./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_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_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/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_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/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_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/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 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 --- 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 13:41:24,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:41:24,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:41:24,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:41:24,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:41:24,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:41:24,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:41:24,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:41:24,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:41:24,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:41:24,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:41:24,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:41:24,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:41:24,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:41:24,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:41:24,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:41:24,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:41:24,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:41:24,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:41:24,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:41:24,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:41:24,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:41:24,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:41:24,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:41:24,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:41:24,870 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:41:24,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:41:24,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:41:24,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:41:24,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:41:24,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:41:24,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:41:24,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:41:24,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:41:24,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:41:24,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:41:24,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:41:24,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:41:24,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:41:24,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:41:24,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:41:24,877 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 13:41:24,892 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:41:24,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:41:24,892 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:41:24,892 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:41:24,893 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:41:24,893 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:41:24,893 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:41:24,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:41:24,894 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:41:24,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:41:24,894 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:41:24,894 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:41:24,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:41:24,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:41:24,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:41:24,895 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 13:41:24,895 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 13:41:24,895 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 13:41:24,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:41:24,895 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 13:41:24,895 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:41:24,895 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:41:24,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:41:24,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:41:24,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:41:24,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:41:24,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:41:24,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:41:24,896 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:41:24,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:41:24,896 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:41:24,896 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:41:24,897 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:41:24,897 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:41:24,897 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_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 [2022-12-13 13:41:25,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:41:25,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:41:25,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:41:25,077 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:41:25,077 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:41:25,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-12-13 13:41:27,654 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:41:27,834 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:41:27,835 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-12-13 13:41:27,842 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/data/6dc80019d/01c042b8bd33459881ccc4d301da961c/FLAG0033b80b3 [2022-12-13 13:41:27,852 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/data/6dc80019d/01c042b8bd33459881ccc4d301da961c [2022-12-13 13:41:27,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:41:27,855 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:41:27,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:41:27,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:41:27,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:41:27,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:41:27" (1/1) ... [2022-12-13 13:41:27,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6adddfba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:27, skipping insertion in model container [2022-12-13 13:41:27,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:41:27" (1/1) ... [2022-12-13 13:41:27,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:41:27,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:41:27,991 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_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-12-13 13:41:28,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:41:28,088 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:41:28,097 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_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-12-13 13:41:28,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:41:28,132 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:41:28,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:28 WrapperNode [2022-12-13 13:41:28,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:41:28,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:41:28,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:41:28,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:41:28,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:28" (1/1) ... [2022-12-13 13:41:28,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:28" (1/1) ... [2022-12-13 13:41:28,160 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-12-13 13:41:28,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:41:28,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:41:28,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:41:28,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:41:28,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:28" (1/1) ... [2022-12-13 13:41:28,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:28" (1/1) ... [2022-12-13 13:41:28,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:28" (1/1) ... [2022-12-13 13:41:28,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:28" (1/1) ... [2022-12-13 13:41:28,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:28" (1/1) ... [2022-12-13 13:41:28,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:28" (1/1) ... [2022-12-13 13:41:28,174 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:28" (1/1) ... [2022-12-13 13:41:28,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:28" (1/1) ... [2022-12-13 13:41:28,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:41:28,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:41:28,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:41:28,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:41:28,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:28" (1/1) ... [2022-12-13 13:41:28,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:41:28,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:41:28,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:41:28,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:41:28,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:41:28,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:41:28,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:41:28,232 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 13:41:28,232 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 13:41:28,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:41:28,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:41:28,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:41:28,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:41:28,233 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 13:41:28,320 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:41:28,322 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:41:28,408 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:41:28,413 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:41:28,413 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 13:41:28,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:41:28 BoogieIcfgContainer [2022-12-13 13:41:28,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:41:28,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:41:28,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:41:28,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:41:28,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:41:27" (1/3) ... [2022-12-13 13:41:28,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd7a849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:41:28, skipping insertion in model container [2022-12-13 13:41:28,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:28" (2/3) ... [2022-12-13 13:41:28,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd7a849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:41:28, skipping insertion in model container [2022-12-13 13:41:28,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:41:28" (3/3) ... [2022-12-13 13:41:28,424 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-12-13 13:41:28,438 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:41:28,439 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 13:41:28,439 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:41:28,472 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 13:41:28,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 49 transitions, 103 flow [2022-12-13 13:41:28,526 INFO L130 PetriNetUnfolder]: 1/48 cut-off events. [2022-12-13 13:41:28,526 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:41:28,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 48 events. 1/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2022-12-13 13:41:28,530 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 49 transitions, 103 flow [2022-12-13 13:41:28,533 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 48 transitions, 99 flow [2022-12-13 13:41:28,536 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:41:28,547 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 48 transitions, 99 flow [2022-12-13 13:41:28,550 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 48 transitions, 99 flow [2022-12-13 13:41:28,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 48 transitions, 99 flow [2022-12-13 13:41:28,563 INFO L130 PetriNetUnfolder]: 1/48 cut-off events. [2022-12-13 13:41:28,564 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:41:28,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 48 events. 1/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2022-12-13 13:41:28,565 INFO L119 LiptonReduction]: Number of co-enabled transitions 352 [2022-12-13 13:41:29,707 INFO L134 LiptonReduction]: Checked pairs total: 276 [2022-12-13 13:41:29,707 INFO L136 LiptonReduction]: Total number of compositions: 55 [2022-12-13 13:41:29,721 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:41:29,728 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;@4aab0c42, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:41:29,728 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-13 13:41:29,729 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 13:41:29,729 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:41:29,730 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:41:29,730 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 13:41:29,731 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2022-12-13 13:41:29,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:41:29,735 INFO L85 PathProgramCache]: Analyzing trace with hash 205, now seen corresponding path program 1 times [2022-12-13 13:41:29,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:41:29,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092115306] [2022-12-13 13:41:29,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:29,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:41:29,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:41:29,818 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 13:41:29,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:41:29,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092115306] [2022-12-13 13:41:29,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092115306] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:41:29,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:41:29,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 13:41:29,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349387818] [2022-12-13 13:41:29,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:41:29,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:41:29,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:41:29,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:41:29,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:41:29,844 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 104 [2022-12-13 13:41:29,846 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 8 transitions, 19 flow. Second operand has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 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 13:41:29,846 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:41:29,846 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 104 [2022-12-13 13:41:29,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:41:29,863 INFO L130 PetriNetUnfolder]: 4/14 cut-off events. [2022-12-13 13:41:29,863 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:41:29,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 14 events. 4/14 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 25 event pairs, 4 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 24. Up to 15 conditions per place. [2022-12-13 13:41:29,864 INFO L137 encePairwiseOnDemand]: 102/104 looper letters, 6 selfloop transitions, 0 changer transitions 0/6 dead transitions. [2022-12-13 13:41:29,864 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 11 places, 6 transitions, 27 flow [2022-12-13 13:41:29,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:41:29,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 13:41:29,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 100 transitions. [2022-12-13 13:41:29,873 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4807692307692308 [2022-12-13 13:41:29,873 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 100 transitions. [2022-12-13 13:41:29,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 100 transitions. [2022-12-13 13:41:29,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:41:29,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 100 transitions. [2022-12-13 13:41:29,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 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 13:41:29,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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 13:41:29,880 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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 13:41:29,882 INFO L175 Difference]: Start difference. First operand has 12 places, 8 transitions, 19 flow. Second operand 2 states and 100 transitions. [2022-12-13 13:41:29,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 11 places, 6 transitions, 27 flow [2022-12-13 13:41:29,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 26 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:41:29,885 INFO L231 Difference]: Finished difference. Result has 10 places, 6 transitions, 14 flow [2022-12-13 13:41:29,886 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=14, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=14, PETRI_PLACES=10, PETRI_TRANSITIONS=6} [2022-12-13 13:41:29,888 INFO L288 CegarLoopForPetriNet]: 12 programPoint places, -2 predicate places. [2022-12-13 13:41:29,889 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 6 transitions, 14 flow [2022-12-13 13:41:29,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 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 13:41:29,889 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:41:29,889 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 13:41:29,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:41:29,889 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2022-12-13 13:41:29,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:41:29,890 INFO L85 PathProgramCache]: Analyzing trace with hash 199934, now seen corresponding path program 1 times [2022-12-13 13:41:29,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:41:29,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610161927] [2022-12-13 13:41:29,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:29,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:41:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:41:29,913 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:41:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:41:29,935 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:41:29,935 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 13:41:29,936 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2022-12-13 13:41:29,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2022-12-13 13:41:29,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2022-12-13 13:41:29,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (2 of 6 remaining) [2022-12-13 13:41:29,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2022-12-13 13:41:29,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2022-12-13 13:41:29,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:41:29,938 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 13:41:29,943 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 13:41:29,943 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:41:29,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:41:29 BasicIcfg [2022-12-13 13:41:29,955 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:41:29,955 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:41:29,955 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:41:29,955 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:41:29,955 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:41:28" (3/4) ... [2022-12-13 13:41:29,957 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 13:41:29,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:41:29,958 INFO L158 Benchmark]: Toolchain (without parser) took 2102.46ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 96.8MB in the beginning and 89.2MB in the end (delta: 7.6MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2022-12-13 13:41:29,958 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 127.9MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:41:29,959 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.77ms. Allocated memory is still 127.9MB. Free memory was 96.8MB in the beginning and 78.4MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 13:41:29,959 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.28ms. Allocated memory is still 127.9MB. Free memory was 78.0MB in the beginning and 76.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:41:29,959 INFO L158 Benchmark]: Boogie Preprocessor took 15.14ms. Allocated memory is still 127.9MB. Free memory was 76.3MB in the beginning and 75.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:41:29,960 INFO L158 Benchmark]: RCFGBuilder took 238.46ms. Allocated memory is still 127.9MB. Free memory was 75.0MB in the beginning and 64.2MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 13:41:29,960 INFO L158 Benchmark]: TraceAbstraction took 1537.77ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 63.3MB in the beginning and 89.2MB in the end (delta: -25.9MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2022-12-13 13:41:29,960 INFO L158 Benchmark]: Witness Printer took 2.44ms. Allocated memory is still 155.2MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:41:29,962 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 127.9MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.77ms. Allocated memory is still 127.9MB. Free memory was 96.8MB in the beginning and 78.4MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.28ms. Allocated memory is still 127.9MB. Free memory was 78.0MB in the beginning and 76.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.14ms. Allocated memory is still 127.9MB. Free memory was 76.3MB in the beginning and 75.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 238.46ms. Allocated memory is still 127.9MB. Free memory was 75.0MB in the beginning and 64.2MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1537.77ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 63.3MB in the beginning and 89.2MB in the end (delta: -25.9MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. * Witness Printer took 2.44ms. Allocated memory is still 155.2MB. Free memory is still 89.2MB. 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: 1.2s, 51 PlacesBefore, 12 PlacesAfterwards, 48 TransitionsBefore, 8 TransitionsAfterwards, 352 CoEnabledTransitionPairs, 5 FixpointIterations, 23 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 55 TotalNumberOfCompositions, 276 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 276, independent: 276, independent conditional: 0, independent unconditional: 276, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 181, independent: 181, independent conditional: 0, independent unconditional: 181, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 276, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 181, unknown conditional: 0, unknown unconditional: 181] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: [L688] 0 int x = 3; [L689] 0 pthread_t id; [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=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: 687]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 690]: 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, 66 locations, 6 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: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, 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, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 6 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=19occurred 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 13:41:29,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/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_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/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_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/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_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/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 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 --- 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 13:41:31,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:41:31,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:41:31,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:41:31,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:41:31,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:41:31,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:41:31,693 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:41:31,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:41:31,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:41:31,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:41:31,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:41:31,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:41:31,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:41:31,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:41:31,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:41:31,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:41:31,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:41:31,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:41:31,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:41:31,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:41:31,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:41:31,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:41:31,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:41:31,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:41:31,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:41:31,715 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:41:31,716 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:41:31,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:41:31,717 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:41:31,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:41:31,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:41:31,719 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:41:31,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:41:31,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:41:31,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:41:31,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:41:31,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:41:31,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:41:31,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:41:31,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:41:31,724 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 13:41:31,746 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:41:31,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:41:31,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:41:31,746 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:41:31,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:41:31,747 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:41:31,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:41:31,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:41:31,748 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:41:31,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:41:31,749 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:41:31,749 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:41:31,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:41:31,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:41:31,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:41:31,750 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 13:41:31,750 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 13:41:31,750 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 13:41:31,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:41:31,750 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 13:41:31,751 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 13:41:31,751 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 13:41:31,751 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:41:31,751 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:41:31,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:41:31,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:41:31,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:41:31,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:41:31,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:41:31,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:41:31,753 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 13:41:31,753 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 13:41:31,753 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:41:31,753 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:41:31,753 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:41:31,753 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 13:41:31,754 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:41:31,754 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_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 [2022-12-13 13:41:31,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:41:31,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:41:31,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:41:31,986 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:41:31,986 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:41:31,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-12-13 13:41:34,615 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:41:34,804 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:41:34,804 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-12-13 13:41:34,819 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/data/6c016f843/a650b39bada044de982d840f890f8824/FLAG7b5f13473 [2022-12-13 13:41:34,831 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/data/6c016f843/a650b39bada044de982d840f890f8824 [2022-12-13 13:41:34,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:41:34,834 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:41:34,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:41:34,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:41:34,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:41:34,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:41:34" (1/1) ... [2022-12-13 13:41:34,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b0cebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:34, skipping insertion in model container [2022-12-13 13:41:34,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:41:34" (1/1) ... [2022-12-13 13:41:34,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:41:34,869 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:41:34,979 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_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-12-13 13:41:35,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:41:35,073 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:41:35,082 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_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-12-13 13:41:35,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:41:35,137 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:41:35,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:35 WrapperNode [2022-12-13 13:41:35,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:41:35,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:41:35,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:41:35,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:41:35,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:35" (1/1) ... [2022-12-13 13:41:35,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:35" (1/1) ... [2022-12-13 13:41:35,171 INFO L138 Inliner]: procedures = 165, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-12-13 13:41:35,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:41:35,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:41:35,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:41:35,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:41:35,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:35" (1/1) ... [2022-12-13 13:41:35,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:35" (1/1) ... [2022-12-13 13:41:35,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:35" (1/1) ... [2022-12-13 13:41:35,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:35" (1/1) ... [2022-12-13 13:41:35,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:35" (1/1) ... [2022-12-13 13:41:35,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:35" (1/1) ... [2022-12-13 13:41:35,187 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:35" (1/1) ... [2022-12-13 13:41:35,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:35" (1/1) ... [2022-12-13 13:41:35,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:41:35,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:41:35,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:41:35,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:41:35,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:35" (1/1) ... [2022-12-13 13:41:35,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:41:35,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:41:35,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:41:35,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:41:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:41:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:41:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 13:41:35,253 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 13:41:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:41:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 13:41:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 13:41:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:41:35,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:41:35,255 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 13:41:35,370 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:41:35,373 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:41:35,485 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:41:35,490 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:41:35,490 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 13:41:35,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:41:35 BoogieIcfgContainer [2022-12-13 13:41:35,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:41:35,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:41:35,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:41:35,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:41:35,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:41:34" (1/3) ... [2022-12-13 13:41:35,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c695c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:41:35, skipping insertion in model container [2022-12-13 13:41:35,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:35" (2/3) ... [2022-12-13 13:41:35,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c695c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:41:35, skipping insertion in model container [2022-12-13 13:41:35,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:41:35" (3/3) ... [2022-12-13 13:41:35,499 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-12-13 13:41:35,513 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:41:35,513 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 13:41:35,513 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:41:35,548 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 13:41:35,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 49 transitions, 103 flow [2022-12-13 13:41:35,604 INFO L130 PetriNetUnfolder]: 1/48 cut-off events. [2022-12-13 13:41:35,604 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:41:35,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 48 events. 1/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2022-12-13 13:41:35,608 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 49 transitions, 103 flow [2022-12-13 13:41:35,611 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 48 transitions, 99 flow [2022-12-13 13:41:35,615 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:41:35,631 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 48 transitions, 99 flow [2022-12-13 13:41:35,634 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 48 transitions, 99 flow [2022-12-13 13:41:35,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 48 transitions, 99 flow [2022-12-13 13:41:35,646 INFO L130 PetriNetUnfolder]: 1/48 cut-off events. [2022-12-13 13:41:35,647 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:41:35,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 48 events. 1/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2022-12-13 13:41:35,648 INFO L119 LiptonReduction]: Number of co-enabled transitions 330 [2022-12-13 13:41:37,554 INFO L134 LiptonReduction]: Checked pairs total: 249 [2022-12-13 13:41:37,554 INFO L136 LiptonReduction]: Total number of compositions: 54 [2022-12-13 13:41:37,569 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:41:37,576 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;@5dc8841c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:41:37,576 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-13 13:41:37,577 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 13:41:37,577 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:41:37,577 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:41:37,578 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 13:41:37,578 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2022-12-13 13:41:37,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:41:37,583 INFO L85 PathProgramCache]: Analyzing trace with hash 203, now seen corresponding path program 1 times [2022-12-13 13:41:37,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:41:37,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329060045] [2022-12-13 13:41:37,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:37,596 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 13:41:37,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:41:37,597 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/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 13:41:37,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/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 13:41:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:41:37,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 13:41:37,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:41:37,640 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 13:41:37,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:41:37,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:41:37,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [329060045] [2022-12-13 13:41:37,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [329060045] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:41:37,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:41:37,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 13:41:37,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896507846] [2022-12-13 13:41:37,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:41:37,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:41:37,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:41:37,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:41:37,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:41:37,665 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 103 [2022-12-13 13:41:37,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 8 transitions, 19 flow. Second operand has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 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 13:41:37,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:41:37,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 103 [2022-12-13 13:41:37,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:41:37,688 INFO L130 PetriNetUnfolder]: 4/14 cut-off events. [2022-12-13 13:41:37,688 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:41:37,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 14 events. 4/14 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 25 event pairs, 4 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 24. Up to 15 conditions per place. [2022-12-13 13:41:37,689 INFO L137 encePairwiseOnDemand]: 101/103 looper letters, 6 selfloop transitions, 0 changer transitions 0/6 dead transitions. [2022-12-13 13:41:37,689 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 11 places, 6 transitions, 27 flow [2022-12-13 13:41:37,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:41:37,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 13:41:37,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 100 transitions. [2022-12-13 13:41:37,702 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4854368932038835 [2022-12-13 13:41:37,702 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 100 transitions. [2022-12-13 13:41:37,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 100 transitions. [2022-12-13 13:41:37,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:41:37,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 100 transitions. [2022-12-13 13:41:37,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 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 13:41:37,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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 13:41:37,713 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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 13:41:37,715 INFO L175 Difference]: Start difference. First operand has 12 places, 8 transitions, 19 flow. Second operand 2 states and 100 transitions. [2022-12-13 13:41:37,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 11 places, 6 transitions, 27 flow [2022-12-13 13:41:37,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 26 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:41:37,718 INFO L231 Difference]: Finished difference. Result has 10 places, 6 transitions, 14 flow [2022-12-13 13:41:37,720 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=14, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=14, PETRI_PLACES=10, PETRI_TRANSITIONS=6} [2022-12-13 13:41:37,724 INFO L288 CegarLoopForPetriNet]: 12 programPoint places, -2 predicate places. [2022-12-13 13:41:37,724 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 6 transitions, 14 flow [2022-12-13 13:41:37,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 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 13:41:37,724 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:41:37,725 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 13:41:37,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/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 13:41:37,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/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 13:41:37,926 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2022-12-13 13:41:37,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:41:37,927 INFO L85 PathProgramCache]: Analyzing trace with hash 197979, now seen corresponding path program 1 times [2022-12-13 13:41:37,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:41:37,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102674736] [2022-12-13 13:41:37,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:37,928 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 13:41:37,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:41:37,929 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/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 13:41:37,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/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 13:41:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:41:38,022 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:41:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:41:38,049 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 13:41:38,049 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 13:41:38,050 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2022-12-13 13:41:38,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2022-12-13 13:41:38,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2022-12-13 13:41:38,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (2 of 6 remaining) [2022-12-13 13:41:38,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2022-12-13 13:41:38,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2022-12-13 13:41:38,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/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 13:41:38,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/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 13:41:38,254 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 13:41:38,266 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 13:41:38,267 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:41:38,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:41:38 BasicIcfg [2022-12-13 13:41:38,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:41:38,301 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:41:38,302 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:41:38,302 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:41:38,302 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:41:35" (3/4) ... [2022-12-13 13:41:38,305 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 13:41:38,305 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:41:38,306 INFO L158 Benchmark]: Toolchain (without parser) took 3471.94ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 48.6MB in the beginning and 31.2MB in the end (delta: 17.3MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2022-12-13 13:41:38,306 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 73.4MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:41:38,311 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.42ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 48.3MB in the beginning and 69.9MB in the end (delta: -21.6MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2022-12-13 13:41:38,312 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.68ms. Allocated memory is still 94.4MB. Free memory was 69.9MB in the beginning and 68.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:41:38,312 INFO L158 Benchmark]: Boogie Preprocessor took 17.70ms. Allocated memory is still 94.4MB. Free memory was 68.1MB in the beginning and 66.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:41:38,313 INFO L158 Benchmark]: RCFGBuilder took 302.13ms. Allocated memory is still 94.4MB. Free memory was 66.5MB in the beginning and 54.7MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 13:41:38,313 INFO L158 Benchmark]: TraceAbstraction took 2807.16ms. Allocated memory is still 94.4MB. Free memory was 53.9MB in the beginning and 31.2MB in the end (delta: 22.7MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2022-12-13 13:41:38,313 INFO L158 Benchmark]: Witness Printer took 3.74ms. Allocated memory is still 94.4MB. Free memory is still 31.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:41:38,315 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 73.4MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.42ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 48.3MB in the beginning and 69.9MB in the end (delta: -21.6MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.68ms. Allocated memory is still 94.4MB. Free memory was 69.9MB in the beginning and 68.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.70ms. Allocated memory is still 94.4MB. Free memory was 68.1MB in the beginning and 66.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 302.13ms. Allocated memory is still 94.4MB. Free memory was 66.5MB in the beginning and 54.7MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2807.16ms. Allocated memory is still 94.4MB. Free memory was 53.9MB in the beginning and 31.2MB in the end (delta: 22.7MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * Witness Printer took 3.74ms. Allocated memory is still 94.4MB. Free memory is still 31.2MB. 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: 1.9s, 51 PlacesBefore, 12 PlacesAfterwards, 48 TransitionsBefore, 8 TransitionsAfterwards, 330 CoEnabledTransitionPairs, 5 FixpointIterations, 24 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 54 TotalNumberOfCompositions, 249 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 249, independent: 249, independent conditional: 0, independent unconditional: 249, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 170, independent: 170, independent conditional: 0, independent unconditional: 170, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 249, independent: 79, independent conditional: 0, independent unconditional: 79, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 170, unknown conditional: 0, unknown unconditional: 170] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: [L688] 0 int x = 3; [L689] 0 pthread_t id; [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=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: 687]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 690]: 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, 65 locations, 6 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: 2.7s, 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, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 6 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=19occurred 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 13:41:38,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970b67eb-2da8-4bf6-9e8c-d70d34eed69f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample