00:19,673 INFO L225 Difference]: With dead ends: 49 [2018-11-18 14:00:19,674 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 14:00:19,674 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 148 SyntacticMatches, 14 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=288, Invalid=1194, Unknown=0, NotChecked=0, Total=1482 [2018-11-18 14:00:19,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 14:00:19,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 14:00:19,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 14:00:19,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 14:00:19,675 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2018-11-18 14:00:19,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:00:19,675 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:00:19,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-11-18 14:00:19,675 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 14:00:19,675 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 14:00:19,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:00:19 BoogieIcfgContainer [2018-11-18 14:00:19,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:00:19,678 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:00:19,678 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:00:19,678 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:00:19,679 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:00:10" (3/4) ... [2018-11-18 14:00:19,681 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 14:00:19,684 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 14:00:19,685 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 14:00:19,685 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2018-11-18 14:00:19,687 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-18 14:00:19,687 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 14:00:19,687 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 14:00:19,712 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5896dfc7-837b-4018-b2df-6ca887a5ff52/bin-2019/utaipan/witness.graphml [2018-11-18 14:00:19,712 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:00:19,712 INFO L168 Benchmark]: Toolchain (without parser) took 9940.33 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 285.2 MB). Free memory was 949.2 MB in the beginning and 1.2 GB in the end (delta: -208.1 MB). Peak memory consumption was 77.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:00:19,713 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:00:19,713 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.80 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:00:19,713 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.40 ms. Allocated memory is still 1.0 GB. Free memory was 938.5 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:00:19,714 INFO L168 Benchmark]: Boogie Preprocessor took 15.22 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:00:19,714 INFO L168 Benchmark]: RCFGBuilder took 214.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -201.5 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:00:19,714 INFO L168 Benchmark]: TraceAbstraction took 9479.95 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 127.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -25.7 MB). Peak memory consumption was 101.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:00:19,715 INFO L168 Benchmark]: Witness Printer took 33.69 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 11.5 GB. [2018-11-18 14:00:19,716 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 178.80 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.40 ms. Allocated memory is still 1.0 GB. Free memory was 938.5 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.22 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 214.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -201.5 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9479.95 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 127.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -25.7 MB). Peak memory consumption was 101.7 MB. Max. memory is 11.5 GB. * Witness Printer took 33.69 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: 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, 26 locations, 5 error locations. SAFE Result, 9.4s OverallTime, 7 OverallIterations, 11 TraceHistogramMax, 2.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 108 SDtfs, 412 SDslu, 517 SDs, 0 SdLazy, 1211 SolverSat, 116 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 584 GetRequests, 440 SyntacticMatches, 20 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 899 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=5, 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, 7 MinimizatonAttempts, 20 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 320 NumberOfCodeBlocks, 320 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 540 ConstructedInterpolants, 0 QuantifiedInterpolants, 232124 SizeOfPredicates, 13 NumberOfNonLiveVariables, 840 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 20 InterpolantComputations, 4 PerfectInterpolantSequences, 120/1236 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...