./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c9d2f8-8bd6-4c4e-a9fb-5e50a25f1367/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c9d2f8-8bd6-4c4e-a9fb-5e50a25f1367/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c9d2f8-8bd6-4c4e-a9fb-5e50a25f1367/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c9d2f8-8bd6-4c4e-a9fb-5e50a25f1367/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c9d2f8-8bd6-4c4e-a9fb-5e50a25f1367/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c9d2f8-8bd6-4c4e-a9fb-5e50a25f1367/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:58:23,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:58:23,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:58:23,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:58:23,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:58:23,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:58:23,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:58:23,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:58:23,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:58:23,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:58:23,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:58:23,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:58:23,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:58:23,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:58:23,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:58:23,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:58:23,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:58:23,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:58:23,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:58:23,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:58:23,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:58:23,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:58:23,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:58:23,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:58:23,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:58:23,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:58:23,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:58:23,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:58:23,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:58:23,827 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:58:23,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:58:23,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:58:23,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:58:23,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:58:23,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:58:23,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:58:23,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:58:23,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:58:23,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:58:23,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:58:23,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:58:23,850 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c9d2f8-8bd6-4c4e-a9fb-5e50a25f1367/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:58:23,890 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:58:23,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:58:23,890 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:58:23,891 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:58:23,891 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:58:23,891 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:58:23,892 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:58:23,892 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:58:23,893 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:58:23,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:58:23,893 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:58:23,893 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:58:23,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:58:23,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:58:23,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:58:23,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:58:23,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:58:23,895 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:58:23,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:58:23,895 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:58:23,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:58:23,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:58:23,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:58:23,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:58:23,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:58:23,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:58:23,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:58:23,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:58:23,897 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:58:23,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:58:23,898 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:58:23,898 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:58:23,898 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:58:23,899 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c9d2f8-8bd6-4c4e-a9fb-5e50a25f1367/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c9d2f8-8bd6-4c4e-a9fb-5e50a25f1367/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 [2022-11-16 11:58:24,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:58:24,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:58:24,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:58:24,248 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:58:24,249 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:58:24,251 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c9d2f8-8bd6-4c4e-a9fb-5e50a25f1367/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-11-16 11:58:24,330 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c9d2f8-8bd6-4c4e-a9fb-5e50a25f1367/bin/uautomizer-tPACEb0tL8/data/aa07c6010/89d46ba90096493e962bf794227dea42/FLAG6f5ebe2b2 [2022-11-16 11:58:25,146 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:58:25,151 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c9d2f8-8bd6-4c4e-a9fb-5e50a25f1367/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-11-16 11:58:25,183 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c9d2f8-8bd6-4c4e-a9fb-5e50a25f1367/bin/uautomizer-tPACEb0tL8/data/aa07c6010/89d46ba90096493e962bf794227dea42/FLAG6f5ebe2b2 [2022-11-16 11:58:25,283 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c9d2f8-8bd6-4c4e-a9fb-5e50a25f1367/bin/uautomizer-tPACEb0tL8/data/aa07c6010/89d46ba90096493e962bf794227dea42 [2022-11-16 11:58:25,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:58:25,288 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:58:25,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:58:25,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:58:25,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:58:25,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:58:25" (1/1) ... [2022-11-16 11:58:25,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f20ad16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:25, skipping insertion in model container [2022-11-16 11:58:25,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:58:25" (1/1) ... [2022-11-16 11:58:25,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:58:25,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:58:25,603 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 11:58:26,146 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c9d2f8-8bd6-4c4e-a9fb-5e50a25f1367/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-11-16 11:58:26,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:58:26,207 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:58:26,221 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 11:58:26,262 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c9d2f8-8bd6-4c4e-a9fb-5e50a25f1367/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-11-16 11:58:26,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:58:26,421 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:58:26,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:26 WrapperNode [2022-11-16 11:58:26,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:58:26,423 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:58:26,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:58:26,424 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:58:26,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:26" (1/1) ... [2022-11-16 11:58:26,458 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:26" (1/1) ... [2022-11-16 11:58:26,488 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-11-16 11:58:26,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:58:26,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:58:26,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:58:26,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:58:26,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:26" (1/1) ... [2022-11-16 11:58:26,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:26" (1/1) ... [2022-11-16 11:58:26,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:26" (1/1) ... [2022-11-16 11:58:26,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:26" (1/1) ... [2022-11-16 11:58:26,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:26" (1/1) ... [2022-11-16 11:58:26,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:26" (1/1) ... [2022-11-16 11:58:26,526 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:26" (1/1) ... [2022-11-16 11:58:26,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:26" (1/1) ... [2022-11-16 11:58:26,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:58:26,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:58:26,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:58:26,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:58:26,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:26" (1/1) ... [2022-11-16 11:58:26,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:58:26,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c9d2f8-8bd6-4c4e-a9fb-5e50a25f1367/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:58:26,599 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c9d2f8-8bd6-4c4e-a9fb-5e50a25f1367/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:58:26,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c9d2f8-8bd6-4c4e-a9fb-5e50a25f1367/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:58:26,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:58:26,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:58:26,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:58:26,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:58:26,656 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:58:26,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:58:26,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:58:26,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:58:26,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:58:26,657 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-16 11:58:26,658 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-16 11:58:26,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:58:26,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:58:26,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:58:26,660 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:58:27,137 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:58:27,144 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:58:27,588 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:58:27,640 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:58:27,643 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:58:27,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:58:27 BoogieIcfgContainer [2022-11-16 11:58:27,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:58:27,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:58:27,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:58:27,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:58:27,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:58:25" (1/3) ... [2022-11-16 11:58:27,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efe4b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:58:27, skipping insertion in model container [2022-11-16 11:58:27,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:26" (2/3) ... [2022-11-16 11:58:27,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efe4b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:58:27, skipping insertion in model container [2022-11-16 11:58:27,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:58:27" (3/3) ... [2022-11-16 11:58:27,656 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2022-11-16 11:58:27,665 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:58:27,677 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:58:27,677 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-16 11:58:27,677 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:58:27,738 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 11:58:27,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 175 transitions, 366 flow [2022-11-16 11:58:27,893 INFO L130 PetriNetUnfolder]: 8/220 cut-off events. [2022-11-16 11:58:27,893 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:58:27,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 220 events. 8/220 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 365 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2022-11-16 11:58:27,901 INFO L82 GeneralOperation]: Start removeDead. Operand has 175 places, 175 transitions, 366 flow [2022-11-16 11:58:27,915 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 161 transitions, 334 flow [2022-11-16 11:58:27,940 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:58:27,954 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@46823130, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:58:27,955 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-16 11:58:28,015 INFO L130 PetriNetUnfolder]: 0/93 cut-off events. [2022-11-16 11:58:28,015 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:58:28,015 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:58:28,016 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:58:28,017 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-16 11:58:28,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:28,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1804113549, now seen corresponding path program 1 times [2022-11-16 11:58:28,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:28,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905001118] [2022-11-16 11:58:28,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:28,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:29,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:58:29,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:58:29,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905001118] [2022-11-16 11:58:29,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905001118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:58:29,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:58:29,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:58:29,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769438924] [2022-11-16 11:58:29,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:58:29,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:58:29,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:58:29,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:58:29,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:58:29,084 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 175 [2022-11-16 11:58:29,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 161 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:58:29,092 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:58:29,092 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 175 [2022-11-16 11:58:29,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:58:29,724 INFO L130 PetriNetUnfolder]: 426/1382 cut-off events. [2022-11-16 11:58:29,724 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-16 11:58:29,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2155 conditions, 1382 events. 426/1382 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 9295 event pairs, 174 based on Foata normal form. 8/1273 useless extension candidates. Maximal degree in co-relation 1935. Up to 587 conditions per place. [2022-11-16 11:58:29,744 INFO L137 encePairwiseOnDemand]: 163/175 looper letters, 44 selfloop transitions, 8 changer transitions 0/169 dead transitions. [2022-11-16 11:58:29,744 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 169 transitions, 457 flow [2022-11-16 11:58:29,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:58:29,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:58:29,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 443 transitions. [2022-11-16 11:58:29,774 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8438095238095238 [2022-11-16 11:58:29,774 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 443 transitions. [2022-11-16 11:58:29,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 443 transitions. [2022-11-16 11:58:29,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:58:29,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 443 transitions. [2022-11-16 11:58:29,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:58:29,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:58:29,799 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:58:29,801 INFO L175 Difference]: Start difference. First operand has 163 places, 161 transitions, 334 flow. Second operand 3 states and 443 transitions. [2022-11-16 11:58:29,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 169 transitions, 457 flow [2022-11-16 11:58:29,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 169 transitions, 447 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:58:29,817 INFO L231 Difference]: Finished difference. Result has 160 places, 162 transitions, 376 flow [2022-11-16 11:58:29,819 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=160, PETRI_TRANSITIONS=162} [2022-11-16 11:58:29,826 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -3 predicate places. [2022-11-16 11:58:29,826 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 162 transitions, 376 flow [2022-11-16 11:58:29,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:58:29,827 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:58:29,827 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:58:29,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:58:29,828 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-16 11:58:29,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:29,829 INFO L85 PathProgramCache]: Analyzing trace with hash 92945538, now seen corresponding path program 1 times [2022-11-16 11:58:29,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:29,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033144702] [2022-11-16 11:58:29,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:29,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:30,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:58:30,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:58:30,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033144702] [2022-11-16 11:58:30,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033144702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:58:30,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:58:30,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:58:30,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535248897] [2022-11-16 11:58:30,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:58:30,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:58:30,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:58:30,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:58:30,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:58:30,272 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 175 [2022-11-16 11:58:30,273 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 162 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:58:30,279 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:58:30,279 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 175 [2022-11-16 11:58:30,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:58:30,820 INFO L130 PetriNetUnfolder]: 541/1797 cut-off events. [2022-11-16 11:58:30,821 INFO L131 PetriNetUnfolder]: For 512/637 co-relation queries the response was YES. [2022-11-16 11:58:30,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3432 conditions, 1797 events. 541/1797 cut-off events. For 512/637 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 13119 event pairs, 207 based on Foata normal form. 7/1690 useless extension candidates. Maximal degree in co-relation 534. Up to 716 conditions per place. [2022-11-16 11:58:30,836 INFO L137 encePairwiseOnDemand]: 166/175 looper letters, 48 selfloop transitions, 14 changer transitions 0/179 dead transitions. [2022-11-16 11:58:30,836 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 179 transitions, 569 flow [2022-11-16 11:58:30,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:58:30,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:58:30,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 439 transitions. [2022-11-16 11:58:30,839 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8361904761904762 [2022-11-16 11:58:30,839 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 439 transitions. [2022-11-16 11:58:30,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 439 transitions. [2022-11-16 11:58:30,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:58:30,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 439 transitions. [2022-11-16 11:58:30,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:58:30,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:58:30,843 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:58:30,844 INFO L175 Difference]: Start difference. First operand has 160 places, 162 transitions, 376 flow. Second operand 3 states and 439 transitions. [2022-11-16 11:58:30,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 179 transitions, 569 flow [2022-11-16 11:58:30,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 179 transitions, 543 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:58:30,852 INFO L231 Difference]: Finished difference. Result has 162 places, 173 transitions, 482 flow [2022-11-16 11:58:30,852 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=482, PETRI_PLACES=162, PETRI_TRANSITIONS=173} [2022-11-16 11:58:30,853 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, -1 predicate places. [2022-11-16 11:58:30,853 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 173 transitions, 482 flow [2022-11-16 11:58:30,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:58:30,854 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:58:30,854 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:58:30,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:58:30,854 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-16 11:58:30,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:30,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1986640255, now seen corresponding path program 1 times [2022-11-16 11:58:30,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:30,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019540540] [2022-11-16 11:58:30,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:30,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:31,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:58:31,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:58:31,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019540540] [2022-11-16 11:58:31,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019540540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:58:31,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:58:31,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:58:31,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000672856] [2022-11-16 11:58:31,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:58:31,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:58:31,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:58:31,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:58:31,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:58:31,365 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 175 [2022-11-16 11:58:31,366 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 173 transitions, 482 flow. Second operand has 6 states, 6 states have (on average 108.66666666666667) internal successors, (652), 6 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:58:31,366 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:58:31,366 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 175 [2022-11-16 11:58:31,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:58:32,512 INFO L130 PetriNetUnfolder]: 1272/3157 cut-off events. [2022-11-16 11:58:32,512 INFO L131 PetriNetUnfolder]: For 2390/2839 co-relation queries the response was YES. [2022-11-16 11:58:32,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7619 conditions, 3157 events. 1272/3157 cut-off events. For 2390/2839 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 23019 event pairs, 223 based on Foata normal form. 11/3062 useless extension candidates. Maximal degree in co-relation 1069. Up to 929 conditions per place. [2022-11-16 11:58:32,537 INFO L137 encePairwiseOnDemand]: 154/175 looper letters, 119 selfloop transitions, 51 changer transitions 2/269 dead transitions. [2022-11-16 11:58:32,538 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 269 transitions, 1234 flow [2022-11-16 11:58:32,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:58:32,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:58:32,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1522 transitions. [2022-11-16 11:58:32,543 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.669010989010989 [2022-11-16 11:58:32,545 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1522 transitions. [2022-11-16 11:58:32,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1522 transitions. [2022-11-16 11:58:32,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:58:32,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1522 transitions. [2022-11-16 11:58:32,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.07692307692308) internal successors, (1522), 13 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:58:32,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 175.0) internal successors, (2450), 14 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:58:32,558 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 175.0) internal successors, (2450), 14 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:58:32,558 INFO L175 Difference]: Start difference. First operand has 162 places, 173 transitions, 482 flow. Second operand 13 states and 1522 transitions. [2022-11-16 11:58:32,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 269 transitions, 1234 flow [2022-11-16 11:58:32,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 269 transitions, 1190 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:58:32,572 INFO L231 Difference]: Finished difference. Result has 179 places, 213 transitions, 847 flow [2022-11-16 11:58:32,573 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=847, PETRI_PLACES=179, PETRI_TRANSITIONS=213} [2022-11-16 11:58:32,576 INFO L288 CegarLoopForPetriNet]: 163 programPoint places, 16 predicate places. [2022-11-16 11:58:32,576 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 213 transitions, 847 flow [2022-11-16 11:58:32,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.66666666666667) internal successors, (652), 6 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:58:32,577 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:58:32,577 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:58:32,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:58:32,578 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-16 11:58:32,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:32,581 INFO L85 PathProgramCache]: Analyzing trace with hash 791052689, now seen corresponding path program 1 times [2022-11-16 11:58:32,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:32,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124704956] [2022-11-16 11:58:32,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:32,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:32,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:58:32,660 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:58:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:58:32,761 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:58:32,762 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:58:32,763 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-11-16 11:58:32,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-11-16 11:58:32,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-11-16 11:58:32,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-11-16 11:58:32,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-11-16 11:58:32,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-11-16 11:58:32,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-11-16 11:58:32,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-11-16 11:58:32,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:58:32,774 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-16 11:58:32,782 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:58:32,782 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:58:32,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:58:32 BasicIcfg [2022-11-16 11:58:32,882 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:58:32,882 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:58:32,883 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:58:32,883 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:58:32,883 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:58:27" (3/4) ... [2022-11-16 11:58:32,885 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-16 11:58:32,971 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c9d2f8-8bd6-4c4e-a9fb-5e50a25f1367/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:58:32,971 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:58:32,972 INFO L158 Benchmark]: Toolchain (without parser) took 7683.24ms. Allocated memory was 123.7MB in the beginning and 209.7MB in the end (delta: 86.0MB). Free memory was 81.4MB in the beginning and 95.8MB in the end (delta: -14.4MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. [2022-11-16 11:58:32,972 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 123.7MB. Free memory was 101.1MB in the beginning and 101.0MB in the end (delta: 47.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:58:32,973 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1128.30ms. Allocated memory is still 123.7MB. Free memory was 81.2MB in the beginning and 53.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-16 11:58:32,973 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.78ms. Allocated memory is still 123.7MB. Free memory was 53.8MB in the beginning and 50.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:58:32,974 INFO L158 Benchmark]: Boogie Preprocessor took 71.62ms. Allocated memory is still 123.7MB. Free memory was 50.3MB in the beginning and 97.6MB in the end (delta: -47.3MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2022-11-16 11:58:32,975 INFO L158 Benchmark]: RCFGBuilder took 1084.58ms. Allocated memory was 123.7MB in the beginning and 163.6MB in the end (delta: 39.8MB). Free memory was 97.5MB in the beginning and 112.8MB in the end (delta: -15.2MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2022-11-16 11:58:32,975 INFO L158 Benchmark]: TraceAbstraction took 5232.75ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 111.8MB in the beginning and 105.2MB in the end (delta: 6.6MB). Peak memory consumption was 52.5MB. Max. memory is 16.1GB. [2022-11-16 11:58:32,976 INFO L158 Benchmark]: Witness Printer took 88.61ms. Allocated memory is still 209.7MB. Free memory was 105.2MB in the beginning and 95.8MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:58:32,980 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 123.7MB. Free memory was 101.1MB in the beginning and 101.0MB in the end (delta: 47.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1128.30ms. Allocated memory is still 123.7MB. Free memory was 81.2MB in the beginning and 53.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.78ms. Allocated memory is still 123.7MB. Free memory was 53.8MB in the beginning and 50.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.62ms. Allocated memory is still 123.7MB. Free memory was 50.3MB in the beginning and 97.6MB in the end (delta: -47.3MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * RCFGBuilder took 1084.58ms. Allocated memory was 123.7MB in the beginning and 163.6MB in the end (delta: 39.8MB). Free memory was 97.5MB in the beginning and 112.8MB in the end (delta: -15.2MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. * TraceAbstraction took 5232.75ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 111.8MB in the beginning and 105.2MB in the end (delta: 6.6MB). Peak memory consumption was 52.5MB. Max. memory is 16.1GB. * Witness Printer took 88.61ms. Allocated memory is still 209.7MB. Free memory was 105.2MB in the beginning and 95.8MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1675]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; VAL [t1={3:0}, t2={4:0}] [L1745] CALL, EXPR 0 my_drv_init() [L1739] 0 return 0; VAL [\result=0, t1={3:0}, t2={4:0}] [L1745] RET, EXPR 0 my_drv_init() [L1745] 0 int ret = my_drv_init(); VAL [my_drv_init()=0, ret=0, t1={3:0}, t2={4:0}] [L1746] COND TRUE 0 ret==0 VAL [ret=0, t1={3:0}, t2={4:0}] [L1747] 0 int probe_ret; VAL [ret=0, t1={3:0}, t2={4:0}] [L1748] 0 struct my_data data; VAL [data={5:0}, ret=0, t1={3:0}, t2={4:0}] [L1749] CALL 0 my_drv_probe(&data) [L1706] 0 struct device *d = &data->dev; VAL [d={5:24}, data={5:0}, data={5:0}, t1={3:0}, t2={4:0}] [L1708] 0 data->shared.a = 0 VAL [d={5:24}, data={5:0}, data={5:0}, t1={3:0}, t2={4:0}] [L1709] 0 data->shared.b = 0 VAL [d={5:24}, data={5:0}, data={5:0}, t1={3:0}, t2={4:0}] [L1710] 0 int res = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, d={5:24}, data={5:0}, data={5:0}, res=0, t1={3:0}, t2={4:0}] [L1711] COND FALSE 0 !(\read(res)) VAL [d={5:24}, data={5:0}, data={5:0}, res=0, t1={3:0}, t2={4:0}] [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=0, res=0, t1={3:0}, t2={4:0}] [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, pthread_create(&t2, ((void *)0), my_callback, (void *)d)=1, res=0, t1={3:0}, t2={4:0}] [L1716] 0 data->shared.a = 3 VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, res=0, t1={3:0}, t2={4:0}] [L1689] 1 struct device *dev = (struct device*)arg; VAL [arg={5:24}, arg={5:24}, dev={5:24}, t1={3:0}, t2={4:0}] [L1690] 1 struct my_data *data; VAL [arg={5:24}, arg={5:24}, dev={5:24}, t1={3:0}, t2={4:0}] [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, dev={5:24}, t1={3:0}, t2={4:0}] [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1={3:0}, t2={4:0}] [L1694] 1 data->shared.a = 1 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1={3:0}, t2={4:0}] [L1719] 0 data->shared.b = 3 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, res=0, t1={3:0}, t2={4:0}] [L1722] EXPR 0 data->shared.a [L1722] CALL 0 ldv_assert(data->shared.a==3) [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\old(expression)=0, __mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, expression=0, t1={3:0}, t2={4:0}] - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1714]: 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. - UnprovableResult [Line: 1713]: 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 4 procedures, 185 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 149 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 149 mSDsluCounter, 228 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 126 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 292 IncrementalHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 102 mSDtfsCounter, 292 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=847occurred in iteration=3, InterpolantAutomatonStates: 19, 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, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 240 NumberOfCodeBlocks, 240 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 172 ConstructedInterpolants, 0 QuantifiedInterpolants, 277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-16 11:58:33,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c9d2f8-8bd6-4c4e-a9fb-5e50a25f1367/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE