./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/locks/test_locks_14-2.c --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_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_14-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg --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 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_14-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg --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 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 09:38:52,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:38:52,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:38:52,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:38:52,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:38:52,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:38:52,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:38:52,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:38:52,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:38:52,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:38:52,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:38:52,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:38:52,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:38:52,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:38:52,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:38:52,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:38:52,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:38:52,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:38:52,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:38:52,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:38:52,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:38:52,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:38:52,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:38:52,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:38:52,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:38:52,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:38:52,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:38:52,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:38:52,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:38:52,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:38:52,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:38:52,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:38:52,535 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:38:52,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:38:52,538 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:38:52,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:38:52,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:38:52,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:38:52,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:38:52,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:38:52,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:38:52,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 09:38:52,565 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:38:52,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:38:52,566 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:38:52,566 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:38:52,567 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:38:52,568 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:38:52,568 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:38:52,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:38:52,568 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:38:52,569 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:38:52,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:38:52,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:38:52,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:38:52,570 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:38:52,570 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:38:52,570 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:38:52,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:38:52,570 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:38:52,571 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:38:52,571 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:38:52,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:38:52,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:38:52,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:38:52,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:38:52,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:38:52,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:38:52,573 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:38:52,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:38:52,573 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:38:52,573 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_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c [2021-10-28 09:38:52,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:38:52,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:38:52,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:38:52,837 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:38:52,838 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:38:52,839 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/locks/test_locks_14-2.c [2021-10-28 09:38:52,915 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/data/b55b44913/a57c9d22e458446693201a1c87d04a6f/FLAG012ed3af6 [2021-10-28 09:38:53,481 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:38:53,482 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/sv-benchmarks/c/locks/test_locks_14-2.c [2021-10-28 09:38:53,491 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/data/b55b44913/a57c9d22e458446693201a1c87d04a6f/FLAG012ed3af6 [2021-10-28 09:38:53,852 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/data/b55b44913/a57c9d22e458446693201a1c87d04a6f [2021-10-28 09:38:53,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:38:53,855 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:38:53,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:38:53,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:38:53,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:38:53,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:38:53" (1/1) ... [2021-10-28 09:38:53,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c9b18e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:53, skipping insertion in model container [2021-10-28 09:38:53,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:38:53" (1/1) ... [2021-10-28 09:38:53,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:38:53,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:38:54,106 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2021-10-28 09:38:54,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:38:54,119 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:38:54,148 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2021-10-28 09:38:54,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:38:54,162 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:38:54,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:54 WrapperNode [2021-10-28 09:38:54,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:38:54,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:38:54,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:38:54,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:38:54,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:54" (1/1) ... [2021-10-28 09:38:54,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:54" (1/1) ... [2021-10-28 09:38:54,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:54" (1/1) ... [2021-10-28 09:38:54,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:54" (1/1) ... [2021-10-28 09:38:54,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:54" (1/1) ... [2021-10-28 09:38:54,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:54" (1/1) ... [2021-10-28 09:38:54,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:54" (1/1) ... [2021-10-28 09:38:54,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:38:54,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:38:54,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:38:54,241 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:38:54,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:54" (1/1) ... [2021-10-28 09:38:54,254 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:38:54,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:38:54,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:38:54,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:38:54,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 09:38:54,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:38:54,317 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-28 09:38:54,317 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 09:38:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 09:38:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-28 09:38:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-28 09:38:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:38:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 09:38:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 09:38:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 09:38:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:38:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:38:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:38:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:38:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:38:54,627 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:38:54,627 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 09:38:54,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:38:54 BoogieIcfgContainer [2021-10-28 09:38:54,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:38:54,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:38:54,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:38:54,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:38:54,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:38:53" (1/3) ... [2021-10-28 09:38:54,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce6c5d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:38:54, skipping insertion in model container [2021-10-28 09:38:54,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:54" (2/3) ... [2021-10-28 09:38:54,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce6c5d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:38:54, skipping insertion in model container [2021-10-28 09:38:54,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:38:54" (3/3) ... [2021-10-28 09:38:54,652 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2021-10-28 09:38:54,658 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:38:54,658 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-28 09:38:54,758 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:38:54,764 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 09:38:54,764 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-28 09:38:54,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 51 states have (on average 1.9215686274509804) internal successors, (98), 53 states have internal predecessors, (98), 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 09:38:54,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 09:38:54,808 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:54,809 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:38:54,810 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr1ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr1ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:54,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:54,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1951284751, now seen corresponding path program 1 times [2021-10-28 09:38:54,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:38:54,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241947222] [2021-10-28 09:38:54,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:54,837 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:38:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:55,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:38:55,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:55,125 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 09:38:55,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:38:55,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241947222] [2021-10-28 09:38:55,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241947222] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:55,127 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:55,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:38:55,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873484344] [2021-10-28 09:38:55,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:38:55,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:38:55,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:38:55,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:38:55,163 INFO L87 Difference]: Start difference. First operand has 58 states, 51 states have (on average 1.9215686274509804) internal successors, (98), 53 states have internal predecessors, (98), 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, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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 09:38:55,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:55,232 INFO L93 Difference]: Finished difference Result 57 states and 98 transitions. [2021-10-28 09:38:55,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:38:55,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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 9 [2021-10-28 09:38:55,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:55,254 INFO L225 Difference]: With dead ends: 57 [2021-10-28 09:38:55,255 INFO L226 Difference]: Without dead ends: 52 [2021-10-28 09:38:55,258 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 09:38:55,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-28 09:38:55,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-28 09:38:55,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.875) internal successors, (90), 48 states have internal predecessors, (90), 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 09:38:55,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 93 transitions. [2021-10-28 09:38:55,308 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 93 transitions. Word has length 9 [2021-10-28 09:38:55,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:55,308 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 93 transitions. [2021-10-28 09:38:55,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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 09:38:55,308 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 93 transitions. [2021-10-28 09:38:55,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:38:55,309 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:55,310 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:38:55,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:38:55,310 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr1ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:55,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:55,311 INFO L85 PathProgramCache]: Analyzing trace with hash -15473136, now seen corresponding path program 1 times [2021-10-28 09:38:55,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:38:55,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066127746] [2021-10-28 09:38:55,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:55,312 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:38:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:55,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:38:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:55,520 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 09:38:55,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:38:55,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066127746] [2021-10-28 09:38:55,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066127746] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:55,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:55,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:38:55,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436247458] [2021-10-28 09:38:55,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:38:55,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:38:55,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:38:55,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:38:55,531 INFO L87 Difference]: Start difference. First operand 52 states and 93 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 09:38:55,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:55,838 INFO L93 Difference]: Finished difference Result 97 states and 176 transitions. [2021-10-28 09:38:55,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:38:55,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 25 [2021-10-28 09:38:55,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:55,850 INFO L225 Difference]: With dead ends: 97 [2021-10-28 09:38:55,850 INFO L226 Difference]: Without dead ends: 97 [2021-10-28 09:38:55,851 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:38:55,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-10-28 09:38:55,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2021-10-28 09:38:55,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 91 states have (on average 1.89010989010989) internal successors, (172), 91 states have internal predecessors, (172), 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 09:38:55,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 175 transitions. [2021-10-28 09:38:55,881 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 175 transitions. Word has length 25 [2021-10-28 09:38:55,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:55,882 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 175 transitions. [2021-10-28 09:38:55,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 09:38:55,883 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 175 transitions. [2021-10-28 09:38:55,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:38:55,884 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:55,885 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:38:55,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:38:55,886 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr1ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:55,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:55,887 INFO L85 PathProgramCache]: Analyzing trace with hash -15480328, now seen corresponding path program 1 times [2021-10-28 09:38:55,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:38:55,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629750999] [2021-10-28 09:38:55,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:55,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:38:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:56,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:38:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:56,023 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 09:38:56,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:38:56,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629750999] [2021-10-28 09:38:56,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629750999] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:56,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:56,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:38:56,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925528242] [2021-10-28 09:38:56,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:38:56,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:38:56,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:38:56,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:38:56,027 INFO L87 Difference]: Start difference. First operand 95 states and 175 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 09:38:56,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:56,213 INFO L93 Difference]: Finished difference Result 96 states and 176 transitions. [2021-10-28 09:38:56,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:38:56,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 25 [2021-10-28 09:38:56,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:56,215 INFO L225 Difference]: With dead ends: 96 [2021-10-28 09:38:56,215 INFO L226 Difference]: Without dead ends: 96 [2021-10-28 09:38:56,216 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:38:56,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-10-28 09:38:56,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-10-28 09:38:56,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 92 states have (on average 1.8804347826086956) internal successors, (173), 92 states have internal predecessors, (173), 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 09:38:56,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 176 transitions. [2021-10-28 09:38:56,228 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 176 transitions. Word has length 25 [2021-10-28 09:38:56,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:56,228 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 176 transitions. [2021-10-28 09:38:56,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 09:38:56,229 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 176 transitions. [2021-10-28 09:38:56,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:38:56,230 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:56,230 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:38:56,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 09:38:56,231 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr1ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:38:56,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:56,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1603821038, now seen corresponding path program 1 times [2021-10-28 09:38:56,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:38:56,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054601411] [2021-10-28 09:38:56,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:56,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:38:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:56,281 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:38:56,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:56,369 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:38:56,369 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:38:56,370 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-28 09:38:56,372 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 09:38:56,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 09:38:56,377 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-10-28 09:38:56,380 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:38:56,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:38:56 BoogieIcfgContainer [2021-10-28 09:38:56,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:38:56,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:38:56,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:38:56,438 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:38:56,439 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:38:54" (3/4) ... [2021-10-28 09:38:56,442 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:38:56,443 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:38:56,445 INFO L168 Benchmark]: Toolchain (without parser) took 2588.07 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 60.9 MB in the beginning and 52.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:38:56,446 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 102.8 MB. Free memory is still 77.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:38:56,447 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.31 ms. Allocated memory is still 102.8 MB. Free memory was 60.7 MB in the beginning and 75.6 MB in the end (delta: -14.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:38:56,447 INFO L168 Benchmark]: Boogie Preprocessor took 71.72 ms. Allocated memory is still 102.8 MB. Free memory was 75.6 MB in the beginning and 73.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:38:56,448 INFO L168 Benchmark]: RCFGBuilder took 393.10 ms. Allocated memory is still 102.8 MB. Free memory was 73.5 MB in the beginning and 59.7 MB in the end (delta: 13.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:38:56,449 INFO L168 Benchmark]: TraceAbstraction took 1805.78 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 59.1 MB in the beginning and 52.9 MB in the end (delta: 6.2 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:38:56,450 INFO L168 Benchmark]: Witness Printer took 4.90 ms. Allocated memory is still 123.7 MB. Free memory was 52.9 MB in the beginning and 52.1 MB in the end (delta: 815.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:38:56,454 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 102.8 MB. Free memory is still 77.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 304.31 ms. Allocated memory is still 102.8 MB. Free memory was 60.7 MB in the beginning and 75.6 MB in the end (delta: -14.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.72 ms. Allocated memory is still 102.8 MB. Free memory was 75.6 MB in the beginning and 73.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 393.10 ms. Allocated memory is still 102.8 MB. Free memory was 73.5 MB in the beginning and 59.7 MB in the end (delta: 13.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1805.78 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 59.1 MB in the beginning and 52.9 MB in the end (delta: 6.2 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.90 ms. Allocated memory is still 123.7 MB. Free memory was 52.9 MB in the beginning and 52.1 MB in the end (delta: 815.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * 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: 219]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 219. Possible FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L51] int cond; VAL [p1=0, p10=0, p11=1, p12=-1, p13=1, p14=1, p2=0, p3=-2, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=1, p12=-1, p13=1, p14=1, p2=0, p3=-2, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L88] COND FALSE !(p1 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=1, p12=-1, p13=1, p14=1, p2=0, p3=-2, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L92] COND FALSE !(p2 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=1, p12=-1, p13=1, p14=1, p2=0, p3=-2, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L96] COND TRUE p3 != 0 [L97] lk3 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=1, p12=-1, p13=1, p14=1, p2=0, p3=-2, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L100] COND TRUE p4 != 0 [L101] lk4 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=1, p12=-1, p13=1, p14=1, p2=0, p3=-2, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L104] COND TRUE p5 != 0 [L105] lk5 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=1, p12=-1, p13=1, p14=1, p2=0, p3=-2, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L108] COND TRUE p6 != 0 [L109] lk6 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=1, p12=-1, p13=1, p14=1, p2=0, p3=-2, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L112] COND TRUE p7 != 0 [L113] lk7 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p10=0, p11=1, p12=-1, p13=1, p14=1, p2=0, p3=-2, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L116] COND TRUE p8 != 0 [L117] lk8 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p10=0, p11=1, p12=-1, p13=1, p14=1, p2=0, p3=-2, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L120] COND TRUE p9 != 0 [L121] lk9 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=1, p12=-1, p13=1, p14=1, p2=0, p3=-2, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L124] COND FALSE !(p10 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=1, p12=-1, p13=1, p14=1, p2=0, p3=-2, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L128] COND TRUE p11 != 0 [L129] lk11 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=1, p12=-1, p13=1, p14=1, p2=0, p3=-2, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L132] COND TRUE p12 != 0 [L133] lk12 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=1, p12=-1, p13=1, p14=1, p2=0, p3=-2, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L136] COND TRUE p13 != 0 [L137] lk13 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=1, p12=-1, p13=1, p14=1, p2=0, p3=-2, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L140] COND TRUE p14 != 0 [L141] lk14 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=1, p12=-1, p13=1, p14=1, p2=0, p3=-2, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L146] COND FALSE !(p1 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=1, p12=-1, p13=1, p14=1, p2=0, p3=-2, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L151] COND FALSE !(p2 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=1, p12=-1, p13=1, p14=1, p2=0, p3=-2, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L219] reach_error() VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=1, p12=-1, p13=1, p14=1, p2=0, p3=-2, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] - UnprovableResult [Line: 6]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 61 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 333 SDtfs, 406 SDslu, 15 SDs, 0 SdLazy, 183 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=3, InterpolantAutomatonStates: 11, 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, 0.3s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 218 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 09:38:56,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/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 09:38:59,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:38:59,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:38:59,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:38:59,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:38:59,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:38:59,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:38:59,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:38:59,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:38:59,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:38:59,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:38:59,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:38:59,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:38:59,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:38:59,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:38:59,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:38:59,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:38:59,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:38:59,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:38:59,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:38:59,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:38:59,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:38:59,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:38:59,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:38:59,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:38:59,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:38:59,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:38:59,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:38:59,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:38:59,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:38:59,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:38:59,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:38:59,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:38:59,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:38:59,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:38:59,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:38:59,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:38:59,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:38:59,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:38:59,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:38:59,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:38:59,484 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 09:38:59,520 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:38:59,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:38:59,521 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:38:59,522 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:38:59,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:38:59,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:38:59,524 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:38:59,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:38:59,525 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:38:59,525 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:38:59,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:38:59,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:38:59,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:38:59,527 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:38:59,527 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:38:59,528 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:38:59,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:38:59,528 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:38:59,528 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 09:38:59,528 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 09:38:59,529 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:38:59,529 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:38:59,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:38:59,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:38:59,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:38:59,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:38:59,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:38:59,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:38:59,531 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 09:38:59,531 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 09:38:59,531 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:38:59,532 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 09:38:59,532 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_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c [2021-10-28 09:38:59,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:38:59,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:38:59,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:38:59,987 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:38:59,988 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:38:59,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/locks/test_locks_14-2.c [2021-10-28 09:39:00,072 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/data/8bc03709e/12ca1adf5bc046698ae2d13d6fe4648a/FLAG45b09835c [2021-10-28 09:39:00,669 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:39:00,669 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/sv-benchmarks/c/locks/test_locks_14-2.c [2021-10-28 09:39:00,686 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/data/8bc03709e/12ca1adf5bc046698ae2d13d6fe4648a/FLAG45b09835c [2021-10-28 09:39:01,054 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/data/8bc03709e/12ca1adf5bc046698ae2d13d6fe4648a [2021-10-28 09:39:01,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:39:01,059 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:39:01,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:39:01,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:39:01,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:39:01,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:39:01" (1/1) ... [2021-10-28 09:39:01,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bb64c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:01, skipping insertion in model container [2021-10-28 09:39:01,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:39:01" (1/1) ... [2021-10-28 09:39:01,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:39:01,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:39:01,293 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2021-10-28 09:39:01,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:39:01,323 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:39:01,353 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2021-10-28 09:39:01,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:39:01,370 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:39:01,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:01 WrapperNode [2021-10-28 09:39:01,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:39:01,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:39:01,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:39:01,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:39:01,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:01" (1/1) ... [2021-10-28 09:39:01,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:01" (1/1) ... [2021-10-28 09:39:01,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:01" (1/1) ... [2021-10-28 09:39:01,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:01" (1/1) ... [2021-10-28 09:39:01,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:01" (1/1) ... [2021-10-28 09:39:01,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:01" (1/1) ... [2021-10-28 09:39:01,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:01" (1/1) ... [2021-10-28 09:39:01,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:39:01,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:39:01,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:39:01,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:39:01,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:01" (1/1) ... [2021-10-28 09:39:01,432 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:39:01,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:01,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:01,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:39:01,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 09:39:01,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:39:01,530 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-28 09:39:01,530 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 09:39:01,531 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 09:39:01,531 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-28 09:39:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-28 09:39:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:39:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 09:39:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 09:39:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 09:39:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 09:39:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:39:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-28 09:39:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-28 09:39:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:39:02,103 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:39:02,103 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 09:39:02,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:39:02 BoogieIcfgContainer [2021-10-28 09:39:02,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:39:02,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:39:02,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:39:02,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:39:02,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:39:01" (1/3) ... [2021-10-28 09:39:02,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60351d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:39:02, skipping insertion in model container [2021-10-28 09:39:02,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:01" (2/3) ... [2021-10-28 09:39:02,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60351d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:39:02, skipping insertion in model container [2021-10-28 09:39:02,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:39:02" (3/3) ... [2021-10-28 09:39:02,115 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2021-10-28 09:39:02,121 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:39:02,121 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-28 09:39:02,168 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:39:02,180 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 09:39:02,181 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-28 09:39:02,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 51 states have (on average 1.9215686274509804) internal successors, (98), 53 states have internal predecessors, (98), 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 09:39:02,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 09:39:02,212 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:02,213 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:39:02,214 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr1ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr1ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:02,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:02,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1951284751, now seen corresponding path program 1 times [2021-10-28 09:39:02,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:02,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715312668] [2021-10-28 09:39:02,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:02,241 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:02,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:02,246 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:02,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 09:39:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:02,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 09:39:02,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:02,491 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 09:39:02,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:02,530 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 09:39:02,532 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:02,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715312668] [2021-10-28 09:39:02,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715312668] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:02,534 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:02,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 09:39:02,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437226087] [2021-10-28 09:39:02,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:39:02,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:02,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:39:02,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:39:02,562 INFO L87 Difference]: Start difference. First operand has 58 states, 51 states have (on average 1.9215686274509804) internal successors, (98), 53 states have internal predecessors, (98), 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 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 09:39:02,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:02,583 INFO L93 Difference]: Finished difference Result 57 states and 98 transitions. [2021-10-28 09:39:02,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:39:02,585 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 9 [2021-10-28 09:39:02,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:02,596 INFO L225 Difference]: With dead ends: 57 [2021-10-28 09:39:02,596 INFO L226 Difference]: Without dead ends: 52 [2021-10-28 09:39:02,598 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:39:02,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-28 09:39:02,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-28 09:39:02,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.875) internal successors, (90), 48 states have internal predecessors, (90), 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 09:39:02,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 93 transitions. [2021-10-28 09:39:02,638 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 93 transitions. Word has length 9 [2021-10-28 09:39:02,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:02,639 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 93 transitions. [2021-10-28 09:39:02,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 09:39:02,640 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 93 transitions. [2021-10-28 09:39:02,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:39:02,641 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:02,641 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:39:02,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:02,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:02,854 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr1ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:02,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:02,855 INFO L85 PathProgramCache]: Analyzing trace with hash -15473136, now seen corresponding path program 1 times [2021-10-28 09:39:02,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:02,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1804524979] [2021-10-28 09:39:02,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:02,858 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:02,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:02,859 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:02,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 09:39:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:02,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:39:02,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:03,165 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 09:39:03,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:03,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:03,324 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:03,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1804524979] [2021-10-28 09:39:03,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1804524979] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:03,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:03,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 09:39:03,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375519346] [2021-10-28 09:39:03,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:39:03,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:03,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:39:03,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:39:03,329 INFO L87 Difference]: Start difference. First operand 52 states and 93 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 09:39:03,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:03,364 INFO L93 Difference]: Finished difference Result 97 states and 176 transitions. [2021-10-28 09:39:03,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:39:03,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 25 [2021-10-28 09:39:03,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:03,367 INFO L225 Difference]: With dead ends: 97 [2021-10-28 09:39:03,367 INFO L226 Difference]: Without dead ends: 97 [2021-10-28 09:39:03,368 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 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 09:39:03,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-10-28 09:39:03,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2021-10-28 09:39:03,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 91 states have (on average 1.89010989010989) internal successors, (172), 91 states have internal predecessors, (172), 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 09:39:03,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 175 transitions. [2021-10-28 09:39:03,386 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 175 transitions. Word has length 25 [2021-10-28 09:39:03,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:03,387 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 175 transitions. [2021-10-28 09:39:03,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 09:39:03,387 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 175 transitions. [2021-10-28 09:39:03,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:39:03,389 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:03,389 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:39:03,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:03,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:03,611 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr1ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:03,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:03,612 INFO L85 PathProgramCache]: Analyzing trace with hash -15480328, now seen corresponding path program 1 times [2021-10-28 09:39:03,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:03,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [301601920] [2021-10-28 09:39:03,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:03,613 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:03,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:03,615 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:03,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 09:39:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:03,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:39:03,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:03,855 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 09:39:03,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:03,982 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 09:39:03,983 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:03,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [301601920] [2021-10-28 09:39:03,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [301601920] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:03,983 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:03,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 09:39:03,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973096000] [2021-10-28 09:39:03,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:39:03,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:03,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:39:03,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:39:03,991 INFO L87 Difference]: Start difference. First operand 95 states and 175 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 09:39:04,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:04,029 INFO L93 Difference]: Finished difference Result 96 states and 176 transitions. [2021-10-28 09:39:04,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:39:04,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 25 [2021-10-28 09:39:04,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:39:04,032 INFO L225 Difference]: With dead ends: 96 [2021-10-28 09:39:04,035 INFO L226 Difference]: Without dead ends: 96 [2021-10-28 09:39:04,036 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 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 09:39:04,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-10-28 09:39:04,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-10-28 09:39:04,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 92 states have (on average 1.8804347826086956) internal successors, (173), 92 states have internal predecessors, (173), 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 09:39:04,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 176 transitions. [2021-10-28 09:39:04,060 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 176 transitions. Word has length 25 [2021-10-28 09:39:04,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:39:04,061 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 176 transitions. [2021-10-28 09:39:04,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 09:39:04,061 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 176 transitions. [2021-10-28 09:39:04,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:39:04,064 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:39:04,064 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:39:04,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:04,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:04,279 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr1ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:39:04,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:04,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1603821038, now seen corresponding path program 1 times [2021-10-28 09:39:04,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:39:04,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696875725] [2021-10-28 09:39:04,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:04,280 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:39:04,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:39:04,282 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:39:04,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 09:39:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:39:04,414 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:39:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:39:04,518 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 09:39:04,518 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:39:04,519 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-28 09:39:04,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 09:39:04,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:04,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:39:04,736 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-10-28 09:39:04,739 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:39:04,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:39:04 BoogieIcfgContainer [2021-10-28 09:39:04,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:39:04,792 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:39:04,792 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:39:04,792 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:39:04,793 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:39:02" (3/4) ... [2021-10-28 09:39:04,796 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:39:04,796 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:39:04,798 INFO L168 Benchmark]: Toolchain (without parser) took 3738.25 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 33.9 MB in the beginning and 31.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:39:04,798 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 56.6 MB. Free memory is still 36.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:39:04,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.74 ms. Allocated memory is still 56.6 MB. Free memory was 33.7 MB in the beginning and 36.4 MB in the end (delta: -2.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:39:04,799 INFO L168 Benchmark]: Boogie Preprocessor took 48.28 ms. Allocated memory is still 56.6 MB. Free memory was 36.4 MB in the beginning and 34.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:39:04,800 INFO L168 Benchmark]: RCFGBuilder took 684.53 ms. Allocated memory is still 56.6 MB. Free memory was 34.3 MB in the beginning and 33.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:39:04,801 INFO L168 Benchmark]: TraceAbstraction took 2684.01 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 32.7 MB in the beginning and 31.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:39:04,801 INFO L168 Benchmark]: Witness Printer took 4.16 ms. Allocated memory is still 71.3 MB. Free memory was 31.6 MB in the beginning and 31.2 MB in the end (delta: 362.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:39:04,804 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 56.6 MB. Free memory is still 36.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 310.74 ms. Allocated memory is still 56.6 MB. Free memory was 33.7 MB in the beginning and 36.4 MB in the end (delta: -2.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.28 ms. Allocated memory is still 56.6 MB. Free memory was 36.4 MB in the beginning and 34.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 684.53 ms. Allocated memory is still 56.6 MB. Free memory was 34.3 MB in the beginning and 33.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2684.01 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 32.7 MB in the beginning and 31.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.16 ms. Allocated memory is still 71.3 MB. Free memory was 31.6 MB in the beginning and 31.2 MB in the end (delta: 362.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * 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: 219]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 219. Possible FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L51] int cond; VAL [p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483648, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483648, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L88] COND FALSE !(p1 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483648, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L92] COND FALSE !(p2 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483648, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L96] COND TRUE p3 != 0 [L97] lk3 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483648, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L100] COND TRUE p4 != 0 [L101] lk4 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483648, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L104] COND TRUE p5 != 0 [L105] lk5 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483648, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L108] COND TRUE p6 != 0 [L109] lk6 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483648, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L112] COND TRUE p7 != 0 [L113] lk7 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483648, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L116] COND TRUE p8 != 0 [L117] lk8 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483648, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L120] COND TRUE p9 != 0 [L121] lk9 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483648, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L124] COND FALSE !(p10 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483648, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L128] COND TRUE p11 != 0 [L129] lk11 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=1, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483648, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L132] COND TRUE p12 != 0 [L133] lk12 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=1, lk12=1, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483648, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L136] COND TRUE p13 != 0 [L137] lk13 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483648, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L140] COND TRUE p14 != 0 [L141] lk14 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483648, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L146] COND FALSE !(p1 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483648, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L151] COND FALSE !(p2 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483648, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L219] reach_error() VAL [cond=2147483648, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483648, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] - UnprovableResult [Line: 6]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 61 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 336 SDtfs, 84 SDslu, 174 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=3, InterpolantAutomatonStates: 8, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 276 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 09:39:04,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2361eed7-8152-4e6a-ac77-a421fee958f1/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...