./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7244beec-6378-4e1e-8ce6-999ef90e8794/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7244beec-6378-4e1e-8ce6-999ef90e8794/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7244beec-6378-4e1e-8ce6-999ef90e8794/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7244beec-6378-4e1e-8ce6-999ef90e8794/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7244beec-6378-4e1e-8ce6-999ef90e8794/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7244beec-6378-4e1e-8ce6-999ef90e8794/bin/uautomizer-J5u9QxTXDZ --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 c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 --- 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-dbf71c6-m [2022-10-17 10:13:34,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:13:34,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:13:34,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:13:34,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:13:34,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:13:34,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:13:34,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:13:34,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:13:34,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:13:34,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:13:34,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:13:34,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:13:34,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:13:34,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:13:34,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:13:34,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:13:34,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:13:34,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:13:34,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:13:34,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:13:34,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:13:34,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:13:34,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:13:34,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:13:34,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:13:34,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:13:34,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:13:34,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:13:34,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:13:34,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:13:34,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:13:34,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:13:34,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:13:34,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:13:34,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:13:34,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:13:34,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:13:34,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:13:34,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:13:34,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:13:34,863 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7244beec-6378-4e1e-8ce6-999ef90e8794/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:13:34,887 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:13:34,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:13:34,888 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:13:34,888 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:13:34,889 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:13:34,889 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:13:34,890 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:13:34,890 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:13:34,890 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:13:34,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:13:34,890 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:13:34,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:13:34,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:13:34,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:13:34,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:13:34,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:13:34,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:13:34,892 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:13:34,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:13:34,892 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:13:34,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:13:34,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:13:34,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:13:34,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:13:34,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:13:34,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:13:34,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:13:34,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:13:34,894 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:13:34,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:13:34,895 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:13:34,895 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:13:34,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:13:34,895 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_7244beec-6378-4e1e-8ce6-999ef90e8794/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7244beec-6378-4e1e-8ce6-999ef90e8794/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 [2022-10-17 10:13:35,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:13:35,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:13:35,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:13:35,206 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:13:35,207 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:13:35,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7244beec-6378-4e1e-8ce6-999ef90e8794/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-10-17 10:13:35,281 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7244beec-6378-4e1e-8ce6-999ef90e8794/bin/uautomizer-J5u9QxTXDZ/data/595b86fa8/a0c1a4cd91c34c06965a3f4dc8cfbea0/FLAG79e05a5d8 [2022-10-17 10:13:35,955 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:13:35,957 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7244beec-6378-4e1e-8ce6-999ef90e8794/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-10-17 10:13:35,991 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7244beec-6378-4e1e-8ce6-999ef90e8794/bin/uautomizer-J5u9QxTXDZ/data/595b86fa8/a0c1a4cd91c34c06965a3f4dc8cfbea0/FLAG79e05a5d8 [2022-10-17 10:13:36,211 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7244beec-6378-4e1e-8ce6-999ef90e8794/bin/uautomizer-J5u9QxTXDZ/data/595b86fa8/a0c1a4cd91c34c06965a3f4dc8cfbea0 [2022-10-17 10:13:36,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:13:36,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:13:36,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:13:36,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:13:36,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:13:36,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:13:36" (1/1) ... [2022-10-17 10:13:36,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2487e1af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:36, skipping insertion in model container [2022-10-17 10:13:36,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:13:36" (1/1) ... [2022-10-17 10:13:36,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:13:36,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:13:36,499 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-10-17 10:13:37,053 WARN L230 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_7244beec-6378-4e1e-8ce6-999ef90e8794/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-10-17 10:13:37,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:13:37,119 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:13:37,131 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-10-17 10:13:37,199 WARN L230 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_7244beec-6378-4e1e-8ce6-999ef90e8794/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-10-17 10:13:37,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:13:37,317 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:13:37,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:37 WrapperNode [2022-10-17 10:13:37,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:13:37,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:13:37,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:13:37,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:13:37,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:37" (1/1) ... [2022-10-17 10:13:37,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:37" (1/1) ... [2022-10-17 10:13:37,391 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-10-17 10:13:37,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:13:37,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:13:37,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:13:37,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:13:37,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:37" (1/1) ... [2022-10-17 10:13:37,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:37" (1/1) ... [2022-10-17 10:13:37,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:37" (1/1) ... [2022-10-17 10:13:37,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:37" (1/1) ... [2022-10-17 10:13:37,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:37" (1/1) ... [2022-10-17 10:13:37,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:37" (1/1) ... [2022-10-17 10:13:37,442 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:37" (1/1) ... [2022-10-17 10:13:37,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:37" (1/1) ... [2022-10-17 10:13:37,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:13:37,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:13:37,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:13:37,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:13:37,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:37" (1/1) ... [2022-10-17 10:13:37,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:13:37,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7244beec-6378-4e1e-8ce6-999ef90e8794/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:13:37,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7244beec-6378-4e1e-8ce6-999ef90e8794/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:13:37,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7244beec-6378-4e1e-8ce6-999ef90e8794/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:13:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-10-17 10:13:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:13:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-10-17 10:13:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:13:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-10-17 10:13:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:13:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:13:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:13:37,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:13:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-10-17 10:13:37,557 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-10-17 10:13:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:13:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:13:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:13:37,559 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 10:13:37,920 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:13:37,923 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:13:38,321 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:13:38,398 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:13:38,399 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:13:38,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:13:38 BoogieIcfgContainer [2022-10-17 10:13:38,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:13:38,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:13:38,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:13:38,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:13:38,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:13:36" (1/3) ... [2022-10-17 10:13:38,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@759f6609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:13:38, skipping insertion in model container [2022-10-17 10:13:38,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:37" (2/3) ... [2022-10-17 10:13:38,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@759f6609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:13:38, skipping insertion in model container [2022-10-17 10:13:38,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:13:38" (3/3) ... [2022-10-17 10:13:38,411 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2022-10-17 10:13:38,420 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 10:13:38,430 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:13:38,431 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-17 10:13:38,431 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 10:13:38,523 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-10-17 10:13:38,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 175 transitions, 366 flow [2022-10-17 10:13:38,669 INFO L130 PetriNetUnfolder]: 8/220 cut-off events. [2022-10-17 10:13:38,670 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-10-17 10:13:38,678 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 6. Compared 376 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. [2022-10-17 10:13:38,679 INFO L82 GeneralOperation]: Start removeDead. Operand has 175 places, 175 transitions, 366 flow [2022-10-17 10:13:38,710 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 161 transitions, 334 flow [2022-10-17 10:13:38,734 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:13:38,741 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;@44a87997, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:13:38,741 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-10-17 10:13:38,792 INFO L130 PetriNetUnfolder]: 0/107 cut-off events. [2022-10-17 10:13:38,793 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:13:38,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:13:38,794 INFO L208 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] [2022-10-17 10:13:38,794 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-10-17 10:13:38,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:38,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1773378929, now seen corresponding path program 1 times [2022-10-17 10:13:38,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:13:38,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832831183] [2022-10-17 10:13:38,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:13:38,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:13:39,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:39,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:13:39,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:13:39,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832831183] [2022-10-17 10:13:39,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832831183] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:13:39,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:13:39,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:13:39,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905197588] [2022-10-17 10:13:39,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:13:39,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:13:39,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:13:39,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:13:39,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:13:39,989 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 175 [2022-10-17 10:13:39,995 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 161 transitions, 334 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) [2022-10-17 10:13:39,995 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:13:39,995 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 175 [2022-10-17 10:13:39,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:13:40,881 INFO L130 PetriNetUnfolder]: 850/2034 cut-off events. [2022-10-17 10:13:40,882 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-10-17 10:13:40,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3561 conditions, 2034 events. 850/2034 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 13482 event pairs, 196 based on Foata normal form. 17/1998 useless extension candidates. Maximal degree in co-relation 3253. Up to 615 conditions per place. [2022-10-17 10:13:40,911 INFO L137 encePairwiseOnDemand]: 151/175 looper letters, 100 selfloop transitions, 48 changer transitions 0/245 dead transitions. [2022-10-17 10:13:40,911 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 245 transitions, 798 flow [2022-10-17 10:13:40,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-17 10:13:40,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-10-17 10:13:40,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1637 transitions. [2022-10-17 10:13:40,938 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6681632653061225 [2022-10-17 10:13:40,939 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1637 transitions. [2022-10-17 10:13:40,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1637 transitions. [2022-10-17 10:13:40,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:13:40,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1637 transitions. [2022-10-17 10:13:40,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 116.92857142857143) internal successors, (1637), 14 states have internal predecessors, (1637), 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) [2022-10-17 10:13:40,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 175.0) internal successors, (2625), 15 states have internal predecessors, (2625), 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) [2022-10-17 10:13:40,979 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 175.0) internal successors, (2625), 15 states have internal predecessors, (2625), 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) [2022-10-17 10:13:40,981 INFO L175 Difference]: Start difference. First operand has 163 places, 161 transitions, 334 flow. Second operand 14 states and 1637 transitions. [2022-10-17 10:13:40,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 245 transitions, 798 flow [2022-10-17 10:13:40,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 245 transitions, 790 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-10-17 10:13:41,001 INFO L231 Difference]: Finished difference. Result has 177 places, 194 transitions, 615 flow [2022-10-17 10:13:41,004 INFO L270 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=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=615, PETRI_PLACES=177, PETRI_TRANSITIONS=194} [2022-10-17 10:13:41,010 INFO L287 CegarLoopForPetriNet]: 163 programPoint places, 14 predicate places. [2022-10-17 10:13:41,010 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 194 transitions, 615 flow [2022-10-17 10:13:41,011 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) [2022-10-17 10:13:41,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:13:41,012 INFO L208 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, 1, 1, 1] [2022-10-17 10:13:41,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:13:41,013 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-10-17 10:13:41,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:41,014 INFO L85 PathProgramCache]: Analyzing trace with hash -238227831, now seen corresponding path program 1 times [2022-10-17 10:13:41,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:13:41,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251934118] [2022-10-17 10:13:41,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:13:41,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:13:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:41,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:13:41,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:13:41,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251934118] [2022-10-17 10:13:41,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251934118] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:13:41,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:13:41,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:13:41,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538347784] [2022-10-17 10:13:41,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:13:41,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:13:41,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:13:41,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:13:41,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:13:41,520 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 175 [2022-10-17 10:13:41,522 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 194 transitions, 615 flow. Second operand has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 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) [2022-10-17 10:13:41,528 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:13:41,528 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 175 [2022-10-17 10:13:41,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:13:42,496 INFO L130 PetriNetUnfolder]: 1104/2643 cut-off events. [2022-10-17 10:13:42,496 INFO L131 PetriNetUnfolder]: For 10776/10838 co-relation queries the response was YES. [2022-10-17 10:13:42,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9141 conditions, 2643 events. 1104/2643 cut-off events. For 10776/10838 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 19171 event pairs, 258 based on Foata normal form. 47/2662 useless extension candidates. Maximal degree in co-relation 8135. Up to 858 conditions per place. [2022-10-17 10:13:42,527 INFO L137 encePairwiseOnDemand]: 156/175 looper letters, 75 selfloop transitions, 44 changer transitions 72/287 dead transitions. [2022-10-17 10:13:42,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 287 transitions, 1736 flow [2022-10-17 10:13:42,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-17 10:13:42,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-10-17 10:13:42,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1406 transitions. [2022-10-17 10:13:42,533 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6695238095238095 [2022-10-17 10:13:42,534 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1406 transitions. [2022-10-17 10:13:42,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1406 transitions. [2022-10-17 10:13:42,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:13:42,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1406 transitions. [2022-10-17 10:13:42,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 117.16666666666667) internal successors, (1406), 12 states have internal predecessors, (1406), 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) [2022-10-17 10:13:42,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 175.0) internal successors, (2275), 13 states have internal predecessors, (2275), 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) [2022-10-17 10:13:42,549 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 175.0) internal successors, (2275), 13 states have internal predecessors, (2275), 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) [2022-10-17 10:13:42,550 INFO L175 Difference]: Start difference. First operand has 177 places, 194 transitions, 615 flow. Second operand 12 states and 1406 transitions. [2022-10-17 10:13:42,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 287 transitions, 1736 flow [2022-10-17 10:13:42,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 287 transitions, 1736 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-10-17 10:13:42,576 INFO L231 Difference]: Finished difference. Result has 196 places, 197 transitions, 923 flow [2022-10-17 10:13:42,576 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=923, PETRI_PLACES=196, PETRI_TRANSITIONS=197} [2022-10-17 10:13:42,577 INFO L287 CegarLoopForPetriNet]: 163 programPoint places, 33 predicate places. [2022-10-17 10:13:42,577 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 197 transitions, 923 flow [2022-10-17 10:13:42,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 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) [2022-10-17 10:13:42,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:13:42,578 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:13:42,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:13:42,579 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-10-17 10:13:42,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:42,580 INFO L85 PathProgramCache]: Analyzing trace with hash 74396295, now seen corresponding path program 1 times [2022-10-17 10:13:42,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:13:42,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016073608] [2022-10-17 10:13:42,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:13:42,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:13:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:42,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:13:42,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:13:42,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016073608] [2022-10-17 10:13:42,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016073608] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:13:42,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:13:42,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:13:42,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033525836] [2022-10-17 10:13:42,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:13:42,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:13:42,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:13:42,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:13:42,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:13:42,768 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 175 [2022-10-17 10:13:42,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 197 transitions, 923 flow. Second operand has 5 states, 5 states have (on average 148.2) internal successors, (741), 5 states have internal predecessors, (741), 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) [2022-10-17 10:13:42,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:13:42,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 175 [2022-10-17 10:13:42,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:13:42,896 INFO L130 PetriNetUnfolder]: 57/330 cut-off events. [2022-10-17 10:13:42,896 INFO L131 PetriNetUnfolder]: For 849/929 co-relation queries the response was YES. [2022-10-17 10:13:42,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 750 conditions, 330 events. 57/330 cut-off events. For 849/929 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1241 event pairs, 12 based on Foata normal form. 0/312 useless extension candidates. Maximal degree in co-relation 731. Up to 54 conditions per place. [2022-10-17 10:13:42,901 INFO L137 encePairwiseOnDemand]: 170/175 looper letters, 23 selfloop transitions, 4 changer transitions 0/136 dead transitions. [2022-10-17 10:13:42,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 136 transitions, 447 flow [2022-10-17 10:13:42,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:13:42,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:13:42,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 904 transitions. [2022-10-17 10:13:42,905 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8609523809523809 [2022-10-17 10:13:42,907 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 904 transitions. [2022-10-17 10:13:42,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 904 transitions. [2022-10-17 10:13:42,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:13:42,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 904 transitions. [2022-10-17 10:13:42,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 150.66666666666666) internal successors, (904), 6 states have internal predecessors, (904), 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) [2022-10-17 10:13:42,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 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) [2022-10-17 10:13:42,917 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 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) [2022-10-17 10:13:42,917 INFO L175 Difference]: Start difference. First operand has 196 places, 197 transitions, 923 flow. Second operand 6 states and 904 transitions. [2022-10-17 10:13:42,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 136 transitions, 447 flow [2022-10-17 10:13:42,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 136 transitions, 338 flow, removed 40 selfloop flow, removed 17 redundant places. [2022-10-17 10:13:42,928 INFO L231 Difference]: Finished difference. Result has 141 places, 128 transitions, 276 flow [2022-10-17 10:13:42,928 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=276, PETRI_PLACES=141, PETRI_TRANSITIONS=128} [2022-10-17 10:13:42,931 INFO L287 CegarLoopForPetriNet]: 163 programPoint places, -22 predicate places. [2022-10-17 10:13:42,931 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 128 transitions, 276 flow [2022-10-17 10:13:42,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 148.2) internal successors, (741), 5 states have internal predecessors, (741), 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) [2022-10-17 10:13:42,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:13:42,932 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:13:42,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:13:42,932 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-10-17 10:13:42,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:42,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1976380995, now seen corresponding path program 1 times [2022-10-17 10:13:42,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:13:42,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046340699] [2022-10-17 10:13:42,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:13:42,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:13:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:43,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:13:43,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:13:43,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046340699] [2022-10-17 10:13:43,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046340699] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:13:43,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:13:43,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:13:43,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541478199] [2022-10-17 10:13:43,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:13:43,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:13:43,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:13:43,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:13:43,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:13:43,409 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 175 [2022-10-17 10:13:43,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 128 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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) [2022-10-17 10:13:43,410 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:13:43,410 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 175 [2022-10-17 10:13:43,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:13:43,540 INFO L130 PetriNetUnfolder]: 123/446 cut-off events. [2022-10-17 10:13:43,541 INFO L131 PetriNetUnfolder]: For 65/68 co-relation queries the response was YES. [2022-10-17 10:13:43,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 818 conditions, 446 events. 123/446 cut-off events. For 65/68 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1770 event pairs, 94 based on Foata normal form. 0/420 useless extension candidates. Maximal degree in co-relation 810. Up to 227 conditions per place. [2022-10-17 10:13:43,545 INFO L137 encePairwiseOnDemand]: 169/175 looper letters, 37 selfloop transitions, 5 changer transitions 0/138 dead transitions. [2022-10-17 10:13:43,545 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 138 transitions, 385 flow [2022-10-17 10:13:43,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:13:43,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:13:43,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 436 transitions. [2022-10-17 10:13:43,547 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8304761904761905 [2022-10-17 10:13:43,547 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 436 transitions. [2022-10-17 10:13:43,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 436 transitions. [2022-10-17 10:13:43,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:13:43,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 436 transitions. [2022-10-17 10:13:43,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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) [2022-10-17 10:13:43,555 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) [2022-10-17 10:13:43,556 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) [2022-10-17 10:13:43,556 INFO L175 Difference]: Start difference. First operand has 141 places, 128 transitions, 276 flow. Second operand 3 states and 436 transitions. [2022-10-17 10:13:43,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 138 transitions, 385 flow [2022-10-17 10:13:43,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 138 transitions, 378 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-10-17 10:13:43,560 INFO L231 Difference]: Finished difference. Result has 141 places, 132 transitions, 311 flow [2022-10-17 10:13:43,562 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=141, PETRI_TRANSITIONS=132} [2022-10-17 10:13:43,564 INFO L287 CegarLoopForPetriNet]: 163 programPoint places, -22 predicate places. [2022-10-17 10:13:43,564 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 132 transitions, 311 flow [2022-10-17 10:13:43,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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) [2022-10-17 10:13:43,564 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:13:43,565 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:13:43,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:13:43,565 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-10-17 10:13:43,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:43,566 INFO L85 PathProgramCache]: Analyzing trace with hash 219140614, now seen corresponding path program 1 times [2022-10-17 10:13:43,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:13:43,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31515738] [2022-10-17 10:13:43,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:13:43,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:13:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:43,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:13:43,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:13:43,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31515738] [2022-10-17 10:13:43,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31515738] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:13:43,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:13:43,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:13:43,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735274925] [2022-10-17 10:13:43,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:13:43,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:13:43,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:13:43,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:13:43,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:13:43,875 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 175 [2022-10-17 10:13:43,875 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 132 transitions, 311 flow. Second operand has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 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) [2022-10-17 10:13:43,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:13:43,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 175 [2022-10-17 10:13:43,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:13:44,022 INFO L130 PetriNetUnfolder]: 130/465 cut-off events. [2022-10-17 10:13:44,023 INFO L131 PetriNetUnfolder]: For 206/212 co-relation queries the response was YES. [2022-10-17 10:13:44,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 963 conditions, 465 events. 130/465 cut-off events. For 206/212 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1875 event pairs, 98 based on Foata normal form. 1/444 useless extension candidates. Maximal degree in co-relation 954. Up to 239 conditions per place. [2022-10-17 10:13:44,027 INFO L137 encePairwiseOnDemand]: 169/175 looper letters, 39 selfloop transitions, 7 changer transitions 0/142 dead transitions. [2022-10-17 10:13:44,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 142 transitions, 448 flow [2022-10-17 10:13:44,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:13:44,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:13:44,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions. [2022-10-17 10:13:44,029 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8285714285714286 [2022-10-17 10:13:44,029 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 435 transitions. [2022-10-17 10:13:44,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 435 transitions. [2022-10-17 10:13:44,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:13:44,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 435 transitions. [2022-10-17 10:13:44,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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) [2022-10-17 10:13:44,033 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) [2022-10-17 10:13:44,034 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) [2022-10-17 10:13:44,034 INFO L175 Difference]: Start difference. First operand has 141 places, 132 transitions, 311 flow. Second operand 3 states and 435 transitions. [2022-10-17 10:13:44,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 142 transitions, 448 flow [2022-10-17 10:13:44,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 142 transitions, 424 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-10-17 10:13:44,040 INFO L231 Difference]: Finished difference. Result has 143 places, 137 transitions, 357 flow [2022-10-17 10:13:44,040 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=357, PETRI_PLACES=143, PETRI_TRANSITIONS=137} [2022-10-17 10:13:44,043 INFO L287 CegarLoopForPetriNet]: 163 programPoint places, -20 predicate places. [2022-10-17 10:13:44,043 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 137 transitions, 357 flow [2022-10-17 10:13:44,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 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) [2022-10-17 10:13:44,043 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:13:44,043 INFO L208 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, 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] [2022-10-17 10:13:44,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:13:44,044 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-10-17 10:13:44,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:44,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1168566715, now seen corresponding path program 1 times [2022-10-17 10:13:44,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:13:44,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651795258] [2022-10-17 10:13:44,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:13:44,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:13:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:13:44,194 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:13:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:13:44,315 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:13:44,316 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:13:44,317 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-10-17 10:13:44,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-10-17 10:13:44,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-10-17 10:13:44,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-10-17 10:13:44,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-10-17 10:13:44,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-10-17 10:13:44,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-10-17 10:13:44,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-10-17 10:13:44,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:13:44,320 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-10-17 10:13:44,327 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-10-17 10:13:44,327 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:13:44,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:13:44 BasicIcfg [2022-10-17 10:13:44,432 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:13:44,433 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:13:44,433 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:13:44,433 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:13:44,434 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:13:38" (3/4) ... [2022-10-17 10:13:44,435 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 10:13:44,527 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7244beec-6378-4e1e-8ce6-999ef90e8794/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 10:13:44,527 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:13:44,528 INFO L158 Benchmark]: Toolchain (without parser) took 8308.25ms. Allocated memory was 117.4MB in the beginning and 199.2MB in the end (delta: 81.8MB). Free memory was 78.8MB in the beginning and 150.2MB in the end (delta: -71.5MB). Peak memory consumption was 107.4MB. Max. memory is 16.1GB. [2022-10-17 10:13:44,528 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory was 98.6MB in the beginning and 98.5MB in the end (delta: 89.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:13:44,529 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1095.48ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 51.8MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-10-17 10:13:44,529 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.31ms. Allocated memory is still 117.4MB. Free memory was 51.8MB in the beginning and 47.9MB in the end (delta: 3.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:13:44,530 INFO L158 Benchmark]: Boogie Preprocessor took 60.95ms. Allocated memory is still 117.4MB. Free memory was 47.9MB in the beginning and 93.4MB in the end (delta: -45.5MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-10-17 10:13:44,530 INFO L158 Benchmark]: RCFGBuilder took 947.67ms. Allocated memory is still 117.4MB. Free memory was 93.4MB in the beginning and 66.1MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-10-17 10:13:44,530 INFO L158 Benchmark]: TraceAbstraction took 6028.02ms. Allocated memory was 117.4MB in the beginning and 199.2MB in the end (delta: 81.8MB). Free memory was 65.2MB in the beginning and 53.3MB in the end (delta: 11.9MB). Peak memory consumption was 92.2MB. Max. memory is 16.1GB. [2022-10-17 10:13:44,531 INFO L158 Benchmark]: Witness Printer took 94.21ms. Allocated memory is still 199.2MB. Free memory was 53.3MB in the beginning and 150.2MB in the end (delta: -96.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:13:44,533 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory was 98.6MB in the beginning and 98.5MB in the end (delta: 89.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1095.48ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 51.8MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.31ms. Allocated memory is still 117.4MB. Free memory was 51.8MB in the beginning and 47.9MB in the end (delta: 3.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.95ms. Allocated memory is still 117.4MB. Free memory was 47.9MB in the beginning and 93.4MB in the end (delta: -45.5MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * RCFGBuilder took 947.67ms. Allocated memory is still 117.4MB. Free memory was 93.4MB in the beginning and 66.1MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 6028.02ms. Allocated memory was 117.4MB in the beginning and 199.2MB in the end (delta: 81.8MB). Free memory was 65.2MB in the beginning and 53.3MB in the end (delta: 11.9MB). Peak memory consumption was 92.2MB. Max. memory is 16.1GB. * Witness Printer took 94.21ms. Allocated memory is still 199.2MB. Free memory was 53.3MB in the beginning and 150.2MB in the end (delta: -96.9MB). Peak memory consumption was 2.1MB. 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={6:0}, ret=0, t1={3:0}, t2={4:0}] [L1749] CALL, EXPR 0 my_drv_probe(&data) [L1706] 0 struct device *d = &data->dev; VAL [d={6:24}, data={6:0}, data={6:0}, t1={3:0}, t2={4:0}] [L1708] 0 data->shared.a = 0 VAL [d={6:24}, data={6:0}, data={6:0}, t1={3:0}, t2={4:0}] [L1709] 0 data->shared.b = 0 VAL [d={6:24}, data={6:0}, data={6:0}, t1={3:0}, t2={4:0}] [L1710] 0 int res = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, d={6:24}, data={6:0}, data={6:0}, res=0, t1={3:0}, t2={4:0}] [L1711] COND FALSE 0 !(\read(res)) VAL [d={6:24}, data={6:0}, data={6:0}, res=0, t1={3:0}, t2={4:0}] [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={6:24}, d={6:24}, data={6:0}, data={6:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=7, res=0, t1={3:0}, t2={4:0}] [L1689] 1 struct device *dev = (struct device*)arg; VAL [arg={6:24}, arg={6:24}, dev={6:24}, t1={3:0}, t2={4:0}] [L1690] 1 struct my_data *data; VAL [arg={6:24}, arg={6:24}, dev={6:24}, t1={3:0}, t2={4:0}] [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, dev={6:24}, 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={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={3:0}, t2={4:0}] [L1694] 1 data->shared.a = 1 VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={3:0}, t2={4:0}] [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, d={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, pthread_create(&t2, ((void *)0), my_callback, (void *)d)=8, res=0, t1={3:0}, t2={4:0}] [L1715] 0 return 0; VAL [\result=0, __mptr={6:24}, arg={6:24}, arg={6:24}, d={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, res=0, t1={3:0}, t2={4:0}] [L1749] RET, EXPR 0 my_drv_probe(&data) [L1749] 0 probe_ret = my_drv_probe(&data) VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, dev={6:24}, my_drv_probe(&data)=0, probe_ret=0, ret=0, t1={3:0}, t2={4:0}] [L1750] COND TRUE 0 probe_ret==0 VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, dev={6:24}, probe_ret=0, ret=0, t1={3:0}, t2={4:0}] [L1751] CALL 0 my_drv_disconnect(&data) [L1697] EXPR 1 data->shared.b [L1697] 1 int lb = data->shared.b; [L1700] 1 data->shared.b = lb + 1 VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, lb=0, t1={3:0}, t2={4:0}] [L1703] 1 return 0; VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, lb=0, t1={3:0}, t2={4:0}] [L1721] 0 void *status; VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, lb=0, status={5:0}, t1={3:0}, t2={4:0}] [L1722] 0 \read(t1) VAL [\read(t1)=7, \result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, lb=0, status={5:0}, t1={3:0}, t2={4:0}] [L1722] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\read(t1)=7, \result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, lb=0, pthread_join(t1, &status)={0:0}, status={5:0}, t1={3:0}, t2={4:0}] [L1724] 0 data->shared.a = 3 VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, lb=0, status={5:0}, t1={3:0}, t2={4:0}] [L1689] 2 struct device *dev = (struct device*)arg; VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, lb=0, t1={3:0}, t2={4:0}] [L1690] 2 struct my_data *data; VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, lb=0, t1={3:0}, t2={4:0}] [L1691] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, lb=0, t1={3:0}, t2={4:0}] [L1691] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, lb=0, t1={3:0}, t2={4:0}] [L1694] 2 data->shared.a = 1 VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, lb=0, t1={3:0}, t2={4:0}] [L1727] 0 data->shared.b = 3 VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, lb=0, status={5:0}, t1={3:0}, t2={4:0}] [L1730] EXPR 0 data->shared.a [L1730] CALL 0 ldv_assert(data->shared.a==3) [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, expression=0, lb=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: 5.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 209 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 209 mSDsluCounter, 389 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 339 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 560 IncrementalHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 135 mSDtfsCounter, 560 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=923occurred in iteration=2, InterpolantAutomatonStates: 38, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 478 NumberOfCodeBlocks, 478 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 378 ConstructedInterpolants, 0 QuantifiedInterpolants, 722 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2022-10-17 10:13:44,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7244beec-6378-4e1e-8ce6-999ef90e8794/bin/uautomizer-J5u9QxTXDZ/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