./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c826d252-1fde-447c-b8e9-414a2ae67d62/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c826d252-1fde-447c-b8e9-414a2ae67d62/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c826d252-1fde-447c-b8e9-414a2ae67d62/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c826d252-1fde-447c-b8e9-414a2ae67d62/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_c826d252-1fde-447c-b8e9-414a2ae67d62/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c826d252-1fde-447c-b8e9-414a2ae67d62/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 0.1.23-635dfa2 [2018-12-09 16:07:58,369 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 16:07:58,370 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 16:07:58,377 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 16:07:58,377 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 16:07:58,378 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 16:07:58,378 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 16:07:58,380 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 16:07:58,381 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 16:07:58,381 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 16:07:58,382 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 16:07:58,382 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 16:07:58,383 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 16:07:58,383 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 16:07:58,384 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 16:07:58,384 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 16:07:58,384 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 16:07:58,385 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 16:07:58,386 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 16:07:58,387 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 16:07:58,387 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 16:07:58,388 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 16:07:58,390 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 16:07:58,390 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 16:07:58,390 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 16:07:58,390 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 16:07:58,391 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 16:07:58,391 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 16:07:58,392 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 16:07:58,392 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 16:07:58,393 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 16:07:58,393 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 16:07:58,393 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 16:07:58,393 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 16:07:58,394 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 16:07:58,394 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 16:07:58,395 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c826d252-1fde-447c-b8e9-414a2ae67d62/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-12-09 16:07:58,405 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 16:07:58,405 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 16:07:58,405 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 16:07:58,406 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 16:07:58,406 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 16:07:58,406 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 16:07:58,406 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 16:07:58,406 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 16:07:58,406 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 16:07:58,407 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 16:07:58,407 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 16:07:58,407 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 16:07:58,407 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 16:07:58,408 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 16:07:58,408 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 16:07:58,408 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 16:07:58,408 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 16:07:58,408 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 16:07:58,408 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 16:07:58,408 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 16:07:58,409 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 16:07:58,409 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 16:07:58,409 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 16:07:58,409 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 16:07:58,409 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 16:07:58,409 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 16:07:58,410 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 16:07:58,410 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 16:07:58,410 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 16:07:58,410 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 16:07:58,410 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 16:07:58,410 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 16:07:58,411 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 16:07:58,411 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 16:07:58,411 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 16:07:58,411 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 16:07:58,411 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_c826d252-1fde-447c-b8e9-414a2ae67d62/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 [2018-12-09 16:07:58,434 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 16:07:58,441 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 16:07:58,443 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 16:07:58,444 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 16:07:58,444 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 16:07:58,444 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c826d252-1fde-447c-b8e9-414a2ae67d62/bin-2019/utaipan/../../sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c [2018-12-09 16:07:58,481 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c826d252-1fde-447c-b8e9-414a2ae67d62/bin-2019/utaipan/data/a0fed6dcd/00302a61c4a04470a0963a729f35822d/FLAGdee51f776 [2018-12-09 16:07:58,896 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 16:07:58,896 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c826d252-1fde-447c-b8e9-414a2ae67d62/sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c [2018-12-09 16:07:58,900 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c826d252-1fde-447c-b8e9-414a2ae67d62/bin-2019/utaipan/data/a0fed6dcd/00302a61c4a04470a0963a729f35822d/FLAGdee51f776 [2018-12-09 16:07:58,909 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c826d252-1fde-447c-b8e9-414a2ae67d62/bin-2019/utaipan/data/a0fed6dcd/00302a61c4a04470a0963a729f35822d [2018-12-09 16:07:58,912 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 16:07:58,913 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 16:07:58,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 16:07:58,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 16:07:58,915 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 16:07:58,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:07:58" (1/1) ... [2018-12-09 16:07:58,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@343f3083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:07:58, skipping insertion in model container [2018-12-09 16:07:58,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:07:58" (1/1) ... [2018-12-09 16:07:58,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 16:07:58,930 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 16:07:59,026 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:07:59,033 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 16:07:59,042 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:07:59,052 INFO L195 MainTranslator]: Completed translation [2018-12-09 16:07:59,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:07:59 WrapperNode [2018-12-09 16:07:59,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 16:07:59,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 16:07:59,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 16:07:59,053 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 16:07:59,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:07:59" (1/1) ... [2018-12-09 16:07:59,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:07:59" (1/1) ... [2018-12-09 16:07:59,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 16:07:59,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 16:07:59,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 16:07:59,067 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 16:07:59,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:07:59" (1/1) ... [2018-12-09 16:07:59,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:07:59" (1/1) ... [2018-12-09 16:07:59,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:07:59" (1/1) ... [2018-12-09 16:07:59,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:07:59" (1/1) ... [2018-12-09 16:07:59,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:07:59" (1/1) ... [2018-12-09 16:07:59,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:07:59" (1/1) ... [2018-12-09 16:07:59,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:07:59" (1/1) ... [2018-12-09 16:07:59,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 16:07:59,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 16:07:59,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 16:07:59,118 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 16:07:59,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:07:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c826d252-1fde-447c-b8e9-414a2ae67d62/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 16:07:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 16:07:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 16:07:59,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 16:07:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 16:07:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 16:07:59,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 16:07:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 16:07:59,153 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 16:07:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 16:07:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-12-09 16:07:59,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-12-09 16:07:59,253 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 16:07:59,254 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 16:07:59,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:07:59 BoogieIcfgContainer [2018-12-09 16:07:59,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 16:07:59,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 16:07:59,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 16:07:59,256 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 16:07:59,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:07:58" (1/3) ... [2018-12-09 16:07:59,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1470aa38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:07:59, skipping insertion in model container [2018-12-09 16:07:59,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:07:59" (2/3) ... [2018-12-09 16:07:59,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1470aa38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:07:59, skipping insertion in model container [2018-12-09 16:07:59,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:07:59" (3/3) ... [2018-12-09 16:07:59,258 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers3_true-valid-memsafety.c [2018-12-09 16:07:59,263 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 16:07:59,268 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-12-09 16:07:59,276 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-12-09 16:07:59,290 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 16:07:59,290 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-09 16:07:59,290 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 16:07:59,291 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 16:07:59,291 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 16:07:59,291 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 16:07:59,291 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 16:07:59,291 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 16:07:59,299 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-12-09 16:07:59,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 16:07:59,303 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:07:59,304 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:07:59,305 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-12-09 16:07:59,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:07:59,308 INFO L82 PathProgramCache]: Analyzing trace with hash -335730452, now seen corresponding path program 1 times [2018-12-09 16:07:59,309 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:07:59,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:07:59,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:07:59,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:07:59,336 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:07:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:07:59,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:07:59,401 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:07:59,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 16:07:59,401 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:07:59,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 16:07:59,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 16:07:59,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 16:07:59,413 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 3 states. [2018-12-09 16:07:59,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:07:59,436 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-12-09 16:07:59,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 16:07:59,437 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-09 16:07:59,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:07:59,442 INFO L225 Difference]: With dead ends: 23 [2018-12-09 16:07:59,443 INFO L226 Difference]: Without dead ends: 18 [2018-12-09 16:07:59,444 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 16:07:59,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-12-09 16:07:59,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-12-09 16:07:59,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-09 16:07:59,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-12-09 16:07:59,463 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 9 [2018-12-09 16:07:59,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:07:59,463 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-12-09 16:07:59,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 16:07:59,463 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-12-09 16:07:59,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 16:07:59,464 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:07:59,464 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:07:59,464 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-12-09 16:07:59,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:07:59,465 INFO L82 PathProgramCache]: Analyzing trace with hash -335730451, now seen corresponding path program 1 times [2018-12-09 16:07:59,465 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:07:59,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:07:59,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:07:59,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:07:59,466 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:07:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:07:59,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:07:59,572 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:07:59,572 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 16:07:59,572 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:07:59,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 16:07:59,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 16:07:59,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-09 16:07:59,574 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2018-12-09 16:07:59,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:07:59,605 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-12-09 16:07:59,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 16:07:59,605 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-12-09 16:07:59,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:07:59,606 INFO L225 Difference]: With dead ends: 21 [2018-12-09 16:07:59,606 INFO L226 Difference]: Without dead ends: 21 [2018-12-09 16:07:59,606 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-09 16:07:59,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-12-09 16:07:59,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2018-12-09 16:07:59,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-12-09 16:07:59,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-12-09 16:07:59,609 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 9 [2018-12-09 16:07:59,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:07:59,609 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-12-09 16:07:59,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 16:07:59,609 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-12-09 16:07:59,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 16:07:59,609 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:07:59,609 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:07:59,609 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-12-09 16:07:59,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:07:59,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1232932722, now seen corresponding path program 1 times [2018-12-09 16:07:59,610 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:07:59,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:07:59,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:07:59,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:07:59,611 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:07:59,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:07:59,693 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:07:59,693 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 16:07:59,693 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 16:07:59,693 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2018-12-09 16:07:59,694 INFO L205 CegarAbsIntRunner]: [0], [1], [13], [21], [22], [24], [26], [32], [33], [34], [36] [2018-12-09 16:07:59,714 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 16:07:59,714 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 16:07:59,824 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 16:07:59,824 INFO L272 AbstractInterpreter]: Visited 11 different actions 27 times. Merged at 4 different actions 16 times. Never widened. Performed 202 root evaluator evaluations with a maximum evaluation depth of 4. Performed 202 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 1 fixpoints after 1 different actions. Largest state had 16 variables. [2018-12-09 16:07:59,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:07:59,829 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 16:07:59,829 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 16:07:59,829 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c826d252-1fde-447c-b8e9-414a2ae67d62/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 16:07:59,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:07:59,836 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 16:07:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:07:59,853 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:07:59,874 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-09 16:07:59,875 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:07:59,878 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:07:59,878 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-12-09 16:07:59,925 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:07:59,925 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 16:07:59,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:07:59,987 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 16:07:59,987 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2018-12-09 16:07:59,987 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 16:07:59,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 16:07:59,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 16:07:59,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-12-09 16:07:59,988 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 9 states. [2018-12-09 16:08:00,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:08:00,048 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-12-09 16:08:00,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 16:08:00,048 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2018-12-09 16:08:00,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:08:00,048 INFO L225 Difference]: With dead ends: 24 [2018-12-09 16:08:00,049 INFO L226 Difference]: Without dead ends: 24 [2018-12-09 16:08:00,049 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2018-12-09 16:08:00,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-12-09 16:08:00,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-12-09 16:08:00,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-09 16:08:00,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-12-09 16:08:00,051 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 12 [2018-12-09 16:08:00,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:08:00,051 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-12-09 16:08:00,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 16:08:00,051 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-12-09 16:08:00,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 16:08:00,052 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:08:00,052 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:08:00,052 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-12-09 16:08:00,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:08:00,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1135899522, now seen corresponding path program 1 times [2018-12-09 16:08:00,052 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:08:00,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:08:00,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:08:00,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:08:00,053 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:08:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:08:00,092 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-09 16:08:00,092 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:08:00,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 16:08:00,092 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:08:00,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 16:08:00,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 16:08:00,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-09 16:08:00,093 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 6 states. [2018-12-09 16:08:00,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:08:00,119 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-12-09 16:08:00,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 16:08:00,119 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-12-09 16:08:00,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:08:00,120 INFO L225 Difference]: With dead ends: 23 [2018-12-09 16:08:00,120 INFO L226 Difference]: Without dead ends: 23 [2018-12-09 16:08:00,120 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-12-09 16:08:00,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-12-09 16:08:00,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-12-09 16:08:00,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-12-09 16:08:00,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-12-09 16:08:00,122 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 22 [2018-12-09 16:08:00,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:08:00,122 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-12-09 16:08:00,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 16:08:00,122 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-12-09 16:08:00,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 16:08:00,122 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:08:00,123 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:08:00,123 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-12-09 16:08:00,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:08:00,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1135899523, now seen corresponding path program 1 times [2018-12-09 16:08:00,123 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:08:00,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:08:00,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:08:00,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:08:00,124 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:08:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:08:00,162 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:08:00,163 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 16:08:00,163 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 16:08:00,163 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 23 with the following transitions: [2018-12-09 16:08:00,163 INFO L205 CegarAbsIntRunner]: [0], [1], [6], [9], [13], [19], [21], [22], [26], [30], [31], [32], [33], [34], [36], [37] [2018-12-09 16:08:00,164 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 16:08:00,164 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 16:08:00,205 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 16:08:00,205 INFO L272 AbstractInterpreter]: Visited 16 different actions 35 times. Merged at 6 different actions 15 times. Widened at 1 different actions 1 times. Performed 205 root evaluator evaluations with a maximum evaluation depth of 4. Performed 205 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 3 fixpoints after 3 different actions. Largest state had 18 variables. [2018-12-09 16:08:00,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:08:00,207 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 16:08:00,207 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 16:08:00,207 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c826d252-1fde-447c-b8e9-414a2ae67d62/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 16:08:00,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:08:00,213 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 16:08:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:08:00,225 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:08:00,231 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:08:00,232 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 16:08:00,272 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:08:00,286 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 16:08:00,287 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2018-12-09 16:08:00,287 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 16:08:00,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 16:08:00,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 16:08:00,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-12-09 16:08:00,287 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 7 states. [2018-12-09 16:08:00,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:08:00,303 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-12-09 16:08:00,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 16:08:00,304 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-12-09 16:08:00,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:08:00,304 INFO L225 Difference]: With dead ends: 28 [2018-12-09 16:08:00,304 INFO L226 Difference]: Without dead ends: 28 [2018-12-09 16:08:00,304 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-12-09 16:08:00,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-12-09 16:08:00,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2018-12-09 16:08:00,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-12-09 16:08:00,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2018-12-09 16:08:00,306 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 22 [2018-12-09 16:08:00,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:08:00,307 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2018-12-09 16:08:00,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 16:08:00,307 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2018-12-09 16:08:00,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 16:08:00,307 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:08:00,307 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:08:00,307 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-12-09 16:08:00,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:08:00,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1477178082, now seen corresponding path program 2 times [2018-12-09 16:08:00,308 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:08:00,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:08:00,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:08:00,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:08:00,308 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:08:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:08:00,342 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:08:00,342 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 16:08:00,342 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 16:08:00,342 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-09 16:08:00,342 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-09 16:08:00,342 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 16:08:00,343 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c826d252-1fde-447c-b8e9-414a2ae67d62/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 16:08:00,349 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-09 16:08:00,349 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-09 16:08:00,358 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2018-12-09 16:08:00,359 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-09 16:08:00,360 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:08:00,362 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-09 16:08:00,363 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:08:00,366 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:08:00,366 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-12-09 16:08:00,404 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-12-09 16:08:00,404 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 16:08:00,476 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-12-09 16:08:00,490 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-09 16:08:00,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [7] total 15 [2018-12-09 16:08:00,490 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:08:00,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 16:08:00,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 16:08:00,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2018-12-09 16:08:00,491 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 6 states. [2018-12-09 16:08:00,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:08:00,524 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-12-09 16:08:00,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 16:08:00,524 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-12-09 16:08:00,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:08:00,524 INFO L225 Difference]: With dead ends: 25 [2018-12-09 16:08:00,525 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 16:08:00,525 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2018-12-09 16:08:00,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 16:08:00,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 16:08:00,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 16:08:00,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 16:08:00,526 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-12-09 16:08:00,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:08:00,526 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 16:08:00,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 16:08:00,526 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 16:08:00,526 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 16:08:00,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:08:00 BoogieIcfgContainer [2018-12-09 16:08:00,529 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 16:08:00,529 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 16:08:00,529 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 16:08:00,529 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 16:08:00,529 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:07:59" (3/4) ... [2018-12-09 16:08:00,531 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 16:08:00,535 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 16:08:00,535 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 16:08:00,535 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2018-12-09 16:08:00,537 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-12-09 16:08:00,537 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-09 16:08:00,537 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 16:08:00,537 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 16:08:00,558 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c826d252-1fde-447c-b8e9-414a2ae67d62/bin-2019/utaipan/witness.graphml [2018-12-09 16:08:00,558 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 16:08:00,559 INFO L168 Benchmark]: Toolchain (without parser) took 1646.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 949.7 MB in the beginning and 897.7 MB in the end (delta: 52.0 MB). Peak memory consumption was 207.2 MB. Max. memory is 11.5 GB. [2018-12-09 16:08:00,560 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:08:00,560 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.95 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 938.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 16:08:00,560 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.62 ms. Allocated memory is still 1.0 GB. Free memory is still 938.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:08:00,560 INFO L168 Benchmark]: Boogie Preprocessor took 51.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 938.9 MB in the beginning and 1.2 GB in the end (delta: -211.5 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-09 16:08:00,561 INFO L168 Benchmark]: RCFGBuilder took 135.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-12-09 16:08:00,561 INFO L168 Benchmark]: TraceAbstraction took 1274.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 901.0 MB in the end (delta: 234.8 MB). Peak memory consumption was 234.8 MB. Max. memory is 11.5 GB. [2018-12-09 16:08:00,561 INFO L168 Benchmark]: Witness Printer took 29.46 ms. Allocated memory is still 1.2 GB. Free memory was 901.0 MB in the beginning and 897.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-09 16:08:00,563 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 139.95 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 938.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.62 ms. Allocated memory is still 1.0 GB. Free memory is still 938.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 938.9 MB in the beginning and 1.2 GB in the end (delta: -211.5 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 135.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1274.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 901.0 MB in the end (delta: 234.8 MB). Peak memory consumption was 234.8 MB. Max. memory is 11.5 GB. * Witness Printer took 29.46 ms. Allocated memory is still 1.2 GB. Free memory was 901.0 MB in the beginning and 897.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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: 14]: 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 - 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, 25 locations, 5 error locations. SAFE Result, 1.2s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 78 SDtfs, 82 SDslu, 109 SDs, 0 SdLazy, 153 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 2 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 158 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 205 ConstructedInterpolants, 0 QuantifiedInterpolants, 19027 SizeOfPredicates, 5 NumberOfNonLiveVariables, 256 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 57/120 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...