./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e04fb08f 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_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 10:54:17,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 10:54:17,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 10:54:17,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 10:54:17,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 10:54:17,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 10:54:17,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 10:54:17,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 10:54:17,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 10:54:17,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 10:54:17,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 10:54:17,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 10:54:17,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 10:54:17,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 10:54:17,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 10:54:17,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 10:54:17,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 10:54:17,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 10:54:17,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 10:54:17,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 10:54:17,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 10:54:17,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 10:54:17,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 10:54:17,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 10:54:17,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 10:54:17,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 10:54:17,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 10:54:17,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 10:54:17,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 10:54:17,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 10:54:17,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 10:54:17,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 10:54:17,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 10:54:17,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 10:54:17,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 10:54:17,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 10:54:17,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 10:54:17,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 10:54:17,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 10:54:17,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 10:54:17,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 10:54:17,879 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-16 10:54:17,912 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 10:54:17,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 10:54:17,913 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 10:54:17,913 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 10:54:17,914 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 10:54:17,914 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 10:54:17,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 10:54:17,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 10:54:17,916 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 10:54:17,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 10:54:17,917 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 10:54:17,917 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 10:54:17,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 10:54:17,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 10:54:17,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 10:54:17,918 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 10:54:17,918 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 10:54:17,918 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 10:54:17,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 10:54:17,919 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 10:54:17,919 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 10:54:17,919 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 10:54:17,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 10:54:17,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 10:54:17,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 10:54:17,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:54:17,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 10:54:17,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 10:54:17,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 10:54:17,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 10:54:17,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa [2022-11-16 10:54:18,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 10:54:18,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 10:54:18,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 10:54:18,280 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 10:54:18,283 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 10:54:18,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2022-11-16 10:54:18,381 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/data/887b84f80/bc21e8b582cf45da9ca5b3396ee1bd5d/FLAG3ecd09280 [2022-11-16 10:54:18,942 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 10:54:18,943 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2022-11-16 10:54:18,957 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/data/887b84f80/bc21e8b582cf45da9ca5b3396ee1bd5d/FLAG3ecd09280 [2022-11-16 10:54:19,216 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/data/887b84f80/bc21e8b582cf45da9ca5b3396ee1bd5d [2022-11-16 10:54:19,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 10:54:19,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 10:54:19,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 10:54:19,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 10:54:19,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 10:54:19,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:54:19" (1/1) ... [2022-11-16 10:54:19,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a3cfa04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:19, skipping insertion in model container [2022-11-16 10:54:19,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:54:19" (1/1) ... [2022-11-16 10:54:19,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 10:54:19,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 10:54:19,497 WARN L229 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_f208a825-cb18-43e7-bea1-fe778326905d/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2022-11-16 10:54:19,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:54:19,748 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 10:54:19,764 WARN L229 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_f208a825-cb18-43e7-bea1-fe778326905d/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2022-11-16 10:54:19,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:54:19,857 INFO L208 MainTranslator]: Completed translation [2022-11-16 10:54:19,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:19 WrapperNode [2022-11-16 10:54:19,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 10:54:19,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 10:54:19,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 10:54:19,860 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 10:54:19,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:19" (1/1) ... [2022-11-16 10:54:19,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:19" (1/1) ... [2022-11-16 10:54:19,925 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-11-16 10:54:19,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 10:54:19,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 10:54:19,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 10:54:19,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 10:54:19,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:19" (1/1) ... [2022-11-16 10:54:19,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:19" (1/1) ... [2022-11-16 10:54:19,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:19" (1/1) ... [2022-11-16 10:54:19,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:19" (1/1) ... [2022-11-16 10:54:19,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:19" (1/1) ... [2022-11-16 10:54:19,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:19" (1/1) ... [2022-11-16 10:54:19,964 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:19" (1/1) ... [2022-11-16 10:54:19,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:19" (1/1) ... [2022-11-16 10:54:19,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 10:54:19,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 10:54:19,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 10:54:19,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 10:54:19,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:19" (1/1) ... [2022-11-16 10:54:19,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:54:20,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:54:20,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 10:54:20,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 10:54:20,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 10:54:20,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 10:54:20,070 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 10:54:20,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 10:54:20,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 10:54:20,071 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 10:54:20,071 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 10:54:20,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 10:54:20,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 10:54:20,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 10:54:20,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 10:54:20,073 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 10:54:20,201 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 10:54:20,203 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 10:54:20,372 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 10:54:20,379 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 10:54:20,379 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 10:54:20,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:54:20 BoogieIcfgContainer [2022-11-16 10:54:20,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 10:54:20,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 10:54:20,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 10:54:20,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 10:54:20,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:54:19" (1/3) ... [2022-11-16 10:54:20,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec66eda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:54:20, skipping insertion in model container [2022-11-16 10:54:20,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:19" (2/3) ... [2022-11-16 10:54:20,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec66eda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:54:20, skipping insertion in model container [2022-11-16 10:54:20,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:54:20" (3/3) ... [2022-11-16 10:54:20,392 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2022-11-16 10:54:20,413 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 10:54:20,413 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-16 10:54:20,413 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 10:54:20,505 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 10:54:20,549 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 10:54:20,565 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 72 transitions, 152 flow [2022-11-16 10:54:20,568 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 72 transitions, 152 flow [2022-11-16 10:54:20,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 72 transitions, 152 flow [2022-11-16 10:54:20,614 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2022-11-16 10:54:20,614 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 10:54:20,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 71 events. 2/71 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-11-16 10:54:20,621 INFO L119 LiptonReduction]: Number of co-enabled transitions 384 [2022-11-16 10:54:24,042 INFO L134 LiptonReduction]: Checked pairs total: 674 [2022-11-16 10:54:24,042 INFO L136 LiptonReduction]: Total number of compositions: 78 [2022-11-16 10:54:24,055 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 15 transitions, 38 flow [2022-11-16 10:54:24,070 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 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) [2022-11-16 10:54:24,099 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 10:54:24,108 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1c6603bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 10:54:24,108 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-16 10:54:24,111 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 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) [2022-11-16 10:54:24,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-16 10:54:24,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:54:24,121 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-16 10:54:24,122 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-16 10:54:24,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:24,131 INFO L85 PathProgramCache]: Analyzing trace with hash 287, now seen corresponding path program 1 times [2022-11-16 10:54:24,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:24,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097325305] [2022-11-16 10:54:24,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:24,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:24,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:54:24,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:24,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097325305] [2022-11-16 10:54:24,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097325305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:24,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:24,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-16 10:54:24,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089460618] [2022-11-16 10:54:24,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:24,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 10:54:24,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:24,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 10:54:24,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 10:54:24,281 INFO L87 Difference]: Start difference. First operand has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-16 10:54:24,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:54:24,321 INFO L93 Difference]: Finished difference Result 24 states and 35 transitions. [2022-11-16 10:54:24,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 10:54:24,324 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2022-11-16 10:54:24,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:54:24,339 INFO L225 Difference]: With dead ends: 24 [2022-11-16 10:54:24,339 INFO L226 Difference]: Without dead ends: 24 [2022-11-16 10:54:24,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 10:54:24,345 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 10:54:24,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 10:54:24,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-16 10:54:24,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-16 10:54:24,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 23 states have internal predecessors, (35), 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) [2022-11-16 10:54:24,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 35 transitions. [2022-11-16 10:54:24,386 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 35 transitions. Word has length 1 [2022-11-16 10:54:24,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:54:24,387 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 35 transitions. [2022-11-16 10:54:24,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-16 10:54:24,389 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2022-11-16 10:54:24,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 10:54:24,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:54:24,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 10:54:24,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 10:54:24,396 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-16 10:54:24,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:24,399 INFO L85 PathProgramCache]: Analyzing trace with hash 280621, now seen corresponding path program 1 times [2022-11-16 10:54:24,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:24,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176680912] [2022-11-16 10:54:24,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:24,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 10:54:24,464 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 10:54:24,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 10:54:24,523 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 10:54:24,523 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 10:54:24,525 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2022-11-16 10:54:24,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2022-11-16 10:54:24,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2022-11-16 10:54:24,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2022-11-16 10:54:24,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2022-11-16 10:54:24,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2022-11-16 10:54:24,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-11-16 10:54:24,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2022-11-16 10:54:24,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 10:54:24,532 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 10:54:24,537 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 10:54:24,538 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 10:54:24,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 10:54:24 BasicIcfg [2022-11-16 10:54:24,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 10:54:24,559 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 10:54:24,559 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 10:54:24,560 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 10:54:24,561 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:54:20" (3/4) ... [2022-11-16 10:54:24,564 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 10:54:24,565 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 10:54:24,570 INFO L158 Benchmark]: Toolchain (without parser) took 5345.89ms. Allocated memory was 127.9MB in the beginning and 163.6MB in the end (delta: 35.7MB). Free memory was 90.8MB in the beginning and 85.4MB in the end (delta: 5.4MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2022-11-16 10:54:24,575 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 127.9MB. Free memory was 108.5MB in the beginning and 108.3MB in the end (delta: 188.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 10:54:24,576 INFO L158 Benchmark]: CACSL2BoogieTranslator took 636.42ms. Allocated memory is still 127.9MB. Free memory was 90.6MB in the beginning and 93.3MB in the end (delta: -2.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 10:54:24,576 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.48ms. Allocated memory is still 127.9MB. Free memory was 93.3MB in the beginning and 91.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 10:54:24,576 INFO L158 Benchmark]: Boogie Preprocessor took 40.96ms. Allocated memory is still 127.9MB. Free memory was 91.1MB in the beginning and 90.2MB in the end (delta: 923.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 10:54:24,577 INFO L158 Benchmark]: RCFGBuilder took 413.22ms. Allocated memory is still 127.9MB. Free memory was 89.6MB in the beginning and 76.9MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 10:54:24,581 INFO L158 Benchmark]: TraceAbstraction took 4174.27ms. Allocated memory was 127.9MB in the beginning and 163.6MB in the end (delta: 35.7MB). Free memory was 76.3MB in the beginning and 85.4MB in the end (delta: -9.0MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2022-11-16 10:54:24,582 INFO L158 Benchmark]: Witness Printer took 6.42ms. Allocated memory is still 163.6MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 10:54:24,585 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 127.9MB. Free memory was 108.5MB in the beginning and 108.3MB in the end (delta: 188.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 636.42ms. Allocated memory is still 127.9MB. Free memory was 90.6MB in the beginning and 93.3MB in the end (delta: -2.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.48ms. Allocated memory is still 127.9MB. Free memory was 93.3MB in the beginning and 91.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.96ms. Allocated memory is still 127.9MB. Free memory was 91.1MB in the beginning and 90.2MB in the end (delta: 923.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 413.22ms. Allocated memory is still 127.9MB. Free memory was 89.6MB in the beginning and 76.9MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4174.27ms. Allocated memory was 127.9MB in the beginning and 163.6MB in the end (delta: 35.7MB). Free memory was 76.3MB in the beginning and 85.4MB in the end (delta: -9.0MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * Witness Printer took 6.42ms. Allocated memory is still 163.6MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.5s, 74 PlacesBefore, 19 PlacesAfterwards, 72 TransitionsBefore, 15 TransitionsAfterwards, 384 CoEnabledTransitionPairs, 6 FixpointIterations, 42 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 78 TotalNumberOfCompositions, 674 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 528, independent: 475, independent conditional: 0, independent unconditional: 475, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 309, independent: 281, independent conditional: 0, independent unconditional: 281, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 309, independent: 275, independent conditional: 0, independent unconditional: 275, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 34, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 177, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 152, dependent conditional: 0, dependent unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 528, independent: 194, independent conditional: 0, independent unconditional: 194, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 309, unknown conditional: 0, unknown unconditional: 309] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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: [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 int glob1 = 0; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 1) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 95 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s 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 [2022-11-16 10:54:24,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/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_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 10:54:26,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 10:54:26,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 10:54:26,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 10:54:26,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 10:54:26,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 10:54:26,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 10:54:26,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 10:54:26,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 10:54:26,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 10:54:26,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 10:54:26,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 10:54:26,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 10:54:26,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 10:54:26,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 10:54:26,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 10:54:26,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 10:54:26,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 10:54:26,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 10:54:26,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 10:54:26,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 10:54:26,993 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 10:54:26,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 10:54:26,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 10:54:26,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 10:54:27,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 10:54:27,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 10:54:27,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 10:54:27,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 10:54:27,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 10:54:27,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 10:54:27,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 10:54:27,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 10:54:27,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 10:54:27,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 10:54:27,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 10:54:27,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 10:54:27,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 10:54:27,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 10:54:27,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 10:54:27,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 10:54:27,012 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-16 10:54:27,062 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 10:54:27,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 10:54:27,063 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 10:54:27,063 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 10:54:27,064 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 10:54:27,064 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 10:54:27,065 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 10:54:27,065 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 10:54:27,066 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 10:54:27,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 10:54:27,066 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 10:54:27,067 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 10:54:27,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 10:54:27,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 10:54:27,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 10:54:27,068 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 10:54:27,068 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 10:54:27,068 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 10:54:27,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 10:54:27,069 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 10:54:27,069 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 10:54:27,069 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 10:54:27,070 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 10:54:27,070 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 10:54:27,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 10:54:27,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 10:54:27,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 10:54:27,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:54:27,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 10:54:27,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 10:54:27,078 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 10:54:27,078 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 10:54:27,079 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 10:54:27,079 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa [2022-11-16 10:54:27,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 10:54:27,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 10:54:27,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 10:54:27,543 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 10:54:27,546 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 10:54:27,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2022-11-16 10:54:27,628 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/data/ce850fd4b/659d332f6b5140139ce82cacadf277ba/FLAG11c1129e8 [2022-11-16 10:54:28,216 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 10:54:28,220 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2022-11-16 10:54:28,232 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/data/ce850fd4b/659d332f6b5140139ce82cacadf277ba/FLAG11c1129e8 [2022-11-16 10:54:28,514 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/data/ce850fd4b/659d332f6b5140139ce82cacadf277ba [2022-11-16 10:54:28,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 10:54:28,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 10:54:28,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 10:54:28,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 10:54:28,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 10:54:28,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:54:28" (1/1) ... [2022-11-16 10:54:28,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a263c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:28, skipping insertion in model container [2022-11-16 10:54:28,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:54:28" (1/1) ... [2022-11-16 10:54:28,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 10:54:28,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 10:54:28,793 WARN L229 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_f208a825-cb18-43e7-bea1-fe778326905d/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2022-11-16 10:54:28,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:54:29,014 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 10:54:29,027 WARN L229 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_f208a825-cb18-43e7-bea1-fe778326905d/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2022-11-16 10:54:29,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:54:29,095 INFO L208 MainTranslator]: Completed translation [2022-11-16 10:54:29,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:29 WrapperNode [2022-11-16 10:54:29,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 10:54:29,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 10:54:29,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 10:54:29,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 10:54:29,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:29" (1/1) ... [2022-11-16 10:54:29,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:29" (1/1) ... [2022-11-16 10:54:29,151 INFO L138 Inliner]: procedures = 167, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-11-16 10:54:29,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 10:54:29,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 10:54:29,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 10:54:29,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 10:54:29,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:29" (1/1) ... [2022-11-16 10:54:29,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:29" (1/1) ... [2022-11-16 10:54:29,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:29" (1/1) ... [2022-11-16 10:54:29,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:29" (1/1) ... [2022-11-16 10:54:29,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:29" (1/1) ... [2022-11-16 10:54:29,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:29" (1/1) ... [2022-11-16 10:54:29,182 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:29" (1/1) ... [2022-11-16 10:54:29,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:29" (1/1) ... [2022-11-16 10:54:29,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 10:54:29,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 10:54:29,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 10:54:29,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 10:54:29,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:29" (1/1) ... [2022-11-16 10:54:29,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:54:29,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:54:29,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 10:54:29,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 10:54:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-16 10:54:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 10:54:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 10:54:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 10:54:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 10:54:29,275 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 10:54:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 10:54:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-16 10:54:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 10:54:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-16 10:54:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 10:54:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 10:54:29,281 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 10:54:29,507 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 10:54:29,509 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 10:54:29,782 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 10:54:29,789 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 10:54:29,789 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 10:54:29,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:54:29 BoogieIcfgContainer [2022-11-16 10:54:29,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 10:54:29,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 10:54:29,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 10:54:29,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 10:54:29,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:54:28" (1/3) ... [2022-11-16 10:54:29,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ad9793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:54:29, skipping insertion in model container [2022-11-16 10:54:29,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:29" (2/3) ... [2022-11-16 10:54:29,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ad9793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:54:29, skipping insertion in model container [2022-11-16 10:54:29,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:54:29" (3/3) ... [2022-11-16 10:54:29,800 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2022-11-16 10:54:29,819 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 10:54:29,819 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-16 10:54:29,819 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 10:54:29,920 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 10:54:29,949 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 10:54:29,963 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 72 transitions, 152 flow [2022-11-16 10:54:29,966 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 72 transitions, 152 flow [2022-11-16 10:54:29,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 72 transitions, 152 flow [2022-11-16 10:54:30,015 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2022-11-16 10:54:30,015 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 10:54:30,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 71 events. 2/71 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 38 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2022-11-16 10:54:30,021 INFO L119 LiptonReduction]: Number of co-enabled transitions 368 [2022-11-16 10:54:35,183 INFO L134 LiptonReduction]: Checked pairs total: 653 [2022-11-16 10:54:35,184 INFO L136 LiptonReduction]: Total number of compositions: 73 [2022-11-16 10:54:35,192 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 15 transitions, 38 flow [2022-11-16 10:54:35,202 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 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) [2022-11-16 10:54:35,219 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 10:54:35,226 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6a51392b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 10:54:35,226 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-16 10:54:35,228 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 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) [2022-11-16 10:54:35,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-16 10:54:35,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:54:35,234 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-16 10:54:35,234 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-16 10:54:35,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:35,240 INFO L85 PathProgramCache]: Analyzing trace with hash 279, now seen corresponding path program 1 times [2022-11-16 10:54:35,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 10:54:35,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264994044] [2022-11-16 10:54:35,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:35,253 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 [2022-11-16 10:54:35,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 10:54:35,255 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 10:54:35,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:54:35,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:35,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 10:54:35,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:54:35,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:54:35,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:54:35,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 10:54:35,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264994044] [2022-11-16 10:54:35,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1264994044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:35,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:35,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-16 10:54:35,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478958910] [2022-11-16 10:54:35,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:35,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 10:54:35,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 10:54:35,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 10:54:35,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 10:54:35,368 INFO L87 Difference]: Start difference. First operand has 26 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 25 states have internal predecessors, (37), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-16 10:54:35,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:54:35,433 INFO L93 Difference]: Finished difference Result 24 states and 35 transitions. [2022-11-16 10:54:35,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 10:54:35,436 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2022-11-16 10:54:35,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:54:35,455 INFO L225 Difference]: With dead ends: 24 [2022-11-16 10:54:35,456 INFO L226 Difference]: Without dead ends: 24 [2022-11-16 10:54:35,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 10:54:35,460 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 10:54:35,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 10:54:35,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-16 10:54:35,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-16 10:54:35,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 23 states have internal predecessors, (35), 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) [2022-11-16 10:54:35,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 35 transitions. [2022-11-16 10:54:35,506 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 35 transitions. Word has length 1 [2022-11-16 10:54:35,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:54:35,507 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 35 transitions. [2022-11-16 10:54:35,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-16 10:54:35,507 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2022-11-16 10:54:35,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 10:54:35,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:54:35,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 10:54:35,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:54:35,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:54:35,730 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-16 10:54:35,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:35,731 INFO L85 PathProgramCache]: Analyzing trace with hash 275779, now seen corresponding path program 1 times [2022-11-16 10:54:35,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 10:54:35,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1989663619] [2022-11-16 10:54:35,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:35,732 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 [2022-11-16 10:54:35,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 10:54:35,733 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 10:54:35,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:54:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 10:54:35,801 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 10:54:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 10:54:35,847 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-16 10:54:35,847 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 10:54:35,849 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2022-11-16 10:54:35,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2022-11-16 10:54:35,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2022-11-16 10:54:35,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2022-11-16 10:54:35,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2022-11-16 10:54:35,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2022-11-16 10:54:35,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-11-16 10:54:35,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2022-11-16 10:54:35,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/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)] Forceful destruction successful, exit code 0 [2022-11-16 10:54:36,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:54:36,069 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 10:54:36,074 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 10:54:36,074 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 10:54:36,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 10:54:36 BasicIcfg [2022-11-16 10:54:36,089 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 10:54:36,090 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 10:54:36,090 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 10:54:36,091 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 10:54:36,091 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:54:29" (3/4) ... [2022-11-16 10:54:36,097 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 10:54:36,097 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 10:54:36,101 INFO L158 Benchmark]: Toolchain (without parser) took 7578.37ms. Allocated memory was 65.0MB in the beginning and 92.3MB in the end (delta: 27.3MB). Free memory was 44.3MB in the beginning and 63.5MB in the end (delta: -19.2MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2022-11-16 10:54:36,102 INFO L158 Benchmark]: CDTParser took 0.81ms. Allocated memory is still 65.0MB. Free memory was 46.3MB in the beginning and 46.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 10:54:36,103 INFO L158 Benchmark]: CACSL2BoogieTranslator took 574.68ms. Allocated memory is still 65.0MB. Free memory was 44.2MB in the beginning and 39.9MB in the end (delta: 4.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 10:54:36,104 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.46ms. Allocated memory is still 65.0MB. Free memory was 39.9MB in the beginning and 37.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 10:54:36,108 INFO L158 Benchmark]: Boogie Preprocessor took 33.89ms. Allocated memory is still 65.0MB. Free memory was 37.8MB in the beginning and 36.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 10:54:36,111 INFO L158 Benchmark]: RCFGBuilder took 604.12ms. Allocated memory is still 65.0MB. Free memory was 36.1MB in the beginning and 40.8MB in the end (delta: -4.8MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2022-11-16 10:54:36,115 INFO L158 Benchmark]: TraceAbstraction took 6296.16ms. Allocated memory was 65.0MB in the beginning and 92.3MB in the end (delta: 27.3MB). Free memory was 40.3MB in the beginning and 63.5MB in the end (delta: -23.2MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2022-11-16 10:54:36,116 INFO L158 Benchmark]: Witness Printer took 7.39ms. Allocated memory is still 92.3MB. Free memory is still 63.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 10:54:36,118 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81ms. Allocated memory is still 65.0MB. Free memory was 46.3MB in the beginning and 46.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 574.68ms. Allocated memory is still 65.0MB. Free memory was 44.2MB in the beginning and 39.9MB in the end (delta: 4.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.46ms. Allocated memory is still 65.0MB. Free memory was 39.9MB in the beginning and 37.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.89ms. Allocated memory is still 65.0MB. Free memory was 37.8MB in the beginning and 36.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 604.12ms. Allocated memory is still 65.0MB. Free memory was 36.1MB in the beginning and 40.8MB in the end (delta: -4.8MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6296.16ms. Allocated memory was 65.0MB in the beginning and 92.3MB in the end (delta: 27.3MB). Free memory was 40.3MB in the beginning and 63.5MB in the end (delta: -23.2MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. * Witness Printer took 7.39ms. Allocated memory is still 92.3MB. Free memory is still 63.5MB. 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: 5.2s, 74 PlacesBefore, 19 PlacesAfterwards, 72 TransitionsBefore, 15 TransitionsAfterwards, 368 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 73 TotalNumberOfCompositions, 653 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 487, independent: 435, independent conditional: 0, independent unconditional: 435, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 293, independent: 272, independent conditional: 0, independent unconditional: 272, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 293, independent: 266, independent conditional: 0, independent unconditional: 266, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 27, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 192, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 170, dependent conditional: 0, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 487, independent: 163, independent conditional: 0, independent unconditional: 163, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 293, unknown conditional: 0, unknown unconditional: 293] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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: [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 int glob1 = 0; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={7:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 1) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 94 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, 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 [2022-11-16 10:54:36,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a825-cb18-43e7-bea1-fe778326905d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample