./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59df05fc-9558-4997-9695-64accee184b5/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59df05fc-9558-4997-9695-64accee184b5/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59df05fc-9558-4997-9695-64accee184b5/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59df05fc-9558-4997-9695-64accee184b5/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59df05fc-9558-4997-9695-64accee184b5/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59df05fc-9558-4997-9695-64accee184b5/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 --- 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-e04fb08 [2022-11-16 11:44:51,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:44:51,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:44:51,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:44:51,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:44:51,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:44:51,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:44:51,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:44:51,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:44:51,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:44:51,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:44:51,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:44:51,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:44:51,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:44:51,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:44:51,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:44:51,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:44:51,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:44:51,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:44:51,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:44:51,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:44:51,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:44:51,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:44:51,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:44:51,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:44:51,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:44:51,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:44:51,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:44:51,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:44:51,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:44:51,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:44:51,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:44:51,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:44:51,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:44:51,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:44:51,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:44:51,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:44:51,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:44:51,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:44:51,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:44:51,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:44:51,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59df05fc-9558-4997-9695-64accee184b5/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:44:51,254 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:44:51,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:44:51,255 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:44:51,255 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:44:51,256 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:44:51,257 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:44:51,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:44:51,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:44:51,258 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:44:51,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:44:51,259 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:44:51,260 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:44:51,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:44:51,260 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:44:51,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:44:51,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:44:51,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:44:51,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:44:51,261 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:44:51,261 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:44:51,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:44:51,262 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:44:51,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:44:51,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:44:51,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:44:51,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:44:51,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:44:51,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:44:51,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:44:51,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:44:51,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:44:51,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:44:51,266 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:44:51,266 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:44:51,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:44:51,266 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_59df05fc-9558-4997-9695-64accee184b5/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59df05fc-9558-4997-9695-64accee184b5/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 [2022-11-16 11:44:51,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:44:51,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:44:51,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:44:51,581 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:44:51,582 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:44:51,584 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59df05fc-9558-4997-9695-64accee184b5/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2022-11-16 11:44:51,656 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59df05fc-9558-4997-9695-64accee184b5/bin/uautomizer-tPACEb0tL8/data/07ec7b985/b43ce539be484e51bd2dd22e63824626/FLAG848523ba1 [2022-11-16 11:44:52,386 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:44:52,387 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59df05fc-9558-4997-9695-64accee184b5/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2022-11-16 11:44:52,405 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59df05fc-9558-4997-9695-64accee184b5/bin/uautomizer-tPACEb0tL8/data/07ec7b985/b43ce539be484e51bd2dd22e63824626/FLAG848523ba1 [2022-11-16 11:44:52,587 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59df05fc-9558-4997-9695-64accee184b5/bin/uautomizer-tPACEb0tL8/data/07ec7b985/b43ce539be484e51bd2dd22e63824626 [2022-11-16 11:44:52,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:44:52,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:44:52,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:44:52,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:44:52,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:44:52,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:44:52" (1/1) ... [2022-11-16 11:44:52,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f54bd29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:52, skipping insertion in model container [2022-11-16 11:44:52,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:44:52" (1/1) ... [2022-11-16 11:44:52,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:44:52,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:44:53,004 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 11:44:53,396 WARN L229 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_59df05fc-9558-4997-9695-64accee184b5/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i[55568,55581] [2022-11-16 11:44:53,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:44:53,444 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:44:53,477 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 11:44:53,508 WARN L229 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_59df05fc-9558-4997-9695-64accee184b5/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i[55568,55581] [2022-11-16 11:44:53,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:44:53,620 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:44:53,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:53 WrapperNode [2022-11-16 11:44:53,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:44:53,622 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:44:53,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:44:53,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:44:53,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:53" (1/1) ... [2022-11-16 11:44:53,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:53" (1/1) ... [2022-11-16 11:44:53,696 INFO L138 Inliner]: procedures = 325, calls = 53, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2022-11-16 11:44:53,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:44:53,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:44:53,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:44:53,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:44:53,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:53" (1/1) ... [2022-11-16 11:44:53,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:53" (1/1) ... [2022-11-16 11:44:53,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:53" (1/1) ... [2022-11-16 11:44:53,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:53" (1/1) ... [2022-11-16 11:44:53,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:53" (1/1) ... [2022-11-16 11:44:53,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:53" (1/1) ... [2022-11-16 11:44:53,755 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:53" (1/1) ... [2022-11-16 11:44:53,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:53" (1/1) ... [2022-11-16 11:44:53,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:44:53,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:44:53,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:44:53,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:44:53,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:53" (1/1) ... [2022-11-16 11:44:53,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:44:53,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59df05fc-9558-4997-9695-64accee184b5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:44:53,795 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59df05fc-9558-4997-9695-64accee184b5/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:44:53,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59df05fc-9558-4997-9695-64accee184b5/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:44:53,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:44:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:44:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:44:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:44:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:44:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2022-11-16 11:44:53,852 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2022-11-16 11:44:53,853 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:44:53,853 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:44:53,853 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:44:53,853 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:44:53,853 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 11:44:53,853 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 11:44:53,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:44:53,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:44:53,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:44:53,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:44:53,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:44:53,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:44:53,856 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:44:54,101 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:44:54,104 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:44:54,599 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:44:54,639 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:44:54,640 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:44:54,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:44:54 BoogieIcfgContainer [2022-11-16 11:44:54,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:44:54,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:44:54,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:44:54,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:44:54,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:44:52" (1/3) ... [2022-11-16 11:44:54,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263a9340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:44:54, skipping insertion in model container [2022-11-16 11:44:54,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:53" (2/3) ... [2022-11-16 11:44:54,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263a9340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:44:54, skipping insertion in model container [2022-11-16 11:44:54,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:44:54" (3/3) ... [2022-11-16 11:44:54,654 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2022-11-16 11:44:54,665 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:44:54,677 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:44:54,677 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2022-11-16 11:44:54,678 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:44:54,903 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2022-11-16 11:44:54,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 294 places, 285 transitions, 677 flow [2022-11-16 11:44:55,123 INFO L130 PetriNetUnfolder]: 7/198 cut-off events. [2022-11-16 11:44:55,123 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 11:44:55,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 198 events. 7/198 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 135 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 165. Up to 3 conditions per place. [2022-11-16 11:44:55,129 INFO L82 GeneralOperation]: Start removeDead. Operand has 294 places, 285 transitions, 677 flow [2022-11-16 11:44:55,136 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 191 places, 177 transitions, 405 flow [2022-11-16 11:44:55,147 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:44:55,155 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;@30616aa7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:44:55,156 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2022-11-16 11:44:55,167 INFO L130 PetriNetUnfolder]: 0/33 cut-off events. [2022-11-16 11:44:55,167 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:44:55,168 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:44:55,168 INFO L209 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] [2022-11-16 11:44:55,169 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:44:55,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:55,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1196575310, now seen corresponding path program 1 times [2022-11-16 11:44:55,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:55,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890242162] [2022-11-16 11:44:55,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:55,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:56,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:44:56,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:56,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890242162] [2022-11-16 11:44:56,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890242162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:56,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:56,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:44:56,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143930602] [2022-11-16 11:44:56,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:56,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:44:56,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:56,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:44:56,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:44:56,084 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 287 [2022-11-16 11:44:56,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 177 transitions, 405 flow. Second operand has 6 states, 6 states have (on average 171.66666666666666) internal successors, (1030), 6 states have internal predecessors, (1030), 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) [2022-11-16 11:44:56,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:44:56,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 287 [2022-11-16 11:44:56,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:44:59,702 INFO L130 PetriNetUnfolder]: 6956/10930 cut-off events. [2022-11-16 11:44:59,702 INFO L131 PetriNetUnfolder]: For 553/580 co-relation queries the response was YES. [2022-11-16 11:44:59,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21601 conditions, 10930 events. 6956/10930 cut-off events. For 553/580 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 66468 event pairs, 3015 based on Foata normal form. 8/10037 useless extension candidates. Maximal degree in co-relation 21521. Up to 7339 conditions per place. [2022-11-16 11:44:59,827 INFO L137 encePairwiseOnDemand]: 269/287 looper letters, 251 selfloop transitions, 21 changer transitions 0/375 dead transitions. [2022-11-16 11:44:59,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 375 transitions, 1528 flow [2022-11-16 11:44:59,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:44:59,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:44:59,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1333 transitions. [2022-11-16 11:44:59,855 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7740998838559814 [2022-11-16 11:44:59,856 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1333 transitions. [2022-11-16 11:44:59,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1333 transitions. [2022-11-16 11:44:59,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:44:59,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1333 transitions. [2022-11-16 11:44:59,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 222.16666666666666) internal successors, (1333), 6 states have internal predecessors, (1333), 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) [2022-11-16 11:44:59,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 287.0) internal successors, (2009), 7 states have internal predecessors, (2009), 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) [2022-11-16 11:44:59,889 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 287.0) internal successors, (2009), 7 states have internal predecessors, (2009), 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) [2022-11-16 11:44:59,891 INFO L175 Difference]: Start difference. First operand has 191 places, 177 transitions, 405 flow. Second operand 6 states and 1333 transitions. [2022-11-16 11:44:59,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 375 transitions, 1528 flow [2022-11-16 11:44:59,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 375 transitions, 1372 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-11-16 11:44:59,932 INFO L231 Difference]: Finished difference. Result has 181 places, 189 transitions, 497 flow [2022-11-16 11:44:59,934 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=497, PETRI_PLACES=181, PETRI_TRANSITIONS=189} [2022-11-16 11:44:59,941 INFO L288 CegarLoopForPetriNet]: 191 programPoint places, -10 predicate places. [2022-11-16 11:44:59,942 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 189 transitions, 497 flow [2022-11-16 11:44:59,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.66666666666666) internal successors, (1030), 6 states have internal predecessors, (1030), 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) [2022-11-16 11:44:59,944 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:44:59,944 INFO L209 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] [2022-11-16 11:44:59,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:44:59,945 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:44:59,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:59,946 INFO L85 PathProgramCache]: Analyzing trace with hash 947714976, now seen corresponding path program 1 times [2022-11-16 11:44:59,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:59,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791306779] [2022-11-16 11:44:59,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:59,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:00,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:00,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:00,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791306779] [2022-11-16 11:45:00,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791306779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:00,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:00,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:45:00,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39662051] [2022-11-16 11:45:00,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:00,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:45:00,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:00,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:45:00,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:45:00,070 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 287 [2022-11-16 11:45:00,071 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 189 transitions, 497 flow. Second operand has 3 states, 3 states have (on average 232.66666666666666) internal successors, (698), 3 states have internal predecessors, (698), 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) [2022-11-16 11:45:00,072 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:00,072 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 287 [2022-11-16 11:45:00,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:00,585 INFO L130 PetriNetUnfolder]: 777/2173 cut-off events. [2022-11-16 11:45:00,586 INFO L131 PetriNetUnfolder]: For 1115/1300 co-relation queries the response was YES. [2022-11-16 11:45:00,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4673 conditions, 2173 events. 777/2173 cut-off events. For 1115/1300 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 13828 event pairs, 306 based on Foata normal form. 0/1981 useless extension candidates. Maximal degree in co-relation 2975. Up to 947 conditions per place. [2022-11-16 11:45:00,610 INFO L137 encePairwiseOnDemand]: 284/287 looper letters, 45 selfloop transitions, 2 changer transitions 0/188 dead transitions. [2022-11-16 11:45:00,610 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 188 transitions, 589 flow [2022-11-16 11:45:00,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:45:00,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:45:00,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 725 transitions. [2022-11-16 11:45:00,613 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8420441347270615 [2022-11-16 11:45:00,613 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 725 transitions. [2022-11-16 11:45:00,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 725 transitions. [2022-11-16 11:45:00,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:00,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 725 transitions. [2022-11-16 11:45:00,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 241.66666666666666) internal successors, (725), 3 states have internal predecessors, (725), 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) [2022-11-16 11:45:00,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 287.0) internal successors, (1148), 4 states have internal predecessors, (1148), 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) [2022-11-16 11:45:00,620 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 287.0) internal successors, (1148), 4 states have internal predecessors, (1148), 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) [2022-11-16 11:45:00,620 INFO L175 Difference]: Start difference. First operand has 181 places, 189 transitions, 497 flow. Second operand 3 states and 725 transitions. [2022-11-16 11:45:00,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 188 transitions, 589 flow [2022-11-16 11:45:00,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 188 transitions, 589 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:45:00,632 INFO L231 Difference]: Finished difference. Result has 182 places, 188 transitions, 499 flow [2022-11-16 11:45:00,633 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=499, PETRI_PLACES=182, PETRI_TRANSITIONS=188} [2022-11-16 11:45:00,634 INFO L288 CegarLoopForPetriNet]: 191 programPoint places, -9 predicate places. [2022-11-16 11:45:00,634 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 188 transitions, 499 flow [2022-11-16 11:45:00,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.66666666666666) internal successors, (698), 3 states have internal predecessors, (698), 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) [2022-11-16 11:45:00,635 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:00,635 INFO L209 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] [2022-11-16 11:45:00,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:45:00,636 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread0Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:45:00,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:00,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1507116799, now seen corresponding path program 1 times [2022-11-16 11:45:00,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:00,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097831296] [2022-11-16 11:45:00,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:00,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:01,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:01,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:01,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097831296] [2022-11-16 11:45:01,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097831296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:01,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:01,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:45:01,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489114920] [2022-11-16 11:45:01,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:01,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:45:01,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:01,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:45:01,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:45:01,096 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 287 [2022-11-16 11:45:01,098 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 188 transitions, 499 flow. Second operand has 6 states, 6 states have (on average 172.66666666666666) internal successors, (1036), 6 states have internal predecessors, (1036), 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) [2022-11-16 11:45:01,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:01,098 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 287 [2022-11-16 11:45:01,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:03,617 INFO L130 PetriNetUnfolder]: 6392/11315 cut-off events. [2022-11-16 11:45:03,617 INFO L131 PetriNetUnfolder]: For 6232/6268 co-relation queries the response was YES. [2022-11-16 11:45:03,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29992 conditions, 11315 events. 6392/11315 cut-off events. For 6232/6268 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 76571 event pairs, 1683 based on Foata normal form. 24/10733 useless extension candidates. Maximal degree in co-relation 24960. Up to 8953 conditions per place. [2022-11-16 11:45:03,758 INFO L137 encePairwiseOnDemand]: 278/287 looper letters, 111 selfloop transitions, 24 changer transitions 0/236 dead transitions. [2022-11-16 11:45:03,758 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 236 transitions, 1012 flow [2022-11-16 11:45:03,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:45:03,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:45:03,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1126 transitions. [2022-11-16 11:45:03,762 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6538908246225319 [2022-11-16 11:45:03,762 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1126 transitions. [2022-11-16 11:45:03,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1126 transitions. [2022-11-16 11:45:03,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:03,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1126 transitions. [2022-11-16 11:45:03,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 187.66666666666666) internal successors, (1126), 6 states have internal predecessors, (1126), 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) [2022-11-16 11:45:03,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 287.0) internal successors, (2009), 7 states have internal predecessors, (2009), 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) [2022-11-16 11:45:03,772 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 287.0) internal successors, (2009), 7 states have internal predecessors, (2009), 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) [2022-11-16 11:45:03,772 INFO L175 Difference]: Start difference. First operand has 182 places, 188 transitions, 499 flow. Second operand 6 states and 1126 transitions. [2022-11-16 11:45:03,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 236 transitions, 1012 flow [2022-11-16 11:45:03,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 236 transitions, 1008 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:45:03,831 INFO L231 Difference]: Finished difference. Result has 185 places, 207 transitions, 714 flow [2022-11-16 11:45:03,832 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=714, PETRI_PLACES=185, PETRI_TRANSITIONS=207} [2022-11-16 11:45:03,834 INFO L288 CegarLoopForPetriNet]: 191 programPoint places, -6 predicate places. [2022-11-16 11:45:03,834 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 207 transitions, 714 flow [2022-11-16 11:45:03,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 172.66666666666666) internal successors, (1036), 6 states have internal predecessors, (1036), 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) [2022-11-16 11:45:03,836 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:03,836 INFO L209 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] [2022-11-16 11:45:03,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:45:03,836 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:45:03,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:03,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1431957031, now seen corresponding path program 1 times [2022-11-16 11:45:03,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:03,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538118115] [2022-11-16 11:45:03,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:03,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:05,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:05,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:05,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538118115] [2022-11-16 11:45:05,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538118115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:05,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:05,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:45:05,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517601273] [2022-11-16 11:45:05,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:05,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:45:05,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:05,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:45:05,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:45:05,164 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 287 [2022-11-16 11:45:05,167 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 207 transitions, 714 flow. Second operand has 12 states, 12 states have (on average 144.83333333333334) internal successors, (1738), 12 states have internal predecessors, (1738), 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) [2022-11-16 11:45:05,167 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:05,167 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 287 [2022-11-16 11:45:05,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:10,699 INFO L130 PetriNetUnfolder]: 9736/16194 cut-off events. [2022-11-16 11:45:10,699 INFO L131 PetriNetUnfolder]: For 21265/21290 co-relation queries the response was YES. [2022-11-16 11:45:10,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51238 conditions, 16194 events. 9736/16194 cut-off events. For 21265/21290 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 105808 event pairs, 3520 based on Foata normal form. 238/15431 useless extension candidates. Maximal degree in co-relation 25681. Up to 7720 conditions per place. [2022-11-16 11:45:10,891 INFO L137 encePairwiseOnDemand]: 269/287 looper letters, 493 selfloop transitions, 92 changer transitions 0/664 dead transitions. [2022-11-16 11:45:10,891 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 664 transitions, 3427 flow [2022-11-16 11:45:10,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:45:10,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 11:45:10,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3079 transitions. [2022-11-16 11:45:10,903 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5960123886953155 [2022-11-16 11:45:10,903 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3079 transitions. [2022-11-16 11:45:10,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3079 transitions. [2022-11-16 11:45:10,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:10,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3079 transitions. [2022-11-16 11:45:10,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 171.05555555555554) internal successors, (3079), 18 states have internal predecessors, (3079), 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) [2022-11-16 11:45:10,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 287.0) internal successors, (5453), 19 states have internal predecessors, (5453), 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) [2022-11-16 11:45:10,933 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 287.0) internal successors, (5453), 19 states have internal predecessors, (5453), 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) [2022-11-16 11:45:10,933 INFO L175 Difference]: Start difference. First operand has 185 places, 207 transitions, 714 flow. Second operand 18 states and 3079 transitions. [2022-11-16 11:45:10,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 664 transitions, 3427 flow [2022-11-16 11:45:11,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 664 transitions, 3276 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:45:11,073 INFO L231 Difference]: Finished difference. Result has 213 places, 278 transitions, 1580 flow [2022-11-16 11:45:11,073 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=687, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1580, PETRI_PLACES=213, PETRI_TRANSITIONS=278} [2022-11-16 11:45:11,075 INFO L288 CegarLoopForPetriNet]: 191 programPoint places, 22 predicate places. [2022-11-16 11:45:11,075 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 278 transitions, 1580 flow [2022-11-16 11:45:11,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 144.83333333333334) internal successors, (1738), 12 states have internal predecessors, (1738), 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) [2022-11-16 11:45:11,076 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:11,077 INFO L209 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] [2022-11-16 11:45:11,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:45:11,077 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:45:11,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:11,078 INFO L85 PathProgramCache]: Analyzing trace with hash -993946001, now seen corresponding path program 2 times [2022-11-16 11:45:11,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:11,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317669488] [2022-11-16 11:45:11,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:11,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:11,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:11,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:11,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317669488] [2022-11-16 11:45:11,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317669488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:11,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:11,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:45:11,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312410006] [2022-11-16 11:45:11,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:11,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:45:11,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:11,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:45:11,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:45:11,972 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 287 [2022-11-16 11:45:11,974 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 278 transitions, 1580 flow. Second operand has 10 states, 10 states have (on average 160.9) internal successors, (1609), 10 states have internal predecessors, (1609), 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) [2022-11-16 11:45:11,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:11,975 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 287 [2022-11-16 11:45:11,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:17,112 INFO L130 PetriNetUnfolder]: 11963/20700 cut-off events. [2022-11-16 11:45:17,113 INFO L131 PetriNetUnfolder]: For 51240/51286 co-relation queries the response was YES. [2022-11-16 11:45:17,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72096 conditions, 20700 events. 11963/20700 cut-off events. For 51240/51286 co-relation queries the response was YES. Maximal size of possible extension queue 595. Compared 144722 event pairs, 4135 based on Foata normal form. 247/19695 useless extension candidates. Maximal degree in co-relation 68846. Up to 7595 conditions per place. [2022-11-16 11:45:17,615 INFO L137 encePairwiseOnDemand]: 277/287 looper letters, 453 selfloop transitions, 45 changer transitions 0/594 dead transitions. [2022-11-16 11:45:17,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 594 transitions, 3898 flow [2022-11-16 11:45:17,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:45:17,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-16 11:45:17,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2877 transitions. [2022-11-16 11:45:17,623 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6265243902439024 [2022-11-16 11:45:17,623 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2877 transitions. [2022-11-16 11:45:17,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2877 transitions. [2022-11-16 11:45:17,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:17,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2877 transitions. [2022-11-16 11:45:17,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 179.8125) internal successors, (2877), 16 states have internal predecessors, (2877), 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) [2022-11-16 11:45:17,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 287.0) internal successors, (4879), 17 states have internal predecessors, (4879), 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) [2022-11-16 11:45:17,643 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 287.0) internal successors, (4879), 17 states have internal predecessors, (4879), 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) [2022-11-16 11:45:17,644 INFO L175 Difference]: Start difference. First operand has 213 places, 278 transitions, 1580 flow. Second operand 16 states and 2877 transitions. [2022-11-16 11:45:17,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 594 transitions, 3898 flow [2022-11-16 11:45:18,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 594 transitions, 3878 flow, removed 10 selfloop flow, removed 0 redundant places. [2022-11-16 11:45:18,017 INFO L231 Difference]: Finished difference. Result has 237 places, 310 transitions, 1976 flow [2022-11-16 11:45:18,017 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=1576, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1976, PETRI_PLACES=237, PETRI_TRANSITIONS=310} [2022-11-16 11:45:18,018 INFO L288 CegarLoopForPetriNet]: 191 programPoint places, 46 predicate places. [2022-11-16 11:45:18,018 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 310 transitions, 1976 flow [2022-11-16 11:45:18,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 160.9) internal successors, (1609), 10 states have internal predecessors, (1609), 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) [2022-11-16 11:45:18,019 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:18,020 INFO L209 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] [2022-11-16 11:45:18,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:45:18,020 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:45:18,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:18,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1294752337, now seen corresponding path program 3 times [2022-11-16 11:45:18,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:18,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906567027] [2022-11-16 11:45:18,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:18,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:18,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:18,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:18,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906567027] [2022-11-16 11:45:18,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906567027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:18,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:18,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:45:18,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882394445] [2022-11-16 11:45:18,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:18,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:45:18,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:18,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:45:18,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:45:18,981 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 287 [2022-11-16 11:45:18,983 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 310 transitions, 1976 flow. Second operand has 12 states, 12 states have (on average 144.83333333333334) internal successors, (1738), 12 states have internal predecessors, (1738), 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) [2022-11-16 11:45:18,983 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:18,983 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 287 [2022-11-16 11:45:18,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:26,285 INFO L130 PetriNetUnfolder]: 13882/23994 cut-off events. [2022-11-16 11:45:26,285 INFO L131 PetriNetUnfolder]: For 87248/87339 co-relation queries the response was YES. [2022-11-16 11:45:26,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91340 conditions, 23994 events. 13882/23994 cut-off events. For 87248/87339 co-relation queries the response was YES. Maximal size of possible extension queue 682. Compared 171718 event pairs, 5122 based on Foata normal form. 273/22790 useless extension candidates. Maximal degree in co-relation 87759. Up to 12873 conditions per place. [2022-11-16 11:45:26,596 INFO L137 encePairwiseOnDemand]: 270/287 looper letters, 504 selfloop transitions, 117 changer transitions 0/700 dead transitions. [2022-11-16 11:45:26,596 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 700 transitions, 4884 flow [2022-11-16 11:45:26,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:45:26,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 11:45:26,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2571 transitions. [2022-11-16 11:45:26,604 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.597212543554007 [2022-11-16 11:45:26,604 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2571 transitions. [2022-11-16 11:45:26,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2571 transitions. [2022-11-16 11:45:26,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:26,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2571 transitions. [2022-11-16 11:45:26,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 171.4) internal successors, (2571), 15 states have internal predecessors, (2571), 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) [2022-11-16 11:45:26,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 287.0) internal successors, (4592), 16 states have internal predecessors, (4592), 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) [2022-11-16 11:45:26,622 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 287.0) internal successors, (4592), 16 states have internal predecessors, (4592), 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) [2022-11-16 11:45:26,622 INFO L175 Difference]: Start difference. First operand has 237 places, 310 transitions, 1976 flow. Second operand 15 states and 2571 transitions. [2022-11-16 11:45:26,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 700 transitions, 4884 flow [2022-11-16 11:45:27,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 700 transitions, 4787 flow, removed 38 selfloop flow, removed 2 redundant places. [2022-11-16 11:45:27,244 INFO L231 Difference]: Finished difference. Result has 261 places, 367 transitions, 3024 flow [2022-11-16 11:45:27,245 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=1930, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3024, PETRI_PLACES=261, PETRI_TRANSITIONS=367} [2022-11-16 11:45:27,245 INFO L288 CegarLoopForPetriNet]: 191 programPoint places, 70 predicate places. [2022-11-16 11:45:27,246 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 367 transitions, 3024 flow [2022-11-16 11:45:27,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 144.83333333333334) internal successors, (1738), 12 states have internal predecessors, (1738), 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) [2022-11-16 11:45:27,247 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:27,247 INFO L209 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] [2022-11-16 11:45:27,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:45:27,247 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:45:27,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:27,248 INFO L85 PathProgramCache]: Analyzing trace with hash 18769545, now seen corresponding path program 4 times [2022-11-16 11:45:27,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:27,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725837829] [2022-11-16 11:45:27,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:27,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:27,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:27,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:27,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:27,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725837829] [2022-11-16 11:45:27,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725837829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:27,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:27,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:45:27,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924644134] [2022-11-16 11:45:27,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:27,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:45:27,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:27,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:45:27,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:45:27,983 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 287 [2022-11-16 11:45:27,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 367 transitions, 3024 flow. Second operand has 10 states, 10 states have (on average 160.9) internal successors, (1609), 10 states have internal predecessors, (1609), 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) [2022-11-16 11:45:27,986 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:27,986 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 287 [2022-11-16 11:45:27,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:37,030 INFO L130 PetriNetUnfolder]: 19927/34727 cut-off events. [2022-11-16 11:45:37,030 INFO L131 PetriNetUnfolder]: For 192180/192303 co-relation queries the response was YES. [2022-11-16 11:45:37,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140286 conditions, 34727 events. 19927/34727 cut-off events. For 192180/192303 co-relation queries the response was YES. Maximal size of possible extension queue 1093. Compared 268597 event pairs, 9357 based on Foata normal form. 293/32742 useless extension candidates. Maximal degree in co-relation 139623. Up to 16103 conditions per place. [2022-11-16 11:45:37,555 INFO L137 encePairwiseOnDemand]: 273/287 looper letters, 542 selfloop transitions, 108 changer transitions 0/757 dead transitions. [2022-11-16 11:45:37,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 757 transitions, 6515 flow [2022-11-16 11:45:37,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:45:37,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 11:45:37,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2774 transitions. [2022-11-16 11:45:37,565 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6443670150987224 [2022-11-16 11:45:37,565 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2774 transitions. [2022-11-16 11:45:37,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2774 transitions. [2022-11-16 11:45:37,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:37,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2774 transitions. [2022-11-16 11:45:37,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 184.93333333333334) internal successors, (2774), 15 states have internal predecessors, (2774), 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) [2022-11-16 11:45:37,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 287.0) internal successors, (4592), 16 states have internal predecessors, (4592), 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) [2022-11-16 11:45:37,587 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 287.0) internal successors, (4592), 16 states have internal predecessors, (4592), 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) [2022-11-16 11:45:37,587 INFO L175 Difference]: Start difference. First operand has 261 places, 367 transitions, 3024 flow. Second operand 15 states and 2774 transitions. [2022-11-16 11:45:37,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 757 transitions, 6515 flow [2022-11-16 11:45:38,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 757 transitions, 6314 flow, removed 35 selfloop flow, removed 2 redundant places. [2022-11-16 11:45:38,633 INFO L231 Difference]: Finished difference. Result has 283 places, 419 transitions, 3998 flow [2022-11-16 11:45:38,634 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=2916, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3998, PETRI_PLACES=283, PETRI_TRANSITIONS=419} [2022-11-16 11:45:38,634 INFO L288 CegarLoopForPetriNet]: 191 programPoint places, 92 predicate places. [2022-11-16 11:45:38,634 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 419 transitions, 3998 flow [2022-11-16 11:45:38,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 160.9) internal successors, (1609), 10 states have internal predecessors, (1609), 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) [2022-11-16 11:45:38,636 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:38,636 INFO L209 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] [2022-11-16 11:45:38,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:45:38,636 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:45:38,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:38,637 INFO L85 PathProgramCache]: Analyzing trace with hash -44735823, now seen corresponding path program 5 times [2022-11-16 11:45:38,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:38,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330934844] [2022-11-16 11:45:38,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:38,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:39,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:39,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:39,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330934844] [2022-11-16 11:45:39,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330934844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:39,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:39,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:45:39,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284430728] [2022-11-16 11:45:39,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:39,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:45:39,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:39,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:45:39,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:45:39,329 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 287 [2022-11-16 11:45:39,331 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 419 transitions, 3998 flow. Second operand has 12 states, 12 states have (on average 144.83333333333334) internal successors, (1738), 12 states have internal predecessors, (1738), 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) [2022-11-16 11:45:39,331 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:39,331 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 287 [2022-11-16 11:45:39,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:51,521 INFO L130 PetriNetUnfolder]: 25833/45016 cut-off events. [2022-11-16 11:45:51,521 INFO L131 PetriNetUnfolder]: For 254072/254333 co-relation queries the response was YES. [2022-11-16 11:45:51,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186280 conditions, 45016 events. 25833/45016 cut-off events. For 254072/254333 co-relation queries the response was YES. Maximal size of possible extension queue 1406. Compared 364089 event pairs, 10723 based on Foata normal form. 388/42540 useless extension candidates. Maximal degree in co-relation 184546. Up to 20119 conditions per place. [2022-11-16 11:45:52,629 INFO L137 encePairwiseOnDemand]: 270/287 looper letters, 637 selfloop transitions, 184 changer transitions 0/900 dead transitions. [2022-11-16 11:45:52,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 900 transitions, 8206 flow [2022-11-16 11:45:52,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:45:52,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:45:52,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3355 transitions. [2022-11-16 11:45:52,638 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5844947735191638 [2022-11-16 11:45:52,638 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3355 transitions. [2022-11-16 11:45:52,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3355 transitions. [2022-11-16 11:45:52,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:52,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3355 transitions. [2022-11-16 11:45:52,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 167.75) internal successors, (3355), 20 states have internal predecessors, (3355), 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) [2022-11-16 11:45:52,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 287.0) internal successors, (6027), 21 states have internal predecessors, (6027), 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) [2022-11-16 11:45:52,660 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 287.0) internal successors, (6027), 21 states have internal predecessors, (6027), 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) [2022-11-16 11:45:52,660 INFO L175 Difference]: Start difference. First operand has 283 places, 419 transitions, 3998 flow. Second operand 20 states and 3355 transitions. [2022-11-16 11:45:52,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 900 transitions, 8206 flow [2022-11-16 11:45:55,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 900 transitions, 8139 flow, removed 33 selfloop flow, removed 1 redundant places. [2022-11-16 11:45:55,168 INFO L231 Difference]: Finished difference. Result has 317 places, 489 transitions, 5653 flow [2022-11-16 11:45:55,169 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=3943, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5653, PETRI_PLACES=317, PETRI_TRANSITIONS=489} [2022-11-16 11:45:55,170 INFO L288 CegarLoopForPetriNet]: 191 programPoint places, 126 predicate places. [2022-11-16 11:45:55,170 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 489 transitions, 5653 flow [2022-11-16 11:45:55,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 144.83333333333334) internal successors, (1738), 12 states have internal predecessors, (1738), 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) [2022-11-16 11:45:55,171 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:55,171 INFO L209 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] [2022-11-16 11:45:55,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:45:55,171 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:45:55,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:55,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1824284082, now seen corresponding path program 1 times [2022-11-16 11:45:55,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:55,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19495769] [2022-11-16 11:45:55,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:55,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:55,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:55,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:55,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19495769] [2022-11-16 11:45:55,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19495769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:55,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:55,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:45:55,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204464125] [2022-11-16 11:45:55,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:55,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:45:55,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:55,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:45:55,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:45:55,790 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 287 [2022-11-16 11:45:55,792 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 489 transitions, 5653 flow. Second operand has 10 states, 10 states have (on average 160.9) internal successors, (1609), 10 states have internal predecessors, (1609), 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) [2022-11-16 11:45:55,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:55,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 287 [2022-11-16 11:45:55,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand