./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/reorder_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_68a4fa68-9997-4156-ae2d-ed672aee3c94/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a4fa68-9997-4156-ae2d-ed672aee3c94/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a4fa68-9997-4156-ae2d-ed672aee3c94/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a4fa68-9997-4156-ae2d-ed672aee3c94/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/reorder_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a4fa68-9997-4156-ae2d-ed672aee3c94/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a4fa68-9997-4156-ae2d-ed672aee3c94/bin/uautomizer-uyxdKDjOR8 --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 898f8e4708144102795278f9f1417651c36b4d3f17c0ba18e240a325ff6101b3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 12:20:05,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:20:05,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:20:05,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:20:05,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:20:05,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:20:05,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:20:05,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:20:05,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:20:05,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:20:05,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:20:05,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:20:05,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:20:05,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:20:05,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:20:05,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:20:05,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:20:05,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:20:05,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:20:05,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:20:05,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:20:05,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:20:05,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:20:05,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:20:05,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:20:05,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:20:05,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:20:05,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:20:05,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:20:05,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:20:05,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:20:05,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:20:05,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:20:05,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:20:05,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:20:05,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:20:05,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:20:05,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:20:05,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:20:05,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:20:05,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:20:05,483 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a4fa68-9997-4156-ae2d-ed672aee3c94/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 12:20:05,505 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:20:05,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:20:05,505 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:20:05,506 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:20:05,506 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:20:05,507 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:20:05,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:20:05,507 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:20:05,508 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:20:05,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:20:05,508 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:20:05,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:20:05,508 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:20:05,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:20:05,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:20:05,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:20:05,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:20:05,509 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:20:05,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:20:05,510 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:20:05,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:20:05,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:20:05,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:20:05,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:20:05,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:20:05,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:20:05,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:20:05,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:20:05,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:20:05,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:20:05,512 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:20:05,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:20:05,512 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:20:05,512 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:20:05,513 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:20:05,513 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a4fa68-9997-4156-ae2d-ed672aee3c94/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a4fa68-9997-4156-ae2d-ed672aee3c94/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 898f8e4708144102795278f9f1417651c36b4d3f17c0ba18e240a325ff6101b3 [2022-12-13 12:20:05,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:20:05,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:20:05,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:20:05,711 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:20:05,712 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:20:05,713 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a4fa68-9997-4156-ae2d-ed672aee3c94/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread/reorder_5.i [2022-12-13 12:20:08,290 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:20:08,498 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:20:08,499 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a4fa68-9997-4156-ae2d-ed672aee3c94/sv-benchmarks/c/pthread/reorder_5.i [2022-12-13 12:20:08,513 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a4fa68-9997-4156-ae2d-ed672aee3c94/bin/uautomizer-uyxdKDjOR8/data/e806d1b82/c07eaca5d1d24ae691f814ef1acb8e6f/FLAG8ac4fa9ab [2022-12-13 12:20:08,524 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a4fa68-9997-4156-ae2d-ed672aee3c94/bin/uautomizer-uyxdKDjOR8/data/e806d1b82/c07eaca5d1d24ae691f814ef1acb8e6f [2022-12-13 12:20:08,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:20:08,527 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:20:08,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:20:08,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:20:08,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:20:08,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:20:08" (1/1) ... [2022-12-13 12:20:08,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11e9494f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:08, skipping insertion in model container [2022-12-13 12:20:08,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:20:08" (1/1) ... [2022-12-13 12:20:08,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:20:08,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:20:08,899 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 12:20:08,904 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 12:20:08,907 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 12:20:08,908 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 12:20:08,910 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 12:20:08,912 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 12:20:08,912 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a4fa68-9997-4156-ae2d-ed672aee3c94/sv-benchmarks/c/pthread/reorder_5.i[59395,59408] [2022-12-13 12:20:08,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:20:08,922 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:20:08,954 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 12:20:08,957 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 12:20:08,958 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 12:20:08,959 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 12:20:08,960 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 12:20:08,962 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 12:20:08,962 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a4fa68-9997-4156-ae2d-ed672aee3c94/sv-benchmarks/c/pthread/reorder_5.i[59395,59408] [2022-12-13 12:20:08,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:20:09,030 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:20:09,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:09 WrapperNode [2022-12-13 12:20:09,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:20:09,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:20:09,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:20:09,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:20:09,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:09" (1/1) ... [2022-12-13 12:20:09,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:09" (1/1) ... [2022-12-13 12:20:09,074 INFO L138 Inliner]: procedures = 369, calls = 39, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 149 [2022-12-13 12:20:09,075 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:20:09,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:20:09,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:20:09,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:20:09,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:09" (1/1) ... [2022-12-13 12:20:09,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:09" (1/1) ... [2022-12-13 12:20:09,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:09" (1/1) ... [2022-12-13 12:20:09,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:09" (1/1) ... [2022-12-13 12:20:09,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:09" (1/1) ... [2022-12-13 12:20:09,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:09" (1/1) ... [2022-12-13 12:20:09,096 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:09" (1/1) ... [2022-12-13 12:20:09,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:09" (1/1) ... [2022-12-13 12:20:09,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:20:09,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:20:09,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:20:09,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:20:09,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:09" (1/1) ... [2022-12-13 12:20:09,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:20:09,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a4fa68-9997-4156-ae2d-ed672aee3c94/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:20:09,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a4fa68-9997-4156-ae2d-ed672aee3c94/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:20:09,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a4fa68-9997-4156-ae2d-ed672aee3c94/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:20:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:20:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:20:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 12:20:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2022-12-13 12:20:09,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2022-12-13 12:20:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 12:20:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:20:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2022-12-13 12:20:09,158 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2022-12-13 12:20:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:20:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:20:09,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:20:09,160 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 12:20:09,268 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:20:09,270 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:20:09,479 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:20:09,488 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:20:09,488 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 12:20:09,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:20:09 BoogieIcfgContainer [2022-12-13 12:20:09,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:20:09,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:20:09,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:20:09,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:20:09,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:20:08" (1/3) ... [2022-12-13 12:20:09,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d52158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:20:09, skipping insertion in model container [2022-12-13 12:20:09,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:09" (2/3) ... [2022-12-13 12:20:09,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d52158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:20:09, skipping insertion in model container [2022-12-13 12:20:09,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:20:09" (3/3) ... [2022-12-13 12:20:09,501 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_5.i [2022-12-13 12:20:09,509 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 12:20:09,518 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:20:09,518 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 12:20:09,518 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 12:20:09,574 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-13 12:20:09,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 173 transitions, 368 flow [2022-12-13 12:20:09,667 INFO L130 PetriNetUnfolder]: 37/349 cut-off events. [2022-12-13 12:20:09,667 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 12:20:09,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 349 events. 37/349 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1150 event pairs, 0 based on Foata normal form. 0/304 useless extension candidates. Maximal degree in co-relation 190. Up to 8 conditions per place. [2022-12-13 12:20:09,674 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 173 transitions, 368 flow [2022-12-13 12:20:09,678 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 161 places, 171 transitions, 358 flow [2022-12-13 12:20:09,681 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 12:20:09,688 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 171 transitions, 358 flow [2022-12-13 12:20:09,690 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 171 transitions, 358 flow [2022-12-13 12:20:09,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 171 transitions, 358 flow [2022-12-13 12:20:09,724 INFO L130 PetriNetUnfolder]: 31/325 cut-off events. [2022-12-13 12:20:09,725 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-13 12:20:09,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 325 events. 31/325 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1026 event pairs, 0 based on Foata normal form. 0/282 useless extension candidates. Maximal degree in co-relation 196. Up to 8 conditions per place. [2022-12-13 12:20:09,728 INFO L119 LiptonReduction]: Number of co-enabled transitions 2014 [2022-12-13 12:20:17,852 INFO L134 LiptonReduction]: Checked pairs total: 2863 [2022-12-13 12:20:17,852 INFO L136 LiptonReduction]: Total number of compositions: 189 [2022-12-13 12:20:17,866 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:20:17,872 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;@17812871, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:20:17,872 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 12:20:17,877 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2022-12-13 12:20:17,877 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:20:17,877 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:20:17,877 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 12:20:17,878 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 12:20:17,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:20:17,882 INFO L85 PathProgramCache]: Analyzing trace with hash 617503368, now seen corresponding path program 1 times [2022-12-13 12:20:17,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:20:17,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665161545] [2022-12-13 12:20:17,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:20:17,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:20:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:20:18,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:20:18,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:20:18,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665161545] [2022-12-13 12:20:18,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665161545] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:20:18,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:20:18,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 12:20:18,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635033998] [2022-12-13 12:20:18,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:20:18,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:20:18,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:20:18,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:20:18,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:20:18,248 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 362 [2022-12-13 12:20:18,251 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:20:18,251 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:20:18,251 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 362 [2022-12-13 12:20:18,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:20:18,332 INFO L130 PetriNetUnfolder]: 118/268 cut-off events. [2022-12-13 12:20:18,332 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-12-13 12:20:18,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 268 events. 118/268 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1071 event pairs, 29 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 380. Up to 201 conditions per place. [2022-12-13 12:20:18,334 INFO L137 encePairwiseOnDemand]: 359/362 looper letters, 31 selfloop transitions, 2 changer transitions 0/35 dead transitions. [2022-12-13 12:20:18,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 35 transitions, 155 flow [2022-12-13 12:20:18,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:20:18,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:20:18,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 490 transitions. [2022-12-13 12:20:18,348 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45119705340699817 [2022-12-13 12:20:18,349 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 490 transitions. [2022-12-13 12:20:18,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 490 transitions. [2022-12-13 12:20:18,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:20:18,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 490 transitions. [2022-12-13 12:20:18,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:20:18,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:20:18,363 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:20:18,364 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 62 flow. Second operand 3 states and 490 transitions. [2022-12-13 12:20:18,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 35 transitions, 155 flow [2022-12-13 12:20:18,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 35 transitions, 155 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 12:20:18,368 INFO L231 Difference]: Finished difference. Result has 29 places, 23 transitions, 70 flow [2022-12-13 12:20:18,370 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=29, PETRI_TRANSITIONS=23} [2022-12-13 12:20:18,373 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2022-12-13 12:20:18,373 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 23 transitions, 70 flow [2022-12-13 12:20:18,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:20:18,374 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:20:18,374 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-12-13 12:20:18,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:20:18,374 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 12:20:18,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:20:18,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1980722994, now seen corresponding path program 1 times [2022-12-13 12:20:18,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:20:18,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112575717] [2022-12-13 12:20:18,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:20:18,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:20:18,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:20:18,427 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:20:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:20:18,474 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:20:18,474 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:20:18,476 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2022-12-13 12:20:18,478 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-12-13 12:20:18,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-13 12:20:18,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-13 12:20:18,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:20:18,479 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 12:20:18,482 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 12:20:18,482 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-13 12:20:18,503 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-12-13 12:20:18,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 180 places, 193 transitions, 434 flow [2022-12-13 12:20:18,630 INFO L130 PetriNetUnfolder]: 149/1088 cut-off events. [2022-12-13 12:20:18,630 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-12-13 12:20:18,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1185 conditions, 1088 events. 149/1088 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5603 event pairs, 1 based on Foata normal form. 0/946 useless extension candidates. Maximal degree in co-relation 640. Up to 32 conditions per place. [2022-12-13 12:20:18,634 INFO L82 GeneralOperation]: Start removeDead. Operand has 180 places, 193 transitions, 434 flow [2022-12-13 12:20:18,640 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 193 transitions, 434 flow [2022-12-13 12:20:18,640 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 12:20:18,640 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 180 places, 193 transitions, 434 flow [2022-12-13 12:20:18,640 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 180 places, 193 transitions, 434 flow [2022-12-13 12:20:18,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 180 places, 193 transitions, 434 flow [2022-12-13 12:20:18,725 INFO L130 PetriNetUnfolder]: 149/1088 cut-off events. [2022-12-13 12:20:18,725 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-12-13 12:20:18,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1185 conditions, 1088 events. 149/1088 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5603 event pairs, 1 based on Foata normal form. 0/946 useless extension candidates. Maximal degree in co-relation 640. Up to 32 conditions per place. [2022-12-13 12:20:18,737 INFO L119 LiptonReduction]: Number of co-enabled transitions 5132 [2022-12-13 12:20:28,195 INFO L134 LiptonReduction]: Checked pairs total: 10026 [2022-12-13 12:20:28,195 INFO L136 LiptonReduction]: Total number of compositions: 192 [2022-12-13 12:20:28,196 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:20:28,197 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;@17812871, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:20:28,197 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-13 12:20:28,200 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2022-12-13 12:20:28,200 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:20:28,200 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:20:28,200 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 12:20:28,200 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 12:20:28,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:20:28,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1002115919, now seen corresponding path program 1 times [2022-12-13 12:20:28,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:20:28,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021090249] [2022-12-13 12:20:28,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:20:28,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:20:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:20:28,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:20:28,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:20:28,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021090249] [2022-12-13 12:20:28,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021090249] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:20:28,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:20:28,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 12:20:28,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628079685] [2022-12-13 12:20:28,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:20:28,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:20:28,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:20:28,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:20:28,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:20:28,264 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 385 [2022-12-13 12:20:28,266 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 39 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:20:28,266 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:20:28,266 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 385 [2022-12-13 12:20:28,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:20:28,812 INFO L130 PetriNetUnfolder]: 4447/6838 cut-off events. [2022-12-13 12:20:28,813 INFO L131 PetriNetUnfolder]: For 1290/1290 co-relation queries the response was YES. [2022-12-13 12:20:28,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14161 conditions, 6838 events. 4447/6838 cut-off events. For 1290/1290 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 37084 event pairs, 1433 based on Foata normal form. 0/5173 useless extension candidates. Maximal degree in co-relation 10038. Up to 6226 conditions per place. [2022-12-13 12:20:28,835 INFO L137 encePairwiseOnDemand]: 380/385 looper letters, 53 selfloop transitions, 3 changer transitions 0/62 dead transitions. [2022-12-13 12:20:28,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 62 transitions, 309 flow [2022-12-13 12:20:28,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:20:28,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:20:28,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 541 transitions. [2022-12-13 12:20:28,839 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4683982683982684 [2022-12-13 12:20:28,839 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 541 transitions. [2022-12-13 12:20:28,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 541 transitions. [2022-12-13 12:20:28,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:20:28,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 541 transitions. [2022-12-13 12:20:28,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:20:28,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:20:28,845 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 385.0) internal successors, (1540), 4 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:20:28,845 INFO L175 Difference]: Start difference. First operand has 40 places, 39 transitions, 126 flow. Second operand 3 states and 541 transitions. [2022-12-13 12:20:28,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 62 transitions, 309 flow [2022-12-13 12:20:28,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 62 transitions, 309 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 12:20:28,854 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 147 flow [2022-12-13 12:20:28,854 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2022-12-13 12:20:28,855 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2022-12-13 12:20:28,855 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 147 flow [2022-12-13 12:20:28,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:20:28,855 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:20:28,856 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:20:28,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:20:28,856 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 12:20:28,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:20:28,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1866571020, now seen corresponding path program 1 times [2022-12-13 12:20:28,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:20:28,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636978804] [2022-12-13 12:20:28,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:20:28,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:20:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:20:28,900 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:20:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:20:28,923 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:20:28,924 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:20:28,924 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-13 12:20:28,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-13 12:20:28,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-13 12:20:28,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-13 12:20:28,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-12-13 12:20:28,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:20:28,925 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 12:20:28,929 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-12-13 12:20:28,930 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:20:28,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:20:28 BasicIcfg [2022-12-13 12:20:28,965 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:20:28,966 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:20:28,966 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:20:28,966 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:20:28,966 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:20:09" (3/4) ... [2022-12-13 12:20:28,968 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 12:20:29,008 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a4fa68-9997-4156-ae2d-ed672aee3c94/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 12:20:29,008 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:20:29,009 INFO L158 Benchmark]: Toolchain (without parser) took 20481.88ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 100.5MB in the beginning and 43.2MB in the end (delta: 57.3MB). Peak memory consumption was 94.3MB. Max. memory is 16.1GB. [2022-12-13 12:20:29,009 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 144.7MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:20:29,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 503.35ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 100.5MB in the beginning and 145.0MB in the end (delta: -44.5MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. [2022-12-13 12:20:29,010 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.50ms. Allocated memory is still 180.4MB. Free memory was 145.0MB in the beginning and 141.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:20:29,010 INFO L158 Benchmark]: Boogie Preprocessor took 23.27ms. Allocated memory is still 180.4MB. Free memory was 141.9MB in the beginning and 139.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:20:29,011 INFO L158 Benchmark]: RCFGBuilder took 392.06ms. Allocated memory is still 180.4MB. Free memory was 139.8MB in the beginning and 122.0MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 12:20:29,011 INFO L158 Benchmark]: TraceAbstraction took 19471.10ms. Allocated memory is still 180.4MB. Free memory was 122.0MB in the beginning and 48.5MB in the end (delta: 73.5MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. [2022-12-13 12:20:29,012 INFO L158 Benchmark]: Witness Printer took 42.64ms. Allocated memory is still 180.4MB. Free memory was 48.5MB in the beginning and 43.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 12:20:29,014 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 144.7MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 503.35ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 100.5MB in the beginning and 145.0MB in the end (delta: -44.5MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.50ms. Allocated memory is still 180.4MB. Free memory was 145.0MB in the beginning and 141.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.27ms. Allocated memory is still 180.4MB. Free memory was 141.9MB in the beginning and 139.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 392.06ms. Allocated memory is still 180.4MB. Free memory was 139.8MB in the beginning and 122.0MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 19471.10ms. Allocated memory is still 180.4MB. Free memory was 122.0MB in the beginning and 48.5MB in the end (delta: 73.5MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. * Witness Printer took 42.64ms. Allocated memory is still 180.4MB. Free memory was 48.5MB in the beginning and 43.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.2s, 161 PlacesBefore, 26 PlacesAfterwards, 171 TransitionsBefore, 23 TransitionsAfterwards, 2014 CoEnabledTransitionPairs, 8 FixpointIterations, 64 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 26 ConcurrentYvCompositions, 13 ChoiceCompositions, 189 TotalNumberOfCompositions, 2863 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2190, independent: 2154, independent conditional: 0, independent unconditional: 2154, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1200, independent: 1189, independent conditional: 0, independent unconditional: 1189, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2190, independent: 965, independent conditional: 0, independent unconditional: 965, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 1200, unknown conditional: 0, unknown unconditional: 1200] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.6s, 180 PlacesBefore, 40 PlacesAfterwards, 193 TransitionsBefore, 39 TransitionsAfterwards, 5132 CoEnabledTransitionPairs, 7 FixpointIterations, 62 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 32 ConcurrentYvCompositions, 14 ChoiceCompositions, 192 TotalNumberOfCompositions, 10026 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7384, independent: 7302, independent conditional: 0, independent unconditional: 7302, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2928, independent: 2908, independent conditional: 0, independent unconditional: 2908, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7384, independent: 4394, independent conditional: 0, independent unconditional: 4394, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 2928, unknown conditional: 0, unknown unconditional: 2928] , Statistics on independence cache: Total cache size (in pairs): 117, Positive cache size: 112, Positive conditional cache size: 0, Positive unconditional cache size: 112, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1287]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1227] 0 static int iSet = 4; [L1228] 0 static int iCheck = 1; [L1229] 0 static int a = 0; [L1230] 0 static int b = 0; [L1237] 0 int i, err; [L1238] COND TRUE 0 argc != 1 [L1239] COND FALSE 0 !(argc != 3) [L1247] EXPR 0 \read(iSet) [L1247] 0 iSet > 100000 || iCheck > 100000 [L1247] EXPR 0 \read(iCheck) [L1247] 0 iSet > 100000 || iCheck > 100000 [L1247] COND FALSE 0 !(iSet > 100000 || iCheck > 100000) [L1250] EXPR 0 \read(iSet) [L1250] 0 pthread_t setPool[iSet]; [L1251] EXPR 0 \read(iCheck) [L1251] 0 pthread_t checkPool[iCheck]; [L1252] 0 i = 0 VAL [\old(argc)=3, \read(iCheck)=1, \read(iSet)=1, a=0, argc=3, argv={49:50}, argv={49:50}, b=0, checkPool={13:0}, i=0, iCheck={11:0}, iSet={10:0}, setPool={14:0}] [L1252] EXPR 0 \read(iSet) [L1252] COND TRUE 0 i < iSet [L1253] EXPR, FCALL, FORK 0 pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=1, \read(iSet)=1, a=0, argc=3, argv={49:50}, argv={49:50}, b=0, checkPool={13:0}, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=-2, setPool={14:0}] [L1253] EXPR 0 err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=1, \read(iSet)=1, a=0, argc=3, argv={49:50}, argv={49:50}, b=0, checkPool={13:0}, err=0, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=0, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=-2, setPool={14:0}] [L1253] COND FALSE 0 !(0 != (err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)))) [L1252] 0 i++ VAL [\old(argc)=3, \read(iCheck)=1, \read(iSet)=1, a=0, argc=3, argv={49:50}, argv={49:50}, b=0, checkPool={13:0}, err=0, fprintf(stderr, "Error [%d] found creating set thread.\n", err)=51, i=1, iCheck={11:0}, iSet={10:0}, param={0:0}, setPool={14:0}] [L1252] EXPR 0 \read(iSet) [L1252] COND FALSE 0 !(i < iSet) [L1258] 0 i = 0 VAL [\old(argc)=3, \read(iCheck)=1, \read(iSet)=1, a=0, argc=3, argv={49:50}, argv={49:50}, b=0, checkPool={13:0}, err=0, fprintf(stderr, "Error [%d] found creating set thread.\n", err)=51, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, setPool={14:0}] [L1258] EXPR 0 \read(iCheck) [L1258] COND TRUE 0 i < iCheck [L1259-L1260] FCALL, FORK 0 pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=1, \read(iSet)=1, a=0, argc=3, argv={49:50}, argv={49:50}, b=0, checkPool={13:0}, err=0, fprintf(stderr, "Error [%d] found creating set thread.\n", err)=51, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0))=-1, setPool={14:0}] [L1280] 1 a = 1 VAL [a=1, b=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, param={0:0}] [L1285] COND TRUE 2 ! ((a == 0 && b == 0) || (a == 1 && b == -1)) [L1287] 2 reach_error() VAL [a=1, b=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, param={0:0}, param={0:0}] - UnprovableResult [Line: 1259]: 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: 1253]: 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 5 procedures, 172 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.9s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 8 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=1, InterpolantAutomatonStates: 3, 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 187 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 80 IncrementalHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 2 mSDtfsCounter, 80 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147occurred in iteration=1, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 12:20:29,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68a4fa68-9997-4156-ae2d-ed672aee3c94/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE