./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 21:31:05,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:31:05,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:31:05,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:31:05,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:31:05,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:31:05,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:31:05,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:31:05,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:31:05,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:31:05,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:31:05,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:31:05,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:31:05,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:31:05,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:31:05,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:31:05,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:31:05,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:31:05,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:31:05,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:31:05,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:31:05,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:31:05,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:31:05,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:31:05,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:31:05,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:31:05,107 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:31:05,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:31:05,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:31:05,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:31:05,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:31:05,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:31:05,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:31:05,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:31:05,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:31:05,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:31:05,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:31:05,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:31:05,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:31:05,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:31:05,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:31:05,112 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 21:31:05,125 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:31:05,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:31:05,126 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:31:05,126 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:31:05,126 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:31:05,126 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:31:05,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:31:05,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:31:05,127 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:31:05,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:31:05,127 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:31:05,127 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:31:05,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:31:05,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:31:05,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:31:05,128 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 21:31:05,128 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 21:31:05,128 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 21:31:05,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:31:05,128 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 21:31:05,128 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:31:05,128 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:31:05,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:31:05,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:31:05,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:31:05,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:31:05,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:31:05,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:31:05,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:31:05,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:31:05,129 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:31:05,129 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:31:05,129 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:31:05,129 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:31:05,129 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 [2022-12-13 21:31:05,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:31:05,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:31:05,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:31:05,322 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:31:05,323 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:31:05,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2022-12-13 21:31:07,944 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:31:08,093 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:31:08,094 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2022-12-13 21:31:08,101 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/data/438d104f6/bc3d10600f3f4424868fbb5602b15d88/FLAG2228526dd [2022-12-13 21:31:08,112 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/data/438d104f6/bc3d10600f3f4424868fbb5602b15d88 [2022-12-13 21:31:08,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:31:08,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:31:08,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:31:08,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:31:08,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:31:08,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:31:08" (1/1) ... [2022-12-13 21:31:08,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46ac9b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:08, skipping insertion in model container [2022-12-13 21:31:08,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:31:08" (1/1) ... [2022-12-13 21:31:08,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:31:08,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:31:08,257 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i[1103,1116] [2022-12-13 21:31:08,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:31:08,361 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:31:08,371 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i[1103,1116] [2022-12-13 21:31:08,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:31:08,418 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:31:08,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:08 WrapperNode [2022-12-13 21:31:08,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:31:08,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:31:08,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:31:08,419 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:31:08,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:08" (1/1) ... [2022-12-13 21:31:08,435 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:08" (1/1) ... [2022-12-13 21:31:08,450 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-12-13 21:31:08,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:31:08,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:31:08,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:31:08,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:31:08,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:08" (1/1) ... [2022-12-13 21:31:08,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:08" (1/1) ... [2022-12-13 21:31:08,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:08" (1/1) ... [2022-12-13 21:31:08,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:08" (1/1) ... [2022-12-13 21:31:08,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:08" (1/1) ... [2022-12-13 21:31:08,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:08" (1/1) ... [2022-12-13 21:31:08,465 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:08" (1/1) ... [2022-12-13 21:31:08,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:08" (1/1) ... [2022-12-13 21:31:08,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:31:08,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:31:08,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:31:08,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:31:08,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:08" (1/1) ... [2022-12-13 21:31:08,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:31:08,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:31:08,494 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:31:08,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:31:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 21:31:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 21:31:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 21:31:08,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:31:08,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 21:31:08,527 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 21:31:08,527 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 21:31:08,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 21:31:08,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:31:08,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:31:08,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:31:08,528 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 21:31:08,632 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:31:08,634 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:31:08,770 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:31:08,777 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:31:08,777 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 21:31:08,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:31:08 BoogieIcfgContainer [2022-12-13 21:31:08,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:31:08,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:31:08,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:31:08,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:31:08,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:31:08" (1/3) ... [2022-12-13 21:31:08,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d810a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:31:08, skipping insertion in model container [2022-12-13 21:31:08,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:08" (2/3) ... [2022-12-13 21:31:08,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d810a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:31:08, skipping insertion in model container [2022-12-13 21:31:08,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:31:08" (3/3) ... [2022-12-13 21:31:08,787 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_neg.i [2022-12-13 21:31:08,804 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:31:08,804 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 21:31:08,804 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 21:31:08,848 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 21:31:08,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 79 transitions, 166 flow [2022-12-13 21:31:08,912 INFO L130 PetriNetUnfolder]: 1/78 cut-off events. [2022-12-13 21:31:08,912 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 21:31:08,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 78 events. 1/78 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-12-13 21:31:08,916 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 79 transitions, 166 flow [2022-12-13 21:31:08,919 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 73 transitions, 152 flow [2022-12-13 21:31:08,921 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 21:31:08,929 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 73 transitions, 152 flow [2022-12-13 21:31:08,931 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 73 transitions, 152 flow [2022-12-13 21:31:08,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 73 transitions, 152 flow [2022-12-13 21:31:08,949 INFO L130 PetriNetUnfolder]: 1/73 cut-off events. [2022-12-13 21:31:08,949 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 21:31:08,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 73 events. 1/73 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-12-13 21:31:08,959 INFO L119 LiptonReduction]: Number of co-enabled transitions 504 [2022-12-13 21:31:10,932 INFO L134 LiptonReduction]: Checked pairs total: 1592 [2022-12-13 21:31:10,932 INFO L136 LiptonReduction]: Total number of compositions: 68 [2022-12-13 21:31:10,943 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:31:10,947 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@62995ab1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:31:10,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 21:31:10,948 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 21:31:10,948 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:31:10,948 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:31:10,949 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 21:31:10,949 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2022-12-13 21:31:10,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:31:10,953 INFO L85 PathProgramCache]: Analyzing trace with hash 276, now seen corresponding path program 1 times [2022-12-13 21:31:10,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:31:10,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061539961] [2022-12-13 21:31:10,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:31:10,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:31:11,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:31:11,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:31:11,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:31:11,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061539961] [2022-12-13 21:31:11,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061539961] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:31:11,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:31:11,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 21:31:11,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514815640] [2022-12-13 21:31:11,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:31:11,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 21:31:11,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:31:11,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 21:31:11,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:31:11,059 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 147 [2022-12-13 21:31:11,060 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 46 flow. Second operand has 2 states, 2 states have (on average 75.5) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:31:11,060 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:31:11,060 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 147 [2022-12-13 21:31:11,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:31:11,097 INFO L130 PetriNetUnfolder]: 24/78 cut-off events. [2022-12-13 21:31:11,097 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 21:31:11,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 78 events. 24/78 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 234 event pairs, 24 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 132. Up to 63 conditions per place. [2022-12-13 21:31:11,100 INFO L137 encePairwiseOnDemand]: 145/147 looper letters, 14 selfloop transitions, 0 changer transitions 0/18 dead transitions. [2022-12-13 21:31:11,100 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 18 transitions, 70 flow [2022-12-13 21:31:11,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 21:31:11,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 21:31:11,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 166 transitions. [2022-12-13 21:31:11,112 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.564625850340136 [2022-12-13 21:31:11,113 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 166 transitions. [2022-12-13 21:31:11,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 166 transitions. [2022-12-13 21:31:11,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:31:11,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 166 transitions. [2022-12-13 21:31:11,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 83.0) internal successors, (166), 2 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:31:11,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:31:11,124 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:31:11,126 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 46 flow. Second operand 2 states and 166 transitions. [2022-12-13 21:31:11,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 18 transitions, 70 flow [2022-12-13 21:31:11,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 66 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 21:31:11,130 INFO L231 Difference]: Finished difference. Result has 21 places, 18 transitions, 38 flow [2022-12-13 21:31:11,132 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=38, PETRI_PLACES=21, PETRI_TRANSITIONS=18} [2022-12-13 21:31:11,136 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, -3 predicate places. [2022-12-13 21:31:11,136 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 18 transitions, 38 flow [2022-12-13 21:31:11,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 75.5) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:31:11,136 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:31:11,136 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 21:31:11,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:31:11,137 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2022-12-13 21:31:11,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:31:11,138 INFO L85 PathProgramCache]: Analyzing trace with hash 8430561, now seen corresponding path program 1 times [2022-12-13 21:31:11,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:31:11,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451490188] [2022-12-13 21:31:11,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:31:11,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:31:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:31:11,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:31:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:31:11,216 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:31:11,216 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:31:11,218 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2022-12-13 21:31:11,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-12-13 21:31:11,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-12-13 21:31:11,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-12-13 21:31:11,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-12-13 21:31:11,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-12-13 21:31:11,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2022-12-13 21:31:11,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 21:31:11,222 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 21:31:11,227 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 21:31:11,227 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:31:11,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:31:11 BasicIcfg [2022-12-13 21:31:11,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:31:11,247 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:31:11,247 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:31:11,247 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:31:11,248 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:31:08" (3/4) ... [2022-12-13 21:31:11,251 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 21:31:11,251 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:31:11,252 INFO L158 Benchmark]: Toolchain (without parser) took 3136.50ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 94.2MB in the beginning and 99.9MB in the end (delta: -5.7MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2022-12-13 21:31:11,252 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:31:11,253 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.45ms. Allocated memory is still 134.2MB. Free memory was 94.2MB in the beginning and 75.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 21:31:11,253 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.97ms. Allocated memory is still 134.2MB. Free memory was 75.3MB in the beginning and 73.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:31:11,254 INFO L158 Benchmark]: Boogie Preprocessor took 16.50ms. Allocated memory is still 134.2MB. Free memory was 73.2MB in the beginning and 72.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:31:11,255 INFO L158 Benchmark]: RCFGBuilder took 310.77ms. Allocated memory is still 134.2MB. Free memory was 72.0MB in the beginning and 58.5MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 21:31:11,255 INFO L158 Benchmark]: TraceAbstraction took 2465.01ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 58.1MB in the beginning and 99.9MB in the end (delta: -41.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:31:11,256 INFO L158 Benchmark]: Witness Printer took 4.20ms. Allocated memory is still 165.7MB. Free memory is still 99.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:31:11,258 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.45ms. Allocated memory is still 134.2MB. Free memory was 94.2MB in the beginning and 75.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.97ms. Allocated memory is still 134.2MB. Free memory was 75.3MB in the beginning and 73.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.50ms. Allocated memory is still 134.2MB. Free memory was 73.2MB in the beginning and 72.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 310.77ms. Allocated memory is still 134.2MB. Free memory was 72.0MB in the beginning and 58.5MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2465.01ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 58.1MB in the beginning and 99.9MB in the end (delta: -41.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.20ms. Allocated memory is still 165.7MB. Free memory is still 99.9MB. 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: 2.0s, 76 PlacesBefore, 24 PlacesAfterwards, 73 TransitionsBefore, 20 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 6 FixpointIterations, 45 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 68 TotalNumberOfCompositions, 1592 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 722, independent: 572, independent conditional: 0, independent unconditional: 572, dependent: 150, dependent conditional: 0, dependent unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 289, independent: 263, independent conditional: 0, independent unconditional: 263, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 722, independent: 309, independent conditional: 0, independent unconditional: 309, dependent: 124, dependent conditional: 0, dependent unconditional: 124, unknown: 289, unknown conditional: 0, unknown unconditional: 289] , Statistics on independence cache: Total cache size (in pairs): 28, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L699] CALL 0 __VERIFIER_assert(!(glob1 == 0)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] - 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: 695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: 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, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, 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, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 14 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=46occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 21:31:11,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 21:31:13,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:31:13,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:31:13,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:31:13,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:31:13,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:31:13,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:31:13,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:31:13,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:31:13,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:31:13,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:31:13,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:31:13,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:31:13,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:31:13,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:31:13,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:31:13,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:31:13,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:31:13,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:31:13,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:31:13,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:31:13,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:31:13,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:31:13,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:31:13,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:31:13,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:31:13,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:31:13,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:31:13,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:31:13,092 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:31:13,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:31:13,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:31:13,094 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:31:13,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:31:13,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:31:13,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:31:13,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:31:13,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:31:13,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:31:13,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:31:13,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:31:13,099 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 21:31:13,121 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:31:13,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:31:13,121 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:31:13,121 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:31:13,122 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:31:13,122 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:31:13,123 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:31:13,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:31:13,123 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:31:13,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:31:13,124 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:31:13,124 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:31:13,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:31:13,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:31:13,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:31:13,125 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 21:31:13,125 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 21:31:13,125 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 21:31:13,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:31:13,125 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 21:31:13,126 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 21:31:13,126 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 21:31:13,126 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:31:13,126 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:31:13,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:31:13,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:31:13,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:31:13,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:31:13,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:31:13,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:31:13,128 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 21:31:13,128 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 21:31:13,128 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:31:13,128 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:31:13,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:31:13,128 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 21:31:13,129 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:31:13,129 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 [2022-12-13 21:31:13,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:31:13,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:31:13,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:31:13,379 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:31:13,380 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:31:13,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2022-12-13 21:31:15,928 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:31:16,092 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:31:16,093 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2022-12-13 21:31:16,102 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/data/52c0ef04a/f8b8904f927844d98b9966f3ed372fa6/FLAGe35117cd3 [2022-12-13 21:31:16,112 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/data/52c0ef04a/f8b8904f927844d98b9966f3ed372fa6 [2022-12-13 21:31:16,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:31:16,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:31:16,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:31:16,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:31:16,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:31:16,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:31:16" (1/1) ... [2022-12-13 21:31:16,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ecf9a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:16, skipping insertion in model container [2022-12-13 21:31:16,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:31:16" (1/1) ... [2022-12-13 21:31:16,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:31:16,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:31:16,248 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i[1103,1116] [2022-12-13 21:31:16,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:31:16,338 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:31:16,347 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i[1103,1116] [2022-12-13 21:31:16,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:31:16,401 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:31:16,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:16 WrapperNode [2022-12-13 21:31:16,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:31:16,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:31:16,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:31:16,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:31:16,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:16" (1/1) ... [2022-12-13 21:31:16,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:16" (1/1) ... [2022-12-13 21:31:16,433 INFO L138 Inliner]: procedures = 166, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2022-12-13 21:31:16,433 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:31:16,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:31:16,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:31:16,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:31:16,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:16" (1/1) ... [2022-12-13 21:31:16,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:16" (1/1) ... [2022-12-13 21:31:16,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:16" (1/1) ... [2022-12-13 21:31:16,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:16" (1/1) ... [2022-12-13 21:31:16,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:16" (1/1) ... [2022-12-13 21:31:16,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:16" (1/1) ... [2022-12-13 21:31:16,450 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:16" (1/1) ... [2022-12-13 21:31:16,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:16" (1/1) ... [2022-12-13 21:31:16,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:31:16,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:31:16,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:31:16,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:31:16,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:16" (1/1) ... [2022-12-13 21:31:16,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:31:16,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:31:16,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:31:16,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:31:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-13 21:31:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 21:31:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:31:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 21:31:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 21:31:16,505 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 21:31:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 21:31:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 21:31:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 21:31:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-13 21:31:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:31:16,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:31:16,506 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 21:31:16,611 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:31:16,613 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:31:16,783 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:31:16,788 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:31:16,788 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 21:31:16,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:31:16 BoogieIcfgContainer [2022-12-13 21:31:16,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:31:16,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:31:16,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:31:16,793 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:31:16,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:31:16" (1/3) ... [2022-12-13 21:31:16,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ead0d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:31:16, skipping insertion in model container [2022-12-13 21:31:16,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:16" (2/3) ... [2022-12-13 21:31:16,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ead0d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:31:16, skipping insertion in model container [2022-12-13 21:31:16,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:31:16" (3/3) ... [2022-12-13 21:31:16,795 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_neg.i [2022-12-13 21:31:16,809 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:31:16,809 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 21:31:16,809 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 21:31:16,848 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 21:31:16,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 80 transitions, 168 flow [2022-12-13 21:31:16,901 INFO L130 PetriNetUnfolder]: 1/79 cut-off events. [2022-12-13 21:31:16,901 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 21:31:16,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 79 events. 1/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-12-13 21:31:16,904 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 80 transitions, 168 flow [2022-12-13 21:31:16,907 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 74 transitions, 154 flow [2022-12-13 21:31:16,910 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 21:31:16,917 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 74 transitions, 154 flow [2022-12-13 21:31:16,919 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 74 transitions, 154 flow [2022-12-13 21:31:16,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 74 transitions, 154 flow [2022-12-13 21:31:16,937 INFO L130 PetriNetUnfolder]: 1/74 cut-off events. [2022-12-13 21:31:16,937 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 21:31:16,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 74 events. 1/74 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-12-13 21:31:16,938 INFO L119 LiptonReduction]: Number of co-enabled transitions 504 [2022-12-13 21:31:21,002 INFO L134 LiptonReduction]: Checked pairs total: 1592 [2022-12-13 21:31:21,002 INFO L136 LiptonReduction]: Total number of compositions: 67 [2022-12-13 21:31:21,012 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:31:21,016 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@66bc89b2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:31:21,016 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 21:31:21,018 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 21:31:21,018 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:31:21,018 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:31:21,018 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 21:31:21,019 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2022-12-13 21:31:21,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:31:21,022 INFO L85 PathProgramCache]: Analyzing trace with hash 277, now seen corresponding path program 1 times [2022-12-13 21:31:21,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:31:21,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532770714] [2022-12-13 21:31:21,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:31:21,031 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:31:21,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:31:21,032 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:31:21,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 21:31:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:31:21,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 21:31:21,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:31:21,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:31:21,076 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:31:21,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:31:21,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532770714] [2022-12-13 21:31:21,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532770714] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:31:21,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:31:21,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 21:31:21,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717289839] [2022-12-13 21:31:21,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:31:21,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 21:31:21,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:31:21,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 21:31:21,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:31:21,102 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2022-12-13 21:31:21,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 46 flow. Second operand has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:31:21,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:31:21,103 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2022-12-13 21:31:21,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:31:21,144 INFO L130 PetriNetUnfolder]: 24/78 cut-off events. [2022-12-13 21:31:21,144 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 21:31:21,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 78 events. 24/78 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 233 event pairs, 24 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 132. Up to 63 conditions per place. [2022-12-13 21:31:21,145 INFO L137 encePairwiseOnDemand]: 145/147 looper letters, 14 selfloop transitions, 0 changer transitions 0/18 dead transitions. [2022-12-13 21:31:21,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 18 transitions, 70 flow [2022-12-13 21:31:21,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 21:31:21,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 21:31:21,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 168 transitions. [2022-12-13 21:31:21,155 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2022-12-13 21:31:21,155 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 168 transitions. [2022-12-13 21:31:21,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 168 transitions. [2022-12-13 21:31:21,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:31:21,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 168 transitions. [2022-12-13 21:31:21,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 84.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:31:21,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:31:21,163 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:31:21,164 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 46 flow. Second operand 2 states and 168 transitions. [2022-12-13 21:31:21,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 18 transitions, 70 flow [2022-12-13 21:31:21,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 66 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 21:31:21,167 INFO L231 Difference]: Finished difference. Result has 21 places, 18 transitions, 38 flow [2022-12-13 21:31:21,168 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=38, PETRI_PLACES=21, PETRI_TRANSITIONS=18} [2022-12-13 21:31:21,170 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, -3 predicate places. [2022-12-13 21:31:21,170 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 18 transitions, 38 flow [2022-12-13 21:31:21,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:31:21,171 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:31:21,171 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 21:31:21,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 21:31:21,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:31:21,373 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2022-12-13 21:31:21,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:31:21,375 INFO L85 PathProgramCache]: Analyzing trace with hash 8462306, now seen corresponding path program 1 times [2022-12-13 21:31:21,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:31:21,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513055592] [2022-12-13 21:31:21,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:31:21,378 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:31:21,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:31:21,382 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:31:21,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 21:31:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:31:21,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:31:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:31:21,500 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 21:31:21,500 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:31:21,502 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2022-12-13 21:31:21,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-12-13 21:31:21,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-12-13 21:31:21,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-12-13 21:31:21,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-12-13 21:31:21,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-12-13 21:31:21,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2022-12-13 21:31:21,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 21:31:21,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:31:21,706 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 21:31:21,719 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 21:31:21,719 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:31:21,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:31:21 BasicIcfg [2022-12-13 21:31:21,753 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:31:21,753 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:31:21,753 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:31:21,753 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:31:21,754 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:31:16" (3/4) ... [2022-12-13 21:31:21,757 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 21:31:21,757 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:31:21,757 INFO L158 Benchmark]: Toolchain (without parser) took 5642.05ms. Allocated memory is still 71.3MB. Free memory was 51.1MB in the beginning and 40.0MB in the end (delta: 11.2MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2022-12-13 21:31:21,758 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 58.7MB. Free memory is still 37.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:31:21,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.10ms. Allocated memory is still 71.3MB. Free memory was 50.9MB in the beginning and 47.4MB in the end (delta: 3.5MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2022-12-13 21:31:21,758 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.13ms. Allocated memory is still 71.3MB. Free memory was 47.4MB in the beginning and 45.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:31:21,759 INFO L158 Benchmark]: Boogie Preprocessor took 18.95ms. Allocated memory is still 71.3MB. Free memory was 45.3MB in the beginning and 43.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:31:21,759 INFO L158 Benchmark]: RCFGBuilder took 335.92ms. Allocated memory is still 71.3MB. Free memory was 43.5MB in the beginning and 47.4MB in the end (delta: -3.9MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2022-12-13 21:31:21,759 INFO L158 Benchmark]: TraceAbstraction took 4961.86ms. Allocated memory is still 71.3MB. Free memory was 46.8MB in the beginning and 40.4MB in the end (delta: 6.3MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2022-12-13 21:31:21,760 INFO L158 Benchmark]: Witness Printer took 3.52ms. Allocated memory is still 71.3MB. Free memory was 40.4MB in the beginning and 40.0MB in the end (delta: 493.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:31:21,762 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 58.7MB. Free memory is still 37.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.10ms. Allocated memory is still 71.3MB. Free memory was 50.9MB in the beginning and 47.4MB in the end (delta: 3.5MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.13ms. Allocated memory is still 71.3MB. Free memory was 47.4MB in the beginning and 45.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.95ms. Allocated memory is still 71.3MB. Free memory was 45.3MB in the beginning and 43.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 335.92ms. Allocated memory is still 71.3MB. Free memory was 43.5MB in the beginning and 47.4MB in the end (delta: -3.9MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4961.86ms. Allocated memory is still 71.3MB. Free memory was 46.8MB in the beginning and 40.4MB in the end (delta: 6.3MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Witness Printer took 3.52ms. Allocated memory is still 71.3MB. Free memory was 40.4MB in the beginning and 40.0MB in the end (delta: 493.4kB). 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: 4.1s, 77 PlacesBefore, 24 PlacesAfterwards, 74 TransitionsBefore, 20 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 6 FixpointIterations, 44 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 67 TotalNumberOfCompositions, 1592 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 759, independent: 609, independent conditional: 0, independent unconditional: 609, dependent: 150, dependent conditional: 0, dependent unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 286, independent: 261, independent conditional: 0, independent unconditional: 261, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 759, independent: 348, independent conditional: 0, independent unconditional: 348, dependent: 125, dependent conditional: 0, dependent unconditional: 125, unknown: 286, unknown conditional: 0, unknown unconditional: 286] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={7:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L699] CALL 0 __VERIFIER_assert(!(glob1 == 0)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] - 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: 695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: 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, 96 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, 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, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 14 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=46occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 21:31:21,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6bd94d6-97d9-4aa7-944d-a4923e1549f5/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample