./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/bin/utaipan-eEHZpOm5b7 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:21:54,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:21:54,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:21:54,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:21:54,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:21:54,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:21:54,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:21:54,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:21:54,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:21:54,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:21:54,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:21:54,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:21:54,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:21:54,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:21:54,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:21:54,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:21:54,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:21:54,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:21:54,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:21:54,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:21:54,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:21:54,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:21:54,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:21:54,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:21:54,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:21:54,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:21:54,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:21:54,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:21:54,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:21:54,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:21:54,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:21:54,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:21:54,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:21:54,633 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:21:54,634 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:21:54,635 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:21:54,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:21:54,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:21:54,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:21:54,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:21:54,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:21:54,641 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:21:54,673 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:21:54,673 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:21:54,674 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:21:54,674 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:21:54,675 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:21:54,675 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:21:54,676 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:21:54,676 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:21:54,677 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:21:54,677 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:21:54,677 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:21:54,678 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:21:54,678 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:21:54,678 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:21:54,679 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:21:54,679 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:21:54,680 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:21:54,680 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:21:54,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:21:54,681 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:21:54,682 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:21:54,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:21:54,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:21:54,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:21:54,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:21:54,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:21:54,683 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:21:54,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:21:54,684 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:21:54,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:21:54,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:21:54,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:21:54,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:21:54,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:21:54,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:21:54,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:21:54,687 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:21:54,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:21:54,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:21:54,688 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:21:54,688 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:21:54,688 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_244b1470-613c-4bcd-971c-87be4e675f8e/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 [2021-11-25 18:21:54,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:21:55,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:21:55,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:21:55,012 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:21:55,013 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:21:55,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2021-11-25 18:21:55,096 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/bin/utaipan-eEHZpOm5b7/data/48f14b4b4/c271eb0705e54e7aa976c8f966051688/FLAGfcd9be650 [2021-11-25 18:21:55,829 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:21:55,830 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2021-11-25 18:21:55,855 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/bin/utaipan-eEHZpOm5b7/data/48f14b4b4/c271eb0705e54e7aa976c8f966051688/FLAGfcd9be650 [2021-11-25 18:21:56,052 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/bin/utaipan-eEHZpOm5b7/data/48f14b4b4/c271eb0705e54e7aa976c8f966051688 [2021-11-25 18:21:56,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:21:56,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:21:56,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:21:56,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:21:56,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:21:56,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:21:56" (1/1) ... [2021-11-25 18:21:56,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@241f6958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:21:56, skipping insertion in model container [2021-11-25 18:21:56,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:21:56" (1/1) ... [2021-11-25 18:21:56,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:21:56,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:21:56,389 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-25 18:21:56,810 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39095,39108] [2021-11-25 18:21:56,827 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39180,39193] [2021-11-25 18:21:56,828 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39232,39245] [2021-11-25 18:21:56,838 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39641,39654] [2021-11-25 18:21:56,840 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39726,39739] [2021-11-25 18:21:56,843 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39778,39791] [2021-11-25 18:21:56,852 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:21:56,865 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:21:56,890 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-25 18:21:56,937 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39095,39108] [2021-11-25 18:21:56,938 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39180,39193] [2021-11-25 18:21:56,939 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39232,39245] [2021-11-25 18:21:56,942 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39641,39654] [2021-11-25 18:21:56,943 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39726,39739] [2021-11-25 18:21:56,944 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39778,39791] [2021-11-25 18:21:56,947 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:21:57,007 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:21:57,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:21:57 WrapperNode [2021-11-25 18:21:57,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:21:57,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:21:57,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:21:57,009 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:21:57,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:21:57" (1/1) ... [2021-11-25 18:21:57,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:21:57" (1/1) ... [2021-11-25 18:21:57,070 INFO L137 Inliner]: procedures = 225, calls = 43, calls flagged for inlining = 10, calls inlined = 7, statements flattened = 113 [2021-11-25 18:21:57,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:21:57,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:21:57,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:21:57,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:21:57,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:21:57" (1/1) ... [2021-11-25 18:21:57,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:21:57" (1/1) ... [2021-11-25 18:21:57,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:21:57" (1/1) ... [2021-11-25 18:21:57,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:21:57" (1/1) ... [2021-11-25 18:21:57,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:21:57" (1/1) ... [2021-11-25 18:21:57,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:21:57" (1/1) ... [2021-11-25 18:21:57,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:21:57" (1/1) ... [2021-11-25 18:21:57,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:21:57,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:21:57,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:21:57,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:21:57,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:21:57" (1/1) ... [2021-11-25 18:21:57,130 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:21:57,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:21:57,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:21:57,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:21:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:21:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:21:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:21:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:21:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:21:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:21:57,214 INFO L130 BoogieDeclarations]: Found specification of procedure reader_nowait_fn [2021-11-25 18:21:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_nowait_fn [2021-11-25 18:21:57,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:21:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:21:57,216 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-25 18:21:57,399 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:21:57,401 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:21:57,761 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:21:57,787 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:21:57,787 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-25 18:21:57,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:21:57 BoogieIcfgContainer [2021-11-25 18:21:57,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:21:57,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:21:57,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:21:57,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:21:57,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:21:56" (1/3) ... [2021-11-25 18:21:57,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@249a5cd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:21:57, skipping insertion in model container [2021-11-25 18:21:57,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:21:57" (2/3) ... [2021-11-25 18:21:57,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@249a5cd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:21:57, skipping insertion in model container [2021-11-25 18:21:57,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:21:57" (3/3) ... [2021-11-25 18:21:57,824 INFO L111 eAbstractionObserver]: Analyzing ICFG ring_1w1r-1.i [2021-11-25 18:21:57,831 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-25 18:21:57,831 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:21:57,831 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-25 18:21:57,831 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-25 18:21:57,872 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,873 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,873 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,873 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,874 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,874 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,874 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,875 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,875 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,875 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,876 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~r~2#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,876 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~r~2#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,876 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,876 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,877 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~r~2#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,877 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~r~2#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,877 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~val~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,878 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~val~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,878 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~last~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,878 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~last~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,879 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,879 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,879 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,880 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,880 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,880 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,880 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~last~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,881 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~last~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,881 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~last~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,881 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~last~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,882 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~r~2#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,882 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~r~2#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,882 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,883 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,883 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~r~2#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,883 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~r~2#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,884 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,884 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,884 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~r~2#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,885 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~r~2#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,885 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,885 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,885 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~r~2#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,886 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~r~2#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,886 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,886 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,886 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,887 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,887 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,887 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,888 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,888 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,888 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,888 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,889 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,889 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,889 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,890 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,890 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,890 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,890 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,891 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,891 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,891 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,892 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,892 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,892 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,892 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,893 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,893 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,893 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,894 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,894 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,894 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,895 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,895 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,895 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,895 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,896 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,896 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,896 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,897 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,897 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,897 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,897 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,898 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,898 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,898 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,899 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,899 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,899 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,900 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,900 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,900 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,901 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,901 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,901 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,901 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,902 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,902 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,902 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,903 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,903 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,903 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,904 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,904 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,904 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,905 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,905 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,905 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,905 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,906 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,906 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,906 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,907 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,907 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,907 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,907 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,908 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,908 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,908 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,909 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,909 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,909 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,909 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,910 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,910 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,910 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,911 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,911 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,911 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,912 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,912 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,912 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,912 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,913 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,913 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,913 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,914 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,914 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,915 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,915 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,915 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,915 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,916 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,916 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,916 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,917 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,917 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,917 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,918 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,918 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,918 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,918 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,919 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,919 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,919 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,920 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,920 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,920 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,920 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,921 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,921 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,921 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,921 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,922 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,922 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,922 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,923 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,923 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~val~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,923 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,924 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~val~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,924 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,924 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,925 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~val~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,925 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~last~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,925 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~val~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,925 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~last~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,926 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~val~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,926 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~last~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,926 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~val~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,926 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~last~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,927 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~val~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,927 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~last~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,927 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~val~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,928 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~last~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,928 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,928 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~pre19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,928 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,929 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~pre19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,930 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,930 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,930 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,931 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,931 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~pre19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,931 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~pre19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,935 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~r~2#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,935 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,936 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,936 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,936 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,937 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,937 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,937 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,937 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#in~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,938 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#in~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,938 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,938 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,939 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~r~2#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,939 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,939 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,940 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,940 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,940 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~pre19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,940 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_~r#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,941 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~val~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,941 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_~r#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,941 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,942 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,942 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~last~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,942 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,942 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,943 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,943 WARN L322 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:21:57,948 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-25 18:21:58,005 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:21:58,014 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:21:58,015 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-25 18:21:58,035 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 18:21:58,052 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 136 places, 141 transitions, 290 flow [2021-11-25 18:21:58,055 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 141 transitions, 290 flow [2021-11-25 18:21:58,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 136 places, 141 transitions, 290 flow [2021-11-25 18:21:58,135 INFO L129 PetriNetUnfolder]: 9/140 cut-off events. [2021-11-25 18:21:58,136 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-25 18:21:58,146 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 140 events. 9/140 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 248 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2021-11-25 18:21:58,155 INFO L116 LiptonReduction]: Number of co-enabled transitions 4756 [2021-11-25 18:22:03,549 INFO L131 LiptonReduction]: Checked pairs total: 6466 [2021-11-25 18:22:03,550 INFO L133 LiptonReduction]: Total number of compositions: 145 [2021-11-25 18:22:03,560 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 27 transitions, 62 flow [2021-11-25 18:22:03,579 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 83 states, 80 states have (on average 2.3875) internal successors, (191), 82 states have internal predecessors, (191), 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) [2021-11-25 18:22:03,582 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 80 states have (on average 2.3875) internal successors, (191), 82 states have internal predecessors, (191), 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) [2021-11-25 18:22:03,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 18:22:03,588 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:22:03,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-25 18:22:03,590 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONERROR_FUNCTION === [reader_nowait_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_nowait_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_nowait_fnErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-25 18:22:03,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:22:03,595 INFO L85 PathProgramCache]: Analyzing trace with hash 17039010, now seen corresponding path program 1 times [2021-11-25 18:22:03,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:22:03,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095066745] [2021-11-25 18:22:03,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:22:03,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:22:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:22:03,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:22:03,913 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:22:03,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095066745] [2021-11-25 18:22:03,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095066745] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:22:03,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:22:03,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:22:03,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646704117] [2021-11-25 18:22:03,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:22:03,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:22:03,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:22:03,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:22:03,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:22:03,966 INFO L87 Difference]: Start difference. First operand has 83 states, 80 states have (on average 2.3875) internal successors, (191), 82 states have internal predecessors, (191), 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-25 18:22:04,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:22:04,087 INFO L93 Difference]: Finished difference Result 128 states and 268 transitions. [2021-11-25 18:22:04,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:22:04,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) Word has length 4 [2021-11-25 18:22:04,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:22:04,110 INFO L225 Difference]: With dead ends: 128 [2021-11-25 18:22:04,111 INFO L226 Difference]: Without dead ends: 128 [2021-11-25 18:22:04,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:22:04,121 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:22:04,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 6 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:22:04,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-25 18:22:04,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 92. [2021-11-25 18:22:04,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 89 states have (on average 2.157303370786517) internal successors, (192), 91 states have internal predecessors, (192), 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) [2021-11-25 18:22:04,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 192 transitions. [2021-11-25 18:22:04,197 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 192 transitions. Word has length 4 [2021-11-25 18:22:04,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:22:04,198 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 192 transitions. [2021-11-25 18:22:04,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-25 18:22:04,198 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 192 transitions. [2021-11-25 18:22:04,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 18:22:04,199 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:22:04,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:22:04,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:22:04,200 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONERROR_FUNCTION === [reader_nowait_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_nowait_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_nowait_fnErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-25 18:22:04,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:22:04,201 INFO L85 PathProgramCache]: Analyzing trace with hash 804914760, now seen corresponding path program 1 times [2021-11-25 18:22:04,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:22:04,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968718992] [2021-11-25 18:22:04,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:22:04,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:22:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 18:22:04,268 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 18:22:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 18:22:04,379 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 18:22:04,379 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 18:22:04,382 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location reader_nowait_fnErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2021-11-25 18:22:04,384 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location reader_nowait_fnErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2021-11-25 18:22:04,384 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location reader_nowait_fnErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2021-11-25 18:22:04,385 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location reader_nowait_fnErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2021-11-25 18:22:04,385 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 7 remaining) [2021-11-25 18:22:04,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location reader_nowait_fnErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2021-11-25 18:22:04,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location reader_nowait_fnErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2021-11-25 18:22:04,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:22:04,389 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-25 18:22:04,396 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-25 18:22:04,396 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 18:22:04,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:22:04 BasicIcfg [2021-11-25 18:22:04,431 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 18:22:04,431 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 18:22:04,432 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 18:22:04,432 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 18:22:04,433 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:21:57" (3/4) ... [2021-11-25 18:22:04,435 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-25 18:22:04,489 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 18:22:04,489 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 18:22:04,491 INFO L158 Benchmark]: Toolchain (without parser) took 8430.48ms. Allocated memory was 119.5MB in the beginning and 188.7MB in the end (delta: 69.2MB). Free memory was 88.1MB in the beginning and 92.8MB in the end (delta: -4.7MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. [2021-11-25 18:22:04,491 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 119.5MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:22:04,492 INFO L158 Benchmark]: CACSL2BoogieTranslator took 933.53ms. Allocated memory is still 119.5MB. Free memory was 87.8MB in the beginning and 77.0MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 18:22:04,493 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.98ms. Allocated memory is still 119.5MB. Free memory was 77.0MB in the beginning and 74.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:22:04,493 INFO L158 Benchmark]: Boogie Preprocessor took 37.68ms. Allocated memory is still 119.5MB. Free memory was 74.5MB in the beginning and 72.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:22:04,494 INFO L158 Benchmark]: RCFGBuilder took 680.15ms. Allocated memory was 119.5MB in the beginning and 157.3MB in the end (delta: 37.7MB). Free memory was 72.8MB in the beginning and 130.8MB in the end (delta: -58.0MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2021-11-25 18:22:04,495 INFO L158 Benchmark]: TraceAbstraction took 6625.42ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 130.0MB in the beginning and 94.9MB in the end (delta: 35.2MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2021-11-25 18:22:04,496 INFO L158 Benchmark]: Witness Printer took 58.23ms. Allocated memory is still 188.7MB. Free memory was 94.9MB in the beginning and 92.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:22:04,500 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 119.5MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 933.53ms. Allocated memory is still 119.5MB. Free memory was 87.8MB in the beginning and 77.0MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.98ms. Allocated memory is still 119.5MB. Free memory was 77.0MB in the beginning and 74.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.68ms. Allocated memory is still 119.5MB. Free memory was 74.5MB in the beginning and 72.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 680.15ms. Allocated memory was 119.5MB in the beginning and 157.3MB in the end (delta: 37.7MB). Free memory was 72.8MB in the beginning and 130.8MB in the end (delta: -58.0MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6625.42ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 130.0MB in the beginning and 94.9MB in the end (delta: 35.2MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. * Witness Printer took 58.23ms. Allocated memory is still 188.7MB. Free memory was 94.9MB in the beginning and 92.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.5s, 136 PlacesBefore, 26 PlacesAfterwards, 141 TransitionsBefore, 27 TransitionsAfterwards, 4756 CoEnabledTransitionPairs, 8 FixpointIterations, 37 TrivialSequentialCompositions, 87 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 17 ConcurrentYvCompositions, 4 ChoiceCompositions, 145 TotalNumberOfCompositions, 6466 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4465, positive: 4276, positive conditional: 0, positive unconditional: 4276, negative: 189, negative conditional: 0, negative unconditional: 189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3344, positive: 3273, positive conditional: 0, positive unconditional: 3273, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3344, positive: 3226, positive conditional: 0, positive unconditional: 3226, negative: 118, negative conditional: 0, negative unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 118, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 399, positive: 74, positive conditional: 0, positive unconditional: 74, negative: 325, negative conditional: 0, negative unconditional: 325, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4465, positive: 1003, positive conditional: 0, positive unconditional: 1003, negative: 118, negative conditional: 0, negative unconditional: 118, unknown: 3344, unknown conditional: 0, unknown unconditional: 3344] , Statistics on independence cache: Total cache size (in pairs): 128, Positive cache size: 107, Positive conditional cache size: 0, Positive unconditional cache size: 107, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 855]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L864] 0 pthread_t reader; [L865] 0 Ring r; [L866] CALL 0 ring_init( &r ) [L823] EXPR 0 r->writer = 0 [L823] 0 r->reader = r->writer = 0 [L866] RET 0 ring_init( &r ) [L867] FCALL, FORK 0 pthread_create( &reader, ((void *)0), &reader_nowait_fn, &r ) VAL [pthread_create( &reader, ((void *)0), &reader_nowait_fn, &r )=0, r={8:0}, reader={9:0}] [L851] 1 Ring *r = arg; [L852] 1 long val = 0, last = 0, i = 0; VAL [arg={8:0}, arg={8:0}, i=0, last=0, r={8:0}, val=0] [L853] COND TRUE 1 i < 8 [L854] CALL, EXPR 1 ring_dequeue( r ) [L815] EXPR 1 r->reader VAL [r={8:0}, r={8:0}, r->reader=0] [L815] EXPR 1 r->q[ r->reader ] [L815] 1 long x = r->q[ r->reader ]; VAL [r={8:0}, r={8:0}, r->q[ r->reader ]=10, r->reader=0, x=10] [L816] EXPR 1 r->reader VAL [r={8:0}, r={8:0}, r->reader=0, x=10] [L816] 1 r->reader = (r->reader + 1) % 4 [L817] 1 return x; [L854] RET, EXPR 1 ring_dequeue( r ) [L854] 1 val = ring_dequeue( r ) [L855] 1 !(val == last + 1) ? reach_error() : (void)0 [L855] 1 reach_error() VAL [arg={8:0}, arg={8:0}, i=0, last=0, r={8:0}, val=10] - UnprovableResult [Line: 859]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 860]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 867]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 188 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.6s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 4 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred 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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 36 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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! [2021-11-25 18:22:04,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244b1470-613c-4bcd-971c-87be4e675f8e/bin/utaipan-eEHZpOm5b7/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