./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/array03-alloca_true-valid-memsafety_true-termination.i --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_0f63bb40-ff1c-431d-bdc4-d1f12ee37b0d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0f63bb40-ff1c-431d-bdc4-d1f12ee37b0d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0f63bb40-ff1c-431d-bdc4-d1f12ee37b0d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0f63bb40-ff1c-431d-bdc4-d1f12ee37b0d/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/array03-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0f63bb40-ff1c-431d-bdc4-d1f12ee37b0d/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0f63bb40-ff1c-431d-bdc4-d1f12ee37b0d/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 dc8491de7bb3fbae410adb8e5711b9887b8c9c8f .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 03:32:31,442 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 03:32:31,443 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 03:32:31,449 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 03:32:31,449 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 03:32:31,450 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 03:32:31,450 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 03:32:31,451 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 03:32:31,452 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 03:32:31,452 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 03:32:31,453 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 03:32:31,453 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 03:32:31,453 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 03:32:31,454 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 03:32:31,455 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 03:32:31,455 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 03:32:31,455 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 03:32:31,456 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 03:32:31,457 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 03:32:31,458 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 03:32:31,458 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 03:32:31,459 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 03:32:31,460 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 03:32:31,460 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 03:32:31,460 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 03:32:31,461 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 03:32:31,461 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 03:32:31,462 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 03:32:31,462 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 03:32:31,463 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 03:32:31,463 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 03:32:31,463 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 03:32:31,464 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 03:32:31,464 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 03:32:31,464 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 03:32:31,465 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 03:32:31,465 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0f63bb40-ff1c-431d-bdc4-d1f12ee37b0d/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-12-03 03:32:31,472 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 03:32:31,472 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 03:32:31,472 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 03:32:31,473 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 03:32:31,473 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 03:32:31,473 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 03:32:31,473 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 03:32:31,473 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 03:32:31,473 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 03:32:31,473 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 03:32:31,473 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 03:32:31,474 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 03:32:31,474 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 03:32:31,474 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 03:32:31,474 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 03:32:31,474 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 03:32:31,474 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 03:32:31,475 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-03 03:32:31,475 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 03:32:31,475 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 03:32:31,475 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 03:32:31,475 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-03 03:32:31,475 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-03 03:32:31,475 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-03 03:32:31,475 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 03:32:31,476 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 03:32:31,476 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 03:32:31,476 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 03:32:31,476 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 03:32:31,476 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 03:32:31,476 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 03:32:31,476 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 03:32:31,476 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 03:32:31,477 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 03:32:31,477 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 03:32:31,477 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 03:32:31,477 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_0f63bb40-ff1c-431d-bdc4-d1f12ee37b0d/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 -> dc8491de7bb3fbae410adb8e5711b9887b8c9c8f [2018-12-03 03:32:31,494 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 03:32:31,501 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 03:32:31,503 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 03:32:31,504 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 03:32:31,504 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 03:32:31,504 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0f63bb40-ff1c-431d-bdc4-d1f12ee37b0d/bin-2019/utaipan/../../sv-benchmarks/c/array-memsafety/array03-alloca_true-valid-memsafety_true-termination.i [2018-12-03 03:32:31,539 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0f63bb40-ff1c-431d-bdc4-d1f12ee37b0d/bin-2019/utaipan/data/d8e58f740/a8a98be8597749798df274fe107e8b4e/FLAGce526c482 [2018-12-03 03:32:31,951 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 03:32:31,952 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0f63bb40-ff1c-431d-bdc4-d1f12ee37b0d/sv-benchmarks/c/array-memsafety/array03-alloca_true-valid-memsafety_true-termination.i [2018-12-03 03:32:31,961 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0f63bb40-ff1c-431d-bdc4-d1f12ee37b0d/bin-2019/utaipan/data/d8e58f740/a8a98be8597749798df274fe107e8b4e/FLAGce526c482 [2018-12-03 03:32:31,971 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0f63bb40-ff1c-431d-bdc4-d1f12ee37b0d/bin-2019/utaipan/data/d8e58f740/a8a98be8597749798df274fe107e8b4e [2018-12-03 03:32:31,973 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 03:32:31,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 03:32:31,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 03:32:31,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 03:32:31,977 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 03:32:31,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:32:31" (1/1) ... [2018-12-03 03:32:31,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e93016c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:32:31, skipping insertion in model container [2018-12-03 03:32:31,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:32:31" (1/1) ... [2018-12-03 03:32:31,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 03:32:32,009 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 03:32:32,163 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:32:32,170 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 03:32:32,228 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:32:32,260 INFO L195 MainTranslator]: Completed translation [2018-12-03 03:32:32,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:32:32 WrapperNode [2018-12-03 03:32:32,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 03:32:32,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 03:32:32,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 03:32:32,261 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 03:32:32,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:32:32" (1/1) ... [2018-12-03 03:32:32,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:32:32" (1/1) ... [2018-12-03 03:32:32,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 03:32:32,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 03:32:32,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 03:32:32,279 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 03:32:32,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:32:32" (1/1) ... [2018-12-03 03:32:32,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:32:32" (1/1) ... [2018-12-03 03:32:32,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:32:32" (1/1) ... [2018-12-03 03:32:32,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:32:32" (1/1) ... [2018-12-03 03:32:32,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:32:32" (1/1) ... [2018-12-03 03:32:32,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:32:32" (1/1) ... [2018-12-03 03:32:32,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:32:32" (1/1) ... [2018-12-03 03:32:32,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 03:32:32,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 03:32:32,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 03:32:32,294 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 03:32:32,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:32:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f63bb40-ff1c-431d-bdc4-d1f12ee37b0d/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 [2018-12-03 03:32:32,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 03:32:32,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-03 03:32:32,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-03 03:32:32,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 03:32:32,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 03:32:32,326 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 03:32:32,326 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 03:32:32,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 03:32:32,326 INFO L130 BoogieDeclarations]: Found specification of procedure test_fun [2018-12-03 03:32:32,326 INFO L138 BoogieDeclarations]: Found implementation of procedure test_fun [2018-12-03 03:32:32,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 03:32:32,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 03:32:32,465 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 03:32:32,465 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-03 03:32:32,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:32:32 BoogieIcfgContainer [2018-12-03 03:32:32,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 03:32:32,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 03:32:32,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 03:32:32,468 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 03:32:32,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 03:32:31" (1/3) ... [2018-12-03 03:32:32,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17e32a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:32:32, skipping insertion in model container [2018-12-03 03:32:32,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:32:32" (2/3) ... [2018-12-03 03:32:32,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17e32a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:32:32, skipping insertion in model container [2018-12-03 03:32:32,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:32:32" (3/3) ... [2018-12-03 03:32:32,470 INFO L112 eAbstractionObserver]: Analyzing ICFG array03-alloca_true-valid-memsafety_true-termination.i [2018-12-03 03:32:32,475 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 03:32:32,479 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-12-03 03:32:32,488 INFO L257 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2018-12-03 03:32:32,504 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 03:32:32,504 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-03 03:32:32,504 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 03:32:32,504 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 03:32:32,504 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 03:32:32,504 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 03:32:32,504 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 03:32:32,505 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 03:32:32,513 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-12-03 03:32:32,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-03 03:32:32,518 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:32:32,519 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:32:32,520 INFO L423 AbstractCegarLoop]: === Iteration 1 === [test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-03 03:32:32,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:32:32,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1884500439, now seen corresponding path program 1 times [2018-12-03 03:32:32,524 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:32:32,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:32:32,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:32:32,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:32:32,552 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:32:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:32:32,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:32:32,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:32:32,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 03:32:32,635 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:32:32,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-03 03:32:32,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-03 03:32:32,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-03 03:32:32,647 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 5 states. [2018-12-03 03:32:32,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:32:32,719 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2018-12-03 03:32:32,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-03 03:32:32,720 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-12-03 03:32:32,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:32:32,726 INFO L225 Difference]: With dead ends: 40 [2018-12-03 03:32:32,726 INFO L226 Difference]: Without dead ends: 37 [2018-12-03 03:32:32,727 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-03 03:32:32,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-03 03:32:32,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-12-03 03:32:32,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-03 03:32:32,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2018-12-03 03:32:32,749 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 12 [2018-12-03 03:32:32,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:32:32,749 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2018-12-03 03:32:32,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-03 03:32:32,749 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2018-12-03 03:32:32,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-03 03:32:32,750 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:32:32,750 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:32:32,750 INFO L423 AbstractCegarLoop]: === Iteration 2 === [test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-03 03:32:32,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:32:32,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1884500438, now seen corresponding path program 1 times [2018-12-03 03:32:32,750 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:32:32,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:32:32,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:32:32,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:32:32,751 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:32:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:32:32,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:32:32,821 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:32:32,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-03 03:32:32,821 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:32:32,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 03:32:32,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 03:32:32,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 03:32:32,823 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 6 states. [2018-12-03 03:32:32,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:32:32,920 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2018-12-03 03:32:32,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 03:32:32,921 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-12-03 03:32:32,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:32:32,922 INFO L225 Difference]: With dead ends: 54 [2018-12-03 03:32:32,923 INFO L226 Difference]: Without dead ends: 54 [2018-12-03 03:32:32,923 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-03 03:32:32,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-12-03 03:32:32,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 51. [2018-12-03 03:32:32,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-12-03 03:32:32,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2018-12-03 03:32:32,927 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 12 [2018-12-03 03:32:32,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:32:32,929 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2018-12-03 03:32:32,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 03:32:32,929 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2018-12-03 03:32:32,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-03 03:32:32,929 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:32:32,929 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:32:32,930 INFO L423 AbstractCegarLoop]: === Iteration 3 === [test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-03 03:32:32,930 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:32:32,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1635327560, now seen corresponding path program 1 times [2018-12-03 03:32:32,930 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:32:32,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:32:32,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:32:32,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:32:32,931 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:32:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:32:32,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:32:32,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:32:32,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-03 03:32:32,956 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:32:32,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-03 03:32:32,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-03 03:32:32,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-03 03:32:32,956 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand 5 states. [2018-12-03 03:32:32,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:32:32,994 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2018-12-03 03:32:32,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-03 03:32:32,994 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-12-03 03:32:32,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:32:32,994 INFO L225 Difference]: With dead ends: 54 [2018-12-03 03:32:32,995 INFO L226 Difference]: Without dead ends: 52 [2018-12-03 03:32:32,995 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-03 03:32:32,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-12-03 03:32:32,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2018-12-03 03:32:32,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-12-03 03:32:32,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2018-12-03 03:32:32,998 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 15 [2018-12-03 03:32:32,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:32:32,998 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2018-12-03 03:32:32,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-03 03:32:32,998 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2018-12-03 03:32:32,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-03 03:32:32,998 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:32:32,999 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:32:32,999 INFO L423 AbstractCegarLoop]: === Iteration 4 === [test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-03 03:32:32,999 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:32:32,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1451419308, now seen corresponding path program 1 times [2018-12-03 03:32:32,999 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:32:32,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:32:33,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:32:33,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:32:33,000 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:32:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:32:33,048 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:32:33,049 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:32:33,049 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 03:32:33,049 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-12-03 03:32:33,050 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [10], [11], [13], [16], [31], [36], [54], [58], [66], [69], [73], [78], [79], [80], [82] [2018-12-03 03:32:33,071 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 03:32:33,071 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 03:32:33,161 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 03:32:33,162 INFO L272 AbstractInterpreter]: Visited 18 different actions 19 times. Merged at 1 different actions 1 times. Never widened. Performed 123 root evaluator evaluations with a maximum evaluation depth of 4. Performed 123 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 1 fixpoints after 1 different actions. Largest state had 21 variables. [2018-12-03 03:32:33,167 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:32:33,168 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 03:32:33,168 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:32:33,168 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f63bb40-ff1c-431d-bdc4-d1f12ee37b0d/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 [2018-12-03 03:32:33,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:32:33,174 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 03:32:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:32:33,191 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:32:33,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:32:33,225 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 03:32:33,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:32:33,279 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-03 03:32:33,279 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [8] total 13 [2018-12-03 03:32:33,279 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:32:33,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 03:32:33,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 03:32:33,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-12-03 03:32:33,280 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand 6 states. [2018-12-03 03:32:33,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:32:33,339 INFO L93 Difference]: Finished difference Result 75 states and 84 transitions. [2018-12-03 03:32:33,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 03:32:33,340 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-12-03 03:32:33,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:32:33,340 INFO L225 Difference]: With dead ends: 75 [2018-12-03 03:32:33,340 INFO L226 Difference]: Without dead ends: 75 [2018-12-03 03:32:33,341 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2018-12-03 03:32:33,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-12-03 03:32:33,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2018-12-03 03:32:33,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-12-03 03:32:33,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2018-12-03 03:32:33,344 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 19 [2018-12-03 03:32:33,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:32:33,345 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2018-12-03 03:32:33,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 03:32:33,345 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2018-12-03 03:32:33,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-03 03:32:33,345 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:32:33,345 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:32:33,345 INFO L423 AbstractCegarLoop]: === Iteration 5 === [test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-03 03:32:33,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:32:33,346 INFO L82 PathProgramCache]: Analyzing trace with hash -2038225322, now seen corresponding path program 1 times [2018-12-03 03:32:33,346 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:32:33,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:32:33,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:32:33,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:32:33,347 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:32:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:32:33,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:32:33,410 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:32:33,410 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 03:32:33,410 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-12-03 03:32:33,410 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [10], [11], [13], [16], [31], [36], [54], [58], [66], [71], [73], [78], [79], [80], [82] [2018-12-03 03:32:33,411 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 03:32:33,411 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 03:32:33,470 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 03:32:33,470 INFO L272 AbstractInterpreter]: Visited 18 different actions 34 times. Merged at 8 different actions 16 times. Never widened. Performed 238 root evaluator evaluations with a maximum evaluation depth of 4. Performed 238 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 1 fixpoints after 1 different actions. Largest state had 21 variables. [2018-12-03 03:32:33,472 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:32:33,472 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 03:32:33,472 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:32:33,472 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f63bb40-ff1c-431d-bdc4-d1f12ee37b0d/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 [2018-12-03 03:32:33,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:32:33,480 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 03:32:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:32:33,492 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:32:33,507 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 8 treesize of output 7 [2018-12-03 03:32:33,508 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-03 03:32:33,513 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 03:32:33,514 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-03 03:32:33,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:32:33,600 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 03:32:33,721 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:32:33,735 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 03:32:33,735 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 16 [2018-12-03 03:32:33,735 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 03:32:33,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-03 03:32:33,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-03 03:32:33,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2018-12-03 03:32:33,736 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand 12 states. [2018-12-03 03:32:33,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:32:33,848 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2018-12-03 03:32:33,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 03:32:33,849 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 19 [2018-12-03 03:32:33,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:32:33,849 INFO L225 Difference]: With dead ends: 66 [2018-12-03 03:32:33,849 INFO L226 Difference]: Without dead ends: 66 [2018-12-03 03:32:33,850 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2018-12-03 03:32:33,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-12-03 03:32:33,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 52. [2018-12-03 03:32:33,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-12-03 03:32:33,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2018-12-03 03:32:33,854 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 19 [2018-12-03 03:32:33,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:32:33,854 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2018-12-03 03:32:33,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-03 03:32:33,854 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2018-12-03 03:32:33,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-03 03:32:33,854 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:32:33,855 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:32:33,855 INFO L423 AbstractCegarLoop]: === Iteration 6 === [test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-03 03:32:33,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:32:33,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1797140914, now seen corresponding path program 1 times [2018-12-03 03:32:33,855 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:32:33,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:32:33,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:32:33,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:32:33,856 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:32:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:32:33,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-03 03:32:33,882 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:32:33,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 03:32:33,883 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:32:33,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 03:32:33,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 03:32:33,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 03:32:33,883 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand 4 states. [2018-12-03 03:32:33,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:32:33,910 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2018-12-03 03:32:33,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 03:32:33,910 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-12-03 03:32:33,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:32:33,911 INFO L225 Difference]: With dead ends: 51 [2018-12-03 03:32:33,911 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 03:32:33,911 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 03:32:33,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 03:32:33,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 03:32:33,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 03:32:33,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 03:32:33,912 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2018-12-03 03:32:33,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:32:33,912 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 03:32:33,912 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 03:32:33,912 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 03:32:33,912 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 03:32:33,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 03:32:33 BoogieIcfgContainer [2018-12-03 03:32:33,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 03:32:33,916 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 03:32:33,917 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 03:32:33,917 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 03:32:33,917 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:32:32" (3/4) ... [2018-12-03 03:32:33,920 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 03:32:33,924 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 03:32:33,924 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test_fun [2018-12-03 03:32:33,924 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 03:32:33,926 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-12-03 03:32:33,927 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-03 03:32:33,927 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-03 03:32:33,952 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0f63bb40-ff1c-431d-bdc4-d1f12ee37b0d/bin-2019/utaipan/witness.graphml [2018-12-03 03:32:33,952 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 03:32:33,952 INFO L168 Benchmark]: Toolchain (without parser) took 1978.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -113.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:32:33,953 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. [2018-12-03 03:32:33,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -140.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2018-12-03 03:32:33,954 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-03 03:32:33,954 INFO L168 Benchmark]: Boogie Preprocessor took 15.26 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:32:33,954 INFO L168 Benchmark]: RCFGBuilder took 171.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-12-03 03:32:33,954 INFO L168 Benchmark]: TraceAbstraction took 1450.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -2.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:32:33,954 INFO L168 Benchmark]: Witness Printer took 35.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 11.5 GB. [2018-12-03 03:32:33,956 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 286.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -140.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.26 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 171.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1450.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -2.9 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 35.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 555]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 555]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 553]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 553]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 551]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 553]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 551]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 553]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 558]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 47 locations, 15 error locations. SAFE Result, 1.4s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 161 SDtfs, 375 SDslu, 354 SDs, 0 SdLazy, 361 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 66 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=4, 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, 21 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 165 ConstructedInterpolants, 19 QuantifiedInterpolants, 20763 SizeOfPredicates, 11 NumberOfNonLiveVariables, 183 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 8/13 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...