./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0158_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_127db271-cf7b-458c-a3ce-cee31d1181ae/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_127db271-cf7b-458c-a3ce-cee31d1181ae/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_127db271-cf7b-458c-a3ce-cee31d1181ae/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_127db271-cf7b-458c-a3ce-cee31d1181ae/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_127db271-cf7b-458c-a3ce-cee31d1181ae/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_127db271-cf7b-458c-a3ce-cee31d1181ae/bin/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 aa779df617b83bdc7632b93a3c3bc0bbfee71559 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:05:18,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:05:18,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:05:19,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:05:19,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:05:19,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:05:19,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:05:19,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:05:19,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:05:19,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:05:19,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:05:19,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:05:19,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:05:19,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:05:19,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:05:19,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:05:19,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:05:19,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:05:19,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:05:19,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:05:19,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:05:19,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:05:19,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:05:19,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:05:19,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:05:19,128 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:05:19,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:05:19,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:05:19,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:05:19,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:05:19,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:05:19,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:05:19,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:05:19,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:05:19,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:05:19,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:05:19,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:05:19,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:05:19,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:05:19,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:05:19,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:05:19,138 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_127db271-cf7b-458c-a3ce-cee31d1181ae/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-11-22 13:05:19,167 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:05:19,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:05:19,168 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:05:19,168 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:05:19,169 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:05:19,169 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:05:19,169 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:05:19,169 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:05:19,169 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:05:19,170 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:05:19,171 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:05:19,171 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:05:19,171 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:05:19,171 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:05:19,171 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:05:19,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-22 13:05:19,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-22 13:05:19,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:05:19,173 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:05:19,173 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-22 13:05:19,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:05:19,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:05:19,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:05:19,174 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-22 13:05:19,174 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-22 13:05:19,174 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-22 13:05:19,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:05:19,174 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:05:19,175 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:05:19,175 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:05:19,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:05:19,175 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:05:19,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:05:19,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:05:19,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:05:19,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:05:19,176 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:05:19,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:05:19,177 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:05:19,177 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:05:19,177 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_127db271-cf7b-458c-a3ce-cee31d1181ae/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_127db271-cf7b-458c-a3ce-cee31d1181ae/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa779df617b83bdc7632b93a3c3bc0bbfee71559 [2020-11-22 13:05:19,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:05:19,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:05:19,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:05:19,478 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:05:19,480 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:05:19,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_127db271-cf7b-458c-a3ce-cee31d1181ae/bin/utaipan/../../sv-benchmarks/c/list-ext-properties/test-0158_1-1.i [2020-11-22 13:05:19,561 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_127db271-cf7b-458c-a3ce-cee31d1181ae/bin/utaipan/data/e24bbf310/584bc6aba7cd4d22b202082dad807e22/FLAG9e313c138 [2020-11-22 13:05:20,170 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:05:20,171 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_127db271-cf7b-458c-a3ce-cee31d1181ae/sv-benchmarks/c/list-ext-properties/test-0158_1-1.i [2020-11-22 13:05:20,187 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_127db271-cf7b-458c-a3ce-cee31d1181ae/bin/utaipan/data/e24bbf310/584bc6aba7cd4d22b202082dad807e22/FLAG9e313c138 [2020-11-22 13:05:20,469 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_127db271-cf7b-458c-a3ce-cee31d1181ae/bin/utaipan/data/e24bbf310/584bc6aba7cd4d22b202082dad807e22 [2020-11-22 13:05:20,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:05:20,474 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:05:20,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:20,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:05:20,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:05:20,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:20" (1/1) ... [2020-11-22 13:05:20,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77d1a633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:20, skipping insertion in model container [2020-11-22 13:05:20,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:20" (1/1) ... [2020-11-22 13:05:20,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:05:20,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:05:20,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:20,886 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:05:20,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:21,037 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:05:21,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:21 WrapperNode [2020-11-22 13:05:21,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:21,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:21,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:05:21,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:05:21,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:21" (1/1) ... [2020-11-22 13:05:21,067 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:21" (1/1) ... [2020-11-22 13:05:21,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:21,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:05:21,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:05:21,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:05:21,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:21" (1/1) ... [2020-11-22 13:05:21,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:21" (1/1) ... [2020-11-22 13:05:21,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:21" (1/1) ... [2020-11-22 13:05:21,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:21" (1/1) ... [2020-11-22 13:05:21,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:21" (1/1) ... [2020-11-22 13:05:21,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:21" (1/1) ... [2020-11-22 13:05:21,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:21" (1/1) ... [2020-11-22 13:05:21,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:05:21,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:05:21,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:05:21,123 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:05:21,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_127db271-cf7b-458c-a3ce-cee31d1181ae/bin/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 [2020-11-22 13:05:21,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-22 13:05:21,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 13:05:21,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-22 13:05:21,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-22 13:05:21,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:05:21,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-22 13:05:21,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:05:21,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:05:21,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:05:21,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:05:21,782 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:05:21,782 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-22 13:05:21,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:21 BoogieIcfgContainer [2020-11-22 13:05:21,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:05:21,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:05:21,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:05:21,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:05:21,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:05:20" (1/3) ... [2020-11-22 13:05:21,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6106a9c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:21, skipping insertion in model container [2020-11-22 13:05:21,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:21" (2/3) ... [2020-11-22 13:05:21,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6106a9c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:21, skipping insertion in model container [2020-11-22 13:05:21,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:21" (3/3) ... [2020-11-22 13:05:21,795 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-1.i [2020-11-22 13:05:21,805 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:05:21,810 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-11-22 13:05:21,821 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-11-22 13:05:21,851 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:05:21,851 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-22 13:05:21,851 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:05:21,851 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:05:21,851 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:05:21,851 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:05:21,851 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:05:21,852 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:05:21,868 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-11-22 13:05:21,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-22 13:05:21,876 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:21,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-11-22 13:05:21,878 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-22 13:05:21,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:21,884 INFO L82 PathProgramCache]: Analyzing trace with hash 2329, now seen corresponding path program 1 times [2020-11-22 13:05:21,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:05:21,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659273522] [2020-11-22 13:05:21,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:05:22,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:22,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:22,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659273522] [2020-11-22 13:05:22,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:22,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-22 13:05:22,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635632566] [2020-11-22 13:05:22,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:05:22,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:05:22,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:05:22,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:05:22,134 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2020-11-22 13:05:22,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:22,204 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2020-11-22 13:05:22,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:05:22,206 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2020-11-22 13:05:22,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:22,219 INFO L225 Difference]: With dead ends: 24 [2020-11-22 13:05:22,219 INFO L226 Difference]: Without dead ends: 23 [2020-11-22 13:05:22,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:05:22,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-22 13:05:22,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-11-22 13:05:22,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-22 13:05:22,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-11-22 13:05:22,254 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 2 [2020-11-22 13:05:22,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:22,255 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-11-22 13:05:22,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:05:22,255 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-11-22 13:05:22,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-22 13:05:22,256 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:22,256 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-11-22 13:05:22,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:05:22,257 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-22 13:05:22,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:22,260 INFO L82 PathProgramCache]: Analyzing trace with hash 2330, now seen corresponding path program 1 times [2020-11-22 13:05:22,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:05:22,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247980812] [2020-11-22 13:05:22,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:05:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:22,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:22,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247980812] [2020-11-22 13:05:22,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:22,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-22 13:05:22,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196485850] [2020-11-22 13:05:22,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:05:22,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:05:22,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:05:22,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:05:22,348 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 3 states. [2020-11-22 13:05:22,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:22,384 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2020-11-22 13:05:22,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:05:22,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2020-11-22 13:05:22,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:22,385 INFO L225 Difference]: With dead ends: 17 [2020-11-22 13:05:22,385 INFO L226 Difference]: Without dead ends: 17 [2020-11-22 13:05:22,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:05:22,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-22 13:05:22,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-22 13:05:22,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-22 13:05:22,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-11-22 13:05:22,389 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 2 [2020-11-22 13:05:22,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:22,390 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-11-22 13:05:22,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:05:22,390 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-11-22 13:05:22,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:05:22,390 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:22,390 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:22,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 13:05:22,391 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-22 13:05:22,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:22,391 INFO L82 PathProgramCache]: Analyzing trace with hash 4745073, now seen corresponding path program 1 times [2020-11-22 13:05:22,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:05:22,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557826583] [2020-11-22 13:05:22,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:05:22,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:22,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:22,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557826583] [2020-11-22 13:05:22,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:22,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:05:22,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575320829] [2020-11-22 13:05:22,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:05:22,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:05:22,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:05:22,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:05:22,518 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 5 states. [2020-11-22 13:05:22,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:22,611 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-11-22 13:05:22,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:05:22,612 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-11-22 13:05:22,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:22,612 INFO L225 Difference]: With dead ends: 16 [2020-11-22 13:05:22,612 INFO L226 Difference]: Without dead ends: 16 [2020-11-22 13:05:22,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:05:22,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-22 13:05:22,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-22 13:05:22,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-22 13:05:22,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-11-22 13:05:22,616 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 8 [2020-11-22 13:05:22,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:22,616 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-11-22 13:05:22,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:05:22,616 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-11-22 13:05:22,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-22 13:05:22,617 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:22,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:22,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-22 13:05:22,617 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-22 13:05:22,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:22,618 INFO L82 PathProgramCache]: Analyzing trace with hash 147097330, now seen corresponding path program 1 times [2020-11-22 13:05:22,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:05:22,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319453929] [2020-11-22 13:05:22,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:05:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:22,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:22,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319453929] [2020-11-22 13:05:22,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:22,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:05:22,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640187411] [2020-11-22 13:05:22,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:05:22,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:05:22,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:05:22,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:05:22,728 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 5 states. [2020-11-22 13:05:22,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:22,814 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2020-11-22 13:05:22,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:05:22,815 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-22 13:05:22,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:22,816 INFO L225 Difference]: With dead ends: 15 [2020-11-22 13:05:22,816 INFO L226 Difference]: Without dead ends: 15 [2020-11-22 13:05:22,816 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:05:22,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-22 13:05:22,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-22 13:05:22,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-22 13:05:22,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-11-22 13:05:22,819 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 9 [2020-11-22 13:05:22,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:22,819 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-11-22 13:05:22,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:05:22,820 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-11-22 13:05:22,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 13:05:22,820 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:22,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:22,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-22 13:05:22,821 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-22 13:05:22,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:22,821 INFO L82 PathProgramCache]: Analyzing trace with hash 265050003, now seen corresponding path program 1 times [2020-11-22 13:05:22,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:05:22,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010737610] [2020-11-22 13:05:22,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:05:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:22,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:22,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010737610] [2020-11-22 13:05:22,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:22,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:05:22,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028688401] [2020-11-22 13:05:22,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:05:22,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:05:22,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:05:22,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:05:22,919 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 5 states. [2020-11-22 13:05:23,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:23,003 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2020-11-22 13:05:23,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:05:23,004 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-22 13:05:23,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:23,005 INFO L225 Difference]: With dead ends: 14 [2020-11-22 13:05:23,005 INFO L226 Difference]: Without dead ends: 14 [2020-11-22 13:05:23,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:05:23,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-11-22 13:05:23,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-11-22 13:05:23,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-11-22 13:05:23,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2020-11-22 13:05:23,008 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10 [2020-11-22 13:05:23,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:23,008 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2020-11-22 13:05:23,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:05:23,008 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2020-11-22 13:05:23,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-22 13:05:23,009 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:23,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:23,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-22 13:05:23,009 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-22 13:05:23,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:23,010 INFO L82 PathProgramCache]: Analyzing trace with hash -373384427, now seen corresponding path program 1 times [2020-11-22 13:05:23,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:05:23,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769628821] [2020-11-22 13:05:23,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:05:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:23,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:23,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769628821] [2020-11-22 13:05:23,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:23,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-22 13:05:23,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203925336] [2020-11-22 13:05:23,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:05:23,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:05:23,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:05:23,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:05:23,236 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 6 states. [2020-11-22 13:05:23,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:23,353 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2020-11-22 13:05:23,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:05:23,354 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-11-22 13:05:23,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:23,354 INFO L225 Difference]: With dead ends: 13 [2020-11-22 13:05:23,354 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:05:23,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:05:23,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:05:23,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:05:23,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:05:23,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:05:23,355 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-11-22 13:05:23,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:23,356 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:05:23,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:05:23,356 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:05:23,356 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:05:23,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-22 13:05:23,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:05:23 BoogieIcfgContainer [2020-11-22 13:05:23,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:05:23,361 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:05:23,361 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:05:23,361 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:05:23,362 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:21" (3/4) ... [2020-11-22 13:05:23,365 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:05:23,374 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-22 13:05:23,375 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-22 13:05:23,375 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-22 13:05:23,375 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:05:23,413 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_127db271-cf7b-458c-a3ce-cee31d1181ae/bin/utaipan/witness.graphml [2020-11-22 13:05:23,413 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:05:23,415 INFO L168 Benchmark]: Toolchain (without parser) took 2939.86 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 63.6 MB in the beginning and 87.4 MB in the end (delta: -23.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:05:23,415 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 73.4 MB. Free memory was 47.7 MB in the beginning and 47.7 MB in the end (delta: 27.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:05:23,416 INFO L168 Benchmark]: CACSL2BoogieTranslator took 560.36 ms. Allocated memory is still 96.5 MB. Free memory was 63.4 MB in the beginning and 62.7 MB in the end (delta: 714.5 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:23,416 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.06 ms. Allocated memory is still 96.5 MB. Free memory was 62.7 MB in the beginning and 60.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:23,417 INFO L168 Benchmark]: Boogie Preprocessor took 36.48 ms. Allocated memory is still 96.5 MB. Free memory was 60.7 MB in the beginning and 59.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:23,417 INFO L168 Benchmark]: RCFGBuilder took 662.24 ms. Allocated memory is still 96.5 MB. Free memory was 59.5 MB in the beginning and 39.1 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:23,418 INFO L168 Benchmark]: TraceAbstraction took 1574.32 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 38.6 MB in the beginning and 89.5 MB in the end (delta: -51.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:05:23,419 INFO L168 Benchmark]: Witness Printer took 52.12 ms. Allocated memory is still 117.4 MB. Free memory was 89.5 MB in the beginning and 87.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:23,422 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 73.4 MB. Free memory was 47.7 MB in the beginning and 47.7 MB in the end (delta: 27.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 560.36 ms. Allocated memory is still 96.5 MB. Free memory was 63.4 MB in the beginning and 62.7 MB in the end (delta: 714.5 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.06 ms. Allocated memory is still 96.5 MB. Free memory was 62.7 MB in the beginning and 60.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.48 ms. Allocated memory is still 96.5 MB. Free memory was 60.7 MB in the beginning and 59.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 662.24 ms. Allocated memory is still 96.5 MB. Free memory was 59.5 MB in the beginning and 39.1 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1574.32 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 38.6 MB in the beginning and 89.5 MB in the end (delta: -51.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 52.12 ms. Allocated memory is still 117.4 MB. Free memory was 89.5 MB in the beginning and 87.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 534]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 534]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 538]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 536]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 536]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 538]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 541]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 541]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 106 SDslu, 26 SDs, 0 SdLazy, 107 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 5036 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...