./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes4_true-valid-memsafety.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_47f0764d-e85a-4279-8638-b1ee692df41d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_47f0764d-e85a-4279-8638-b1ee692df41d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_47f0764d-e85a-4279-8638-b1ee692df41d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_47f0764d-e85a-4279-8638-b1ee692df41d/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes4_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_47f0764d-e85a-4279-8638-b1ee692df41d/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_47f0764d-e85a-4279-8638-b1ee692df41d/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 87dcbb1d4539995e5aba39e6053775ca0fac811e .................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 12:04:05,104 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:04:05,105 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:04:05,113 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:04:05,113 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:04:05,113 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:04:05,114 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:04:05,115 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:04:05,116 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:04:05,117 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:04:05,117 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:04:05,118 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:04:05,118 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:04:05,119 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:04:05,120 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:04:05,120 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:04:05,121 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:04:05,122 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:04:05,123 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:04:05,124 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:04:05,125 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:04:05,126 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:04:05,127 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:04:05,128 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:04:05,128 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:04:05,128 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:04:05,129 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:04:05,130 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:04:05,130 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:04:05,131 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:04:05,131 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:04:05,132 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:04:05,132 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:04:05,132 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:04:05,132 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:04:05,133 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:04:05,133 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_47f0764d-e85a-4279-8638-b1ee692df41d/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-11-10 12:04:05,143 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:04:05,144 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:04:05,144 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:04:05,144 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 12:04:05,144 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 12:04:05,144 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 12:04:05,144 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 12:04:05,144 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 12:04:05,145 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 12:04:05,145 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 12:04:05,145 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 12:04:05,145 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 12:04:05,145 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 12:04:05,145 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:04:05,145 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:04:05,146 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 12:04:05,146 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:04:05,146 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:04:05,146 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:04:05,146 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-10 12:04:05,147 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-10 12:04:05,147 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-10 12:04:05,147 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:04:05,147 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:04:05,148 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:04:05,148 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:04:05,148 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:04:05,148 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:04:05,148 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:04:05,148 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:04:05,148 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:04:05,149 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 12:04:05,149 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:04:05,149 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 12:04:05,149 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_47f0764d-e85a-4279-8638-b1ee692df41d/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 -> 87dcbb1d4539995e5aba39e6053775ca0fac811e [2018-11-10 12:04:05,173 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:04:05,182 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:04:05,185 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:04:05,186 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:04:05,186 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:04:05,187 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_47f0764d-e85a-4279-8638-b1ee692df41d/bin-2019/utaipan/../../sv-benchmarks/c/memsafety-ext3/scopes4_true-valid-memsafety.c [2018-11-10 12:04:05,231 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_47f0764d-e85a-4279-8638-b1ee692df41d/bin-2019/utaipan/data/56e038870/de66a8749f7641ca8ec77f74200f6434/FLAGf1852b305 [2018-11-10 12:04:05,631 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:04:05,631 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_47f0764d-e85a-4279-8638-b1ee692df41d/sv-benchmarks/c/memsafety-ext3/scopes4_true-valid-memsafety.c [2018-11-10 12:04:05,635 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_47f0764d-e85a-4279-8638-b1ee692df41d/bin-2019/utaipan/data/56e038870/de66a8749f7641ca8ec77f74200f6434/FLAGf1852b305 [2018-11-10 12:04:05,645 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_47f0764d-e85a-4279-8638-b1ee692df41d/bin-2019/utaipan/data/56e038870/de66a8749f7641ca8ec77f74200f6434 [2018-11-10 12:04:05,647 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:04:05,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 12:04:05,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:04:05,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:04:05,652 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:04:05,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:04:05" (1/1) ... [2018-11-10 12:04:05,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ca410a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:05, skipping insertion in model container [2018-11-10 12:04:05,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:04:05" (1/1) ... [2018-11-10 12:04:05,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:04:05,674 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:04:05,784 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:04:05,824 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:04:05,833 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:04:05,892 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:04:05,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:05 WrapperNode [2018-11-10 12:04:05,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:04:05,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 12:04:05,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 12:04:05,893 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 12:04:05,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:05" (1/1) ... [2018-11-10 12:04:05,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:05" (1/1) ... [2018-11-10 12:04:06,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 12:04:06,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:04:06,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:04:06,075 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:04:06,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:05" (1/1) ... [2018-11-10 12:04:06,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:05" (1/1) ... [2018-11-10 12:04:06,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:05" (1/1) ... [2018-11-10 12:04:06,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:05" (1/1) ... [2018-11-10 12:04:06,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:05" (1/1) ... [2018-11-10 12:04:06,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:05" (1/1) ... [2018-11-10 12:04:06,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:05" (1/1) ... [2018-11-10 12:04:06,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:04:06,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:04:06,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:04:06,167 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:04:06,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_47f0764d-e85a-4279-8638-b1ee692df41d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:04:06,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:04:06,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:04:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2018-11-10 12:04:06,204 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2018-11-10 12:04:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:04:06,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:04:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:04:06,204 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:04:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure foo2 [2018-11-10 12:04:06,204 INFO L138 BoogieDeclarations]: Found implementation of procedure foo2 [2018-11-10 12:04:26,049 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:04:26,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:04:26 BoogieIcfgContainer [2018-11-10 12:04:26,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:04:26,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:04:26,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:04:26,052 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:04:26,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:04:05" (1/3) ... [2018-11-10 12:04:26,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b588c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:04:26, skipping insertion in model container [2018-11-10 12:04:26,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:05" (2/3) ... [2018-11-10 12:04:26,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b588c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:04:26, skipping insertion in model container [2018-11-10 12:04:26,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:04:26" (3/3) ... [2018-11-10 12:04:26,055 INFO L112 eAbstractionObserver]: Analyzing ICFG scopes4_true-valid-memsafety.c [2018-11-10 12:04:26,060 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:04:26,068 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-11-10 12:04:26,082 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-11-10 12:04:26,104 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:04:26,104 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-10 12:04:26,104 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:04:26,104 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:04:26,105 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:04:26,105 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:04:26,105 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:04:26,105 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:04:26,116 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-11-10 12:04:26,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 12:04:26,124 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:04:26,124 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:04:26,126 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, foo2Err0ASSERT_VIOLATIONMEMORY_DEREFERENCE, foo2Err1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 12:04:26,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:04:26,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1002352148, now seen corresponding path program 1 times [2018-11-10 12:04:26,133 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:04:26,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:04:26,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:04:26,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:04:26,172 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:04:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:04:26,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:04:26,851 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:04:26,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 12:04:26,852 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:04:26,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 12:04:26,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 12:04:26,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 12:04:26,870 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 4 states. [2018-11-10 12:04:28,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:04:28,964 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2018-11-10 12:04:28,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 12:04:28,965 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-10 12:04:28,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:04:28,971 INFO L225 Difference]: With dead ends: 25 [2018-11-10 12:04:28,971 INFO L226 Difference]: Without dead ends: 21 [2018-11-10 12:04:28,972 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 12:04:28,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-10 12:04:28,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-10 12:04:28,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-10 12:04:28,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2018-11-10 12:04:28,995 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 9 [2018-11-10 12:04:28,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:04:28,995 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2018-11-10 12:04:28,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 12:04:28,995 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2018-11-10 12:04:28,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 12:04:28,996 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:04:28,996 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:04:28,996 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, foo2Err0ASSERT_VIOLATIONMEMORY_DEREFERENCE, foo2Err1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 12:04:28,997 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:04:28,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1008145566, now seen corresponding path program 1 times [2018-11-10 12:04:28,997 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:04:28,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:04:28,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:04:28,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:04:28,998 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:04:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:04:29,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:04:29,351 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:04:29,351 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 12:04:29,352 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:04:29,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 12:04:29,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 12:04:29,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 12:04:29,353 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 4 states. [2018-11-10 12:04:31,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:04:31,442 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2018-11-10 12:04:31,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 12:04:31,442 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-10 12:04:31,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:04:31,442 INFO L225 Difference]: With dead ends: 20 [2018-11-10 12:04:31,442 INFO L226 Difference]: Without dead ends: 20 [2018-11-10 12:04:31,443 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 12:04:31,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-10 12:04:31,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-10 12:04:31,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-10 12:04:31,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2018-11-10 12:04:31,446 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 10 [2018-11-10 12:04:31,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:04:31,446 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2018-11-10 12:04:31,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 12:04:31,446 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2018-11-10 12:04:31,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 12:04:31,447 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:04:31,447 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:04:31,447 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, foo2Err0ASSERT_VIOLATIONMEMORY_DEREFERENCE, foo2Err1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 12:04:31,447 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:04:31,447 INFO L82 PathProgramCache]: Analyzing trace with hash -424402148, now seen corresponding path program 1 times [2018-11-10 12:04:31,447 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:04:31,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:04:31,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:04:31,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:04:31,448 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:04:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:04:31,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:04:31,807 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:04:31,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 12:04:31,807 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:04:31,807 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 12:04:31,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 12:04:31,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-11-10 12:04:31,808 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 9 states. [2018-11-10 12:04:43,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:04:43,916 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2018-11-10 12:04:43,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 12:04:43,917 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2018-11-10 12:04:43,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:04:43,918 INFO L225 Difference]: With dead ends: 19 [2018-11-10 12:04:43,918 INFO L226 Difference]: Without dead ends: 19 [2018-11-10 12:04:43,918 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-11-10 12:04:43,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-10 12:04:43,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-10 12:04:43,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-10 12:04:43,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2018-11-10 12:04:43,921 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 17 [2018-11-10 12:04:43,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:04:43,921 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2018-11-10 12:04:43,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 12:04:43,921 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2018-11-10 12:04:43,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 12:04:43,922 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:04:43,922 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:04:43,922 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, foo2Err0ASSERT_VIOLATIONMEMORY_DEREFERENCE, foo2Err1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 12:04:43,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:04:43,922 INFO L82 PathProgramCache]: Analyzing trace with hash -271564657, now seen corresponding path program 1 times [2018-11-10 12:04:43,922 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:04:43,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:04:43,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:04:43,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:04:43,923 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:04:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:04:44,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:04:44,429 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:04:44,429 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 12:04:44,429 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:04:44,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 12:04:44,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 12:04:44,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-10 12:04:44,430 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 8 states. [2018-11-10 12:04:54,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:04:54,608 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-11-10 12:04:54,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 12:04:54,609 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-11-10 12:04:54,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:04:54,609 INFO L225 Difference]: With dead ends: 18 [2018-11-10 12:04:54,610 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 12:04:54,611 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-10 12:04:54,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 12:04:54,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 12:04:54,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 12:04:54,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 12:04:54,611 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-11-10 12:04:54,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:04:54,612 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 12:04:54,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 12:04:54,612 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 12:04:54,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 12:04:54,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:04:54 BoogieIcfgContainer [2018-11-10 12:04:54,618 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:04:54,619 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:04:54,619 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:04:54,619 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:04:54,619 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:04:26" (3/4) ... [2018-11-10 12:04:54,623 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 12:04:54,629 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 12:04:54,629 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2018-11-10 12:04:54,629 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 12:04:54,630 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure foo2 [2018-11-10 12:04:54,669 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2076 nodes and edges [2018-11-10 12:04:54,673 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1037 nodes and edges [2018-11-10 12:04:54,675 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1028 nodes and edges [2018-11-10 12:04:54,678 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 12:04:54,824 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_47f0764d-e85a-4279-8638-b1ee692df41d/bin-2019/utaipan/witness.graphml [2018-11-10 12:04:54,824 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:04:54,825 INFO L168 Benchmark]: Toolchain (without parser) took 49177.65 ms. Allocated memory was 1.0 GB in the beginning and 2.8 GB in the end (delta: 1.7 GB). Free memory was 960.3 MB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 537.3 MB. Max. memory is 11.5 GB. [2018-11-10 12:04:54,826 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:04:54,826 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.61 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 937.7 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:04:54,826 INFO L168 Benchmark]: Boogie Procedure Inliner took 181.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 937.7 MB in the beginning and 1.1 GB in the end (delta: -179.7 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. [2018-11-10 12:04:54,827 INFO L168 Benchmark]: Boogie Preprocessor took 92.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-10 12:04:54,827 INFO L168 Benchmark]: RCFGBuilder took 19882.75 ms. Allocated memory was 1.2 GB in the beginning and 2.7 GB in the end (delta: 1.6 GB). Free memory was 1.1 GB in the beginning and 905.7 MB in the end (delta: 190.3 MB). Peak memory consumption was 1.8 GB. Max. memory is 11.5 GB. [2018-11-10 12:04:54,827 INFO L168 Benchmark]: TraceAbstraction took 28568.09 ms. Allocated memory was 2.7 GB in the beginning and 2.8 GB in the end (delta: 16.8 MB). Free memory was 905.7 MB in the beginning and 2.2 GB in the end (delta: -1.3 GB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:04:54,827 INFO L168 Benchmark]: Witness Printer took 205.48 ms. Allocated memory is still 2.8 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 37.5 MB). Peak memory consumption was 37.5 MB. Max. memory is 11.5 GB. [2018-11-10 12:04:54,829 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 244.61 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 937.7 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 181.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 937.7 MB in the beginning and 1.1 GB in the end (delta: -179.7 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 92.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 19882.75 ms. Allocated memory was 1.2 GB in the beginning and 2.7 GB in the end (delta: 1.6 GB). Free memory was 1.1 GB in the beginning and 905.7 MB in the end (delta: 190.3 MB). Peak memory consumption was 1.8 GB. Max. memory is 11.5 GB. * TraceAbstraction took 28568.09 ms. Allocated memory was 2.7 GB in the beginning and 2.8 GB in the end (delta: 16.8 MB). Free memory was 905.7 MB in the beginning and 2.2 GB in the end (delta: -1.3 GB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 205.48 ms. Allocated memory is still 2.8 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 37.5 MB). Peak memory consumption was 37.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 16]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: 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 5 procedures, 27 locations, 5 error locations. SAFE Result, 28.5s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 26.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 SDtfs, 48 SDslu, 92 SDs, 0 SdLazy, 127 SolverSat, 2 SolverUnsat, 13 SolverUnknown, 0 SolverNotchecked, 26.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 4449 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...