./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI --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 8fdeb5a608a809e67439a428636d313b7ceb3d25 ................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI --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 8fdeb5a608a809e67439a428636d313b7ceb3d25 .............................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:24:08,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:24:08,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:24:08,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:24:08,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:24:08,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:24:08,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:24:08,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:24:08,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:24:08,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:24:08,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:24:08,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:24:08,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:24:08,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:24:08,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:24:08,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:24:08,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:24:08,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:24:08,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:24:08,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:24:08,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:24:08,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:24:08,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:24:08,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:24:08,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:24:08,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:24:08,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:24:08,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:24:08,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:24:08,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:24:08,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:24:08,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:24:08,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:24:08,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:24:08,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:24:08,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:24:08,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:24:08,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:24:08,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:24:08,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:24:08,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:24:08,187 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-11 02:24:08,227 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:24:08,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:24:08,232 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:24:08,232 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:24:08,233 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:24:08,233 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:24:08,233 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:24:08,234 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:24:08,234 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:24:08,234 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:24:08,235 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:24:08,236 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:24:08,236 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:24:08,236 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:24:08,237 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:24:08,238 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:24:08,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:24:08,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:24:08,239 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:24:08,239 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:24:08,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:24:08,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:24:08,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:24:08,240 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:24:08,241 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:24:08,241 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 02:24:08,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:24:08,243 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:24:08,243 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:24:08,243 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:24:08,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:24:08,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:24:08,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:24:08,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:24:08,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:24:08,245 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:24:08,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:24:08,246 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:24:08,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:24:08,246 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_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fdeb5a608a809e67439a428636d313b7ceb3d25 [2021-10-11 02:24:08,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:24:08,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:24:08,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:24:08,606 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:24:08,607 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:24:08,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2021-10-11 02:24:08,686 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/data/888839f7c/1c0410d43a4a4519937d76439ae61377/FLAGaf71af5ab [2021-10-11 02:24:09,296 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:24:09,299 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2021-10-11 02:24:09,318 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/data/888839f7c/1c0410d43a4a4519937d76439ae61377/FLAGaf71af5ab [2021-10-11 02:24:09,594 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/data/888839f7c/1c0410d43a4a4519937d76439ae61377 [2021-10-11 02:24:09,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:24:09,597 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:24:09,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:09,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:24:09,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:24:09,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:09" (1/1) ... [2021-10-11 02:24:09,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@395c4506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:09, skipping insertion in model container [2021-10-11 02:24:09,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:09" (1/1) ... [2021-10-11 02:24:09,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:24:09,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:24:10,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:10,063 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:24:10,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:10,182 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:24:10,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10 WrapperNode [2021-10-11 02:24:10,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:10,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:10,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:24:10,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:24:10,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:10,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:24:10,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:24:10,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:24:10,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:24:10,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:24:10,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:24:10,271 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:24:10,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:24:10,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:24:10,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:24:10,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 02:24:10,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-11 02:24:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:24:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:24:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:24:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:24:10,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:24:10,662 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:24:10,662 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-11 02:24:10,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:10 BoogieIcfgContainer [2021-10-11 02:24:10,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:24:10,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:24:10,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:24:10,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:24:10,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:24:09" (1/3) ... [2021-10-11 02:24:10,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a354b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:10, skipping insertion in model container [2021-10-11 02:24:10,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10" (2/3) ... [2021-10-11 02:24:10,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a354b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:10, skipping insertion in model container [2021-10-11 02:24:10,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:10" (3/3) ... [2021-10-11 02:24:10,680 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2021-10-11 02:24:10,709 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:24:10,712 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2021-10-11 02:24:10,726 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-10-11 02:24:10,747 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:24:10,747 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 02:24:10,747 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:24:10,747 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:24:10,747 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:24:10,748 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:24:10,758 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:24:10,759 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:24:10,770 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2021-10-11 02:24:10,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-11 02:24:10,795 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:10,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2021-10-11 02:24:10,796 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:24:10,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:10,801 INFO L82 PathProgramCache]: Analyzing trace with hash 2081, now seen corresponding path program 1 times [2021-10-11 02:24:10,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:10,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664865124] [2021-10-11 02:24:10,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:10,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:10,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664865124] [2021-10-11 02:24:11,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:11,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:24:11,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567816961] [2021-10-11 02:24:11,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:24:11,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:11,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:24:11,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:11,021 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2021-10-11 02:24:11,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:11,096 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-10-11 02:24:11,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:24:11,099 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2021-10-11 02:24:11,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:11,107 INFO L225 Difference]: With dead ends: 17 [2021-10-11 02:24:11,107 INFO L226 Difference]: Without dead ends: 16 [2021-10-11 02:24:11,108 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 [2021-10-11 02:24:11,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-11 02:24:11,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-11 02:24:11,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 02:24:11,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-10-11 02:24:11,141 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 2 [2021-10-11 02:24:11,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:11,141 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-10-11 02:24:11,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:24:11,142 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-10-11 02:24:11,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-11 02:24:11,142 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:11,142 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2021-10-11 02:24:11,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:24:11,143 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:24:11,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:11,157 INFO L82 PathProgramCache]: Analyzing trace with hash 2082, now seen corresponding path program 1 times [2021-10-11 02:24:11,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:11,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599499882] [2021-10-11 02:24:11,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:11,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:11,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:11,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599499882] [2021-10-11 02:24:11,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:11,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:24:11,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676390772] [2021-10-11 02:24:11,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:24:11,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:11,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:24:11,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:11,217 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2021-10-11 02:24:11,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:11,254 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2021-10-11 02:24:11,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:24:11,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2021-10-11 02:24:11,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:11,256 INFO L225 Difference]: With dead ends: 11 [2021-10-11 02:24:11,256 INFO L226 Difference]: Without dead ends: 11 [2021-10-11 02:24:11,257 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 [2021-10-11 02:24:11,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-11 02:24:11,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-11 02:24:11,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-11 02:24:11,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-10-11 02:24:11,260 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 2 [2021-10-11 02:24:11,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:11,260 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-10-11 02:24:11,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:24:11,260 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2021-10-11 02:24:11,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:24:11,261 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:11,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:11,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:24:11,262 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:24:11,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:11,263 INFO L82 PathProgramCache]: Analyzing trace with hash 437069424, now seen corresponding path program 1 times [2021-10-11 02:24:11,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:11,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344447845] [2021-10-11 02:24:11,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:11,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:11,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344447845] [2021-10-11 02:24:11,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:11,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:24:11,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121415379] [2021-10-11 02:24:11,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:24:11,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:11,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:24:11,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:24:11,327 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 4 states. [2021-10-11 02:24:11,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:11,375 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-10-11 02:24:11,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:24:11,376 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2021-10-11 02:24:11,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:11,377 INFO L225 Difference]: With dead ends: 15 [2021-10-11 02:24:11,377 INFO L226 Difference]: Without dead ends: 15 [2021-10-11 02:24:11,378 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:24:11,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-11 02:24:11,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2021-10-11 02:24:11,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-11 02:24:11,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-10-11 02:24:11,385 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2021-10-11 02:24:11,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:11,385 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-10-11 02:24:11,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:24:11,386 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2021-10-11 02:24:11,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:24:11,386 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:11,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:11,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:24:11,387 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:24:11,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:11,389 INFO L82 PathProgramCache]: Analyzing trace with hash 584832784, now seen corresponding path program 1 times [2021-10-11 02:24:11,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:11,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159911532] [2021-10-11 02:24:11,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:24:11,448 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:24:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:24:11,490 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:24:11,518 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:24:11,518 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:24:11,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:24:11,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:24:11 BoogieIcfgContainer [2021-10-11 02:24:11,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:24:11,542 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:24:11,543 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:24:11,543 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:24:11,544 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:10" (3/4) ... [2021-10-11 02:24:11,547 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:24:11,547 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:24:11,551 INFO L168 Benchmark]: Toolchain (without parser) took 1951.47 ms. Allocated memory was 104.9 MB in the beginning and 134.2 MB in the end (delta: 29.4 MB). Free memory was 68.1 MB in the beginning and 75.0 MB in the end (delta: -6.9 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:11,551 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 104.9 MB. Free memory is still 85.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:11,552 INFO L168 Benchmark]: CACSL2BoogieTranslator took 585.70 ms. Allocated memory is still 104.9 MB. Free memory was 68.0 MB in the beginning and 68.9 MB in the end (delta: -854.0 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:11,553 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.97 ms. Allocated memory is still 104.9 MB. Free memory was 68.9 MB in the beginning and 67.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:11,556 INFO L168 Benchmark]: Boogie Preprocessor took 23.19 ms. Allocated memory is still 104.9 MB. Free memory was 67.3 MB in the beginning and 66.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:11,556 INFO L168 Benchmark]: RCFGBuilder took 394.52 ms. Allocated memory is still 104.9 MB. Free memory was 66.0 MB in the beginning and 46.4 MB in the end (delta: 19.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:11,563 INFO L168 Benchmark]: TraceAbstraction took 875.40 ms. Allocated memory was 104.9 MB in the beginning and 134.2 MB in the end (delta: 29.4 MB). Free memory was 46.2 MB in the beginning and 76.2 MB in the end (delta: -29.9 MB). Peak memory consumption was 1.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:11,564 INFO L168 Benchmark]: Witness Printer took 6.11 ms. Allocated memory is still 134.2 MB. Free memory was 76.2 MB in the beginning and 75.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:11,572 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 104.9 MB. Free memory is still 85.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 585.70 ms. Allocated memory is still 104.9 MB. Free memory was 68.0 MB in the beginning and 68.9 MB in the end (delta: -854.0 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.97 ms. Allocated memory is still 104.9 MB. Free memory was 68.9 MB in the beginning and 67.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.19 ms. Allocated memory is still 104.9 MB. Free memory was 67.3 MB in the beginning and 66.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 394.52 ms. Allocated memory is still 104.9 MB. Free memory was 66.0 MB in the beginning and 46.4 MB in the end (delta: 19.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 875.40 ms. Allocated memory was 104.9 MB in the beginning and 134.2 MB in the end (delta: 29.4 MB). Free memory was 46.2 MB in the beginning and 76.2 MB in the end (delta: -29.9 MB). Peak memory consumption was 1.7 MB. Max. memory is 16.1 GB. * Witness Printer took 6.11 ms. Allocated memory is still 134.2 MB. Free memory was 76.2 MB in the beginning and 75.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 524]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 524. Possible FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 [L540] EXPR data.str.p2 [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 11 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 24 SDslu, 13 SDs, 0 SdLazy, 38 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 133 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:24:13,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:24:13,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:24:14,036 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:24:14,045 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:24:14,050 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:24:14,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:24:14,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:24:14,062 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:24:14,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:24:14,073 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:24:14,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:24:14,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:24:14,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:24:14,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:24:14,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:24:14,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:24:14,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:24:14,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:24:14,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:24:14,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:24:14,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:24:14,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:24:14,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:24:14,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:24:14,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:24:14,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:24:14,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:24:14,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:24:14,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:24:14,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:24:14,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:24:14,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:24:14,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:24:14,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:24:14,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:24:14,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:24:14,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:24:14,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:24:14,129 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:24:14,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:24:14,131 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-11 02:24:14,165 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:24:14,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:24:14,167 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:24:14,168 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:24:14,168 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:24:14,168 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:24:14,168 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:24:14,169 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:24:14,169 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:24:14,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:24:14,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:24:14,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:24:14,172 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:24:14,172 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:24:14,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:24:14,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:24:14,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:24:14,173 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:24:14,173 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:24:14,173 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 02:24:14,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:24:14,174 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:24:14,174 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:24:14,174 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:24:14,175 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:24:14,175 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:24:14,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:24:14,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:24:14,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:24:14,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:24:14,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:24:14,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:24:14,177 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:24:14,177 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:24:14,177 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:24:14,177 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:24:14,178 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fdeb5a608a809e67439a428636d313b7ceb3d25 [2021-10-11 02:24:14,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:24:14,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:24:14,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:24:14,571 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:24:14,573 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:24:14,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2021-10-11 02:24:14,647 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/data/31fdf5385/7f1e53b331d544ddadc022dbd427c3ab/FLAGd7da4850e [2021-10-11 02:24:15,309 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:24:15,310 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2021-10-11 02:24:15,321 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/data/31fdf5385/7f1e53b331d544ddadc022dbd427c3ab/FLAGd7da4850e [2021-10-11 02:24:15,658 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/data/31fdf5385/7f1e53b331d544ddadc022dbd427c3ab [2021-10-11 02:24:15,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:24:15,665 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:24:15,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:15,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:24:15,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:24:15,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:15" (1/1) ... [2021-10-11 02:24:15,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d824f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:15, skipping insertion in model container [2021-10-11 02:24:15,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:15" (1/1) ... [2021-10-11 02:24:15,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:24:15,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:24:16,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:16,118 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:24:16,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:16,245 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:24:16,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16 WrapperNode [2021-10-11 02:24:16,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:16,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:16,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:24:16,249 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:24:16,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:16,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:24:16,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:24:16,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:24:16,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:24:16,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:24:16,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:24:16,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:24:16,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:24:16,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 02:24:16,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 02:24:16,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-11 02:24:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:24:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-11 02:24:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:24:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 02:24:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:24:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:24:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:24:17,041 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:24:17,043 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-11 02:24:17,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:17 BoogieIcfgContainer [2021-10-11 02:24:17,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:24:17,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:24:17,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:24:17,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:24:17,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:24:15" (1/3) ... [2021-10-11 02:24:17,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f45d879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:17, skipping insertion in model container [2021-10-11 02:24:17,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (2/3) ... [2021-10-11 02:24:17,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f45d879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:17, skipping insertion in model container [2021-10-11 02:24:17,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:17" (3/3) ... [2021-10-11 02:24:17,055 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2021-10-11 02:24:17,068 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:24:17,071 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2021-10-11 02:24:17,082 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-10-11 02:24:17,114 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:24:17,115 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 02:24:17,115 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:24:17,115 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:24:17,115 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:24:17,116 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:24:17,116 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:24:17,116 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:24:17,130 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2021-10-11 02:24:17,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:24:17,134 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:17,135 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:24:17,135 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:24:17,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:17,141 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2021-10-11 02:24:17,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:24:17,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [527414494] [2021-10-11 02:24:17,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:24:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:17,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:24:17,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:24:17,320 INFO L348 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-11 02:24:17,321 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2021-10-11 02:24:17,326 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:24:17,332 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:24:17,338 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-11 02:24:17,338 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:13 [2021-10-11 02:24:17,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:17,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:24:17,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [527414494] [2021-10-11 02:24:17,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:17,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:24:17,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588694712] [2021-10-11 02:24:17,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:24:17,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:24:17,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:24:17,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:17,376 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2021-10-11 02:24:17,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:17,461 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-10-11 02:24:17,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:24:17,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-10-11 02:24:17,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:17,470 INFO L225 Difference]: With dead ends: 19 [2021-10-11 02:24:17,471 INFO L226 Difference]: Without dead ends: 17 [2021-10-11 02:24:17,472 INFO L677 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 [2021-10-11 02:24:17,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-11 02:24:17,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-11 02:24:17,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-11 02:24:17,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-11 02:24:17,498 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 3 [2021-10-11 02:24:17,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:17,499 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-11 02:24:17,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:24:17,499 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-10-11 02:24:17,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:24:17,500 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:17,500 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:24:17,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:24:17,711 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:24:17,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:17,712 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-10-11 02:24:17,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:24:17,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609582799] [2021-10-11 02:24:17,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:24:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:17,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:24:17,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:24:17,815 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_17|], 1=[|v_#valid_23|]} [2021-10-11 02:24:17,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 02:24:17,824 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-10-11 02:24:17,827 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:24:17,843 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:24:17,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 02:24:17,853 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-10-11 02:24:17,855 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 02:24:17,865 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:24:17,869 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-11 02:24:17,870 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2021-10-11 02:24:17,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:17,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:24:17,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609582799] [2021-10-11 02:24:17,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:17,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:24:17,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064381493] [2021-10-11 02:24:17,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:24:17,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:24:17,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:24:17,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:17,905 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 3 states. [2021-10-11 02:24:17,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:17,977 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2021-10-11 02:24:17,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:24:17,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-10-11 02:24:17,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:17,978 INFO L225 Difference]: With dead ends: 12 [2021-10-11 02:24:17,979 INFO L226 Difference]: Without dead ends: 12 [2021-10-11 02:24:17,979 INFO L677 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 [2021-10-11 02:24:17,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-11 02:24:17,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-11 02:24:17,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-11 02:24:17,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2021-10-11 02:24:17,982 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 3 [2021-10-11 02:24:17,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:17,982 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-10-11 02:24:17,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:24:17,982 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2021-10-11 02:24:17,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:24:17,983 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:17,983 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:18,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:24:18,184 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:24:18,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:18,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1894559917, now seen corresponding path program 1 times [2021-10-11 02:24:18,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:24:18,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1657598510] [2021-10-11 02:24:18,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:24:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:18,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:24:18,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:24:18,260 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-10-11 02:24:18,261 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:24:18,265 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:24:18,265 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 02:24:18,265 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2021-10-11 02:24:18,281 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-10-11 02:24:18,284 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:24:18,286 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:24:18,287 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 02:24:18,287 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2021-10-11 02:24:18,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:18,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:24:18,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1657598510] [2021-10-11 02:24:18,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:18,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:24:18,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225144896] [2021-10-11 02:24:18,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:24:18,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:24:18,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:24:18,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:24:18,300 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 4 states. [2021-10-11 02:24:18,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:18,414 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-10-11 02:24:18,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:24:18,414 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-10-11 02:24:18,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:18,415 INFO L225 Difference]: With dead ends: 16 [2021-10-11 02:24:18,415 INFO L226 Difference]: Without dead ends: 16 [2021-10-11 02:24:18,415 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:24:18,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-11 02:24:18,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2021-10-11 02:24:18,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-11 02:24:18,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-10-11 02:24:18,417 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 9 [2021-10-11 02:24:18,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:18,418 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-10-11 02:24:18,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:24:18,418 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-10-11 02:24:18,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:24:18,418 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:18,418 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:18,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:24:18,627 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:24:18,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:18,628 INFO L82 PathProgramCache]: Analyzing trace with hash 2042323277, now seen corresponding path program 1 times [2021-10-11 02:24:18,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:24:18,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131065546] [2021-10-11 02:24:18,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8b516c-1e13-4310-9316-bbf03c3ccbfa/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2021-10-11 02:24:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:24:18,708 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:24:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:24:18,745 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:24:18,769 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:24:18,769 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:24:18,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:24:18,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:24:18 BoogieIcfgContainer [2021-10-11 02:24:18,993 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:24:18,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:24:18,994 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:24:18,994 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:24:18,995 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:17" (3/4) ... [2021-10-11 02:24:18,998 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:24:18,999 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:24:19,000 INFO L168 Benchmark]: Toolchain (without parser) took 3334.56 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 37.4 MB in the beginning and 42.6 MB in the end (delta: -5.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:19,002 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 60.8 MB. Free memory was 42.1 MB in the beginning and 42.0 MB in the end (delta: 46.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:19,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 566.18 ms. Allocated memory is still 60.8 MB. Free memory was 37.1 MB in the beginning and 31.1 MB in the end (delta: 6.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:19,007 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.96 ms. Allocated memory is still 60.8 MB. Free memory was 31.0 MB in the beginning and 29.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:19,008 INFO L168 Benchmark]: Boogie Preprocessor took 60.06 ms. Allocated memory is still 60.8 MB. Free memory was 29.2 MB in the beginning and 27.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:19,008 INFO L168 Benchmark]: RCFGBuilder took 666.29 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 27.7 MB in the beginning and 44.1 MB in the end (delta: -16.4 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:19,009 INFO L168 Benchmark]: TraceAbstraction took 1945.55 ms. Allocated memory is still 77.6 MB. Free memory was 43.9 MB in the beginning and 43.1 MB in the end (delta: 788.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:19,009 INFO L168 Benchmark]: Witness Printer took 4.69 ms. Allocated memory is still 77.6 MB. Free memory is still 42.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:19,012 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 60.8 MB. Free memory was 42.1 MB in the beginning and 42.0 MB in the end (delta: 46.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 566.18 ms. Allocated memory is still 60.8 MB. Free memory was 37.1 MB in the beginning and 31.1 MB in the end (delta: 6.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.96 ms. Allocated memory is still 60.8 MB. Free memory was 31.0 MB in the beginning and 29.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.06 ms. Allocated memory is still 60.8 MB. Free memory was 29.2 MB in the beginning and 27.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 666.29 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 27.7 MB in the beginning and 44.1 MB in the end (delta: -16.4 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1945.55 ms. Allocated memory is still 77.6 MB. Free memory was 43.9 MB in the beginning and 43.1 MB in the end (delta: 788.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.69 ms. Allocated memory is still 77.6 MB. Free memory is still 42.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 524]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 524. Possible FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 [L540] EXPR data.str.p2 [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 11 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 26 SDtfs, 24 SDslu, 15 SDs, 0 SdLazy, 41 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 12 ConstructedInterpolants, 1 QuantifiedInterpolants, 204 SizeOfPredicates, 5 NumberOfNonLiveVariables, 113 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...