./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8 --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 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 15:12:09,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:12:09,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:12:09,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:12:09,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:12:09,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:12:09,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:12:09,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:12:09,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:12:09,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:12:09,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:12:09,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:12:09,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:12:09,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:12:09,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:12:09,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:12:09,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:12:09,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:12:09,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:12:09,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:12:09,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:12:09,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:12:09,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:12:09,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:12:09,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:12:09,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:12:09,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:12:09,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:12:09,883 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:12:09,884 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:12:09,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:12:09,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:12:09,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:12:09,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:12:09,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:12:09,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:12:09,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:12:09,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:12:09,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:12:09,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:12:09,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:12:09,888 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 15:12:09,901 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:12:09,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:12:09,902 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:12:09,902 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:12:09,902 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:12:09,902 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:12:09,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:12:09,903 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:12:09,903 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:12:09,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:12:09,903 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:12:09,903 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:12:09,903 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:12:09,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:12:09,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:12:09,903 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 15:12:09,904 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 15:12:09,904 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 15:12:09,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:12:09,904 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 15:12:09,904 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:12:09,904 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:12:09,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:12:09,904 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:12:09,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:12:09,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:12:09,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:12:09,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:12:09,905 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:12:09,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:12:09,905 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:12:09,905 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:12:09,905 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:12:09,905 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:12:09,905 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa [2022-12-13 15:12:10,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:12:10,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:12:10,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:12:10,092 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:12:10,093 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:12:10,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2022-12-13 15:12:12,696 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:12:12,874 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:12:12,874 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2022-12-13 15:12:12,882 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/data/b1633e97f/0722f62dc5ca46f4adbc13404e890dcc/FLAG177a94ff1 [2022-12-13 15:12:12,893 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/data/b1633e97f/0722f62dc5ca46f4adbc13404e890dcc [2022-12-13 15:12:12,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:12:12,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:12:12,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:12:12,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:12:12,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:12:12,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:12:12" (1/1) ... [2022-12-13 15:12:12,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac26aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:12, skipping insertion in model container [2022-12-13 15:12:12,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:12:12" (1/1) ... [2022-12-13 15:12:12,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:12:12,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:12:13,056 WARN L237 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_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2022-12-13 15:12:13,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:12:13,156 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:12:13,165 WARN L237 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_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2022-12-13 15:12:13,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:12:13,204 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:12:13,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:13 WrapperNode [2022-12-13 15:12:13,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:12:13,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:12:13,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:12:13,205 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:12:13,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:13" (1/1) ... [2022-12-13 15:12:13,219 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:13" (1/1) ... [2022-12-13 15:12:13,233 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-13 15:12:13,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:12:13,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:12:13,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:12:13,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:12:13,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:13" (1/1) ... [2022-12-13 15:12:13,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:13" (1/1) ... [2022-12-13 15:12:13,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:13" (1/1) ... [2022-12-13 15:12:13,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:13" (1/1) ... [2022-12-13 15:12:13,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:13" (1/1) ... [2022-12-13 15:12:13,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:13" (1/1) ... [2022-12-13 15:12:13,248 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:13" (1/1) ... [2022-12-13 15:12:13,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:13" (1/1) ... [2022-12-13 15:12:13,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:12:13,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:12:13,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:12:13,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:12:13,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:13" (1/1) ... [2022-12-13 15:12:13,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:12:13,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:12:13,274 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:12:13,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:12:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 15:12:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:12:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 15:12:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:12:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:12:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 15:12:13,310 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 15:12:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:12:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:12:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:12:13,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:12:13,312 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 15:12:13,415 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:12:13,417 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:12:13,556 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:12:13,562 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:12:13,563 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 15:12:13,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:12:13 BoogieIcfgContainer [2022-12-13 15:12:13,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:12:13,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:12:13,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:12:13,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:12:13,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:12:12" (1/3) ... [2022-12-13 15:12:13,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe86b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:12:13, skipping insertion in model container [2022-12-13 15:12:13,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:13" (2/3) ... [2022-12-13 15:12:13,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe86b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:12:13, skipping insertion in model container [2022-12-13 15:12:13,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:12:13" (3/3) ... [2022-12-13 15:12:13,573 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2022-12-13 15:12:13,592 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:12:13,592 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 15:12:13,592 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 15:12:13,630 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 15:12:13,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 72 transitions, 152 flow [2022-12-13 15:12:13,684 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2022-12-13 15:12:13,684 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 15:12:13,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 71 events. 2/71 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-12-13 15:12:13,688 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 72 transitions, 152 flow [2022-12-13 15:12:13,691 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 66 transitions, 138 flow [2022-12-13 15:12:13,694 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 15:12:13,702 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 66 transitions, 138 flow [2022-12-13 15:12:13,704 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 66 transitions, 138 flow [2022-12-13 15:12:13,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 66 transitions, 138 flow [2022-12-13 15:12:13,718 INFO L130 PetriNetUnfolder]: 2/66 cut-off events. [2022-12-13 15:12:13,718 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 15:12:13,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 66 events. 2/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 35 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-12-13 15:12:13,719 INFO L119 LiptonReduction]: Number of co-enabled transitions 384 [2022-12-13 15:12:15,664 INFO L134 LiptonReduction]: Checked pairs total: 687 [2022-12-13 15:12:15,665 INFO L136 LiptonReduction]: Total number of compositions: 67 [2022-12-13 15:12:15,678 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:12:15,683 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6037728e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:12:15,684 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-13 15:12:15,685 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 15:12:15,685 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:12:15,685 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:12:15,686 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 15:12:15,686 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-12-13 15:12:15,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:12:15,690 INFO L85 PathProgramCache]: Analyzing trace with hash 276, now seen corresponding path program 1 times [2022-12-13 15:12:15,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:12:15,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484149648] [2022-12-13 15:12:15,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:12:15,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:12:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:12:15,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:12:15,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:12:15,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484149648] [2022-12-13 15:12:15,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484149648] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:12:15,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:12:15,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 15:12:15,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476070654] [2022-12-13 15:12:15,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:12:15,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 15:12:15,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:12:15,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 15:12:15,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:12:15,799 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 139 [2022-12-13 15:12:15,800 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 13 transitions, 32 flow. Second operand has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:12:15,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:12:15,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 139 [2022-12-13 15:12:15,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:12:15,828 INFO L130 PetriNetUnfolder]: 12/35 cut-off events. [2022-12-13 15:12:15,828 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 15:12:15,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 35 events. 12/35 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 88 event pairs, 12 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 62. Up to 36 conditions per place. [2022-12-13 15:12:15,829 INFO L137 encePairwiseOnDemand]: 137/139 looper letters, 11 selfloop transitions, 0 changer transitions 0/11 dead transitions. [2022-12-13 15:12:15,829 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 11 transitions, 50 flow [2022-12-13 15:12:15,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 15:12:15,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 15:12:15,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 149 transitions. [2022-12-13 15:12:15,838 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5359712230215827 [2022-12-13 15:12:15,838 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 149 transitions. [2022-12-13 15:12:15,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 149 transitions. [2022-12-13 15:12:15,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:12:15,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 149 transitions. [2022-12-13 15:12:15,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 74.5) internal successors, (149), 2 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:12:15,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:12:15,846 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:12:15,847 INFO L175 Difference]: Start difference. First operand has 17 places, 13 transitions, 32 flow. Second operand 2 states and 149 transitions. [2022-12-13 15:12:15,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 11 transitions, 50 flow [2022-12-13 15:12:15,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 11 transitions, 46 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 15:12:15,850 INFO L231 Difference]: Finished difference. Result has 14 places, 11 transitions, 24 flow [2022-12-13 15:12:15,851 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=24, PETRI_PLACES=14, PETRI_TRANSITIONS=11} [2022-12-13 15:12:15,854 INFO L288 CegarLoopForPetriNet]: 17 programPoint places, -3 predicate places. [2022-12-13 15:12:15,854 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 11 transitions, 24 flow [2022-12-13 15:12:15,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:12:15,855 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:12:15,855 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 15:12:15,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:12:15,855 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-12-13 15:12:15,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:12:15,855 INFO L85 PathProgramCache]: Analyzing trace with hash 269078, now seen corresponding path program 1 times [2022-12-13 15:12:15,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:12:15,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604643284] [2022-12-13 15:12:15,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:12:15,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:12:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:12:15,883 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:12:15,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:12:15,907 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:12:15,907 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 15:12:15,908 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2022-12-13 15:12:15,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2022-12-13 15:12:15,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2022-12-13 15:12:15,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2022-12-13 15:12:15,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2022-12-13 15:12:15,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2022-12-13 15:12:15,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-12-13 15:12:15,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2022-12-13 15:12:15,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:12:15,911 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 15:12:15,915 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 15:12:15,915 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:12:15,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:12:15 BasicIcfg [2022-12-13 15:12:15,927 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:12:15,927 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:12:15,927 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:12:15,927 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:12:15,928 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:12:13" (3/4) ... [2022-12-13 15:12:15,930 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 15:12:15,930 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:12:15,930 INFO L158 Benchmark]: Toolchain (without parser) took 3034.25ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 107.0MB in the beginning and 100.4MB in the end (delta: 6.5MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2022-12-13 15:12:15,930 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 140.5MB. Free memory is still 111.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:12:15,931 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.88ms. Allocated memory is still 140.5MB. Free memory was 107.0MB in the beginning and 88.3MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 15:12:15,931 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.92ms. Allocated memory is still 140.5MB. Free memory was 88.3MB in the beginning and 86.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:12:15,931 INFO L158 Benchmark]: Boogie Preprocessor took 16.89ms. Allocated memory is still 140.5MB. Free memory was 86.2MB in the beginning and 85.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:12:15,932 INFO L158 Benchmark]: RCFGBuilder took 313.74ms. Allocated memory is still 140.5MB. Free memory was 84.6MB in the beginning and 72.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 15:12:15,932 INFO L158 Benchmark]: TraceAbstraction took 2359.85ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 71.5MB in the beginning and 101.5MB in the end (delta: -30.0MB). Peak memory consumption was 738.7kB. Max. memory is 16.1GB. [2022-12-13 15:12:15,932 INFO L158 Benchmark]: Witness Printer took 2.35ms. Allocated memory is still 169.9MB. Free memory was 101.5MB in the beginning and 100.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:12:15,934 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 140.5MB. Free memory is still 111.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.88ms. Allocated memory is still 140.5MB. Free memory was 107.0MB in the beginning and 88.3MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.92ms. Allocated memory is still 140.5MB. Free memory was 88.3MB in the beginning and 86.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.89ms. Allocated memory is still 140.5MB. Free memory was 86.2MB in the beginning and 85.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 313.74ms. Allocated memory is still 140.5MB. Free memory was 84.6MB in the beginning and 72.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2359.85ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 71.5MB in the beginning and 101.5MB in the end (delta: -30.0MB). Peak memory consumption was 738.7kB. Max. memory is 16.1GB. * Witness Printer took 2.35ms. Allocated memory is still 169.9MB. Free memory was 101.5MB in the beginning and 100.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 68 PlacesBefore, 17 PlacesAfterwards, 66 TransitionsBefore, 13 TransitionsAfterwards, 384 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 67 TotalNumberOfCompositions, 687 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 441, independent: 387, independent conditional: 0, independent unconditional: 387, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 255, independent: 232, independent conditional: 0, independent unconditional: 232, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 441, independent: 155, independent conditional: 0, independent unconditional: 155, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 255, unknown conditional: 0, unknown unconditional: 255] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 1) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 95 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2022-12-13 15:12:15,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8 --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 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 15:12:17,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:12:17,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:12:17,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:12:17,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:12:17,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:12:17,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:12:17,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:12:17,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:12:17,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:12:17,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:12:17,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:12:17,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:12:17,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:12:17,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:12:17,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:12:17,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:12:17,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:12:17,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:12:17,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:12:17,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:12:17,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:12:17,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:12:17,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:12:17,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:12:17,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:12:17,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:12:17,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:12:17,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:12:17,666 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:12:17,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:12:17,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:12:17,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:12:17,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:12:17,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:12:17,677 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:12:17,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:12:17,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:12:17,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:12:17,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:12:17,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:12:17,680 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 15:12:17,696 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:12:17,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:12:17,697 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:12:17,697 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:12:17,698 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:12:17,698 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:12:17,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:12:17,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:12:17,699 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:12:17,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:12:17,699 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:12:17,699 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:12:17,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:12:17,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:12:17,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:12:17,700 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 15:12:17,700 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 15:12:17,700 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 15:12:17,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:12:17,700 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 15:12:17,701 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 15:12:17,701 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 15:12:17,701 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:12:17,701 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:12:17,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:12:17,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:12:17,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:12:17,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:12:17,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:12:17,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:12:17,702 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 15:12:17,702 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 15:12:17,703 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:12:17,703 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:12:17,703 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:12:17,703 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 15:12:17,703 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:12:17,703 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa [2022-12-13 15:12:17,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:12:17,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:12:17,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:12:17,924 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:12:17,925 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:12:17,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2022-12-13 15:12:20,531 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:12:20,718 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:12:20,719 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2022-12-13 15:12:20,732 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/data/78524883c/c37842180ef74fa5984541de3deb1f21/FLAG31a9e64fa [2022-12-13 15:12:20,744 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/data/78524883c/c37842180ef74fa5984541de3deb1f21 [2022-12-13 15:12:20,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:12:20,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:12:20,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:12:20,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:12:20,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:12:20,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:12:20" (1/1) ... [2022-12-13 15:12:20,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77fe07c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:20, skipping insertion in model container [2022-12-13 15:12:20,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:12:20" (1/1) ... [2022-12-13 15:12:20,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:12:20,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:12:20,917 WARN L237 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_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2022-12-13 15:12:21,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:12:21,047 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:12:21,056 WARN L237 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_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2022-12-13 15:12:21,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:12:21,130 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:12:21,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:21 WrapperNode [2022-12-13 15:12:21,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:12:21,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:12:21,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:12:21,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:12:21,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:21" (1/1) ... [2022-12-13 15:12:21,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:21" (1/1) ... [2022-12-13 15:12:21,170 INFO L138 Inliner]: procedures = 167, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-13 15:12:21,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:12:21,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:12:21,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:12:21,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:12:21,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:21" (1/1) ... [2022-12-13 15:12:21,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:21" (1/1) ... [2022-12-13 15:12:21,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:21" (1/1) ... [2022-12-13 15:12:21,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:21" (1/1) ... [2022-12-13 15:12:21,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:21" (1/1) ... [2022-12-13 15:12:21,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:21" (1/1) ... [2022-12-13 15:12:21,191 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:21" (1/1) ... [2022-12-13 15:12:21,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:21" (1/1) ... [2022-12-13 15:12:21,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:12:21,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:12:21,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:12:21,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:12:21,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:21" (1/1) ... [2022-12-13 15:12:21,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:12:21,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:12:21,220 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:12:21,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:12:21,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-13 15:12:21,254 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 15:12:21,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:12:21,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:12:21,254 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 15:12:21,255 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 15:12:21,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:12:21,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 15:12:21,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 15:12:21,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-13 15:12:21,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:12:21,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:12:21,257 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 15:12:21,374 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:12:21,376 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:12:21,513 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:12:21,517 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:12:21,518 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 15:12:21,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:12:21 BoogieIcfgContainer [2022-12-13 15:12:21,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:12:21,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:12:21,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:12:21,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:12:21,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:12:20" (1/3) ... [2022-12-13 15:12:21,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741f5492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:12:21, skipping insertion in model container [2022-12-13 15:12:21,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:12:21" (2/3) ... [2022-12-13 15:12:21,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741f5492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:12:21, skipping insertion in model container [2022-12-13 15:12:21,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:12:21" (3/3) ... [2022-12-13 15:12:21,526 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2022-12-13 15:12:21,539 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:12:21,540 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 15:12:21,540 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 15:12:21,586 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 15:12:21,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 72 transitions, 152 flow [2022-12-13 15:12:21,646 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2022-12-13 15:12:21,646 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 15:12:21,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 71 events. 2/71 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 38 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2022-12-13 15:12:21,649 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 72 transitions, 152 flow [2022-12-13 15:12:21,652 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 66 transitions, 138 flow [2022-12-13 15:12:21,655 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 15:12:21,662 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 66 transitions, 138 flow [2022-12-13 15:12:21,664 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 66 transitions, 138 flow [2022-12-13 15:12:21,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 66 transitions, 138 flow [2022-12-13 15:12:21,676 INFO L130 PetriNetUnfolder]: 2/66 cut-off events. [2022-12-13 15:12:21,676 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 15:12:21,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 66 events. 2/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 37 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2022-12-13 15:12:21,677 INFO L119 LiptonReduction]: Number of co-enabled transitions 368 [2022-12-13 15:12:25,243 INFO L134 LiptonReduction]: Checked pairs total: 585 [2022-12-13 15:12:25,244 INFO L136 LiptonReduction]: Total number of compositions: 70 [2022-12-13 15:12:25,254 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:12:25,258 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@76b24bb5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:12:25,259 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-13 15:12:25,260 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 15:12:25,260 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:12:25,260 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:12:25,260 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 15:12:25,261 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-12-13 15:12:25,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:12:25,264 INFO L85 PathProgramCache]: Analyzing trace with hash 278, now seen corresponding path program 1 times [2022-12-13 15:12:25,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:12:25,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639559312] [2022-12-13 15:12:25,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:12:25,274 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:12:25,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:12:25,275 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 15:12:25,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 15:12:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:12:25,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 15:12:25,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:12:25,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:12:25,318 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:12:25,318 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:12:25,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639559312] [2022-12-13 15:12:25,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639559312] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:12:25,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:12:25,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 15:12:25,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779821070] [2022-12-13 15:12:25,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:12:25,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 15:12:25,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:12:25,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 15:12:25,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:12:25,353 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 142 [2022-12-13 15:12:25,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 13 transitions, 32 flow. Second operand has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:12:25,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:12:25,355 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 142 [2022-12-13 15:12:25,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:12:25,396 INFO L130 PetriNetUnfolder]: 12/35 cut-off events. [2022-12-13 15:12:25,397 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 15:12:25,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 35 events. 12/35 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 86 event pairs, 12 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 62. Up to 36 conditions per place. [2022-12-13 15:12:25,398 INFO L137 encePairwiseOnDemand]: 140/142 looper letters, 11 selfloop transitions, 0 changer transitions 0/11 dead transitions. [2022-12-13 15:12:25,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 11 transitions, 50 flow [2022-12-13 15:12:25,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 15:12:25,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 15:12:25,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 149 transitions. [2022-12-13 15:12:25,411 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5246478873239436 [2022-12-13 15:12:25,411 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 149 transitions. [2022-12-13 15:12:25,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 149 transitions. [2022-12-13 15:12:25,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:12:25,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 149 transitions. [2022-12-13 15:12:25,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 74.5) internal successors, (149), 2 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:12:25,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:12:25,422 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:12:25,424 INFO L175 Difference]: Start difference. First operand has 17 places, 13 transitions, 32 flow. Second operand 2 states and 149 transitions. [2022-12-13 15:12:25,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 11 transitions, 50 flow [2022-12-13 15:12:25,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 11 transitions, 46 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 15:12:25,428 INFO L231 Difference]: Finished difference. Result has 14 places, 11 transitions, 24 flow [2022-12-13 15:12:25,430 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=24, PETRI_PLACES=14, PETRI_TRANSITIONS=11} [2022-12-13 15:12:25,433 INFO L288 CegarLoopForPetriNet]: 17 programPoint places, -3 predicate places. [2022-12-13 15:12:25,433 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 11 transitions, 24 flow [2022-12-13 15:12:25,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:12:25,434 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:12:25,434 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 15:12:25,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 15:12:25,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:12:25,636 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-12-13 15:12:25,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:12:25,639 INFO L85 PathProgramCache]: Analyzing trace with hash 271929, now seen corresponding path program 1 times [2022-12-13 15:12:25,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:12:25,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024529444] [2022-12-13 15:12:25,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:12:25,643 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:12:25,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:12:25,648 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 15:12:25,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 15:12:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:12:25,726 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:12:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:12:25,759 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 15:12:25,760 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 15:12:25,761 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2022-12-13 15:12:25,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2022-12-13 15:12:25,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2022-12-13 15:12:25,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2022-12-13 15:12:25,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2022-12-13 15:12:25,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2022-12-13 15:12:25,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-12-13 15:12:25,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2022-12-13 15:12:25,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 15:12:25,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:12:25,965 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 15:12:25,970 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 15:12:25,970 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:12:25,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:12:25 BasicIcfg [2022-12-13 15:12:25,984 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:12:25,985 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:12:25,985 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:12:25,985 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:12:25,986 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:12:21" (3/4) ... [2022-12-13 15:12:25,988 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 15:12:25,988 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:12:25,988 INFO L158 Benchmark]: Toolchain (without parser) took 5240.98ms. Allocated memory is still 86.0MB. Free memory was 63.6MB in the beginning and 51.2MB in the end (delta: 12.4MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2022-12-13 15:12:25,989 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 39.3MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:12:25,989 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.68ms. Allocated memory is still 86.0MB. Free memory was 63.4MB in the beginning and 63.5MB in the end (delta: -184.2kB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2022-12-13 15:12:25,990 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.71ms. Allocated memory is still 86.0MB. Free memory was 63.5MB in the beginning and 61.6MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 15:12:25,990 INFO L158 Benchmark]: Boogie Preprocessor took 23.74ms. Allocated memory is still 86.0MB. Free memory was 61.6MB in the beginning and 59.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:12:25,991 INFO L158 Benchmark]: RCFGBuilder took 323.63ms. Allocated memory is still 86.0MB. Free memory was 59.9MB in the beginning and 46.0MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 15:12:25,991 INFO L158 Benchmark]: TraceAbstraction took 4463.70ms. Allocated memory is still 86.0MB. Free memory was 45.3MB in the beginning and 51.2MB in the end (delta: -5.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:12:25,991 INFO L158 Benchmark]: Witness Printer took 3.02ms. Allocated memory is still 86.0MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:12:25,993 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 39.3MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.68ms. Allocated memory is still 86.0MB. Free memory was 63.4MB in the beginning and 63.5MB in the end (delta: -184.2kB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.71ms. Allocated memory is still 86.0MB. Free memory was 63.5MB in the beginning and 61.6MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.74ms. Allocated memory is still 86.0MB. Free memory was 61.6MB in the beginning and 59.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 323.63ms. Allocated memory is still 86.0MB. Free memory was 59.9MB in the beginning and 46.0MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4463.70ms. Allocated memory is still 86.0MB. Free memory was 45.3MB in the beginning and 51.2MB in the end (delta: -5.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.02ms. Allocated memory is still 86.0MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 68 PlacesBefore, 17 PlacesAfterwards, 66 TransitionsBefore, 13 TransitionsAfterwards, 368 CoEnabledTransitionPairs, 5 FixpointIterations, 37 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 70 TotalNumberOfCompositions, 585 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 404, independent: 360, independent conditional: 0, independent unconditional: 360, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 233, independent: 216, independent conditional: 0, independent unconditional: 216, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 404, independent: 144, independent conditional: 0, independent unconditional: 144, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 233, unknown conditional: 0, unknown unconditional: 233] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={7:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 1) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 94 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2022-12-13 15:12:26,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b8123a2-4002-4f4e-b5a8-734d9ae0b688/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample