./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:10:02,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:10:02,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:10:02,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:10:02,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:10:02,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:10:02,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:10:02,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:10:02,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:10:02,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:10:02,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:10:02,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:10:02,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:10:02,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:10:02,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:10:02,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:10:02,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:10:02,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:10:02,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:10:02,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:10:02,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:10:02,270 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:10:02,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:10:02,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:10:02,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:10:02,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:10:02,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:10:02,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:10:02,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:10:02,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:10:02,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:10:02,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:10:02,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:10:02,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:10:02,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:10:02,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:10:02,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:10:02,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:10:02,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:10:02,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:10:02,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:10:02,296 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:10:02,328 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:10:02,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:10:02,329 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:10:02,329 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:10:02,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:10:02,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:10:02,331 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:10:02,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:10:02,332 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:10:02,332 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:10:02,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:10:02,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:10:02,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:10:02,334 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:10:02,334 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:10:02,334 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:10:02,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:10:02,335 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:10:02,335 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:10:02,336 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:10:02,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:10:02,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:10:02,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:10:02,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:10:02,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:10:02,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:10:02,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:10:02,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:10:02,339 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:10:02,339 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 [2021-10-28 23:10:02,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:10:02,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:10:02,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:10:02,696 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:10:02,697 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:10:02,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2021-10-28 23:10:02,778 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/data/f6357e9eb/a06a85ef4bf44f5aa32a5096d65f8349/FLAGb326502ce [2021-10-28 23:10:03,500 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:10:03,501 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2021-10-28 23:10:03,516 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/data/f6357e9eb/a06a85ef4bf44f5aa32a5096d65f8349/FLAGb326502ce [2021-10-28 23:10:03,722 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/data/f6357e9eb/a06a85ef4bf44f5aa32a5096d65f8349 [2021-10-28 23:10:03,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:10:03,727 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:10:03,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:10:03,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:10:03,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:10:03,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:10:03" (1/1) ... [2021-10-28 23:10:03,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61fbbdb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:03, skipping insertion in model container [2021-10-28 23:10:03,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:10:03" (1/1) ... [2021-10-28 23:10:03,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:10:03,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:10:04,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:10:04,204 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:10:04,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:10:04,303 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:10:04,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:04 WrapperNode [2021-10-28 23:10:04,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:10:04,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:10:04,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:10:04,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:10:04,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:04" (1/1) ... [2021-10-28 23:10:04,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:04" (1/1) ... [2021-10-28 23:10:04,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:04" (1/1) ... [2021-10-28 23:10:04,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:04" (1/1) ... [2021-10-28 23:10:04,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:04" (1/1) ... [2021-10-28 23:10:04,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:04" (1/1) ... [2021-10-28 23:10:04,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:04" (1/1) ... [2021-10-28 23:10:04,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:10:04,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:10:04,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:10:04,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:10:04,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:04" (1/1) ... [2021-10-28 23:10:04,423 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:10:04,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:10:04,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:10:04,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:10:04,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:10:04,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:10:04,500 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-28 23:10:04,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:10:04,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:10:04,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:10:04,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:10:04,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:10:04,502 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:10:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:10:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-28 23:10:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-28 23:10:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-28 23:10:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-28 23:10:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:10:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:10:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:10:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:10:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:10:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:10:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:10:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:10:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:10:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:10:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:10:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:10:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:10:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:10:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:10:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:10:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:10:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:10:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:10:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:10:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:10:04,510 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:10:04,510 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:10:04,510 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:10:04,510 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:10:04,510 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:10:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:10:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:10:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:10:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:10:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:10:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:10:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:10:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:10:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:10:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:10:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:10:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:10:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:10:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:10:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:10:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:10:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:10:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:10:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:10:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:10:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:10:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:10:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:10:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:10:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:10:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:10:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:10:04,519 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:10:04,519 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:10:04,521 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:10:04,521 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:10:04,522 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:10:04,522 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:10:04,522 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:10:04,522 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:10:04,522 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:10:04,522 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:10:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:10:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:10:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:10:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:10:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:10:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:10:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:10:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:10:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:10:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:10:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:10:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:10:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:10:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:10:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:10:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:10:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:10:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:10:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:10:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:10:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:10:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:10:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:10:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:10:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:10:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:10:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:10:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:10:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:10:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:10:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:10:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:10:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:10:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:10:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:10:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:10:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:10:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:10:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:10:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:10:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:10:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:10:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:10:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:10:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:10:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:10:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:10:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:10:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:10:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:10:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:10:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:10:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:10:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:10:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:10:05,176 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:10:05,176 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-28 23:10:05,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:10:05 BoogieIcfgContainer [2021-10-28 23:10:05,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:10:05,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:10:05,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:10:05,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:10:05,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:10:03" (1/3) ... [2021-10-28 23:10:05,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea37223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:10:05, skipping insertion in model container [2021-10-28 23:10:05,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:04" (2/3) ... [2021-10-28 23:10:05,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea37223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:10:05, skipping insertion in model container [2021-10-28 23:10:05,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:10:05" (3/3) ... [2021-10-28 23:10:05,191 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2021-10-28 23:10:05,198 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:10:05,198 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-10-28 23:10:05,251 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:10:05,260 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:10:05,260 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-10-28 23:10:05,287 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 25 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:10:05,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 23:10:05,297 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:10:05,297 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:10:05,298 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-28 23:10:05,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:10:05,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1484797383, now seen corresponding path program 1 times [2021-10-28 23:10:05,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:10:05,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267445381] [2021-10-28 23:10:05,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:10:05,327 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:10:05,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:10:05,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:10:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:10:05,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:10:05,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:10:05,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267445381] [2021-10-28 23:10:05,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267445381] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:10:05,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:10:05,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:10:05,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512994002] [2021-10-28 23:10:05,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:10:05,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:10:05,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:10:05,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:10:05,818 INFO L87 Difference]: Start difference. First operand has 30 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 25 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:10:05,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:10:05,963 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2021-10-28 23:10:05,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:10:05,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-10-28 23:10:05,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:10:05,977 INFO L225 Difference]: With dead ends: 25 [2021-10-28 23:10:05,977 INFO L226 Difference]: Without dead ends: 22 [2021-10-28 23:10:05,980 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:10:06,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-28 23:10:06,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-10-28 23:10:06,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:10:06,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-10-28 23:10:06,028 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 7 [2021-10-28 23:10:06,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:10:06,028 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-10-28 23:10:06,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:10:06,029 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-10-28 23:10:06,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 23:10:06,029 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:10:06,030 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:10:06,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:10:06,032 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-28 23:10:06,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:10:06,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1484797382, now seen corresponding path program 1 times [2021-10-28 23:10:06,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:10:06,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142658147] [2021-10-28 23:10:06,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:10:06,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:10:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:10:06,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:10:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:10:06,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:10:06,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:10:06,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142658147] [2021-10-28 23:10:06,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142658147] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:10:06,183 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:10:06,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:10:06,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788263363] [2021-10-28 23:10:06,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:10:06,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:10:06,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:10:06,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:10:06,186 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:10:06,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:10:06,239 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-10-28 23:10:06,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:10:06,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-10-28 23:10:06,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:10:06,240 INFO L225 Difference]: With dead ends: 17 [2021-10-28 23:10:06,240 INFO L226 Difference]: Without dead ends: 17 [2021-10-28 23:10:06,241 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:10:06,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-28 23:10:06,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-28 23:10:06,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:10:06,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-28 23:10:06,246 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2021-10-28 23:10:06,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:10:06,246 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-28 23:10:06,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:10:06,247 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-10-28 23:10:06,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 23:10:06,247 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:10:06,248 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:10:06,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:10:06,248 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr10ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-28 23:10:06,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:10:06,249 INFO L85 PathProgramCache]: Analyzing trace with hash 910104040, now seen corresponding path program 1 times [2021-10-28 23:10:06,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:10:06,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252272643] [2021-10-28 23:10:06,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:10:06,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:10:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:10:06,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:10:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:10:06,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:10:06,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:10:06,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252272643] [2021-10-28 23:10:06,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252272643] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:10:06,358 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:10:06,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:10:06,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237123288] [2021-10-28 23:10:06,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:10:06,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:10:06,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:10:06,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:10:06,361 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:10:06,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:10:06,428 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-10-28 23:10:06,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:10:06,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-10-28 23:10:06,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:10:06,430 INFO L225 Difference]: With dead ends: 21 [2021-10-28 23:10:06,430 INFO L226 Difference]: Without dead ends: 21 [2021-10-28 23:10:06,430 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:10:06,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-28 23:10:06,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2021-10-28 23:10:06,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:10:06,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-10-28 23:10:06,435 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2021-10-28 23:10:06,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:10:06,436 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-10-28 23:10:06,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:10:06,436 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-10-28 23:10:06,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 23:10:06,437 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:10:06,438 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:10:06,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:10:06,438 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr10ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-28 23:10:06,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:10:06,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1057867400, now seen corresponding path program 1 times [2021-10-28 23:10:06,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:10:06,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210644195] [2021-10-28 23:10:06,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:10:06,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:10:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:10:06,502 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:10:06,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:10:06,571 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:10:06,572 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:10:06,573 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr10ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:10:06,576 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-10-28 23:10:06,577 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-10-28 23:10:06,577 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-10-28 23:10:06,577 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-10-28 23:10:06,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-10-28 23:10:06,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-10-28 23:10:06,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr6REQUIRES_VIOLATION [2021-10-28 23:10:06,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr7REQUIRES_VIOLATION [2021-10-28 23:10:06,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr8REQUIRES_VIOLATION [2021-10-28 23:10:06,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr9REQUIRES_VIOLATION [2021-10-28 23:10:06,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:10:06,584 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-10-28 23:10:06,588 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:10:06,600 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 23:10:06,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:10:06 BoogieIcfgContainer [2021-10-28 23:10:06,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:10:06,615 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:10:06,615 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:10:06,615 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:10:06,616 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:10:05" (3/4) ... [2021-10-28 23:10:06,620 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:10:06,620 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:10:06,622 INFO L168 Benchmark]: Toolchain (without parser) took 2893.85 ms. Allocated memory is still 115.3 MB. Free memory was 75.1 MB in the beginning and 51.2 MB in the end (delta: 23.9 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:10:06,623 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 115.3 MB. Free memory is still 92.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:10:06,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 574.51 ms. Allocated memory is still 115.3 MB. Free memory was 74.9 MB in the beginning and 83.6 MB in the end (delta: -8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:10:06,625 INFO L168 Benchmark]: Boogie Preprocessor took 96.50 ms. Allocated memory is still 115.3 MB. Free memory was 83.6 MB in the beginning and 81.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:10:06,626 INFO L168 Benchmark]: RCFGBuilder took 776.25 ms. Allocated memory is still 115.3 MB. Free memory was 81.1 MB in the beginning and 61.9 MB in the end (delta: 19.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:10:06,627 INFO L168 Benchmark]: TraceAbstraction took 1433.14 ms. Allocated memory is still 115.3 MB. Free memory was 61.6 MB in the beginning and 51.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:10:06,628 INFO L168 Benchmark]: Witness Printer took 5.66 ms. Allocated memory is still 115.3 MB. Free memory was 51.7 MB in the beginning and 51.2 MB in the end (delta: 486.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:10:06,631 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 115.3 MB. Free memory is still 92.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 574.51 ms. Allocated memory is still 115.3 MB. Free memory was 74.9 MB in the beginning and 83.6 MB in the end (delta: -8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 96.50 ms. Allocated memory is still 115.3 MB. Free memory was 83.6 MB in the beginning and 81.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 776.25 ms. Allocated memory is still 115.3 MB. Free memory was 81.1 MB in the beginning and 61.9 MB in the end (delta: 19.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1433.14 ms. Allocated memory is still 115.3 MB. Free memory was 61.6 MB in the beginning and 51.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. * Witness Printer took 5.66 ms. Allocated memory is still 115.3 MB. Free memory was 51.7 MB in the beginning and 51.2 MB in the end (delta: 486.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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) VAL [data={3:0}, malloc(37U)={-1:0}] [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 VAL [data={3:0}] [L540] EXPR data.str.p2 VAL [data={3:0}, data.str.p2=30] [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; VAL [\result=0] - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 48 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 26 SDslu, 41 SDs, 0 SdLazy, 97 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 0.4s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 119 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 [2021-10-28 23:10:06,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:10:09,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:10:09,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:10:10,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:10:10,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:10:10,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:10:10,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:10:10,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:10:10,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:10:10,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:10:10,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:10:10,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:10:10,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:10:10,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:10:10,052 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:10:10,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:10:10,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:10:10,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:10:10,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:10:10,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:10:10,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:10:10,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:10:10,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:10:10,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:10:10,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:10:10,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:10:10,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:10:10,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:10:10,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:10:10,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:10:10,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:10:10,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:10:10,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:10:10,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:10:10,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:10:10,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:10:10,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:10:10,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:10:10,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:10:10,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:10:10,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:10:10,102 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:10:10,134 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:10:10,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:10:10,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:10:10,135 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:10:10,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:10:10,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:10:10,138 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:10:10,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:10:10,138 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:10:10,139 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:10:10,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:10:10,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:10:10,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:10:10,140 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:10:10,140 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:10:10,140 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:10:10,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:10:10,141 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:10:10,141 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:10:10,142 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:10:10,142 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:10:10,142 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:10:10,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:10:10,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:10:10,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:10:10,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:10:10,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:10:10,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:10:10,144 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:10:10,145 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:10:10,145 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:10:10,145 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:10:10,146 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_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 [2021-10-28 23:10:10,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:10:10,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:10:10,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:10:10,627 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:10:10,628 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:10:10,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2021-10-28 23:10:10,721 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/data/87025af93/eddbb2bf88c647039c1228ad4fc0112b/FLAG6c8b99476 [2021-10-28 23:10:11,537 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:10:11,537 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2021-10-28 23:10:11,557 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/data/87025af93/eddbb2bf88c647039c1228ad4fc0112b/FLAG6c8b99476 [2021-10-28 23:10:11,809 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/data/87025af93/eddbb2bf88c647039c1228ad4fc0112b [2021-10-28 23:10:11,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:10:11,814 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:10:11,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:10:11,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:10:11,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:10:11,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:10:11" (1/1) ... [2021-10-28 23:10:11,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3358a4b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:11, skipping insertion in model container [2021-10-28 23:10:11,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:10:11" (1/1) ... [2021-10-28 23:10:11,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:10:11,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:10:12,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:10:12,538 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:10:12,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:10:12,683 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:10:12,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:12 WrapperNode [2021-10-28 23:10:12,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:10:12,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:10:12,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:10:12,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:10:12,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:12" (1/1) ... [2021-10-28 23:10:12,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:12" (1/1) ... [2021-10-28 23:10:12,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:12" (1/1) ... [2021-10-28 23:10:12,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:12" (1/1) ... [2021-10-28 23:10:12,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:12" (1/1) ... [2021-10-28 23:10:12,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:12" (1/1) ... [2021-10-28 23:10:12,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:12" (1/1) ... [2021-10-28 23:10:12,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:10:12,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:10:12,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:10:12,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:10:12,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:12" (1/1) ... [2021-10-28 23:10:12,845 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:10:12,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:10:12,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:10:12,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:10:12,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:10:12,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:10:12,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:10:12,950 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-28 23:10:12,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:10:12,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:10:12,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:10:12,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:10:12,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:10:12,954 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:10:12,954 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:10:12,955 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-28 23:10:12,955 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-28 23:10:12,955 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-28 23:10:12,956 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-28 23:10:12,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:10:12,956 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:10:12,956 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:10:12,957 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:10:12,957 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:10:12,957 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:10:12,957 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:10:12,958 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:10:12,959 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:10:12,959 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:10:12,959 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:10:12,960 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:10:12,960 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:10:12,960 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:10:12,961 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:10:12,961 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:10:12,961 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:10:12,961 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:10:12,962 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:10:12,962 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:10:12,962 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:10:12,963 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:10:12,963 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:10:12,963 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:10:12,963 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:10:12,964 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:10:12,964 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:10:12,964 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:10:12,964 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:10:12,965 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:10:12,965 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:10:12,966 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:10:12,966 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:10:12,968 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:10:12,968 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:10:12,968 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:10:12,969 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:10:12,969 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:10:12,970 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:10:12,970 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:10:12,970 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:10:12,970 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:10:12,971 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:10:12,971 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:10:12,972 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:10:12,972 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:10:12,972 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:10:12,973 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:10:12,973 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:10:12,974 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:10:12,975 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:10:12,976 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:10:12,977 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:10:12,977 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:10:12,978 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:10:12,978 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:10:12,978 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:10:12,978 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:10:12,979 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:10:12,979 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:10:12,979 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:10:12,979 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:10:12,980 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:10:12,980 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:10:12,980 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:10:12,980 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:10:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:10:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:10:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:10:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:10:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:10:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:10:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:10:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:10:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:10:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:10:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:10:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:10:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:10:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:10:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:10:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:10:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:10:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:10:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:10:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:10:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:10:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:10:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:10:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:10:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:10:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:10:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:10:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:10:12,991 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:10:12,991 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:10:12,992 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:10:12,992 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:10:12,992 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:10:12,992 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:10:12,993 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:10:12,993 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:10:12,993 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:10:12,993 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:10:12,994 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:10:12,994 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:10:12,994 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:10:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:10:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:10:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:10:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:10:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:10:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:10:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-28 23:10:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:10:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:10:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 23:10:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:10:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:10:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:10:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-28 23:10:13,705 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:10:13,705 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-28 23:10:13,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:10:13 BoogieIcfgContainer [2021-10-28 23:10:13,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:10:13,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:10:13,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:10:13,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:10:13,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:10:11" (1/3) ... [2021-10-28 23:10:13,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77be72b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:10:13, skipping insertion in model container [2021-10-28 23:10:13,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:10:12" (2/3) ... [2021-10-28 23:10:13,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77be72b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:10:13, skipping insertion in model container [2021-10-28 23:10:13,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:10:13" (3/3) ... [2021-10-28 23:10:13,723 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2021-10-28 23:10:13,730 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:10:13,730 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-10-28 23:10:13,806 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:10:13,817 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:10:13,817 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-10-28 23:10:13,838 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 25 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:10:13,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 23:10:13,860 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:10:13,860 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:10:13,861 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-28 23:10:13,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:10:13,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1511250447, now seen corresponding path program 1 times [2021-10-28 23:10:13,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:10:13,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [160501687] [2021-10-28 23:10:13,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:10:13,908 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:10:13,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:10:13,916 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:10:13,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:10:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:10:14,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:10:14,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:10:14,396 INFO L354 Elim1Store]: treesize reduction 13, result has 35.0 percent of original size [2021-10-28 23:10:14,398 INFO L388 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 13 [2021-10-28 23:10:14,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:10:14,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:10:14,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:10:14,546 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:10:14,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [160501687] [2021-10-28 23:10:14,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [160501687] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:10:14,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:10:14,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:10:14,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813246375] [2021-10-28 23:10:14,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:10:14,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:10:14,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:10:14,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:10:14,576 INFO L87 Difference]: Start difference. First operand has 30 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 25 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:10:14,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:10:14,694 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2021-10-28 23:10:14,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:10:14,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-10-28 23:10:14,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:10:14,713 INFO L225 Difference]: With dead ends: 25 [2021-10-28 23:10:14,713 INFO L226 Difference]: Without dead ends: 22 [2021-10-28 23:10:14,715 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:10:14,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-28 23:10:14,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-10-28 23:10:14,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:10:14,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-10-28 23:10:14,758 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 7 [2021-10-28 23:10:14,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:10:14,759 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-10-28 23:10:14,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:10:14,760 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-10-28 23:10:14,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 23:10:14,761 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:10:14,761 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:10:14,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:10:14,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:10:14,984 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-28 23:10:14,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:10:14,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1511250448, now seen corresponding path program 1 times [2021-10-28 23:10:14,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:10:14,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631072767] [2021-10-28 23:10:14,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:10:14,989 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:10:14,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:10:14,991 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:10:14,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:10:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:10:15,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:10:15,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:10:15,290 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 23:10:15,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2021-10-28 23:10:15,306 INFO L388 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 20 treesize of output 18 [2021-10-28 23:10:15,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:10:15,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:10:15,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:10:15,500 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:10:15,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631072767] [2021-10-28 23:10:15,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631072767] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:10:15,501 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:10:15,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-28 23:10:15,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253241406] [2021-10-28 23:10:15,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:10:15,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:10:15,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:10:15,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:10:15,505 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:10:15,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:10:15,596 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-10-28 23:10:15,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:10:15,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-10-28 23:10:15,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:10:15,598 INFO L225 Difference]: With dead ends: 17 [2021-10-28 23:10:15,599 INFO L226 Difference]: Without dead ends: 17 [2021-10-28 23:10:15,599 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:10:15,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-28 23:10:15,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-28 23:10:15,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:10:15,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-28 23:10:15,603 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2021-10-28 23:10:15,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:10:15,604 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-28 23:10:15,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:10:15,604 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-10-28 23:10:15,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 23:10:15,605 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:10:15,605 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:10:15,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:10:15,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:10:15,818 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr10ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-28 23:10:15,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:10:15,818 INFO L85 PathProgramCache]: Analyzing trace with hash -127243832, now seen corresponding path program 1 times [2021-10-28 23:10:15,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:10:15,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1467489783] [2021-10-28 23:10:15,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:10:15,820 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:10:15,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:10:15,822 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:10:15,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:10:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:10:16,045 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:10:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:10:16,196 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 23:10:16,196 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:10:16,197 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr10ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:10:16,200 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-10-28 23:10:16,200 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-10-28 23:10:16,201 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-10-28 23:10:16,201 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-10-28 23:10:16,201 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-10-28 23:10:16,202 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-10-28 23:10:16,217 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr6REQUIRES_VIOLATION [2021-10-28 23:10:16,217 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr7REQUIRES_VIOLATION [2021-10-28 23:10:16,217 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr8REQUIRES_VIOLATION [2021-10-28 23:10:16,218 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr9REQUIRES_VIOLATION [2021-10-28 23:10:16,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-28 23:10:16,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:10:16,422 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 23:10:16,425 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:10:16,436 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 23:10:16,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:10:16 BoogieIcfgContainer [2021-10-28 23:10:16,451 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:10:16,451 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:10:16,451 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:10:16,452 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:10:16,452 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:10:13" (3/4) ... [2021-10-28 23:10:16,456 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:10:16,458 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:10:16,464 INFO L168 Benchmark]: Toolchain (without parser) took 4645.15 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 41.8 MB in the beginning and 51.4 MB in the end (delta: -9.6 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:10:16,465 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 50.3 MB. Free memory is still 30.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:10:16,466 INFO L168 Benchmark]: CACSL2BoogieTranslator took 870.99 ms. Allocated memory is still 65.0 MB. Free memory was 41.6 MB in the beginning and 41.2 MB in the end (delta: 454.2 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:10:16,468 INFO L168 Benchmark]: Boogie Preprocessor took 143.81 ms. Allocated memory is still 65.0 MB. Free memory was 41.2 MB in the beginning and 38.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:10:16,470 INFO L168 Benchmark]: RCFGBuilder took 875.63 ms. Allocated memory is still 65.0 MB. Free memory was 38.3 MB in the beginning and 34.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:10:16,477 INFO L168 Benchmark]: TraceAbstraction took 2738.79 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 33.9 MB in the beginning and 51.9 MB in the end (delta: -18.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:10:16,478 INFO L168 Benchmark]: Witness Printer took 7.28 ms. Allocated memory is still 79.7 MB. Free memory was 51.9 MB in the beginning and 51.4 MB in the end (delta: 482.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:10:16,486 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 50.3 MB. Free memory is still 30.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 870.99 ms. Allocated memory is still 65.0 MB. Free memory was 41.6 MB in the beginning and 41.2 MB in the end (delta: 454.2 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 143.81 ms. Allocated memory is still 65.0 MB. Free memory was 41.2 MB in the beginning and 38.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 875.63 ms. Allocated memory is still 65.0 MB. Free memory was 38.3 MB in the beginning and 34.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2738.79 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 33.9 MB in the beginning and 51.9 MB in the end (delta: -18.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 7.28 ms. Allocated memory is still 79.7 MB. Free memory was 51.9 MB in the beginning and 51.4 MB in the end (delta: 482.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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) VAL [data={15:0}, malloc(37U)={1:0}] [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 VAL [data={15:0}] [L540] EXPR data.str.p2 VAL [data={15:0}, data.str.p2=30] [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; VAL [\result=0] - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 54 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 35 SDslu, 11 SDs, 0 SdLazy, 23 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 1 QuantifiedInterpolants, 62 SizeOfPredicates, 5 NumberOfNonLiveVariables, 122 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 [2021-10-28 23:10:16,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ecdb0e-da9d-4335-9174-ce1c0259a543/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...