./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32657bc6-daad-427e-8569-c84e83be193a/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32657bc6-daad-427e-8569-c84e83be193a/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_32657bc6-daad-427e-8569-c84e83be193a/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32657bc6-daad-427e-8569-c84e83be193a/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32657bc6-daad-427e-8569-c84e83be193a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32657bc6-daad-427e-8569-c84e83be193a/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 --- 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 11:10:54,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:10:54,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:10:54,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:10:54,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:10:54,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:10:54,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:10:54,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:10:54,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:10:54,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:10:54,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:10:54,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:10:54,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:10:54,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:10:54,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:10:54,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:10:54,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:10:54,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:10:54,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:10:54,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:10:54,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:10:54,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:10:54,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:10:54,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:10:54,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:10:54,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:10:54,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:10:54,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:10:54,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:10:54,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:10:54,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:10:54,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:10:54,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:10:54,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:10:54,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:10:54,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:10:54,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:10:54,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:10:54,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:10:54,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:10:54,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:10:54,867 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32657bc6-daad-427e-8569-c84e83be193a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 11:10:54,887 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:10:54,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:10:54,888 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:10:54,888 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:10:54,889 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:10:54,889 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:10:54,890 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:10:54,890 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:10:54,890 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:10:54,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:10:54,890 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:10:54,891 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:10:54,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:10:54,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:10:54,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:10:54,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:10:54,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:10:54,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:10:54,892 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 11:10:54,892 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:10:54,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:10:54,892 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:10:54,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:10:54,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:10:54,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:10:54,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:10:54,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:10:54,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:10:54,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:10:54,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:10:54,894 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:10:54,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:10:54,894 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:10:54,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:10:54,895 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:10:54,895 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:10:54,895 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:10:54,895 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_32657bc6-daad-427e-8569-c84e83be193a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32657bc6-daad-427e-8569-c84e83be193a/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 [2022-12-13 11:10:55,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:10:55,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:10:55,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:10:55,126 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:10:55,126 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:10:55,127 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32657bc6-daad-427e-8569-c84e83be193a/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-complex/bounded_buffer.i [2022-12-13 11:10:57,711 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:10:57,914 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:10:57,915 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32657bc6-daad-427e-8569-c84e83be193a/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2022-12-13 11:10:57,926 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32657bc6-daad-427e-8569-c84e83be193a/bin/uautomizer-uyxdKDjOR8/data/f27051525/c0aa86d5b44746caad2b7b7e9ebfde96/FLAG6ed1de3ad [2022-12-13 11:10:57,937 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32657bc6-daad-427e-8569-c84e83be193a/bin/uautomizer-uyxdKDjOR8/data/f27051525/c0aa86d5b44746caad2b7b7e9ebfde96 [2022-12-13 11:10:57,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:10:57,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:10:57,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:10:57,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:10:57,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:10:57,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:10:57" (1/1) ... [2022-12-13 11:10:57,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea910d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:57, skipping insertion in model container [2022-12-13 11:10:57,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:10:57" (1/1) ... [2022-12-13 11:10:57,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:10:58,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:10:58,439 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_32657bc6-daad-427e-8569-c84e83be193a/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2022-12-13 11:10:58,448 WARN L623 FunctionHandler]: Unknown extern function fflush [2022-12-13 11:10:58,451 WARN L623 FunctionHandler]: Unknown extern function fflush [2022-12-13 11:10:58,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:10:58,467 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:10:58,507 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_32657bc6-daad-427e-8569-c84e83be193a/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2022-12-13 11:10:58,513 WARN L623 FunctionHandler]: Unknown extern function fflush [2022-12-13 11:10:58,515 WARN L623 FunctionHandler]: Unknown extern function fflush [2022-12-13 11:10:58,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:10:58,606 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:10:58,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:58 WrapperNode [2022-12-13 11:10:58,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:10:58,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:10:58,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:10:58,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:10:58,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:58" (1/1) ... [2022-12-13 11:10:58,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:58" (1/1) ... [2022-12-13 11:10:58,656 INFO L138 Inliner]: procedures = 428, calls = 126, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 476 [2022-12-13 11:10:58,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:10:58,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:10:58,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:10:58,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:10:58,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:58" (1/1) ... [2022-12-13 11:10:58,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:58" (1/1) ... [2022-12-13 11:10:58,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:58" (1/1) ... [2022-12-13 11:10:58,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:58" (1/1) ... [2022-12-13 11:10:58,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:58" (1/1) ... [2022-12-13 11:10:58,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:58" (1/1) ... [2022-12-13 11:10:58,685 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:58" (1/1) ... [2022-12-13 11:10:58,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:58" (1/1) ... [2022-12-13 11:10:58,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:10:58,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:10:58,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:10:58,691 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:10:58,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:58" (1/1) ... [2022-12-13 11:10:58,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:10:58,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32657bc6-daad-427e-8569-c84e83be193a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:10:58,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32657bc6-daad-427e-8569-c84e83be193a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:10:58,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32657bc6-daad-427e-8569-c84e83be193a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:10:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2022-12-13 11:10:58,757 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2022-12-13 11:10:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:10:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 11:10:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 11:10:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 11:10:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2022-12-13 11:10:58,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:10:58,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 11:10:58,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:10:58,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:10:58,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:10:58,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 11:10:58,758 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2022-12-13 11:10:58,758 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2022-12-13 11:10:58,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:10:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:10:58,760 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 11:10:58,908 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:10:58,910 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:10:59,415 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:10:59,422 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:10:59,422 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-12-13 11:10:59,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:10:59 BoogieIcfgContainer [2022-12-13 11:10:59,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:10:59,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:10:59,426 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:10:59,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:10:59,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:10:57" (1/3) ... [2022-12-13 11:10:59,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23edbfac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:10:59, skipping insertion in model container [2022-12-13 11:10:59,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:58" (2/3) ... [2022-12-13 11:10:59,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23edbfac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:10:59, skipping insertion in model container [2022-12-13 11:10:59,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:10:59" (3/3) ... [2022-12-13 11:10:59,430 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2022-12-13 11:10:59,436 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 11:10:59,444 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:10:59,444 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-12-13 11:10:59,444 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 11:10:59,523 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-13 11:10:59,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 470 places, 514 transitions, 1050 flow [2022-12-13 11:10:59,830 INFO L130 PetriNetUnfolder]: 109/1127 cut-off events. [2022-12-13 11:10:59,831 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 11:10:59,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1147 conditions, 1127 events. 109/1127 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6894 event pairs, 0 based on Foata normal form. 0/964 useless extension candidates. Maximal degree in co-relation 590. Up to 16 conditions per place. [2022-12-13 11:10:59,859 INFO L82 GeneralOperation]: Start removeDead. Operand has 470 places, 514 transitions, 1050 flow [2022-12-13 11:10:59,883 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 470 places, 514 transitions, 1050 flow [2022-12-13 11:10:59,886 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 11:10:59,896 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 470 places, 514 transitions, 1050 flow [2022-12-13 11:10:59,899 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 470 places, 514 transitions, 1050 flow [2022-12-13 11:10:59,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 470 places, 514 transitions, 1050 flow [2022-12-13 11:11:00,145 INFO L130 PetriNetUnfolder]: 109/1127 cut-off events. [2022-12-13 11:11:00,145 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 11:11:00,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1147 conditions, 1127 events. 109/1127 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6894 event pairs, 0 based on Foata normal form. 0/964 useless extension candidates. Maximal degree in co-relation 590. Up to 16 conditions per place. [2022-12-13 11:11:00,195 INFO L119 LiptonReduction]: Number of co-enabled transitions 124104 [2022-12-13 11:11:32,331 WARN L233 SmtUtils]: Spent 5.56s on a formula simplification that was a NOOP. DAG size: 186 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:11:42,828 WARN L233 SmtUtils]: Spent 6.16s on a formula simplification that was a NOOP. DAG size: 186 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:12:00,768 WARN L233 SmtUtils]: Spent 13.83s on a formula simplification. DAG size of input: 220 DAG size of output: 218 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:12:06,634 WARN L233 SmtUtils]: Spent 5.86s on a formula simplification that was a NOOP. DAG size: 214 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:12:21,092 WARN L233 SmtUtils]: Spent 14.45s on a formula simplification. DAG size of input: 220 DAG size of output: 218 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:12:27,586 WARN L233 SmtUtils]: Spent 6.49s on a formula simplification that was a NOOP. DAG size: 214 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:13:04,762 WARN L233 SmtUtils]: Spent 37.16s on a formula simplification that was a NOOP. DAG size: 277 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:13:39,723 WARN L233 SmtUtils]: Spent 34.96s on a formula simplification that was a NOOP. DAG size: 263 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:14:20,511 WARN L233 SmtUtils]: Spent 40.79s on a formula simplification that was a NOOP. DAG size: 277 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:14:57,578 WARN L233 SmtUtils]: Spent 37.06s on a formula simplification that was a NOOP. DAG size: 263 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:14:57,600 INFO L134 LiptonReduction]: Checked pairs total: 315777 [2022-12-13 11:14:57,600 INFO L136 LiptonReduction]: Total number of compositions: 515 [2022-12-13 11:14:57,614 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:14:57,618 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;@20633b42, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:14:57,619 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-12-13 11:14:57,624 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2022-12-13 11:14:57,624 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:14:57,624 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:14:57,624 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 11:14:57,625 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-12-13 11:14:57,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:14:57,628 INFO L85 PathProgramCache]: Analyzing trace with hash -411336068, now seen corresponding path program 1 times [2022-12-13 11:14:57,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:14:57,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744010821] [2022-12-13 11:14:57,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:14:57,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:14:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:14:57,938 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 11:14:57,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:14:57,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744010821] [2022-12-13 11:14:57,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744010821] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:14:57,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:14:57,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:14:57,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167063786] [2022-12-13 11:14:57,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:14:57,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:14:57,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:14:57,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:14:57,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:14:58,032 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 481 out of 1029 [2022-12-13 11:14:58,035 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 158 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 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 11:14:58,035 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:14:58,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 481 of 1029 [2022-12-13 11:14:58,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:15:07,032 INFO L130 PetriNetUnfolder]: 77668/115794 cut-off events. [2022-12-13 11:15:07,032 INFO L131 PetriNetUnfolder]: For 328/328 co-relation queries the response was YES. [2022-12-13 11:15:07,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224993 conditions, 115794 events. 77668/115794 cut-off events. For 328/328 co-relation queries the response was YES. Maximal size of possible extension queue 2463. Compared 863901 event pairs, 57149 based on Foata normal form. 2235/84347 useless extension candidates. Maximal degree in co-relation 218315. Up to 109022 conditions per place. [2022-12-13 11:15:07,571 INFO L137 encePairwiseOnDemand]: 1016/1029 looper letters, 126 selfloop transitions, 1 changer transitions 0/145 dead transitions. [2022-12-13 11:15:07,571 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 145 transitions, 566 flow [2022-12-13 11:15:07,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:15:07,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:15:07,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1582 transitions. [2022-12-13 11:15:07,587 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5124716553287982 [2022-12-13 11:15:07,588 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1582 transitions. [2022-12-13 11:15:07,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1582 transitions. [2022-12-13 11:15:07,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:15:07,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1582 transitions. [2022-12-13 11:15:07,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 527.3333333333334) internal successors, (1582), 3 states have internal predecessors, (1582), 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 11:15:07,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1029.0) internal successors, (4116), 4 states have internal predecessors, (4116), 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 11:15:07,608 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1029.0) internal successors, (4116), 4 states have internal predecessors, (4116), 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 11:15:07,609 INFO L175 Difference]: Start difference. First operand has 131 places, 158 transitions, 338 flow. Second operand 3 states and 1582 transitions. [2022-12-13 11:15:07,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 145 transitions, 566 flow [2022-12-13 11:15:07,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 145 transitions, 566 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 11:15:07,616 INFO L231 Difference]: Finished difference. Result has 128 places, 145 transitions, 314 flow [2022-12-13 11:15:07,618 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1029, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=128, PETRI_TRANSITIONS=145} [2022-12-13 11:15:07,621 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -3 predicate places. [2022-12-13 11:15:07,621 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 145 transitions, 314 flow [2022-12-13 11:15:07,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 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 11:15:07,622 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:15:07,622 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 11:15:07,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:15:07,622 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-12-13 11:15:07,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:07,623 INFO L85 PathProgramCache]: Analyzing trace with hash -411336067, now seen corresponding path program 1 times [2022-12-13 11:15:07,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:15:07,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479810218] [2022-12-13 11:15:07,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:07,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:15:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:07,707 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 11:15:07,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:15:07,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479810218] [2022-12-13 11:15:07,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479810218] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:07,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:15:07,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:15:07,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825463047] [2022-12-13 11:15:07,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:07,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:15:07,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:15:07,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:15:07,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:15:07,757 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 481 out of 1029 [2022-12-13 11:15:07,760 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 145 transitions, 314 flow. Second operand has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 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 11:15:07,760 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:15:07,760 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 481 of 1029 [2022-12-13 11:15:07,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:15:09,598 INFO L130 PetriNetUnfolder]: 12596/19386 cut-off events. [2022-12-13 11:15:09,598 INFO L131 PetriNetUnfolder]: For 134/134 co-relation queries the response was YES. [2022-12-13 11:15:09,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38352 conditions, 19386 events. 12596/19386 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 554. Compared 125514 event pairs, 4367 based on Foata normal form. 0/14842 useless extension candidates. Maximal degree in co-relation 38344. Up to 10750 conditions per place. [2022-12-13 11:15:09,659 INFO L137 encePairwiseOnDemand]: 1016/1029 looper letters, 183 selfloop transitions, 8 changer transitions 12/220 dead transitions. [2022-12-13 11:15:09,659 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 220 transitions, 874 flow [2022-12-13 11:15:09,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:15:09,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:15:09,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1653 transitions. [2022-12-13 11:15:09,662 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5354713313896987 [2022-12-13 11:15:09,662 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1653 transitions. [2022-12-13 11:15:09,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1653 transitions. [2022-12-13 11:15:09,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:15:09,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1653 transitions. [2022-12-13 11:15:09,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 551.0) internal successors, (1653), 3 states have internal predecessors, (1653), 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 11:15:09,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1029.0) internal successors, (4116), 4 states have internal predecessors, (4116), 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 11:15:09,669 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1029.0) internal successors, (4116), 4 states have internal predecessors, (4116), 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 11:15:09,670 INFO L175 Difference]: Start difference. First operand has 128 places, 145 transitions, 314 flow. Second operand 3 states and 1653 transitions. [2022-12-13 11:15:09,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 220 transitions, 874 flow [2022-12-13 11:15:09,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 220 transitions, 873 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:15:09,674 INFO L231 Difference]: Finished difference. Result has 127 places, 132 transitions, 315 flow [2022-12-13 11:15:09,674 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1029, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=315, PETRI_PLACES=127, PETRI_TRANSITIONS=132} [2022-12-13 11:15:09,674 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -4 predicate places. [2022-12-13 11:15:09,674 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 132 transitions, 315 flow [2022-12-13 11:15:09,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 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 11:15:09,675 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:15:09,675 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:15:09,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:15:09,675 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting producer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-12-13 11:15:09,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:09,676 INFO L85 PathProgramCache]: Analyzing trace with hash -568450209, now seen corresponding path program 1 times [2022-12-13 11:15:09,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:15:09,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225751486] [2022-12-13 11:15:09,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:09,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:15:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:09,754 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 11:15:09,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:15:09,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225751486] [2022-12-13 11:15:09,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225751486] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:09,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:15:09,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:15:09,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700748643] [2022-12-13 11:15:09,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:09,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:15:09,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:15:09,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:15:09,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:15:09,767 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 491 out of 1029 [2022-12-13 11:15:09,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 132 transitions, 315 flow. Second operand has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 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 11:15:09,768 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:15:09,768 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 491 of 1029 [2022-12-13 11:15:09,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:15:12,831 INFO L130 PetriNetUnfolder]: 23159/35986 cut-off events. [2022-12-13 11:15:12,831 INFO L131 PetriNetUnfolder]: For 5982/5982 co-relation queries the response was YES. [2022-12-13 11:15:12,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74149 conditions, 35986 events. 23159/35986 cut-off events. For 5982/5982 co-relation queries the response was YES. Maximal size of possible extension queue 868. Compared 253812 event pairs, 9761 based on Foata normal form. 0/29670 useless extension candidates. Maximal degree in co-relation 74139. Up to 18324 conditions per place. [2022-12-13 11:15:12,957 INFO L137 encePairwiseOnDemand]: 1024/1029 looper letters, 192 selfloop transitions, 2 changer transitions 0/211 dead transitions. [2022-12-13 11:15:12,957 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 211 transitions, 885 flow [2022-12-13 11:15:12,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:15:12,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:15:12,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1670 transitions. [2022-12-13 11:15:12,960 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5409782960803369 [2022-12-13 11:15:12,960 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1670 transitions. [2022-12-13 11:15:12,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1670 transitions. [2022-12-13 11:15:12,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:15:12,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1670 transitions. [2022-12-13 11:15:12,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 556.6666666666666) internal successors, (1670), 3 states have internal predecessors, (1670), 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 11:15:12,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1029.0) internal successors, (4116), 4 states have internal predecessors, (4116), 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 11:15:12,969 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1029.0) internal successors, (4116), 4 states have internal predecessors, (4116), 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 11:15:12,969 INFO L175 Difference]: Start difference. First operand has 127 places, 132 transitions, 315 flow. Second operand 3 states and 1670 transitions. [2022-12-13 11:15:12,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 211 transitions, 885 flow [2022-12-13 11:15:12,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 211 transitions, 871 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:15:12,978 INFO L231 Difference]: Finished difference. Result has 122 places, 133 transitions, 323 flow [2022-12-13 11:15:12,979 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1029, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=323, PETRI_PLACES=122, PETRI_TRANSITIONS=133} [2022-12-13 11:15:12,979 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -9 predicate places. [2022-12-13 11:15:12,980 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 133 transitions, 323 flow [2022-12-13 11:15:12,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 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 11:15:12,981 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:15:12,981 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-12-13 11:15:12,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 11:15:12,981 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-12-13 11:15:12,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:12,982 INFO L85 PathProgramCache]: Analyzing trace with hash -423833451, now seen corresponding path program 1 times [2022-12-13 11:15:12,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:15:12,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310111822] [2022-12-13 11:15:12,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:12,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:15:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:15:13,022 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:15:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:15:13,072 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:15:13,072 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:15:13,073 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2022-12-13 11:15:13,075 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2022-12-13 11:15:13,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2022-12-13 11:15:13,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2022-12-13 11:15:13,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2022-12-13 11:15:13,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2022-12-13 11:15:13,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2022-12-13 11:15:13,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2022-12-13 11:15:13,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2022-12-13 11:15:13,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2022-12-13 11:15:13,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2022-12-13 11:15:13,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2022-12-13 11:15:13,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2022-12-13 11:15:13,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2022-12-13 11:15:13,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2022-12-13 11:15:13,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2022-12-13 11:15:13,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2022-12-13 11:15:13,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 24 remaining) [2022-12-13 11:15:13,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2022-12-13 11:15:13,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2022-12-13 11:15:13,079 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2022-12-13 11:15:13,079 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2022-12-13 11:15:13,079 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2022-12-13 11:15:13,079 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2022-12-13 11:15:13,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 11:15:13,080 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 11:15:13,082 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 11:15:13,082 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-13 11:15:13,147 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-12-13 11:15:13,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 707 places, 776 transitions, 1600 flow [2022-12-13 11:15:13,978 INFO L130 PetriNetUnfolder]: 384/3722 cut-off events. [2022-12-13 11:15:13,978 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-12-13 11:15:14,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3819 conditions, 3722 events. 384/3722 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 30210 event pairs, 2 based on Foata normal form. 0/3163 useless extension candidates. Maximal degree in co-relation 2073. Up to 64 conditions per place. [2022-12-13 11:15:14,040 INFO L82 GeneralOperation]: Start removeDead. Operand has 707 places, 776 transitions, 1600 flow [2022-12-13 11:15:14,071 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 707 places, 776 transitions, 1600 flow [2022-12-13 11:15:14,071 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 11:15:14,071 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 707 places, 776 transitions, 1600 flow [2022-12-13 11:15:14,071 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 707 places, 776 transitions, 1600 flow [2022-12-13 11:15:14,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 707 places, 776 transitions, 1600 flow [2022-12-13 11:15:14,891 INFO L130 PetriNetUnfolder]: 384/3722 cut-off events. [2022-12-13 11:15:14,891 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-12-13 11:15:14,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3819 conditions, 3722 events. 384/3722 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 30210 event pairs, 2 based on Foata normal form. 0/3163 useless extension candidates. Maximal degree in co-relation 2073. Up to 64 conditions per place. [2022-12-13 11:15:15,305 INFO L119 LiptonReduction]: Number of co-enabled transitions 384376 [2022-12-13 11:15:57,510 WARN L233 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 184 DAG size of output: 182 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:17:12,163 WARN L233 SmtUtils]: Spent 1.07m on a formula simplification. DAG size of input: 285 DAG size of output: 266 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:17:44,919 WARN L233 SmtUtils]: Spent 32.75s on a formula simplification that was a NOOP. DAG size: 263 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:18:47,015 WARN L233 SmtUtils]: Spent 1.03m on a formula simplification. DAG size of input: 289 DAG size of output: 270 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:19:18,827 WARN L233 SmtUtils]: Spent 31.81s on a formula simplification that was a NOOP. DAG size: 266 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:19:18,848 INFO L134 LiptonReduction]: Checked pairs total: 937801 [2022-12-13 11:19:18,848 INFO L136 LiptonReduction]: Total number of compositions: 750 [2022-12-13 11:19:18,850 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:19:18,850 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;@20633b42, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:19:18,850 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-12-13 11:19:18,853 INFO L130 PetriNetUnfolder]: 1/20 cut-off events. [2022-12-13 11:19:18,854 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:19:18,854 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:19:18,854 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:19:18,854 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-12-13 11:19:18,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:19:18,854 INFO L85 PathProgramCache]: Analyzing trace with hash -2001351979, now seen corresponding path program 1 times [2022-12-13 11:19:18,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:19:18,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921756473] [2022-12-13 11:19:18,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:19:18,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:19:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:19:18,905 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 11:19:18,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:19:18,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921756473] [2022-12-13 11:19:18,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921756473] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:19:18,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:19:18,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:19:18,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864555018] [2022-12-13 11:19:18,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:19:18,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:19:18,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:19:18,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:19:18,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:19:18,950 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 731 out of 1526 [2022-12-13 11:19:18,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 249 transitions, 546 flow. Second operand has 3 states, 3 states have (on average 733.0) internal successors, (2199), 3 states have internal predecessors, (2199), 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 11:19:18,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:19:18,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 731 of 1526 [2022-12-13 11:19:18,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand