./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/peterson.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/peterson.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/bin/uautomizer-QkZJyEgLgS --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 ee3d1a41e169e13d6fb9bc974b1d8f7c8de5421cb2dfbc7e3d9a400662188398 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 04:00:32,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 04:00:32,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 04:00:32,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 04:00:32,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 04:00:32,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 04:00:32,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 04:00:32,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 04:00:32,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 04:00:32,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 04:00:32,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 04:00:32,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 04:00:32,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 04:00:32,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 04:00:32,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 04:00:32,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 04:00:32,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 04:00:32,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 04:00:32,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 04:00:32,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 04:00:32,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 04:00:32,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 04:00:32,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 04:00:32,830 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 04:00:32,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 04:00:32,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 04:00:32,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 04:00:32,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 04:00:32,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 04:00:32,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 04:00:32,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 04:00:32,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 04:00:32,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 04:00:32,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 04:00:32,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 04:00:32,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 04:00:32,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 04:00:32,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 04:00:32,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 04:00:32,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 04:00:32,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 04:00:32,856 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-23 04:00:32,909 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 04:00:32,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 04:00:32,910 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 04:00:32,910 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 04:00:32,911 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 04:00:32,912 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 04:00:32,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 04:00:32,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 04:00:32,913 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 04:00:32,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 04:00:32,915 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 04:00:32,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 04:00:32,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 04:00:32,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 04:00:32,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 04:00:32,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 04:00:32,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 04:00:32,917 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 04:00:32,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 04:00:32,917 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 04:00:32,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 04:00:32,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 04:00:32,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 04:00:32,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 04:00:32,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 04:00:32,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 04:00:32,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 04:00:32,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 04:00:32,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 04:00:32,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 04:00:32,921 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 04:00:32,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 04:00:32,921 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 04:00:32,922 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 04:00:32,922 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee3d1a41e169e13d6fb9bc974b1d8f7c8de5421cb2dfbc7e3d9a400662188398 [2022-11-23 04:00:33,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 04:00:33,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 04:00:33,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 04:00:33,275 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 04:00:33,275 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 04:00:33,277 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/pthread-atomic/peterson.i [2022-11-23 04:00:36,534 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 04:00:36,837 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 04:00:36,842 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/sv-benchmarks/c/pthread-atomic/peterson.i [2022-11-23 04:00:36,858 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/bin/uautomizer-QkZJyEgLgS/data/0abcae53e/e6ee16f0af41458f905d21f638482717/FLAG938b269a6 [2022-11-23 04:00:36,874 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/bin/uautomizer-QkZJyEgLgS/data/0abcae53e/e6ee16f0af41458f905d21f638482717 [2022-11-23 04:00:36,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 04:00:36,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 04:00:36,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 04:00:36,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 04:00:36,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 04:00:36,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:00:36" (1/1) ... [2022-11-23 04:00:36,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@755d7c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:36, skipping insertion in model container [2022-11-23 04:00:36,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:00:36" (1/1) ... [2022-11-23 04:00:36,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 04:00:36,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 04:00:37,107 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 04:00:37,315 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/sv-benchmarks/c/pthread-atomic/peterson.i[30997,31010] [2022-11-23 04:00:37,331 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/sv-benchmarks/c/pthread-atomic/peterson.i[31682,31695] [2022-11-23 04:00:37,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 04:00:37,353 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 04:00:37,383 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 04:00:37,419 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/sv-benchmarks/c/pthread-atomic/peterson.i[30997,31010] [2022-11-23 04:00:37,430 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/sv-benchmarks/c/pthread-atomic/peterson.i[31682,31695] [2022-11-23 04:00:37,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 04:00:37,479 INFO L208 MainTranslator]: Completed translation [2022-11-23 04:00:37,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37 WrapperNode [2022-11-23 04:00:37,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 04:00:37,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 04:00:37,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 04:00:37,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 04:00:37,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2022-11-23 04:00:37,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2022-11-23 04:00:37,534 INFO L138 Inliner]: procedures = 171, calls = 47, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2022-11-23 04:00:37,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 04:00:37,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 04:00:37,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 04:00:37,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 04:00:37,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2022-11-23 04:00:37,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2022-11-23 04:00:37,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2022-11-23 04:00:37,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2022-11-23 04:00:37,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2022-11-23 04:00:37,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2022-11-23 04:00:37,564 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2022-11-23 04:00:37,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2022-11-23 04:00:37,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 04:00:37,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 04:00:37,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 04:00:37,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 04:00:37,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2022-11-23 04:00:37,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 04:00:37,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 04:00:37,604 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 04:00:37,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 04:00:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 04:00:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-23 04:00:37,661 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-23 04:00:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-23 04:00:37,661 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-23 04:00:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 04:00:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 04:00:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 04:00:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 04:00:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 04:00:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 04:00:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 04:00:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 04:00:37,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 04:00:37,665 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 04:00:37,812 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 04:00:37,814 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 04:00:38,035 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 04:00:38,041 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 04:00:38,041 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 04:00:38,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:00:38 BoogieIcfgContainer [2022-11-23 04:00:38,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 04:00:38,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 04:00:38,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 04:00:38,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 04:00:38,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:00:36" (1/3) ... [2022-11-23 04:00:38,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb182ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:00:38, skipping insertion in model container [2022-11-23 04:00:38,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (2/3) ... [2022-11-23 04:00:38,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb182ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:00:38, skipping insertion in model container [2022-11-23 04:00:38,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:00:38" (3/3) ... [2022-11-23 04:00:38,056 INFO L112 eAbstractionObserver]: Analyzing ICFG peterson.i [2022-11-23 04:00:38,067 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 04:00:38,081 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 04:00:38,081 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 04:00:38,081 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 04:00:38,171 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-23 04:00:38,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 82 transitions, 180 flow [2022-11-23 04:00:38,342 INFO L130 PetriNetUnfolder]: 6/80 cut-off events. [2022-11-23 04:00:38,342 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 04:00:38,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 80 events. 6/80 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 76 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2022-11-23 04:00:38,350 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 82 transitions, 180 flow [2022-11-23 04:00:38,359 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 70 transitions, 149 flow [2022-11-23 04:00:38,365 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 04:00:38,397 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 70 transitions, 149 flow [2022-11-23 04:00:38,412 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 70 transitions, 149 flow [2022-11-23 04:00:38,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 70 transitions, 149 flow [2022-11-23 04:00:38,438 INFO L130 PetriNetUnfolder]: 6/70 cut-off events. [2022-11-23 04:00:38,438 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 04:00:38,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 70 events. 6/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 76 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2022-11-23 04:00:38,441 INFO L119 LiptonReduction]: Number of co-enabled transitions 1188 [2022-11-23 04:00:40,953 INFO L134 LiptonReduction]: Checked pairs total: 3428 [2022-11-23 04:00:40,953 INFO L136 LiptonReduction]: Total number of compositions: 51 [2022-11-23 04:00:40,980 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 04:00:41,003 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@648ca9bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 04:00:41,003 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-23 04:00:41,008 INFO L130 PetriNetUnfolder]: 1/16 cut-off events. [2022-11-23 04:00:41,014 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 04:00:41,015 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 04:00:41,015 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 04:00:41,016 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-23 04:00:41,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:00:41,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1822581762, now seen corresponding path program 1 times [2022-11-23 04:00:41,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:00:41,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765230550] [2022-11-23 04:00:41,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:00:41,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:00:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:00:41,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 04:00:41,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:00:41,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765230550] [2022-11-23 04:00:41,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765230550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:00:41,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:00:41,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 04:00:41,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987265383] [2022-11-23 04:00:41,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:00:41,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 04:00:41,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:00:41,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 04:00:41,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 04:00:41,567 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 133 [2022-11-23 04:00:41,569 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 28 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:41,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 04:00:41,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 133 [2022-11-23 04:00:41,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 04:00:41,750 INFO L130 PetriNetUnfolder]: 149/318 cut-off events. [2022-11-23 04:00:41,750 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-23 04:00:41,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 641 conditions, 318 events. 149/318 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1632 event pairs, 67 based on Foata normal form. 16/262 useless extension candidates. Maximal degree in co-relation 544. Up to 166 conditions per place. [2022-11-23 04:00:41,760 INFO L137 encePairwiseOnDemand]: 126/133 looper letters, 23 selfloop transitions, 5 changer transitions 1/37 dead transitions. [2022-11-23 04:00:41,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 37 transitions, 144 flow [2022-11-23 04:00:41,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 04:00:41,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 04:00:41,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 238 transitions. [2022-11-23 04:00:41,782 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5964912280701754 [2022-11-23 04:00:41,783 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 238 transitions. [2022-11-23 04:00:41,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 238 transitions. [2022-11-23 04:00:41,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 04:00:41,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 238 transitions. [2022-11-23 04:00:41,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:41,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:41,804 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:41,806 INFO L175 Difference]: Start difference. First operand has 32 places, 28 transitions, 65 flow. Second operand 3 states and 238 transitions. [2022-11-23 04:00:41,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 37 transitions, 144 flow [2022-11-23 04:00:41,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 37 transitions, 137 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-23 04:00:41,815 INFO L231 Difference]: Finished difference. Result has 33 places, 29 transitions, 88 flow [2022-11-23 04:00:41,817 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=33, PETRI_TRANSITIONS=29} [2022-11-23 04:00:41,826 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2022-11-23 04:00:41,828 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 29 transitions, 88 flow [2022-11-23 04:00:41,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:41,828 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 04:00:41,828 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 04:00:41,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 04:00:41,829 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-23 04:00:41,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:00:41,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1072972349, now seen corresponding path program 1 times [2022-11-23 04:00:41,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:00:41,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668898599] [2022-11-23 04:00:41,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:00:41,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:00:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:00:41,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 04:00:41,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:00:41,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668898599] [2022-11-23 04:00:41,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668898599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:00:41,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:00:41,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 04:00:41,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542918769] [2022-11-23 04:00:41,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:00:41,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 04:00:41,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:00:41,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 04:00:41,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 04:00:41,919 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 133 [2022-11-23 04:00:41,920 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 29 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:41,920 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 04:00:41,920 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 133 [2022-11-23 04:00:41,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 04:00:42,045 INFO L130 PetriNetUnfolder]: 128/281 cut-off events. [2022-11-23 04:00:42,046 INFO L131 PetriNetUnfolder]: For 62/62 co-relation queries the response was YES. [2022-11-23 04:00:42,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 659 conditions, 281 events. 128/281 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1386 event pairs, 69 based on Foata normal form. 16/245 useless extension candidates. Maximal degree in co-relation 263. Up to 163 conditions per place. [2022-11-23 04:00:42,049 INFO L137 encePairwiseOnDemand]: 128/133 looper letters, 20 selfloop transitions, 4 changer transitions 4/36 dead transitions. [2022-11-23 04:00:42,050 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 159 flow [2022-11-23 04:00:42,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 04:00:42,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 04:00:42,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 236 transitions. [2022-11-23 04:00:42,052 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5914786967418546 [2022-11-23 04:00:42,053 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 236 transitions. [2022-11-23 04:00:42,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 236 transitions. [2022-11-23 04:00:42,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 04:00:42,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 236 transitions. [2022-11-23 04:00:42,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:42,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:42,057 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:42,057 INFO L175 Difference]: Start difference. First operand has 33 places, 29 transitions, 88 flow. Second operand 3 states and 236 transitions. [2022-11-23 04:00:42,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 159 flow [2022-11-23 04:00:42,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 36 transitions, 149 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 04:00:42,059 INFO L231 Difference]: Finished difference. Result has 34 places, 29 transitions, 92 flow [2022-11-23 04:00:42,060 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=34, PETRI_TRANSITIONS=29} [2022-11-23 04:00:42,061 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2022-11-23 04:00:42,061 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 29 transitions, 92 flow [2022-11-23 04:00:42,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:42,062 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 04:00:42,062 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 04:00:42,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 04:00:42,062 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-23 04:00:42,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:00:42,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1596930920, now seen corresponding path program 1 times [2022-11-23 04:00:42,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:00:42,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111892482] [2022-11-23 04:00:42,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:00:42,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:00:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:00:42,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 04:00:42,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:00:42,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111892482] [2022-11-23 04:00:42,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111892482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:00:42,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:00:42,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 04:00:42,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070570984] [2022-11-23 04:00:42,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:00:42,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 04:00:42,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:00:42,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 04:00:42,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 04:00:42,243 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 133 [2022-11-23 04:00:42,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 29 transitions, 92 flow. Second operand has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:42,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 04:00:42,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 133 [2022-11-23 04:00:42,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 04:00:42,540 INFO L130 PetriNetUnfolder]: 343/662 cut-off events. [2022-11-23 04:00:42,540 INFO L131 PetriNetUnfolder]: For 244/244 co-relation queries the response was YES. [2022-11-23 04:00:42,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1445 conditions, 662 events. 343/662 cut-off events. For 244/244 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3334 event pairs, 55 based on Foata normal form. 26/640 useless extension candidates. Maximal degree in co-relation 1216. Up to 266 conditions per place. [2022-11-23 04:00:42,547 INFO L137 encePairwiseOnDemand]: 123/133 looper letters, 42 selfloop transitions, 10 changer transitions 31/86 dead transitions. [2022-11-23 04:00:42,547 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 86 transitions, 405 flow [2022-11-23 04:00:42,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 04:00:42,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-23 04:00:42,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 709 transitions. [2022-11-23 04:00:42,555 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5330827067669173 [2022-11-23 04:00:42,555 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 709 transitions. [2022-11-23 04:00:42,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 709 transitions. [2022-11-23 04:00:42,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 04:00:42,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 709 transitions. [2022-11-23 04:00:42,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 70.9) internal successors, (709), 10 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:42,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:42,563 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:42,563 INFO L175 Difference]: Start difference. First operand has 34 places, 29 transitions, 92 flow. Second operand 10 states and 709 transitions. [2022-11-23 04:00:42,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 86 transitions, 405 flow [2022-11-23 04:00:42,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 86 transitions, 399 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 04:00:42,567 INFO L231 Difference]: Finished difference. Result has 50 places, 37 transitions, 178 flow [2022-11-23 04:00:42,567 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=178, PETRI_PLACES=50, PETRI_TRANSITIONS=37} [2022-11-23 04:00:42,568 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 18 predicate places. [2022-11-23 04:00:42,568 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 37 transitions, 178 flow [2022-11-23 04:00:42,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:42,569 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 04:00:42,569 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 04:00:42,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 04:00:42,570 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-23 04:00:42,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:00:42,570 INFO L85 PathProgramCache]: Analyzing trace with hash -24431774, now seen corresponding path program 2 times [2022-11-23 04:00:42,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:00:42,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772633962] [2022-11-23 04:00:42,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:00:42,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:00:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:00:42,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 04:00:42,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:00:42,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772633962] [2022-11-23 04:00:42,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772633962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:00:42,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:00:42,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 04:00:42,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455627066] [2022-11-23 04:00:42,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:00:42,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 04:00:42,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:00:42,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 04:00:42,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 04:00:42,738 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 133 [2022-11-23 04:00:42,739 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 37 transitions, 178 flow. Second operand has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:42,739 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 04:00:42,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 133 [2022-11-23 04:00:42,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 04:00:42,948 INFO L130 PetriNetUnfolder]: 235/450 cut-off events. [2022-11-23 04:00:42,948 INFO L131 PetriNetUnfolder]: For 604/608 co-relation queries the response was YES. [2022-11-23 04:00:42,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1371 conditions, 450 events. 235/450 cut-off events. For 604/608 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2005 event pairs, 31 based on Foata normal form. 20/452 useless extension candidates. Maximal degree in co-relation 938. Up to 130 conditions per place. [2022-11-23 04:00:42,951 INFO L137 encePairwiseOnDemand]: 123/133 looper letters, 0 selfloop transitions, 0 changer transitions 78/78 dead transitions. [2022-11-23 04:00:42,952 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 78 transitions, 531 flow [2022-11-23 04:00:42,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 04:00:42,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-23 04:00:42,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 625 transitions. [2022-11-23 04:00:42,956 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5221386800334169 [2022-11-23 04:00:42,957 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 625 transitions. [2022-11-23 04:00:42,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 625 transitions. [2022-11-23 04:00:42,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 04:00:42,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 625 transitions. [2022-11-23 04:00:42,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 69.44444444444444) internal successors, (625), 9 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:42,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 133.0) internal successors, (1330), 10 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:42,964 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 133.0) internal successors, (1330), 10 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:42,964 INFO L175 Difference]: Start difference. First operand has 50 places, 37 transitions, 178 flow. Second operand 9 states and 625 transitions. [2022-11-23 04:00:42,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 78 transitions, 531 flow [2022-11-23 04:00:42,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 78 transitions, 451 flow, removed 28 selfloop flow, removed 6 redundant places. [2022-11-23 04:00:42,974 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2022-11-23 04:00:42,974 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2022-11-23 04:00:42,975 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 15 predicate places. [2022-11-23 04:00:42,975 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2022-11-23 04:00:42,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:42,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-11-23 04:00:42,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-11-23 04:00:42,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-11-23 04:00:42,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-11-23 04:00:42,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-11-23 04:00:42,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-11-23 04:00:42,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 04:00:42,981 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-11-23 04:00:42,988 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 04:00:42,988 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 04:00:42,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:00:42 BasicIcfg [2022-11-23 04:00:42,993 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 04:00:42,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 04:00:42,994 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 04:00:42,994 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 04:00:42,995 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:00:38" (3/4) ... [2022-11-23 04:00:42,998 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 04:00:43,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2022-11-23 04:00:43,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2022-11-23 04:00:43,009 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-23 04:00:43,010 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 04:00:43,010 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 04:00:43,010 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 04:00:43,044 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 04:00:43,044 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 04:00:43,045 INFO L158 Benchmark]: Toolchain (without parser) took 6165.84ms. Allocated memory is still 211.8MB. Free memory was 164.2MB in the beginning and 144.6MB in the end (delta: 19.6MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2022-11-23 04:00:43,045 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 142.6MB. Free memory was 81.7MB in the beginning and 81.6MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 04:00:43,046 INFO L158 Benchmark]: CACSL2BoogieTranslator took 599.73ms. Allocated memory is still 211.8MB. Free memory was 164.2MB in the beginning and 144.6MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-23 04:00:43,046 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.50ms. Allocated memory is still 211.8MB. Free memory was 144.6MB in the beginning and 142.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 04:00:43,047 INFO L158 Benchmark]: Boogie Preprocessor took 32.79ms. Allocated memory is still 211.8MB. Free memory was 142.4MB in the beginning and 141.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 04:00:43,047 INFO L158 Benchmark]: RCFGBuilder took 475.56ms. Allocated memory is still 211.8MB. Free memory was 141.1MB in the beginning and 127.8MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 04:00:43,048 INFO L158 Benchmark]: TraceAbstraction took 4945.38ms. Allocated memory is still 211.8MB. Free memory was 127.2MB in the beginning and 147.8MB in the end (delta: -20.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 04:00:43,048 INFO L158 Benchmark]: Witness Printer took 50.55ms. Allocated memory is still 211.8MB. Free memory was 147.8MB in the beginning and 144.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 04:00:43,050 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 142.6MB. Free memory was 81.7MB in the beginning and 81.6MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 599.73ms. Allocated memory is still 211.8MB. Free memory was 164.2MB in the beginning and 144.6MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.50ms. Allocated memory is still 211.8MB. Free memory was 144.6MB in the beginning and 142.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.79ms. Allocated memory is still 211.8MB. Free memory was 142.4MB in the beginning and 141.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 475.56ms. Allocated memory is still 211.8MB. Free memory was 141.1MB in the beginning and 127.8MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4945.38ms. Allocated memory is still 211.8MB. Free memory was 127.2MB in the beginning and 147.8MB in the end (delta: -20.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 50.55ms. Allocated memory is still 211.8MB. Free memory was 147.8MB in the beginning and 144.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.5s, 71 PlacesBefore, 32 PlacesAfterwards, 70 TransitionsBefore, 28 TransitionsAfterwards, 1188 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 51 TotalNumberOfCompositions, 3428 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1545, independent: 1379, independent conditional: 0, independent unconditional: 1379, dependent: 166, dependent conditional: 0, dependent unconditional: 166, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 757, independent: 725, independent conditional: 0, independent unconditional: 725, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 757, independent: 714, independent conditional: 0, independent unconditional: 714, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 43, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 75, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1545, independent: 654, independent conditional: 0, independent unconditional: 654, dependent: 134, dependent conditional: 0, dependent unconditional: 134, unknown: 757, unknown conditional: 0, unknown unconditional: 757] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 118, Positive conditional cache size: 0, Positive unconditional cache size: 118, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 753]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 725]: 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, 111 locations, 6 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: 4.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 184 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 144 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 529 IncrementalHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 23 mSDtfsCounter, 529 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=3, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 110 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 04:00:43,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20e4db94-5d47-48a6-8331-8bbd543a5a32/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE