./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fa4ebb92-bc92-4998-8c96-d075c236542e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fa4ebb92-bc92-4998-8c96-d075c236542e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fa4ebb92-bc92-4998-8c96-d075c236542e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fa4ebb92-bc92-4998-8c96-d075c236542e/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_fa4ebb92-bc92-4998-8c96-d075c236542e/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fa4ebb92-bc92-4998-8c96-d075c236542e/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 0.1.23-635dfa2 [2018-12-09 19:36:43,849 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:36:43,850 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:36:43,856 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:36:43,856 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:36:43,857 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:36:43,857 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:36:43,858 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:36:43,859 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:36:43,860 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:36:43,860 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:36:43,860 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:36:43,861 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:36:43,861 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:36:43,862 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:36:43,862 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:36:43,863 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:36:43,864 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:36:43,865 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:36:43,865 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:36:43,866 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:36:43,867 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:36:43,868 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:36:43,868 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:36:43,868 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:36:43,869 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:36:43,869 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:36:43,870 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:36:43,870 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:36:43,871 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:36:43,871 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:36:43,871 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:36:43,871 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:36:43,871 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:36:43,872 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:36:43,872 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:36:43,873 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fa4ebb92-bc92-4998-8c96-d075c236542e/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-12-09 19:36:43,881 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:36:43,881 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:36:43,881 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:36:43,881 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:36:43,882 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:36:43,882 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:36:43,882 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:36:43,882 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:36:43,882 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:36:43,882 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:36:43,882 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:36:43,882 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:36:43,882 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:36:43,883 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 19:36:43,883 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 19:36:43,883 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:36:43,883 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:36:43,883 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 19:36:43,883 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:36:43,884 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:36:43,884 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:36:43,884 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 19:36:43,884 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 19:36:43,884 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 19:36:43,884 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:36:43,884 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:36:43,884 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:36:43,884 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:36:43,884 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:36:43,885 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:36:43,885 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:36:43,885 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:36:43,885 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:36:43,885 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:36:43,885 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:36:43,885 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:36:43,885 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_fa4ebb92-bc92-4998-8c96-d075c236542e/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 [2018-12-09 19:36:43,902 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:36:43,909 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:36:43,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:36:43,912 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:36:43,912 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:36:43,912 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fa4ebb92-bc92-4998-8c96-d075c236542e/bin-2019/utaipan/../../sv-benchmarks/c/memsafety-ext3/scopes4_true-valid-memsafety.c [2018-12-09 19:36:43,947 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa4ebb92-bc92-4998-8c96-d075c236542e/bin-2019/utaipan/data/474a3c72a/0db0b8eaa1774ac781a6662b9f633ebd/FLAGf74d1b87e [2018-12-09 19:36:44,269 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:36:44,269 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fa4ebb92-bc92-4998-8c96-d075c236542e/sv-benchmarks/c/memsafety-ext3/scopes4_true-valid-memsafety.c [2018-12-09 19:36:44,273 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa4ebb92-bc92-4998-8c96-d075c236542e/bin-2019/utaipan/data/474a3c72a/0db0b8eaa1774ac781a6662b9f633ebd/FLAGf74d1b87e [2018-12-09 19:36:44,280 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fa4ebb92-bc92-4998-8c96-d075c236542e/bin-2019/utaipan/data/474a3c72a/0db0b8eaa1774ac781a6662b9f633ebd [2018-12-09 19:36:44,282 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:36:44,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:36:44,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:36:44,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:36:44,285 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:36:44,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:36:44" (1/1) ... [2018-12-09 19:36:44,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59facd15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:44, skipping insertion in model container [2018-12-09 19:36:44,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:36:44" (1/1) ... [2018-12-09 19:36:44,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:36:44,304 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:36:44,392 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:36:44,432 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:36:44,441 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:36:44,492 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:36:44,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:44 WrapperNode [2018-12-09 19:36:44,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:36:44,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:36:44,493 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:36:44,494 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:36:44,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:44" (1/1) ... [2018-12-09 19:36:44,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:44" (1/1) ... [2018-12-09 19:36:44,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:36:44,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:36:44,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:36:44,557 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:36:44,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:44" (1/1) ... [2018-12-09 19:36:44,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:44" (1/1) ... [2018-12-09 19:36:44,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:44" (1/1) ... [2018-12-09 19:36:44,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:44" (1/1) ... [2018-12-09 19:36:44,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:44" (1/1) ... [2018-12-09 19:36:44,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:44" (1/1) ... [2018-12-09 19:36:44,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:44" (1/1) ... [2018-12-09 19:36:44,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:36:44,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:36:44,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:36:44,604 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:36:44,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa4ebb92-bc92-4998-8c96-d075c236542e/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:36:44,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 19:36:44,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:36:44,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:36:44,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:36:44,637 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2018-12-09 19:36:44,637 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2018-12-09 19:36:44,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:36:44,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:36:44,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 19:36:44,637 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:36:44,637 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:36:44,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 19:36:44,638 INFO L130 BoogieDeclarations]: Found specification of procedure foo2 [2018-12-09 19:36:44,638 INFO L138 BoogieDeclarations]: Found implementation of procedure foo2 [2018-12-09 19:36:45,044 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:36:45,045 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 19:36:45,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:36:45 BoogieIcfgContainer [2018-12-09 19:36:45,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:36:45,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:36:45,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:36:45,047 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:36:45,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:36:44" (1/3) ... [2018-12-09 19:36:45,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731c10c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:36:45, skipping insertion in model container [2018-12-09 19:36:45,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:44" (2/3) ... [2018-12-09 19:36:45,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731c10c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:36:45, skipping insertion in model container [2018-12-09 19:36:45,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:36:45" (3/3) ... [2018-12-09 19:36:45,050 INFO L112 eAbstractionObserver]: Analyzing ICFG scopes4_true-valid-memsafety.c [2018-12-09 19:36:45,056 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:36:45,061 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-12-09 19:36:45,071 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-12-09 19:36:45,087 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:36:45,087 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-09 19:36:45,087 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:36:45,087 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:36:45,087 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:36:45,087 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:36:45,087 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:36:45,087 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:36:45,096 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-12-09 19:36:45,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 19:36:45,101 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:36:45,102 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:36:45,103 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, foo2Err1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION]=== [2018-12-09 19:36:45,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:36:45,106 INFO L82 PathProgramCache]: Analyzing trace with hash -325957377, now seen corresponding path program 1 times [2018-12-09 19:36:45,108 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:36:45,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:36:45,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:36:45,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:36:45,138 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:36:45,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:36:45,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:36:45,347 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:36:45,348 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:36:45,348 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:36:45,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:36:45,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:36:45,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:36:45,362 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2018-12-09 19:36:45,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:36:45,384 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-12-09 19:36:45,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:36:45,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-09 19:36:45,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:36:45,390 INFO L225 Difference]: With dead ends: 24 [2018-12-09 19:36:45,391 INFO L226 Difference]: Without dead ends: 19 [2018-12-09 19:36:45,392 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:36:45,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-12-09 19:36:45,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-12-09 19:36:45,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-12-09 19:36:45,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2018-12-09 19:36:45,412 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 8 [2018-12-09 19:36:45,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:36:45,413 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2018-12-09 19:36:45,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:36:45,413 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2018-12-09 19:36:45,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 19:36:45,413 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:36:45,413 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:36:45,413 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, foo2Err1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION]=== [2018-12-09 19:36:45,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:36:45,414 INFO L82 PathProgramCache]: Analyzing trace with hash -325957376, now seen corresponding path program 1 times [2018-12-09 19:36:45,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:36:45,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:36:45,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:36:45,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:36:45,415 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:36:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:36:45,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:36:45,502 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:36:45,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:36:45,502 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:36:45,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:36:45,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:36:45,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:36:45,504 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 3 states. [2018-12-09 19:36:45,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:36:45,511 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-12-09 19:36:45,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:36:45,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-09 19:36:45,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:36:45,512 INFO L225 Difference]: With dead ends: 18 [2018-12-09 19:36:45,513 INFO L226 Difference]: Without dead ends: 18 [2018-12-09 19:36:45,513 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:36:45,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-12-09 19:36:45,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-12-09 19:36:45,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-09 19:36:45,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2018-12-09 19:36:45,516 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 8 [2018-12-09 19:36:45,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:36:45,516 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2018-12-09 19:36:45,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:36:45,517 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2018-12-09 19:36:45,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 19:36:45,517 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:36:45,517 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:36:45,517 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, foo2Err1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION]=== [2018-12-09 19:36:45,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:36:45,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1826979706, now seen corresponding path program 1 times [2018-12-09 19:36:45,518 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:36:45,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:36:45,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:36:45,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:36:45,519 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:36:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:36:45,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:36:45,645 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:36:45,645 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 19:36:45,645 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:36:45,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 19:36:45,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 19:36:45,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-12-09 19:36:45,646 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 8 states. [2018-12-09 19:36:45,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:36:45,902 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2018-12-09 19:36:45,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 19:36:45,902 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-12-09 19:36:45,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:36:45,902 INFO L225 Difference]: With dead ends: 17 [2018-12-09 19:36:45,902 INFO L226 Difference]: Without dead ends: 17 [2018-12-09 19:36:45,903 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-12-09 19:36:45,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-12-09 19:36:45,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-12-09 19:36:45,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-12-09 19:36:45,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2018-12-09 19:36:45,904 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 16 [2018-12-09 19:36:45,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:36:45,904 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2018-12-09 19:36:45,904 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 19:36:45,904 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2018-12-09 19:36:45,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 19:36:45,905 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:36:45,905 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:36:45,905 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, foo2Err1REQUIRES_VIOLATION, foo2Err0REQUIRES_VIOLATION]=== [2018-12-09 19:36:45,905 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:36:45,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1826979705, now seen corresponding path program 1 times [2018-12-09 19:36:45,905 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:36:45,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:36:45,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:36:45,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:36:45,906 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:36:45,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:36:46,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:36:46,012 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:36:46,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 19:36:46,012 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:36:46,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 19:36:46,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 19:36:46,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-12-09 19:36:46,013 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand 9 states. [2018-12-09 19:36:46,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:36:46,295 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2018-12-09 19:36:46,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 19:36:46,295 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2018-12-09 19:36:46,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:36:46,296 INFO L225 Difference]: With dead ends: 16 [2018-12-09 19:36:46,296 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 19:36:46,296 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2018-12-09 19:36:46,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 19:36:46,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 19:36:46,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 19:36:46,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 19:36:46,297 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-12-09 19:36:46,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:36:46,297 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 19:36:46,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 19:36:46,297 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 19:36:46,297 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 19:36:46,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:36:46 BoogieIcfgContainer [2018-12-09 19:36:46,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:36:46,301 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:36:46,301 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:36:46,301 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:36:46,301 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:36:45" (3/4) ... [2018-12-09 19:36:46,304 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 19:36:46,308 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 19:36:46,308 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2018-12-09 19:36:46,309 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 19:36:46,309 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure foo2 [2018-12-09 19:36:46,317 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 585 nodes and edges [2018-12-09 19:36:46,318 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 291 nodes and edges [2018-12-09 19:36:46,318 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 145 nodes and edges [2018-12-09 19:36:46,319 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 73 nodes and edges [2018-12-09 19:36:46,319 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2018-12-09 19:36:46,319 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-12-09 19:36:46,319 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-09 19:36:46,319 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-09 19:36:46,319 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 19:36:46,319 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 19:36:46,320 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 19:36:46,343 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fa4ebb92-bc92-4998-8c96-d075c236542e/bin-2019/utaipan/witness.graphml [2018-12-09 19:36:46,343 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:36:46,344 INFO L168 Benchmark]: Toolchain (without parser) took 2061.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 955.1 MB in the beginning and 1.0 GB in the end (delta: -51.1 MB). Peak memory consumption was 49.5 MB. Max. memory is 11.5 GB. [2018-12-09 19:36:46,345 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:36:46,345 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.64 ms. Allocated memory is still 1.0 GB. Free memory was 955.1 MB in the beginning and 932.5 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-12-09 19:36:46,345 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 932.5 MB in the beginning and 1.1 GB in the end (delta: -166.8 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:36:46,346 INFO L168 Benchmark]: Boogie Preprocessor took 46.58 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:36:46,346 INFO L168 Benchmark]: RCFGBuilder took 440.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 959.4 MB in the end (delta: 129.2 MB). Peak memory consumption was 129.2 MB. Max. memory is 11.5 GB. [2018-12-09 19:36:46,346 INFO L168 Benchmark]: TraceAbstraction took 1255.13 ms. Allocated memory is still 1.1 GB. Free memory was 959.4 MB in the beginning and 1.0 GB in the end (delta: -53.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:36:46,347 INFO L168 Benchmark]: Witness Printer took 42.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-12-09 19:36:46,349 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 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 209.64 ms. Allocated memory is still 1.0 GB. Free memory was 955.1 MB in the beginning and 932.5 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 63.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 932.5 MB in the beginning and 1.1 GB in the end (delta: -166.8 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.58 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 440.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 959.4 MB in the end (delta: 129.2 MB). Peak memory consumption was 129.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1255.13 ms. Allocated memory is still 1.1 GB. Free memory was 959.4 MB in the beginning and 1.0 GB in the end (delta: -53.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 42.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 5 error locations. SAFE Result, 1.2s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 54 SDtfs, 44 SDslu, 35 SDs, 0 SdLazy, 121 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 3593 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...