./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 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_14-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt --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 7dd19b8066311da8c1eb1c6a0e6567bb02c0b787 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_14-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt --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 7dd19b8066311da8c1eb1c6a0e6567bb02c0b787 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:07:24,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:07:24,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:07:24,457 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:07:24,458 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:07:24,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:07:24,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:07:24,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:07:24,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:07:24,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:07:24,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:07:24,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:07:24,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:07:24,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:07:24,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:07:24,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:07:24,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:07:24,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:07:24,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:07:24,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:07:24,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:07:24,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:07:24,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:07:24,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:07:24,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:07:24,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:07:24,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:07:24,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:07:24,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:07:24,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:07:24,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:07:24,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:07:24,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:07:24,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:07:24,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:07:24,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:07:24,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:07:24,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:07:24,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:07:24,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:07:24,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:07:24,506 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-13 00:07:24,531 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:07:24,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:07:24,531 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:07:24,532 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:07:24,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:07:24,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:07:24,533 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:07:24,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:07:24,533 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:07:24,534 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:07:24,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:07:24,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:07:24,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:07:24,534 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:07:24,534 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:07:24,535 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 00:07:24,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:07:24,535 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:07:24,535 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:07:24,535 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:07:24,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:07:24,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:07:24,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:07:24,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:07:24,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:07:24,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:07:24,537 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:07:24,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:07:24,537 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:07:24,537 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_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dd19b8066311da8c1eb1c6a0e6567bb02c0b787 [2021-10-13 00:07:24,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:07:24,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:07:24,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:07:24,814 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:07:24,815 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:07:24,816 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/locks/test_locks_14-2.c [2021-10-13 00:07:24,882 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/data/19f6986b9/353ec74116304ac0915da27694b6387a/FLAG0c0e3f1a5 [2021-10-13 00:07:25,282 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:07:25,282 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/sv-benchmarks/c/locks/test_locks_14-2.c [2021-10-13 00:07:25,291 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/data/19f6986b9/353ec74116304ac0915da27694b6387a/FLAG0c0e3f1a5 [2021-10-13 00:07:25,689 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/data/19f6986b9/353ec74116304ac0915da27694b6387a [2021-10-13 00:07:25,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:07:25,693 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:07:25,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:07:25,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:07:25,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:07:25,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:07:25" (1/1) ... [2021-10-13 00:07:25,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54742505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:25, skipping insertion in model container [2021-10-13 00:07:25,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:07:25" (1/1) ... [2021-10-13 00:07:25,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:07:25,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:07:25,915 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_0232b22d-5be1-4339-abd8-c1786765696b/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2021-10-13 00:07:25,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:07:25,926 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:07:25,955 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_0232b22d-5be1-4339-abd8-c1786765696b/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2021-10-13 00:07:25,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:07:25,969 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:07:25,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:25 WrapperNode [2021-10-13 00:07:25,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:07:25,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:07:25,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:07:25,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:07:25,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:25" (1/1) ... [2021-10-13 00:07:25,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:25" (1/1) ... [2021-10-13 00:07:25,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:25" (1/1) ... [2021-10-13 00:07:25,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:25" (1/1) ... [2021-10-13 00:07:25,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:25" (1/1) ... [2021-10-13 00:07:26,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:25" (1/1) ... [2021-10-13 00:07:26,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:25" (1/1) ... [2021-10-13 00:07:26,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:07:26,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:07:26,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:07:26,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:07:26,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:25" (1/1) ... [2021-10-13 00:07:26,020 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:07:26,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:26,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:26,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:07:26,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-13 00:07:26,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:07:26,119 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-13 00:07:26,120 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-13 00:07:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-13 00:07:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-13 00:07:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-13 00:07:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:07:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-13 00:07:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-13 00:07:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-13 00:07:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:07:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:07:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:07:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 00:07:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:07:26,468 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:07:26,469 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-13 00:07:26,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:07:26 BoogieIcfgContainer [2021-10-13 00:07:26,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:07:26,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:07:26,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:07:26,476 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:07:26,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:07:25" (1/3) ... [2021-10-13 00:07:26,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d17b4c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:07:26, skipping insertion in model container [2021-10-13 00:07:26,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:25" (2/3) ... [2021-10-13 00:07:26,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d17b4c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:07:26, skipping insertion in model container [2021-10-13 00:07:26,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:07:26" (3/3) ... [2021-10-13 00:07:26,479 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2021-10-13 00:07:26,484 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:07:26,485 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-13 00:07:26,527 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:07:26,533 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, mConcurrency=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 [2021-10-13 00:07:26,533 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-13 00:07:26,552 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) [2021-10-13 00:07:26,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 00:07:26,571 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:07:26,572 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:07:26,572 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr1ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr1ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-13 00:07:26,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:26,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1951284751, now seen corresponding path program 1 times [2021-10-13 00:07:26,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:26,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281134782] [2021-10-13 00:07:26,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:26,604 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:26,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:07:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:26,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:26,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:07:26,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281134782] [2021-10-13 00:07:26,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281134782] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:07:26,812 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:07:26,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:07:26,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103949986] [2021-10-13 00:07:26,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:07:26,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:07:26,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:07:26,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:07:26,850 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) [2021-10-13 00:07:26,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:07:26,916 INFO L93 Difference]: Finished difference Result 57 states and 98 transitions. [2021-10-13 00:07:26,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:07:26,920 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 [2021-10-13 00:07:26,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:07:26,932 INFO L225 Difference]: With dead ends: 57 [2021-10-13 00:07:26,933 INFO L226 Difference]: Without dead ends: 52 [2021-10-13 00:07:26,936 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:07:26,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-13 00:07:26,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-13 00:07:26,975 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) [2021-10-13 00:07:26,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 93 transitions. [2021-10-13 00:07:26,981 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 93 transitions. Word has length 9 [2021-10-13 00:07:26,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:07:26,981 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 93 transitions. [2021-10-13 00:07:26,982 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) [2021-10-13 00:07:26,982 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 93 transitions. [2021-10-13 00:07:26,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 00:07:26,983 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:07:26,984 INFO L512 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] [2021-10-13 00:07:26,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:07:26,985 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr1ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-13 00:07:26,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:26,986 INFO L82 PathProgramCache]: Analyzing trace with hash -15473136, now seen corresponding path program 1 times [2021-10-13 00:07:26,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:26,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385859257] [2021-10-13 00:07:26,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:26,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:27,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:07:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:27,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:27,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:07:27,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385859257] [2021-10-13 00:07:27,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385859257] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:07:27,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:07:27,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:07:27,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372304409] [2021-10-13 00:07:27,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:07:27,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:07:27,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:07:27,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:07:27,241 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) [2021-10-13 00:07:27,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:07:27,515 INFO L93 Difference]: Finished difference Result 97 states and 176 transitions. [2021-10-13 00:07:27,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:07:27,516 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 [2021-10-13 00:07:27,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:07:27,518 INFO L225 Difference]: With dead ends: 97 [2021-10-13 00:07:27,518 INFO L226 Difference]: Without dead ends: 97 [2021-10-13 00:07:27,518 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 59.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:07:27,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-10-13 00:07:27,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2021-10-13 00:07:27,529 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) [2021-10-13 00:07:27,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 175 transitions. [2021-10-13 00:07:27,532 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 175 transitions. Word has length 25 [2021-10-13 00:07:27,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:07:27,533 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 175 transitions. [2021-10-13 00:07:27,533 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) [2021-10-13 00:07:27,534 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 175 transitions. [2021-10-13 00:07:27,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 00:07:27,535 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:07:27,535 INFO L512 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] [2021-10-13 00:07:27,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:07:27,536 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr1ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-13 00:07:27,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:27,536 INFO L82 PathProgramCache]: Analyzing trace with hash -15480328, now seen corresponding path program 1 times [2021-10-13 00:07:27,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:27,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532170988] [2021-10-13 00:07:27,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:27,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:27,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:07:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:27,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:27,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:07:27,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532170988] [2021-10-13 00:07:27,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532170988] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:07:27,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:07:27,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:07:27,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320881237] [2021-10-13 00:07:27,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:07:27,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:07:27,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:07:27,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:07:27,648 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) [2021-10-13 00:07:27,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:07:27,857 INFO L93 Difference]: Finished difference Result 96 states and 176 transitions. [2021-10-13 00:07:27,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:07:27,857 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 [2021-10-13 00:07:27,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:07:27,861 INFO L225 Difference]: With dead ends: 96 [2021-10-13 00:07:27,862 INFO L226 Difference]: Without dead ends: 96 [2021-10-13 00:07:27,862 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:07:27,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-10-13 00:07:27,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-10-13 00:07:27,883 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) [2021-10-13 00:07:27,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 176 transitions. [2021-10-13 00:07:27,888 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 176 transitions. Word has length 25 [2021-10-13 00:07:27,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:07:27,888 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 176 transitions. [2021-10-13 00:07:27,888 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) [2021-10-13 00:07:27,889 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 176 transitions. [2021-10-13 00:07:27,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 00:07:27,890 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:07:27,890 INFO L512 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] [2021-10-13 00:07:27,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:07:27,890 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr1ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-13 00:07:27,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:27,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1603821038, now seen corresponding path program 1 times [2021-10-13 00:07:27,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:27,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760476921] [2021-10-13 00:07:27,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:27,892 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:27,955 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:28,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:28,029 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:28,029 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:07:28,030 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 00:07:28,032 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1ENSURES_VIOLATIONMEMORY_LEAK [2021-10-13 00:07:28,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:07:28,038 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:07:28,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:07:28 BoogieIcfgContainer [2021-10-13 00:07:28,098 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:07:28,098 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:07:28,098 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:07:28,099 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:07:28,099 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:07:26" (3/4) ... [2021-10-13 00:07:28,102 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:07:28,108 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:07:28,112 INFO L168 Benchmark]: Toolchain (without parser) took 2416.61 ms. Allocated memory was 113.2 MB in the beginning and 148.9 MB in the end (delta: 35.7 MB). Free memory was 76.9 MB in the beginning and 81.8 MB in the end (delta: -5.0 MB). Peak memory consumption was 30.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:07:28,113 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 113.2 MB. Free memory was 83.3 MB in the beginning and 83.3 MB in the end (delta: 21.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:07:28,113 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.14 ms. Allocated memory is still 113.2 MB. Free memory was 76.9 MB in the beginning and 84.9 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:07:28,114 INFO L168 Benchmark]: Boogie Preprocessor took 39.79 ms. Allocated memory is still 113.2 MB. Free memory was 84.9 MB in the beginning and 82.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:07:28,114 INFO L168 Benchmark]: RCFGBuilder took 459.60 ms. Allocated memory is still 113.2 MB. Free memory was 82.9 MB in the beginning and 68.9 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:07:28,115 INFO L168 Benchmark]: TraceAbstraction took 1625.61 ms. Allocated memory was 113.2 MB in the beginning and 148.9 MB in the end (delta: 35.7 MB). Free memory was 68.2 MB in the beginning and 81.8 MB in the end (delta: -13.6 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:07:28,116 INFO L168 Benchmark]: Witness Printer took 10.16 ms. Allocated memory is still 148.9 MB. Free memory is still 81.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:07:28,119 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 113.2 MB. Free memory was 83.3 MB in the beginning and 83.3 MB in the end (delta: 21.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 256.14 ms. Allocated memory is still 113.2 MB. Free memory was 76.9 MB in the beginning and 84.9 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.79 ms. Allocated memory is still 113.2 MB. Free memory was 84.9 MB in the beginning and 82.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 459.60 ms. Allocated memory is still 113.2 MB. Free memory was 82.9 MB in the beginning and 68.9 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1625.61 ms. Allocated memory was 113.2 MB in the beginning and 148.9 MB in the end (delta: 35.7 MB). Free memory was 68.2 MB in the beginning and 81.8 MB in the end (delta: -13.6 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. * Witness Printer took 10.16 ms. Allocated memory is still 148.9 MB. Free memory is still 81.8 MB. 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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: 1511.6ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 28.9ms, AutomataDifference: 600.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 333 SDtfs, 406 SDslu, 15 SDs, 0 SdLazy, 183 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 326.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 140.6ms Time, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: 70.9ms AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 29.0ms SsaConstructionTime, 181.4ms SatisfiabilityAnalysisTime, 352.2ms 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 [2021-10-13 00:07:28,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:07:30,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:07:30,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:07:30,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:07:30,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:07:30,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:07:30,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:07:30,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:07:30,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:07:30,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:07:30,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:07:30,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:07:30,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:07:30,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:07:30,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:07:30,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:07:30,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:07:30,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:07:30,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:07:30,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:07:30,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:07:30,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:07:30,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:07:30,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:07:30,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:07:30,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:07:30,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:07:30,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:07:30,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:07:30,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:07:30,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:07:30,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:07:30,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:07:30,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:07:30,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:07:30,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:07:30,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:07:30,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:07:30,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:07:30,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:07:30,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:07:30,699 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-13 00:07:30,724 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:07:30,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:07:30,725 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:07:30,725 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:07:30,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:07:30,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:07:30,727 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:07:30,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:07:30,727 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:07:30,728 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:07:30,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:07:30,728 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:07:30,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:07:30,729 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:07:30,729 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:07:30,729 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 00:07:30,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:07:30,730 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:07:30,730 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 00:07:30,730 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 00:07:30,730 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:07:30,731 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:07:30,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:07:30,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:07:30,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:07:30,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:07:30,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:07:30,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:07:30,732 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 00:07:30,733 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 00:07:30,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:07:30,733 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 00:07:30,734 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_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dd19b8066311da8c1eb1c6a0e6567bb02c0b787 [2021-10-13 00:07:31,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:07:31,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:07:31,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:07:31,101 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:07:31,102 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:07:31,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/locks/test_locks_14-2.c [2021-10-13 00:07:31,167 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/data/f26294c80/3aa9dc2ec25d405d9f1aed447f44b0cd/FLAGa5579c70b [2021-10-13 00:07:31,684 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:07:31,691 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/sv-benchmarks/c/locks/test_locks_14-2.c [2021-10-13 00:07:31,701 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/data/f26294c80/3aa9dc2ec25d405d9f1aed447f44b0cd/FLAGa5579c70b [2021-10-13 00:07:32,002 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/data/f26294c80/3aa9dc2ec25d405d9f1aed447f44b0cd [2021-10-13 00:07:32,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:07:32,015 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:07:32,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:07:32,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:07:32,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:07:32,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:07:32" (1/1) ... [2021-10-13 00:07:32,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c410ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:32, skipping insertion in model container [2021-10-13 00:07:32,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:07:32" (1/1) ... [2021-10-13 00:07:32,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:07:32,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:07:32,280 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_0232b22d-5be1-4339-abd8-c1786765696b/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2021-10-13 00:07:32,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:07:32,313 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:07:32,347 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_0232b22d-5be1-4339-abd8-c1786765696b/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2021-10-13 00:07:32,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:07:32,367 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:07:32,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:32 WrapperNode [2021-10-13 00:07:32,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:07:32,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:07:32,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:07:32,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:07:32,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:32" (1/1) ... [2021-10-13 00:07:32,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:32" (1/1) ... [2021-10-13 00:07:32,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:32" (1/1) ... [2021-10-13 00:07:32,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:32" (1/1) ... [2021-10-13 00:07:32,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:32" (1/1) ... [2021-10-13 00:07:32,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:32" (1/1) ... [2021-10-13 00:07:32,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:32" (1/1) ... [2021-10-13 00:07:32,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:07:32,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:07:32,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:07:32,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:07:32,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:32" (1/1) ... [2021-10-13 00:07:32,454 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:07:32,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:32,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:32,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:07:32,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-13 00:07:32,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:07:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-13 00:07:32,532 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-13 00:07:32,532 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-13 00:07:32,532 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-13 00:07:32,534 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-13 00:07:32,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:07:32,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-13 00:07:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-13 00:07:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-13 00:07:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 00:07:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:07:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-13 00:07:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-13 00:07:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:07:33,007 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:07:33,007 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-13 00:07:33,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:07:33 BoogieIcfgContainer [2021-10-13 00:07:33,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:07:33,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:07:33,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:07:33,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:07:33,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:07:32" (1/3) ... [2021-10-13 00:07:33,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce1b224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:07:33, skipping insertion in model container [2021-10-13 00:07:33,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:32" (2/3) ... [2021-10-13 00:07:33,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce1b224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:07:33, skipping insertion in model container [2021-10-13 00:07:33,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:07:33" (3/3) ... [2021-10-13 00:07:33,016 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2021-10-13 00:07:33,022 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:07:33,022 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-13 00:07:33,066 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:07:33,073 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, mConcurrency=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 [2021-10-13 00:07:33,073 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-13 00:07:33,088 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) [2021-10-13 00:07:33,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 00:07:33,095 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:07:33,095 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:07:33,096 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr1ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr1ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-13 00:07:33,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:33,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1951284751, now seen corresponding path program 1 times [2021-10-13 00:07:33,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:07:33,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140202465] [2021-10-13 00:07:33,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:33,114 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:07:33,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:07:33,117 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:07:33,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 00:07:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:33,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 00:07:33,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:07:33,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:33,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:07:33,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:33,313 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:07:33,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2140202465] [2021-10-13 00:07:33,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2140202465] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:07:33,314 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:07:33,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 00:07:33,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789395488] [2021-10-13 00:07:33,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 00:07:33,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:07:33,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 00:07:33,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:07:33,336 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) [2021-10-13 00:07:33,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:07:33,354 INFO L93 Difference]: Finished difference Result 57 states and 98 transitions. [2021-10-13 00:07:33,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 00:07:33,356 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 [2021-10-13 00:07:33,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:07:33,364 INFO L225 Difference]: With dead ends: 57 [2021-10-13 00:07:33,364 INFO L226 Difference]: Without dead ends: 52 [2021-10-13 00:07:33,366 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:07:33,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-13 00:07:33,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-13 00:07:33,399 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) [2021-10-13 00:07:33,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 93 transitions. [2021-10-13 00:07:33,402 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 93 transitions. Word has length 9 [2021-10-13 00:07:33,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:07:33,403 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 93 transitions. [2021-10-13 00:07:33,403 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) [2021-10-13 00:07:33,403 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 93 transitions. [2021-10-13 00:07:33,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 00:07:33,404 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:07:33,404 INFO L512 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] [2021-10-13 00:07:33,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:33,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:07:33,621 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr1ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-13 00:07:33,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:33,626 INFO L82 PathProgramCache]: Analyzing trace with hash -15473136, now seen corresponding path program 1 times [2021-10-13 00:07:33,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:07:33,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [868747201] [2021-10-13 00:07:33,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:33,630 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:07:33,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:07:33,632 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:07:33,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 00:07:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:33,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:07:33,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:07:33,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:33,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:07:34,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:34,038 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:07:34,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [868747201] [2021-10-13 00:07:34,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [868747201] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:07:34,039 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:07:34,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 00:07:34,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885702069] [2021-10-13 00:07:34,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:07:34,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:07:34,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:07:34,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:07:34,049 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) [2021-10-13 00:07:34,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:07:34,099 INFO L93 Difference]: Finished difference Result 97 states and 176 transitions. [2021-10-13 00:07:34,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:07:34,100 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 [2021-10-13 00:07:34,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:07:34,108 INFO L225 Difference]: With dead ends: 97 [2021-10-13 00:07:34,109 INFO L226 Difference]: Without dead ends: 97 [2021-10-13 00:07:34,110 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:07:34,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-10-13 00:07:34,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2021-10-13 00:07:34,131 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) [2021-10-13 00:07:34,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 175 transitions. [2021-10-13 00:07:34,139 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 175 transitions. Word has length 25 [2021-10-13 00:07:34,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:07:34,140 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 175 transitions. [2021-10-13 00:07:34,140 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) [2021-10-13 00:07:34,140 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 175 transitions. [2021-10-13 00:07:34,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 00:07:34,141 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:07:34,141 INFO L512 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] [2021-10-13 00:07:34,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-13 00:07:34,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:07:34,342 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr1ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-13 00:07:34,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:34,343 INFO L82 PathProgramCache]: Analyzing trace with hash -15480328, now seen corresponding path program 1 times [2021-10-13 00:07:34,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:07:34,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489469592] [2021-10-13 00:07:34,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:34,343 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:07:34,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:07:34,345 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:07:34,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 00:07:34,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:34,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:07:34,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:07:34,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:34,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:07:34,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:34,680 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:07:34,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489469592] [2021-10-13 00:07:34,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489469592] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:07:34,681 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:07:34,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 00:07:34,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601592517] [2021-10-13 00:07:34,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:07:34,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:07:34,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:07:34,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:07:34,684 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) [2021-10-13 00:07:34,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:07:34,710 INFO L93 Difference]: Finished difference Result 96 states and 176 transitions. [2021-10-13 00:07:34,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:07:34,713 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 [2021-10-13 00:07:34,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:07:34,717 INFO L225 Difference]: With dead ends: 96 [2021-10-13 00:07:34,717 INFO L226 Difference]: Without dead ends: 96 [2021-10-13 00:07:34,718 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:07:34,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-10-13 00:07:34,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-10-13 00:07:34,731 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) [2021-10-13 00:07:34,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 176 transitions. [2021-10-13 00:07:34,733 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 176 transitions. Word has length 25 [2021-10-13 00:07:34,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:07:34,734 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 176 transitions. [2021-10-13 00:07:34,734 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) [2021-10-13 00:07:34,734 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 176 transitions. [2021-10-13 00:07:34,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 00:07:34,735 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:07:34,735 INFO L512 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] [2021-10-13 00:07:34,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:34,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:07:34,936 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr1ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-13 00:07:34,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:34,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1603821038, now seen corresponding path program 1 times [2021-10-13 00:07:34,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:07:34,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [117558756] [2021-10-13 00:07:34,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:34,938 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:07:34,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:07:34,939 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:07:34,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 00:07:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:35,069 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:35,171 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-13 00:07:35,171 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:07:35,172 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 00:07:35,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1ENSURES_VIOLATIONMEMORY_LEAK [2021-10-13 00:07:35,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:35,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:07:35,396 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:07:35,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:07:35 BoogieIcfgContainer [2021-10-13 00:07:35,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:07:35,457 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:07:35,457 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:07:35,457 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:07:35,458 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:07:33" (3/4) ... [2021-10-13 00:07:35,460 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:07:35,461 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:07:35,462 INFO L168 Benchmark]: Toolchain (without parser) took 3446.52 ms. Allocated memory was 69.2 MB in the beginning and 96.5 MB in the end (delta: 27.3 MB). Free memory was 51.8 MB in the beginning and 69.8 MB in the end (delta: -18.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:07:35,463 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 69.2 MB. Free memory is still 50.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:07:35,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.53 ms. Allocated memory is still 69.2 MB. Free memory was 51.8 MB in the beginning and 40.5 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:07:35,464 INFO L168 Benchmark]: Boogie Preprocessor took 69.67 ms. Allocated memory is still 69.2 MB. Free memory was 40.5 MB in the beginning and 38.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:07:35,465 INFO L168 Benchmark]: RCFGBuilder took 568.42 ms. Allocated memory is still 69.2 MB. Free memory was 38.5 MB in the beginning and 48.9 MB in the end (delta: -10.4 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:07:35,485 INFO L168 Benchmark]: TraceAbstraction took 2445.66 ms. Allocated memory was 69.2 MB in the beginning and 96.5 MB in the end (delta: 27.3 MB). Free memory was 48.3 MB in the beginning and 70.5 MB in the end (delta: -22.2 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:07:35,486 INFO L168 Benchmark]: Witness Printer took 3.90 ms. Allocated memory is still 96.5 MB. Free memory was 70.5 MB in the beginning and 69.8 MB in the end (delta: 677.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:07:35,489 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 69.2 MB. Free memory is still 50.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 352.53 ms. Allocated memory is still 69.2 MB. Free memory was 51.8 MB in the beginning and 40.5 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.67 ms. Allocated memory is still 69.2 MB. Free memory was 40.5 MB in the beginning and 38.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 568.42 ms. Allocated memory is still 69.2 MB. Free memory was 38.5 MB in the beginning and 48.9 MB in the end (delta: -10.4 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2445.66 ms. Allocated memory was 69.2 MB in the beginning and 96.5 MB in the end (delta: 27.3 MB). Free memory was 48.3 MB in the beginning and 70.5 MB in the end (delta: -22.2 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Witness Printer took 3.90 ms. Allocated memory is still 96.5 MB. Free memory was 70.5 MB in the beginning and 69.8 MB in the end (delta: 677.3 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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: 2330.5ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 13.6ms, AutomataDifference: 146.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 336 SDtfs, 84 SDslu, 174 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4ms Time, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: 66.5ms AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 89.8ms SsaConstructionTime, 191.7ms SatisfiabilityAnalysisTime, 589.9ms 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 [2021-10-13 00:07:35,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0232b22d-5be1-4339-abd8-c1786765696b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...