./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fd4c4d-1e02-46af-88f3-8d14fd6f36cb/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fd4c4d-1e02-46af-88f3-8d14fd6f36cb/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fd4c4d-1e02-46af-88f3-8d14fd6f36cb/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fd4c4d-1e02-46af-88f3-8d14fd6f36cb/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fd4c4d-1e02-46af-88f3-8d14fd6f36cb/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fd4c4d-1e02-46af-88f3-8d14fd6f36cb/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c80601716e9c0111d78d12f0a88108c91b0aa7215f8e775685e33490f22c8502 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:14:31,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:14:31,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:14:31,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:14:31,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:14:31,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:14:31,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:14:31,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:14:31,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:14:31,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:14:31,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:14:31,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:14:31,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:14:31,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:14:31,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:14:31,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:14:31,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:14:31,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:14:31,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:14:31,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:14:31,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:14:31,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:14:31,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:14:31,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:14:31,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:14:31,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:14:31,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:14:31,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:14:31,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:14:31,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:14:31,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:14:31,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:14:31,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:14:31,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:14:31,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:14:31,752 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:14:31,753 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:14:31,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:14:31,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:14:31,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:14:31,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:14:31,758 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fd4c4d-1e02-46af-88f3-8d14fd6f36cb/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 09:14:31,810 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:14:31,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:14:31,825 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:14:31,826 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:14:31,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:14:31,831 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:14:31,832 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:14:31,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:14:31,833 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:14:31,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:14:31,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:14:31,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:14:31,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:14:31,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:14:31,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:14:31,837 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:14:31,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:14:31,837 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:14:31,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:14:31,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:14:31,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:14:31,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:14:31,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:14:31,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:14:31,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:14:31,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:14:31,840 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:14:31,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:14:31,841 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:14:31,843 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:14:31,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:14:31,844 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:14:31,844 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fd4c4d-1e02-46af-88f3-8d14fd6f36cb/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fd4c4d-1e02-46af-88f3-8d14fd6f36cb/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c80601716e9c0111d78d12f0a88108c91b0aa7215f8e775685e33490f22c8502 [2021-10-28 09:14:32,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:14:32,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:14:32,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:14:32,227 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:14:32,228 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:14:32,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fd4c4d-1e02-46af-88f3-8d14fd6f36cb/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c [2021-10-28 09:14:32,337 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fd4c4d-1e02-46af-88f3-8d14fd6f36cb/bin/uautomizer-UnR33cPsHg/data/da987b6f5/96757203538747cf8f197dc8354be59e/FLAGa51fdf3e5 [2021-10-28 09:14:32,888 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:14:32,889 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fd4c4d-1e02-46af-88f3-8d14fd6f36cb/sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c [2021-10-28 09:14:32,898 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fd4c4d-1e02-46af-88f3-8d14fd6f36cb/bin/uautomizer-UnR33cPsHg/data/da987b6f5/96757203538747cf8f197dc8354be59e/FLAGa51fdf3e5 [2021-10-28 09:14:33,252 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fd4c4d-1e02-46af-88f3-8d14fd6f36cb/bin/uautomizer-UnR33cPsHg/data/da987b6f5/96757203538747cf8f197dc8354be59e [2021-10-28 09:14:33,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:14:33,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:14:33,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:14:33,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:14:33,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:14:33,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:14:33" (1/1) ... [2021-10-28 09:14:33,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d639386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:33, skipping insertion in model container [2021-10-28 09:14:33,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:14:33" (1/1) ... [2021-10-28 09:14:33,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:14:33,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:14:33,629 WARN L228 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_80fd4c4d-1e02-46af-88f3-8d14fd6f36cb/sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c[2870,2883] [2021-10-28 09:14:33,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:14:33,649 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:14:33,680 WARN L228 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_80fd4c4d-1e02-46af-88f3-8d14fd6f36cb/sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c[2870,2883] [2021-10-28 09:14:33,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:14:33,703 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:14:33,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:33 WrapperNode [2021-10-28 09:14:33,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:14:33,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:14:33,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:14:33,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:14:33,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:33" (1/1) ... [2021-10-28 09:14:33,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:33" (1/1) ... [2021-10-28 09:14:33,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:14:33,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:14:33,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:14:33,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:14:33,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:33" (1/1) ... [2021-10-28 09:14:33,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:33" (1/1) ... [2021-10-28 09:14:33,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:33" (1/1) ... [2021-10-28 09:14:33,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:33" (1/1) ... [2021-10-28 09:14:33,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:33" (1/1) ... [2021-10-28 09:14:33,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:33" (1/1) ... [2021-10-28 09:14:33,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:33" (1/1) ... [2021-10-28 09:14:33,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:14:33,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:14:33,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:14:33,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:14:33,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:33" (1/1) ... [2021-10-28 09:14:33,851 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:14:33,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fd4c4d-1e02-46af-88f3-8d14fd6f36cb/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:14:33,875 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fd4c4d-1e02-46af-88f3-8d14fd6f36cb/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:14:33,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fd4c4d-1e02-46af-88f3-8d14fd6f36cb/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:14:33,926 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-28 09:14:33,927 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-28 09:14:33,927 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-28 09:14:33,927 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-28 09:14:33,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:14:33,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:14:33,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:14:33,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-28 09:14:33,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-28 09:14:33,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:14:33,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:14:33,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:14:33,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:14:33,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:14:33,930 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 09:14:34,740 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:14:34,740 INFO L299 CfgBuilder]: Removed 27 assume(true) statements. [2021-10-28 09:14:34,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:14:34 BoogieIcfgContainer [2021-10-28 09:14:34,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:14:34,745 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:14:34,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:14:34,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:14:34,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:14:33" (1/3) ... [2021-10-28 09:14:34,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e1d30e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:14:34, skipping insertion in model container [2021-10-28 09:14:34,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:33" (2/3) ... [2021-10-28 09:14:34,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e1d30e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:14:34, skipping insertion in model container [2021-10-28 09:14:34,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:14:34" (3/3) ... [2021-10-28 09:14:34,754 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-queue-add-2-nl.wvr.c [2021-10-28 09:14:34,760 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 09:14:34,761 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:14:34,761 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 09:14:34,761 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 09:14:34,815 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,815 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,821 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,822 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,822 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,822 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,822 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,823 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,823 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,823 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,823 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,824 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,824 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,824 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,824 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,825 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,825 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,825 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,825 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,826 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,826 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,827 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,827 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,827 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,828 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,829 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,829 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,829 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,830 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,831 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,831 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,831 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,832 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,832 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,832 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,833 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,833 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,833 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,834 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,834 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,835 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,835 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,836 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,836 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,836 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,836 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,836 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,837 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,837 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,837 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,837 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,837 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,838 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,839 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,839 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,839 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,839 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,840 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,847 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,848 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,848 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,848 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,849 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,849 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,850 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,853 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,853 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,854 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,854 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,854 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,854 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,854 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,855 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,855 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,856 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:34,863 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-28 09:14:34,924 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:14:34,931 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 09:14:34,932 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 09:14:34,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 131 transitions, 278 flow [2021-10-28 09:14:35,016 INFO L129 PetriNetUnfolder]: 11/129 cut-off events. [2021-10-28 09:14:35,017 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-28 09:14:35,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 129 events. 11/129 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 80 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 95. Up to 3 conditions per place. [2021-10-28 09:14:35,022 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 131 transitions, 278 flow [2021-10-28 09:14:35,029 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 121 transitions, 254 flow [2021-10-28 09:14:35,086 INFO L129 PetriNetUnfolder]: 11/120 cut-off events. [2021-10-28 09:14:35,087 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-28 09:14:35,090 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:14:35,091 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:14:35,092 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-28 09:14:35,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:35,107 INFO L85 PathProgramCache]: Analyzing trace with hash 61158525, now seen corresponding path program 1 times [2021-10-28 09:14:35,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:35,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320448757] [2021-10-28 09:14:35,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:35,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:35,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:35,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:35,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320448757] [2021-10-28 09:14:35,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320448757] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:14:35,537 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:14:35,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:14:35,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428090989] [2021-10-28 09:14:35,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:14:35,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:35,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:14:35,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:14:35,575 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 131 [2021-10-28 09:14:35,582 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 121 transitions, 254 flow. Second operand has 2 states, 2 states have (on average 123.0) internal successors, (246), 2 states have internal predecessors, (246), 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) [2021-10-28 09:14:35,582 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:14:35,583 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 131 [2021-10-28 09:14:35,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:14:35,645 INFO L129 PetriNetUnfolder]: 3/113 cut-off events. [2021-10-28 09:14:35,645 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-28 09:14:35,647 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 113 events. 3/113 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 7/113 useless extension candidates. Maximal degree in co-relation 119. Up to 2 conditions per place. [2021-10-28 09:14:35,648 INFO L132 encePairwiseOnDemand]: 123/131 looper letters, 0 selfloop transitions, 0 changer transitions 4/113 dead transitions. [2021-10-28 09:14:35,649 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 113 transitions, 238 flow [2021-10-28 09:14:35,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:14:35,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-28 09:14:35,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 252 transitions. [2021-10-28 09:14:35,665 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9618320610687023 [2021-10-28 09:14:35,669 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 252 transitions. [2021-10-28 09:14:35,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 252 transitions. [2021-10-28 09:14:35,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:14:35,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 252 transitions. [2021-10-28 09:14:35,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 126.0) internal successors, (252), 2 states have internal predecessors, (252), 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) [2021-10-28 09:14:35,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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) [2021-10-28 09:14:35,698 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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) [2021-10-28 09:14:35,700 INFO L186 Difference]: Start difference. First operand has 117 places, 121 transitions, 254 flow. Second operand 2 states and 252 transitions. [2021-10-28 09:14:35,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 113 transitions, 238 flow [2021-10-28 09:14:35,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 113 transitions, 230 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-28 09:14:35,717 INFO L242 Difference]: Finished difference. Result has 114 places, 109 transitions, 222 flow [2021-10-28 09:14:35,720 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=222, PETRI_PLACES=114, PETRI_TRANSITIONS=109} [2021-10-28 09:14:35,721 INFO L334 CegarLoopForPetriNet]: 117 programPoint places, -3 predicate places. [2021-10-28 09:14:35,721 INFO L470 AbstractCegarLoop]: Abstraction has has 114 places, 109 transitions, 222 flow [2021-10-28 09:14:35,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 123.0) internal successors, (246), 2 states have internal predecessors, (246), 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) [2021-10-28 09:14:35,722 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:14:35,722 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:14:35,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:14:35,723 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-28 09:14:35,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:35,725 INFO L85 PathProgramCache]: Analyzing trace with hash -684468594, now seen corresponding path program 1 times [2021-10-28 09:14:35,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:35,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725728456] [2021-10-28 09:14:35,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:35,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:35,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:35,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:35,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725728456] [2021-10-28 09:14:35,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725728456] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:14:35,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:14:35,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:14:35,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137074722] [2021-10-28 09:14:35,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:14:35,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:35,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:14:35,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:14:35,993 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 131 [2021-10-28 09:14:35,997 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 109 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 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) [2021-10-28 09:14:35,997 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:14:35,998 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 131 [2021-10-28 09:14:35,998 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:14:36,191 INFO L129 PetriNetUnfolder]: 7/161 cut-off events. [2021-10-28 09:14:36,193 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 09:14:36,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 161 events. 7/161 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 197 event pairs, 2 based on Foata normal form. 3/156 useless extension candidates. Maximal degree in co-relation 193. Up to 19 conditions per place. [2021-10-28 09:14:36,198 INFO L132 encePairwiseOnDemand]: 121/131 looper letters, 15 selfloop transitions, 6 changer transitions 1/114 dead transitions. [2021-10-28 09:14:36,199 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 114 transitions, 276 flow [2021-10-28 09:14:36,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:14:36,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 09:14:36,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 760 transitions. [2021-10-28 09:14:36,211 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8287895310796074 [2021-10-28 09:14:36,212 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 760 transitions. [2021-10-28 09:14:36,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 760 transitions. [2021-10-28 09:14:36,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:14:36,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 760 transitions. [2021-10-28 09:14:36,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 108.57142857142857) internal successors, (760), 7 states have internal predecessors, (760), 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) [2021-10-28 09:14:36,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 131.0) internal successors, (1048), 8 states have internal predecessors, (1048), 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) [2021-10-28 09:14:36,223 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 131.0) internal successors, (1048), 8 states have internal predecessors, (1048), 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) [2021-10-28 09:14:36,223 INFO L186 Difference]: Start difference. First operand has 114 places, 109 transitions, 222 flow. Second operand 7 states and 760 transitions. [2021-10-28 09:14:36,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 114 transitions, 276 flow [2021-10-28 09:14:36,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 114 transitions, 276 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-28 09:14:36,230 INFO L242 Difference]: Finished difference. Result has 118 places, 110 transitions, 248 flow [2021-10-28 09:14:36,230 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=248, PETRI_PLACES=118, PETRI_TRANSITIONS=110} [2021-10-28 09:14:36,231 INFO L334 CegarLoopForPetriNet]: 117 programPoint places, 1 predicate places. [2021-10-28 09:14:36,231 INFO L470 AbstractCegarLoop]: Abstraction has has 118 places, 110 transitions, 248 flow [2021-10-28 09:14:36,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 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) [2021-10-28 09:14:36,232 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:14:36,233 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:14:36,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:14:36,233 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-28 09:14:36,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:36,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1359505645, now seen corresponding path program 1 times [2021-10-28 09:14:36,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:36,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366197789] [2021-10-28 09:14:36,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:36,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:36,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:36,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:36,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366197789] [2021-10-28 09:14:36,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366197789] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:14:36,501 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:14:36,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:14:36,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167043370] [2021-10-28 09:14:36,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:14:36,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:36,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:14:36,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:14:36,508 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 131 [2021-10-28 09:14:36,510 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 110 transitions, 248 flow. Second operand has 6 states, 6 states have (on average 97.16666666666667) internal successors, (583), 6 states have internal predecessors, (583), 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) [2021-10-28 09:14:36,510 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:14:36,511 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 131 [2021-10-28 09:14:36,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:14:36,576 INFO L129 PetriNetUnfolder]: 0/48 cut-off events. [2021-10-28 09:14:36,576 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 09:14:36,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 48 events. 0/48 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-10-28 09:14:36,576 INFO L132 encePairwiseOnDemand]: 126/131 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2021-10-28 09:14:36,577 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 48 transitions, 131 flow [2021-10-28 09:14:36,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:14:36,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-28 09:14:36,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 571 transitions. [2021-10-28 09:14:36,581 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7264631043256997 [2021-10-28 09:14:36,582 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 571 transitions. [2021-10-28 09:14:36,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 571 transitions. [2021-10-28 09:14:36,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:14:36,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 571 transitions. [2021-10-28 09:14:36,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.16666666666667) internal successors, (571), 6 states have internal predecessors, (571), 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) [2021-10-28 09:14:36,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 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) [2021-10-28 09:14:36,617 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 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) [2021-10-28 09:14:36,617 INFO L186 Difference]: Start difference. First operand has 118 places, 110 transitions, 248 flow. Second operand 6 states and 571 transitions. [2021-10-28 09:14:36,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 48 transitions, 131 flow [2021-10-28 09:14:36,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 48 transitions, 121 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-10-28 09:14:36,621 INFO L242 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2021-10-28 09:14:36,622 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2021-10-28 09:14:36,622 INFO L334 CegarLoopForPetriNet]: 117 programPoint places, -60 predicate places. [2021-10-28 09:14:36,622 INFO L470 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2021-10-28 09:14:36,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.16666666666667) internal successors, (583), 6 states have internal predecessors, (583), 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) [2021-10-28 09:14:36,625 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:14:36,626 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 09:14:36,626 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-28 09:14:36,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 09:14:36,630 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 09:14:36,633 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 09:14:36,633 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:14:36,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:14:36 BasicIcfg [2021-10-28 09:14:36,636 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:14:36,637 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:14:36,637 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:14:36,637 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:14:36,638 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:14:34" (3/4) ... [2021-10-28 09:14:36,641 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 09:14:36,648 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-28 09:14:36,649 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-28 09:14:36,655 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-10-28 09:14:36,655 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 09:14:36,656 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:14:36,656 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:14:36,716 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fd4c4d-1e02-46af-88f3-8d14fd6f36cb/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:14:36,716 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:14:36,718 INFO L168 Benchmark]: Toolchain (without parser) took 3454.41 ms. Allocated memory is still 134.2 MB. Free memory was 100.9 MB in the beginning and 102.7 MB in the end (delta: -1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:14:36,719 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory is still 43.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:14:36,719 INFO L168 Benchmark]: CACSL2BoogieTranslator took 439.76 ms. Allocated memory is still 134.2 MB. Free memory was 100.9 MB in the beginning and 108.7 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:14:36,720 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.28 ms. Allocated memory is still 134.2 MB. Free memory was 108.7 MB in the beginning and 106.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:14:36,721 INFO L168 Benchmark]: Boogie Preprocessor took 68.19 ms. Allocated memory is still 134.2 MB. Free memory was 106.7 MB in the beginning and 105.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:14:36,722 INFO L168 Benchmark]: RCFGBuilder took 913.75 ms. Allocated memory is still 134.2 MB. Free memory was 105.0 MB in the beginning and 83.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:14:36,722 INFO L168 Benchmark]: TraceAbstraction took 1891.02 ms. Allocated memory is still 134.2 MB. Free memory was 82.8 MB in the beginning and 106.0 MB in the end (delta: -23.2 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:14:36,723 INFO L168 Benchmark]: Witness Printer took 79.25 ms. Allocated memory is still 134.2 MB. Free memory was 106.0 MB in the beginning and 102.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:14:36,727 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory is still 43.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 439.76 ms. Allocated memory is still 134.2 MB. Free memory was 100.9 MB in the beginning and 108.7 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.28 ms. Allocated memory is still 134.2 MB. Free memory was 108.7 MB in the beginning and 106.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.19 ms. Allocated memory is still 134.2 MB. Free memory was 106.7 MB in the beginning and 105.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 913.75 ms. Allocated memory is still 134.2 MB. Free memory was 105.0 MB in the beginning and 83.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1891.02 ms. Allocated memory is still 134.2 MB. Free memory was 82.8 MB in the beginning and 106.0 MB in the end (delta: -23.2 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. * Witness Printer took 79.25 ms. Allocated memory is still 134.2 MB. Free memory was 106.0 MB in the beginning and 102.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - PositiveResult [Line: 105]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 145 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 43 SDslu, 5 SDs, 0 SdLazy, 60 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=254occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 288 NumberOfCodeBlocks, 288 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 285 ConstructedInterpolants, 0 QuantifiedInterpolants, 401 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1/1 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-28 09:14:36,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fd4c4d-1e02-46af-88f3-8d14fd6f36cb/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...