./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1fb53f5-70a5-47c0-ac16-76c1cabb21eb/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1fb53f5-70a5-47c0-ac16-76c1cabb21eb/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1fb53f5-70a5-47c0-ac16-76c1cabb21eb/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1fb53f5-70a5-47c0-ac16-76c1cabb21eb/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1fb53f5-70a5-47c0-ac16-76c1cabb21eb/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1fb53f5-70a5-47c0-ac16-76c1cabb21eb/bin/uautomizer-uyxdKDjOR8 --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 4221a6bcee4165c3049aa9b16a70613c9e290b9c0a4ff35026a6f2dcff16f9ff --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 18:26:00,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:26:00,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:26:00,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:26:00,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:26:00,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:26:00,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:26:00,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:26:00,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:26:00,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:26:00,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:26:00,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:26:00,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:26:00,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:26:00,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:26:00,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:26:00,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:26:00,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:26:00,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:26:00,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:26:00,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:26:00,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:26:00,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:26:00,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:26:00,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:26:00,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:26:00,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:26:00,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:26:00,676 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:26:00,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:26:00,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:26:00,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:26:00,679 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:26:00,680 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:26:00,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:26:00,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:26:00,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:26:00,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:26:00,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:26:00,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:26:00,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:26:00,684 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1fb53f5-70a5-47c0-ac16-76c1cabb21eb/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 18:26:00,704 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:26:00,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:26:00,704 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:26:00,705 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:26:00,705 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:26:00,705 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:26:00,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:26:00,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:26:00,706 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:26:00,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:26:00,707 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:26:00,707 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:26:00,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:26:00,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:26:00,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:26:00,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:26:00,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:26:00,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:26:00,708 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 18:26:00,708 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:26:00,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:26:00,709 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:26:00,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:26:00,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:26:00,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:26:00,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:26:00,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:26:00,709 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:26:00,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:26:00,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:26:00,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:26:00,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:26:00,710 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:26:00,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:26:00,710 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:26:00,711 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:26:00,711 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:26:00,711 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1fb53f5-70a5-47c0-ac16-76c1cabb21eb/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1fb53f5-70a5-47c0-ac16-76c1cabb21eb/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4221a6bcee4165c3049aa9b16a70613c9e290b9c0a4ff35026a6f2dcff16f9ff [2022-12-13 18:26:00,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:26:00,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:26:00,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:26:00,912 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:26:00,912 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:26:00,913 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1fb53f5-70a5-47c0-ac16-76c1cabb21eb/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c [2022-12-13 18:26:03,483 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:26:03,635 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:26:03,635 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1fb53f5-70a5-47c0-ac16-76c1cabb21eb/sv-benchmarks/c/weaver/chl-match-trans.wvr.c [2022-12-13 18:26:03,640 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1fb53f5-70a5-47c0-ac16-76c1cabb21eb/bin/uautomizer-uyxdKDjOR8/data/11f8db6be/d350ef6a6ab441db90e53f1527cdea71/FLAG59993e471 [2022-12-13 18:26:04,058 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1fb53f5-70a5-47c0-ac16-76c1cabb21eb/bin/uautomizer-uyxdKDjOR8/data/11f8db6be/d350ef6a6ab441db90e53f1527cdea71 [2022-12-13 18:26:04,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:26:04,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:26:04,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:26:04,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:26:04,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:26:04,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:26:04" (1/1) ... [2022-12-13 18:26:04,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26239988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:04, skipping insertion in model container [2022-12-13 18:26:04,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:26:04" (1/1) ... [2022-12-13 18:26:04,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:26:04,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:26:04,205 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1fb53f5-70a5-47c0-ac16-76c1cabb21eb/sv-benchmarks/c/weaver/chl-match-trans.wvr.c[2954,2967] [2022-12-13 18:26:04,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:26:04,215 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:26:04,236 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1fb53f5-70a5-47c0-ac16-76c1cabb21eb/sv-benchmarks/c/weaver/chl-match-trans.wvr.c[2954,2967] [2022-12-13 18:26:04,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:26:04,248 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:26:04,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:04 WrapperNode [2022-12-13 18:26:04,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:26:04,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:26:04,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:26:04,249 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:26:04,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:04" (1/1) ... [2022-12-13 18:26:04,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:04" (1/1) ... [2022-12-13 18:26:04,282 INFO L138 Inliner]: procedures = 23, calls = 33, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 339 [2022-12-13 18:26:04,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:26:04,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:26:04,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:26:04,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:26:04,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:04" (1/1) ... [2022-12-13 18:26:04,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:04" (1/1) ... [2022-12-13 18:26:04,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:04" (1/1) ... [2022-12-13 18:26:04,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:04" (1/1) ... [2022-12-13 18:26:04,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:04" (1/1) ... [2022-12-13 18:26:04,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:04" (1/1) ... [2022-12-13 18:26:04,304 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:04" (1/1) ... [2022-12-13 18:26:04,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:04" (1/1) ... [2022-12-13 18:26:04,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:26:04,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:26:04,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:26:04,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:26:04,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:04" (1/1) ... [2022-12-13 18:26:04,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:26:04,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1fb53f5-70a5-47c0-ac16-76c1cabb21eb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:26:04,335 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1fb53f5-70a5-47c0-ac16-76c1cabb21eb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:26:04,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1fb53f5-70a5-47c0-ac16-76c1cabb21eb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:26:04,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:26:04,369 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 18:26:04,370 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 18:26:04,370 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 18:26:04,370 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 18:26:04,370 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 18:26:04,370 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 18:26:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:26:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:26:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 18:26:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:26:04,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:26:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 18:26:04,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:26:04,373 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 18:26:04,463 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:26:04,465 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:26:04,877 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:26:04,891 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:26:04,891 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 18:26:04,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:26:04 BoogieIcfgContainer [2022-12-13 18:26:04,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:26:04,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:26:04,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:26:04,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:26:04,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:26:04" (1/3) ... [2022-12-13 18:26:04,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b964584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:26:04, skipping insertion in model container [2022-12-13 18:26:04,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:04" (2/3) ... [2022-12-13 18:26:04,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b964584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:26:04, skipping insertion in model container [2022-12-13 18:26:04,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:26:04" (3/3) ... [2022-12-13 18:26:04,904 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-trans.wvr.c [2022-12-13 18:26:04,911 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 18:26:04,920 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:26:04,920 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2022-12-13 18:26:04,920 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 18:26:05,030 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-13 18:26:05,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 456 places, 464 transitions, 952 flow [2022-12-13 18:26:05,181 INFO L130 PetriNetUnfolder]: 18/461 cut-off events. [2022-12-13 18:26:05,182 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 18:26:05,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 461 events. 18/461 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 819 event pairs, 0 based on Foata normal form. 0/401 useless extension candidates. Maximal degree in co-relation 308. Up to 2 conditions per place. [2022-12-13 18:26:05,191 INFO L82 GeneralOperation]: Start removeDead. Operand has 456 places, 464 transitions, 952 flow [2022-12-13 18:26:05,198 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 431 places, 437 transitions, 892 flow [2022-12-13 18:26:05,201 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 18:26:05,208 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 431 places, 437 transitions, 892 flow [2022-12-13 18:26:05,211 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 431 places, 437 transitions, 892 flow [2022-12-13 18:26:05,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 431 places, 437 transitions, 892 flow [2022-12-13 18:26:05,281 INFO L130 PetriNetUnfolder]: 16/437 cut-off events. [2022-12-13 18:26:05,281 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 18:26:05,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 437 events. 16/437 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 803 event pairs, 0 based on Foata normal form. 0/380 useless extension candidates. Maximal degree in co-relation 308. Up to 2 conditions per place. [2022-12-13 18:26:05,300 INFO L119 LiptonReduction]: Number of co-enabled transitions 65286 [2022-12-13 18:26:12,677 INFO L134 LiptonReduction]: Checked pairs total: 162741 [2022-12-13 18:26:12,678 INFO L136 LiptonReduction]: Total number of compositions: 453 [2022-12-13 18:26:12,688 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:26:12,692 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;@5c8642a6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:26:12,693 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2022-12-13 18:26:12,694 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 18:26:12,694 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 18:26:12,694 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:26:12,694 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 18:26:12,695 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-12-13 18:26:12,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:12,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1759, now seen corresponding path program 1 times [2022-12-13 18:26:12,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:12,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651409147] [2022-12-13 18:26:12,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:12,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:12,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:12,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:12,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651409147] [2022-12-13 18:26:12,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651409147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:12,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:12,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 18:26:12,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36436233] [2022-12-13 18:26:12,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:12,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 18:26:12,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:12,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 18:26:12,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:26:12,801 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 917 [2022-12-13 18:26:12,803 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 115 transitions, 248 flow. Second operand has 2 states, 2 states have (on average 444.5) internal successors, (889), 2 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:12,803 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:26:12,804 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 917 [2022-12-13 18:26:12,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:26:13,554 INFO L130 PetriNetUnfolder]: 3105/6736 cut-off events. [2022-12-13 18:26:13,555 INFO L131 PetriNetUnfolder]: For 169/169 co-relation queries the response was YES. [2022-12-13 18:26:13,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11379 conditions, 6736 events. 3105/6736 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 57035 event pairs, 2653 based on Foata normal form. 599/6151 useless extension candidates. Maximal degree in co-relation 10461. Up to 4420 conditions per place. [2022-12-13 18:26:13,605 INFO L137 encePairwiseOnDemand]: 897/917 looper letters, 35 selfloop transitions, 0 changer transitions 1/92 dead transitions. [2022-12-13 18:26:13,605 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 92 transitions, 274 flow [2022-12-13 18:26:13,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 18:26:13,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 18:26:13,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 944 transitions. [2022-12-13 18:26:13,620 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.514721919302072 [2022-12-13 18:26:13,621 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 944 transitions. [2022-12-13 18:26:13,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 944 transitions. [2022-12-13 18:26:13,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:26:13,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 944 transitions. [2022-12-13 18:26:13,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 472.0) internal successors, (944), 2 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:13,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 917.0) internal successors, (2751), 3 states have internal predecessors, (2751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:13,639 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 917.0) internal successors, (2751), 3 states have internal predecessors, (2751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:13,641 INFO L175 Difference]: Start difference. First operand has 118 places, 115 transitions, 248 flow. Second operand 2 states and 944 transitions. [2022-12-13 18:26:13,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 92 transitions, 274 flow [2022-12-13 18:26:13,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 92 transitions, 262 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-13 18:26:13,648 INFO L231 Difference]: Finished difference. Result has 94 places, 91 transitions, 187 flow [2022-12-13 18:26:13,649 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=917, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=187, PETRI_PLACES=94, PETRI_TRANSITIONS=91} [2022-12-13 18:26:13,652 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -24 predicate places. [2022-12-13 18:26:13,652 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 91 transitions, 187 flow [2022-12-13 18:26:13,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 444.5) internal successors, (889), 2 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:13,653 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:26:13,653 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 18:26:13,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:26:13,653 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-12-13 18:26:13,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:13,654 INFO L85 PathProgramCache]: Analyzing trace with hash 54023928, now seen corresponding path program 1 times [2022-12-13 18:26:13,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:13,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171328686] [2022-12-13 18:26:13,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:13,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:13,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:13,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:13,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171328686] [2022-12-13 18:26:13,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171328686] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:13,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:13,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:26:13,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165931842] [2022-12-13 18:26:13,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:13,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:26:13,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:13,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:26:13,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:26:13,755 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 917 [2022-12-13 18:26:13,757 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 91 transitions, 187 flow. Second operand has 3 states, 3 states have (on average 438.3333333333333) internal successors, (1315), 3 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:13,757 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:26:13,757 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 917 [2022-12-13 18:26:13,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:26:14,496 INFO L130 PetriNetUnfolder]: 4681/9919 cut-off events. [2022-12-13 18:26:14,496 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 18:26:14,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16655 conditions, 9919 events. 4681/9919 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 87449 event pairs, 1335 based on Foata normal form. 0/8496 useless extension candidates. Maximal degree in co-relation 16652. Up to 6582 conditions per place. [2022-12-13 18:26:14,557 INFO L137 encePairwiseOnDemand]: 913/917 looper letters, 52 selfloop transitions, 2 changer transitions 0/104 dead transitions. [2022-12-13 18:26:14,557 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 104 transitions, 323 flow [2022-12-13 18:26:14,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:26:14,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:26:14,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1367 transitions. [2022-12-13 18:26:14,562 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49691021446746636 [2022-12-13 18:26:14,562 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1367 transitions. [2022-12-13 18:26:14,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1367 transitions. [2022-12-13 18:26:14,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:26:14,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1367 transitions. [2022-12-13 18:26:14,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 455.6666666666667) internal successors, (1367), 3 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:14,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:14,573 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:14,574 INFO L175 Difference]: Start difference. First operand has 94 places, 91 transitions, 187 flow. Second operand 3 states and 1367 transitions. [2022-12-13 18:26:14,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 104 transitions, 323 flow [2022-12-13 18:26:14,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 104 transitions, 323 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 18:26:14,576 INFO L231 Difference]: Finished difference. Result has 94 places, 91 transitions, 197 flow [2022-12-13 18:26:14,576 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=917, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=197, PETRI_PLACES=94, PETRI_TRANSITIONS=91} [2022-12-13 18:26:14,577 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -24 predicate places. [2022-12-13 18:26:14,577 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 91 transitions, 197 flow [2022-12-13 18:26:14,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 438.3333333333333) internal successors, (1315), 3 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:14,578 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:26:14,578 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 18:26:14,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 18:26:14,579 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-12-13 18:26:14,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:14,579 INFO L85 PathProgramCache]: Analyzing trace with hash 396043594, now seen corresponding path program 1 times [2022-12-13 18:26:14,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:14,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180492808] [2022-12-13 18:26:14,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:14,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:14,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:14,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:14,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180492808] [2022-12-13 18:26:14,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180492808] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:14,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:14,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:26:14,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271990502] [2022-12-13 18:26:14,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:14,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:26:14,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:14,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:26:14,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:26:14,644 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 917 [2022-12-13 18:26:14,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 91 transitions, 197 flow. Second operand has 3 states, 3 states have (on average 439.0) internal successors, (1317), 3 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:14,646 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:26:14,646 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 917 [2022-12-13 18:26:14,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:26:15,331 INFO L130 PetriNetUnfolder]: 4546/9795 cut-off events. [2022-12-13 18:26:15,332 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 18:26:15,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16406 conditions, 9795 events. 4546/9795 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 88209 event pairs, 1176 based on Foata normal form. 0/8598 useless extension candidates. Maximal degree in co-relation 16402. Up to 6399 conditions per place. [2022-12-13 18:26:15,367 INFO L137 encePairwiseOnDemand]: 913/917 looper letters, 52 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2022-12-13 18:26:15,367 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 105 transitions, 335 flow [2022-12-13 18:26:15,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:26:15,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:26:15,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1367 transitions. [2022-12-13 18:26:15,373 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49691021446746636 [2022-12-13 18:26:15,373 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1367 transitions. [2022-12-13 18:26:15,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1367 transitions. [2022-12-13 18:26:15,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:26:15,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1367 transitions. [2022-12-13 18:26:15,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 455.6666666666667) internal successors, (1367), 3 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:15,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:15,379 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:15,380 INFO L175 Difference]: Start difference. First operand has 94 places, 91 transitions, 197 flow. Second operand 3 states and 1367 transitions. [2022-12-13 18:26:15,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 105 transitions, 335 flow [2022-12-13 18:26:15,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 105 transitions, 335 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 18:26:15,381 INFO L231 Difference]: Finished difference. Result has 95 places, 91 transitions, 207 flow [2022-12-13 18:26:15,381 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=917, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=207, PETRI_PLACES=95, PETRI_TRANSITIONS=91} [2022-12-13 18:26:15,382 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -23 predicate places. [2022-12-13 18:26:15,382 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 91 transitions, 207 flow [2022-12-13 18:26:15,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 439.0) internal successors, (1317), 3 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:15,383 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:26:15,383 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 18:26:15,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 18:26:15,383 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-12-13 18:26:15,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:15,383 INFO L85 PathProgramCache]: Analyzing trace with hash 377420378, now seen corresponding path program 1 times [2022-12-13 18:26:15,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:15,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799478453] [2022-12-13 18:26:15,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:15,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:15,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:15,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:15,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799478453] [2022-12-13 18:26:15,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799478453] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:15,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:15,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:26:15,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845546511] [2022-12-13 18:26:15,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:15,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:26:15,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:15,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:26:15,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:26:15,428 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 917 [2022-12-13 18:26:15,430 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 91 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 438.3333333333333) internal successors, (1315), 3 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:15,430 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:26:15,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 917 [2022-12-13 18:26:15,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:26:16,207 INFO L130 PetriNetUnfolder]: 4280/9638 cut-off events. [2022-12-13 18:26:16,208 INFO L131 PetriNetUnfolder]: For 209/209 co-relation queries the response was YES. [2022-12-13 18:26:16,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16112 conditions, 9638 events. 4280/9638 cut-off events. For 209/209 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 88012 event pairs, 2587 based on Foata normal form. 0/8139 useless extension candidates. Maximal degree in co-relation 16107. Up to 6100 conditions per place. [2022-12-13 18:26:16,240 INFO L137 encePairwiseOnDemand]: 913/917 looper letters, 51 selfloop transitions, 2 changer transitions 0/104 dead transitions. [2022-12-13 18:26:16,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 104 transitions, 341 flow [2022-12-13 18:26:16,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:26:16,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:26:16,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1365 transitions. [2022-12-13 18:26:16,242 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4961832061068702 [2022-12-13 18:26:16,243 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1365 transitions. [2022-12-13 18:26:16,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1365 transitions. [2022-12-13 18:26:16,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:26:16,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1365 transitions. [2022-12-13 18:26:16,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 455.0) internal successors, (1365), 3 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:16,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:16,249 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:16,249 INFO L175 Difference]: Start difference. First operand has 95 places, 91 transitions, 207 flow. Second operand 3 states and 1365 transitions. [2022-12-13 18:26:16,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 104 transitions, 341 flow [2022-12-13 18:26:16,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 104 transitions, 341 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 18:26:16,251 INFO L231 Difference]: Finished difference. Result has 96 places, 91 transitions, 217 flow [2022-12-13 18:26:16,251 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=917, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=217, PETRI_PLACES=96, PETRI_TRANSITIONS=91} [2022-12-13 18:26:16,252 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -22 predicate places. [2022-12-13 18:26:16,252 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 91 transitions, 217 flow [2022-12-13 18:26:16,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 438.3333333333333) internal successors, (1315), 3 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:16,253 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:26:16,253 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:26:16,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 18:26:16,253 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-12-13 18:26:16,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:16,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1654159412, now seen corresponding path program 1 times [2022-12-13 18:26:16,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:16,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517684413] [2022-12-13 18:26:16,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:16,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:16,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:16,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:16,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517684413] [2022-12-13 18:26:16,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517684413] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:16,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:16,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:26:16,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664957068] [2022-12-13 18:26:16,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:16,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:26:16,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:16,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:26:16,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:26:16,296 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 917 [2022-12-13 18:26:16,298 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 91 transitions, 217 flow. Second operand has 3 states, 3 states have (on average 439.0) internal successors, (1317), 3 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:16,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:26:16,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 917 [2022-12-13 18:26:16,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:26:16,956 INFO L130 PetriNetUnfolder]: 4525/9889 cut-off events. [2022-12-13 18:26:16,957 INFO L131 PetriNetUnfolder]: For 189/189 co-relation queries the response was YES. [2022-12-13 18:26:16,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16771 conditions, 9889 events. 4525/9889 cut-off events. For 189/189 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 90213 event pairs, 965 based on Foata normal form. 0/8637 useless extension candidates. Maximal degree in co-relation 16765. Up to 6332 conditions per place. [2022-12-13 18:26:16,986 INFO L137 encePairwiseOnDemand]: 913/917 looper letters, 53 selfloop transitions, 2 changer transitions 0/106 dead transitions. [2022-12-13 18:26:16,986 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 106 transitions, 361 flow [2022-12-13 18:26:16,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:26:16,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:26:16,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1367 transitions. [2022-12-13 18:26:16,989 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49691021446746636 [2022-12-13 18:26:16,989 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1367 transitions. [2022-12-13 18:26:16,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1367 transitions. [2022-12-13 18:26:16,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:26:16,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1367 transitions. [2022-12-13 18:26:16,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 455.6666666666667) internal successors, (1367), 3 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:16,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:16,995 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:16,995 INFO L175 Difference]: Start difference. First operand has 96 places, 91 transitions, 217 flow. Second operand 3 states and 1367 transitions. [2022-12-13 18:26:16,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 106 transitions, 361 flow [2022-12-13 18:26:16,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 106 transitions, 361 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 18:26:16,996 INFO L231 Difference]: Finished difference. Result has 97 places, 91 transitions, 227 flow [2022-12-13 18:26:16,996 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=917, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=227, PETRI_PLACES=97, PETRI_TRANSITIONS=91} [2022-12-13 18:26:16,997 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -21 predicate places. [2022-12-13 18:26:16,997 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 91 transitions, 227 flow [2022-12-13 18:26:16,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 439.0) internal successors, (1317), 3 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:16,998 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:26:16,998 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:26:16,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 18:26:16,998 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-12-13 18:26:16,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:16,998 INFO L85 PathProgramCache]: Analyzing trace with hash -508672422, now seen corresponding path program 1 times [2022-12-13 18:26:16,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:16,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468305636] [2022-12-13 18:26:16,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:16,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:17,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:17,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:17,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:17,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468305636] [2022-12-13 18:26:17,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468305636] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:17,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:17,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:26:17,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103992918] [2022-12-13 18:26:17,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:17,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:26:17,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:17,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:26:17,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:26:17,042 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 917 [2022-12-13 18:26:17,045 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 91 transitions, 227 flow. Second operand has 3 states, 3 states have (on average 439.3333333333333) internal successors, (1318), 3 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:17,045 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:26:17,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 917 [2022-12-13 18:26:17,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:26:17,916 INFO L130 PetriNetUnfolder]: 4761/10165 cut-off events. [2022-12-13 18:26:17,916 INFO L131 PetriNetUnfolder]: For 293/293 co-relation queries the response was YES. [2022-12-13 18:26:17,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17493 conditions, 10165 events. 4761/10165 cut-off events. For 293/293 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 90683 event pairs, 1171 based on Foata normal form. 0/8679 useless extension candidates. Maximal degree in co-relation 17486. Up to 6469 conditions per place. [2022-12-13 18:26:17,966 INFO L137 encePairwiseOnDemand]: 913/917 looper letters, 54 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2022-12-13 18:26:17,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 107 transitions, 378 flow [2022-12-13 18:26:17,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:26:17,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:26:17,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1367 transitions. [2022-12-13 18:26:17,972 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49691021446746636 [2022-12-13 18:26:17,972 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1367 transitions. [2022-12-13 18:26:17,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1367 transitions. [2022-12-13 18:26:17,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:26:17,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1367 transitions. [2022-12-13 18:26:17,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 455.6666666666667) internal successors, (1367), 3 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:17,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:17,979 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:17,979 INFO L175 Difference]: Start difference. First operand has 97 places, 91 transitions, 227 flow. Second operand 3 states and 1367 transitions. [2022-12-13 18:26:17,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 107 transitions, 378 flow [2022-12-13 18:26:17,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 107 transitions, 378 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 18:26:17,982 INFO L231 Difference]: Finished difference. Result has 98 places, 91 transitions, 237 flow [2022-12-13 18:26:17,982 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=917, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=237, PETRI_PLACES=98, PETRI_TRANSITIONS=91} [2022-12-13 18:26:17,982 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -20 predicate places. [2022-12-13 18:26:17,982 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 91 transitions, 237 flow [2022-12-13 18:26:17,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 439.3333333333333) internal successors, (1318), 3 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:17,983 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:26:17,983 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:26:17,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 18:26:17,983 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-12-13 18:26:17,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:17,984 INFO L85 PathProgramCache]: Analyzing trace with hash 792111388, now seen corresponding path program 1 times [2022-12-13 18:26:17,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:17,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925818956] [2022-12-13 18:26:17,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:17,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:18,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:18,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:18,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925818956] [2022-12-13 18:26:18,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925818956] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:18,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:18,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:26:18,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263001063] [2022-12-13 18:26:18,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:18,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:26:18,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:18,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:26:18,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:26:18,030 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 917 [2022-12-13 18:26:18,033 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 91 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 439.6666666666667) internal successors, (1319), 3 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:18,033 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:26:18,033 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 917 [2022-12-13 18:26:18,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:26:18,778 INFO L130 PetriNetUnfolder]: 4761/10285 cut-off events. [2022-12-13 18:26:18,778 INFO L131 PetriNetUnfolder]: For 695/695 co-relation queries the response was YES. [2022-12-13 18:26:18,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18182 conditions, 10285 events. 4761/10285 cut-off events. For 695/695 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 91719 event pairs, 1144 based on Foata normal form. 0/8749 useless extension candidates. Maximal degree in co-relation 18174. Up to 6044 conditions per place. [2022-12-13 18:26:18,831 INFO L137 encePairwiseOnDemand]: 913/917 looper letters, 58 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2022-12-13 18:26:18,832 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 109 transitions, 404 flow [2022-12-13 18:26:18,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:26:18,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:26:18,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1369 transitions. [2022-12-13 18:26:18,835 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4976372228280625 [2022-12-13 18:26:18,835 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1369 transitions. [2022-12-13 18:26:18,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1369 transitions. [2022-12-13 18:26:18,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:26:18,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1369 transitions. [2022-12-13 18:26:18,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 456.3333333333333) internal successors, (1369), 3 states have internal predecessors, (1369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:18,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:18,843 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:18,843 INFO L175 Difference]: Start difference. First operand has 98 places, 91 transitions, 237 flow. Second operand 3 states and 1369 transitions. [2022-12-13 18:26:18,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 109 transitions, 404 flow [2022-12-13 18:26:18,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 109 transitions, 404 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 18:26:18,845 INFO L231 Difference]: Finished difference. Result has 99 places, 91 transitions, 247 flow [2022-12-13 18:26:18,845 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=917, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=247, PETRI_PLACES=99, PETRI_TRANSITIONS=91} [2022-12-13 18:26:18,846 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -19 predicate places. [2022-12-13 18:26:18,846 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 91 transitions, 247 flow [2022-12-13 18:26:18,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 439.6666666666667) internal successors, (1319), 3 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:18,846 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:26:18,846 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:26:18,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 18:26:18,847 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-12-13 18:26:18,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:18,847 INFO L85 PathProgramCache]: Analyzing trace with hash 195509238, now seen corresponding path program 1 times [2022-12-13 18:26:18,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:18,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523164802] [2022-12-13 18:26:18,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:18,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:18,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:18,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:18,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523164802] [2022-12-13 18:26:18,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523164802] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:18,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:18,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:26:18,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579214664] [2022-12-13 18:26:18,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:18,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:26:18,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:18,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:26:18,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:26:18,893 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 917 [2022-12-13 18:26:18,895 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 91 transitions, 247 flow. Second operand has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:18,895 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:26:18,895 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 917 [2022-12-13 18:26:18,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:26:19,756 INFO L130 PetriNetUnfolder]: 6517/12121 cut-off events. [2022-12-13 18:26:19,756 INFO L131 PetriNetUnfolder]: For 814/814 co-relation queries the response was YES. [2022-12-13 18:26:19,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23020 conditions, 12121 events. 6517/12121 cut-off events. For 814/814 co-relation queries the response was YES. Maximal size of possible extension queue 452. Compared 96581 event pairs, 1683 based on Foata normal form. 0/11036 useless extension candidates. Maximal degree in co-relation 23011. Up to 8241 conditions per place. [2022-12-13 18:26:19,807 INFO L137 encePairwiseOnDemand]: 911/917 looper letters, 65 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2022-12-13 18:26:19,807 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 111 transitions, 438 flow [2022-12-13 18:26:19,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:26:19,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:26:19,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1358 transitions. [2022-12-13 18:26:19,810 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49363867684478374 [2022-12-13 18:26:19,810 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1358 transitions. [2022-12-13 18:26:19,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1358 transitions. [2022-12-13 18:26:19,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:26:19,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1358 transitions. [2022-12-13 18:26:19,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 452.6666666666667) internal successors, (1358), 3 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:19,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:19,815 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:19,815 INFO L175 Difference]: Start difference. First operand has 99 places, 91 transitions, 247 flow. Second operand 3 states and 1358 transitions. [2022-12-13 18:26:19,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 111 transitions, 438 flow [2022-12-13 18:26:19,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 111 transitions, 438 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 18:26:19,817 INFO L231 Difference]: Finished difference. Result has 98 places, 89 transitions, 253 flow [2022-12-13 18:26:19,817 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=917, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=253, PETRI_PLACES=98, PETRI_TRANSITIONS=89} [2022-12-13 18:26:19,818 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -20 predicate places. [2022-12-13 18:26:19,818 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 89 transitions, 253 flow [2022-12-13 18:26:19,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:19,818 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:26:19,819 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:26:19,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 18:26:19,819 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-12-13 18:26:19,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:19,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1010424996, now seen corresponding path program 1 times [2022-12-13 18:26:19,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:19,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084697383] [2022-12-13 18:26:19,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:19,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:19,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:19,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:19,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084697383] [2022-12-13 18:26:19,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084697383] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:19,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:19,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:26:19,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431776051] [2022-12-13 18:26:19,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:19,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:26:19,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:19,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:26:19,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:26:19,862 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 917 [2022-12-13 18:26:19,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 89 transitions, 253 flow. Second operand has 3 states, 3 states have (on average 434.0) internal successors, (1302), 3 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:19,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:26:19,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 917 [2022-12-13 18:26:19,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:26:20,675 INFO L130 PetriNetUnfolder]: 6414/11544 cut-off events. [2022-12-13 18:26:20,675 INFO L131 PetriNetUnfolder]: For 1212/1212 co-relation queries the response was YES. [2022-12-13 18:26:20,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23086 conditions, 11544 events. 6414/11544 cut-off events. For 1212/1212 co-relation queries the response was YES. Maximal size of possible extension queue 473. Compared 91212 event pairs, 1518 based on Foata normal form. 0/10783 useless extension candidates. Maximal degree in co-relation 23076. Up to 7577 conditions per place. [2022-12-13 18:26:20,723 INFO L137 encePairwiseOnDemand]: 911/917 looper letters, 69 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2022-12-13 18:26:20,723 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 111 transitions, 463 flow [2022-12-13 18:26:20,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:26:20,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:26:20,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1359 transitions. [2022-12-13 18:26:20,726 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4940021810250818 [2022-12-13 18:26:20,726 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1359 transitions. [2022-12-13 18:26:20,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1359 transitions. [2022-12-13 18:26:20,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:26:20,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1359 transitions. [2022-12-13 18:26:20,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 453.0) internal successors, (1359), 3 states have internal predecessors, (1359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:20,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:20,732 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:20,732 INFO L175 Difference]: Start difference. First operand has 98 places, 89 transitions, 253 flow. Second operand 3 states and 1359 transitions. [2022-12-13 18:26:20,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 111 transitions, 463 flow [2022-12-13 18:26:20,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 111 transitions, 463 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 18:26:20,734 INFO L231 Difference]: Finished difference. Result has 97 places, 87 transitions, 259 flow [2022-12-13 18:26:20,734 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=917, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=259, PETRI_PLACES=97, PETRI_TRANSITIONS=87} [2022-12-13 18:26:20,734 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -21 predicate places. [2022-12-13 18:26:20,735 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 87 transitions, 259 flow [2022-12-13 18:26:20,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 434.0) internal successors, (1302), 3 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:20,735 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:26:20,735 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:26:20,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 18:26:20,735 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-12-13 18:26:20,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:20,736 INFO L85 PathProgramCache]: Analyzing trace with hash 441167452, now seen corresponding path program 1 times [2022-12-13 18:26:20,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:20,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607980268] [2022-12-13 18:26:20,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:20,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:20,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:20,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:20,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607980268] [2022-12-13 18:26:20,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607980268] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:20,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:20,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:26:20,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233706019] [2022-12-13 18:26:20,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:20,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:26:20,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:20,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:26:20,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:26:20,771 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 438 out of 917 [2022-12-13 18:26:20,772 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 87 transitions, 259 flow. Second operand has 3 states, 3 states have (on average 440.6666666666667) internal successors, (1322), 3 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:20,772 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:26:20,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 438 of 917 [2022-12-13 18:26:20,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:26:21,556 INFO L130 PetriNetUnfolder]: 4204/8540 cut-off events. [2022-12-13 18:26:21,556 INFO L131 PetriNetUnfolder]: For 1017/1017 co-relation queries the response was YES. [2022-12-13 18:26:21,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16851 conditions, 8540 events. 4204/8540 cut-off events. For 1017/1017 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 69850 event pairs, 2804 based on Foata normal form. 0/7649 useless extension candidates. Maximal degree in co-relation 16840. Up to 5246 conditions per place. [2022-12-13 18:26:21,593 INFO L137 encePairwiseOnDemand]: 913/917 looper letters, 61 selfloop transitions, 3 changer transitions 0/109 dead transitions. [2022-12-13 18:26:21,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 109 transitions, 447 flow [2022-12-13 18:26:21,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:26:21,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:26:21,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1371 transitions. [2022-12-13 18:26:21,596 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4983642311886587 [2022-12-13 18:26:21,596 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1371 transitions. [2022-12-13 18:26:21,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1371 transitions. [2022-12-13 18:26:21,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:26:21,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1371 transitions. [2022-12-13 18:26:21,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 457.0) internal successors, (1371), 3 states have internal predecessors, (1371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:21,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:21,602 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:21,602 INFO L175 Difference]: Start difference. First operand has 97 places, 87 transitions, 259 flow. Second operand 3 states and 1371 transitions. [2022-12-13 18:26:21,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 109 transitions, 447 flow [2022-12-13 18:26:21,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 109 transitions, 447 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 18:26:21,605 INFO L231 Difference]: Finished difference. Result has 98 places, 86 transitions, 263 flow [2022-12-13 18:26:21,605 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=917, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=263, PETRI_PLACES=98, PETRI_TRANSITIONS=86} [2022-12-13 18:26:21,605 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -20 predicate places. [2022-12-13 18:26:21,606 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 86 transitions, 263 flow [2022-12-13 18:26:21,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 440.6666666666667) internal successors, (1322), 3 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:21,606 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:26:21,606 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:26:21,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 18:26:21,606 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-12-13 18:26:21,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:21,607 INFO L85 PathProgramCache]: Analyzing trace with hash 355850534, now seen corresponding path program 1 times [2022-12-13 18:26:21,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:21,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521462270] [2022-12-13 18:26:21,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:21,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:21,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:21,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:21,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:21,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521462270] [2022-12-13 18:26:21,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521462270] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:21,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:21,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:26:21,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668936394] [2022-12-13 18:26:21,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:21,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:26:21,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:21,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:26:21,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:26:21,649 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 917 [2022-12-13 18:26:21,651 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 86 transitions, 263 flow. Second operand has 3 states, 3 states have (on average 434.3333333333333) internal successors, (1303), 3 states have internal predecessors, (1303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:21,651 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:26:21,651 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 917 [2022-12-13 18:26:21,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:26:22,693 INFO L130 PetriNetUnfolder]: 6995/11647 cut-off events. [2022-12-13 18:26:22,693 INFO L131 PetriNetUnfolder]: For 2528/2528 co-relation queries the response was YES. [2022-12-13 18:26:22,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25556 conditions, 11647 events. 6995/11647 cut-off events. For 2528/2528 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 81361 event pairs, 1823 based on Foata normal form. 0/10874 useless extension candidates. Maximal degree in co-relation 25544. Up to 7835 conditions per place. [2022-12-13 18:26:22,748 INFO L137 encePairwiseOnDemand]: 911/917 looper letters, 69 selfloop transitions, 2 changer transitions 2/109 dead transitions. [2022-12-13 18:26:22,749 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 109 transitions, 487 flow [2022-12-13 18:26:22,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:26:22,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:26:22,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1360 transitions. [2022-12-13 18:26:22,751 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4943656852053799 [2022-12-13 18:26:22,751 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1360 transitions. [2022-12-13 18:26:22,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1360 transitions. [2022-12-13 18:26:22,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:26:22,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1360 transitions. [2022-12-13 18:26:22,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 453.3333333333333) internal successors, (1360), 3 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:22,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:22,756 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:22,756 INFO L175 Difference]: Start difference. First operand has 98 places, 86 transitions, 263 flow. Second operand 3 states and 1360 transitions. [2022-12-13 18:26:22,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 109 transitions, 487 flow [2022-12-13 18:26:22,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 109 transitions, 475 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 18:26:22,781 INFO L231 Difference]: Finished difference. Result has 95 places, 82 transitions, 258 flow [2022-12-13 18:26:22,781 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=917, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=95, PETRI_TRANSITIONS=82} [2022-12-13 18:26:22,782 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -23 predicate places. [2022-12-13 18:26:22,782 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 82 transitions, 258 flow [2022-12-13 18:26:22,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 434.3333333333333) internal successors, (1303), 3 states have internal predecessors, (1303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:22,782 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:26:22,782 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:26:22,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 18:26:22,782 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-12-13 18:26:22,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:22,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1853521040, now seen corresponding path program 1 times [2022-12-13 18:26:22,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:22,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200150919] [2022-12-13 18:26:22,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:22,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:22,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:22,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:22,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200150919] [2022-12-13 18:26:22,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200150919] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:22,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:22,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:26:22,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929439696] [2022-12-13 18:26:22,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:22,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:26:22,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:22,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:26:22,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:26:22,817 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 438 out of 917 [2022-12-13 18:26:22,818 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 82 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:22,818 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:26:22,818 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 438 of 917 [2022-12-13 18:26:22,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:26:23,491 INFO L130 PetriNetUnfolder]: 4343/8383 cut-off events. [2022-12-13 18:26:23,491 INFO L131 PetriNetUnfolder]: For 1012/1012 co-relation queries the response was YES. [2022-12-13 18:26:23,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17376 conditions, 8383 events. 4343/8383 cut-off events. For 1012/1012 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 64755 event pairs, 2820 based on Foata normal form. 0/7718 useless extension candidates. Maximal degree in co-relation 17364. Up to 5392 conditions per place. [2022-12-13 18:26:23,513 INFO L137 encePairwiseOnDemand]: 913/917 looper letters, 0 selfloop transitions, 0 changer transitions 104/104 dead transitions. [2022-12-13 18:26:23,513 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 104 transitions, 442 flow [2022-12-13 18:26:23,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:26:23,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:26:23,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1369 transitions. [2022-12-13 18:26:23,516 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4976372228280625 [2022-12-13 18:26:23,516 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1369 transitions. [2022-12-13 18:26:23,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1369 transitions. [2022-12-13 18:26:23,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:26:23,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1369 transitions. [2022-12-13 18:26:23,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 456.3333333333333) internal successors, (1369), 3 states have internal predecessors, (1369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:23,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:23,520 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 917.0) internal successors, (3668), 4 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:23,520 INFO L175 Difference]: Start difference. First operand has 95 places, 82 transitions, 258 flow. Second operand 3 states and 1369 transitions. [2022-12-13 18:26:23,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 104 transitions, 442 flow [2022-12-13 18:26:23,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 104 transitions, 442 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 18:26:23,523 INFO L231 Difference]: Finished difference. Result has 94 places, 0 transitions, 0 flow [2022-12-13 18:26:23,523 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=917, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=94, PETRI_TRANSITIONS=0} [2022-12-13 18:26:23,523 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -24 predicate places. [2022-12-13 18:26:23,523 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 0 transitions, 0 flow [2022-12-13 18:26:23,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:26:23,525 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (71 of 72 remaining) [2022-12-13 18:26:23,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (70 of 72 remaining) [2022-12-13 18:26:23,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (69 of 72 remaining) [2022-12-13 18:26:23,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (68 of 72 remaining) [2022-12-13 18:26:23,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (67 of 72 remaining) [2022-12-13 18:26:23,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (66 of 72 remaining) [2022-12-13 18:26:23,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (65 of 72 remaining) [2022-12-13 18:26:23,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (64 of 72 remaining) [2022-12-13 18:26:23,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (63 of 72 remaining) [2022-12-13 18:26:23,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (62 of 72 remaining) [2022-12-13 18:26:23,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (61 of 72 remaining) [2022-12-13 18:26:23,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (60 of 72 remaining) [2022-12-13 18:26:23,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (59 of 72 remaining) [2022-12-13 18:26:23,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (58 of 72 remaining) [2022-12-13 18:26:23,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (57 of 72 remaining) [2022-12-13 18:26:23,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (56 of 72 remaining) [2022-12-13 18:26:23,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (55 of 72 remaining) [2022-12-13 18:26:23,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (54 of 72 remaining) [2022-12-13 18:26:23,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (53 of 72 remaining) [2022-12-13 18:26:23,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (52 of 72 remaining) [2022-12-13 18:26:23,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (51 of 72 remaining) [2022-12-13 18:26:23,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (50 of 72 remaining) [2022-12-13 18:26:23,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (49 of 72 remaining) [2022-12-13 18:26:23,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (48 of 72 remaining) [2022-12-13 18:26:23,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (47 of 72 remaining) [2022-12-13 18:26:23,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (46 of 72 remaining) [2022-12-13 18:26:23,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (45 of 72 remaining) [2022-12-13 18:26:23,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 72 remaining) [2022-12-13 18:26:23,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 72 remaining) [2022-12-13 18:26:23,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 72 remaining) [2022-12-13 18:26:23,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 72 remaining) [2022-12-13 18:26:23,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (40 of 72 remaining) [2022-12-13 18:26:23,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (39 of 72 remaining) [2022-12-13 18:26:23,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (38 of 72 remaining) [2022-12-13 18:26:23,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (37 of 72 remaining) [2022-12-13 18:26:23,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (36 of 72 remaining) [2022-12-13 18:26:23,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (35 of 72 remaining) [2022-12-13 18:26:23,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (34 of 72 remaining) [2022-12-13 18:26:23,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (33 of 72 remaining) [2022-12-13 18:26:23,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (32 of 72 remaining) [2022-12-13 18:26:23,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (31 of 72 remaining) [2022-12-13 18:26:23,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (30 of 72 remaining) [2022-12-13 18:26:23,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 72 remaining) [2022-12-13 18:26:23,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 72 remaining) [2022-12-13 18:26:23,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 72 remaining) [2022-12-13 18:26:23,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (26 of 72 remaining) [2022-12-13 18:26:23,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (25 of 72 remaining) [2022-12-13 18:26:23,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (24 of 72 remaining) [2022-12-13 18:26:23,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (23 of 72 remaining) [2022-12-13 18:26:23,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (22 of 72 remaining) [2022-12-13 18:26:23,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (21 of 72 remaining) [2022-12-13 18:26:23,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (20 of 72 remaining) [2022-12-13 18:26:23,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (19 of 72 remaining) [2022-12-13 18:26:23,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (18 of 72 remaining) [2022-12-13 18:26:23,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (17 of 72 remaining) [2022-12-13 18:26:23,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (16 of 72 remaining) [2022-12-13 18:26:23,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (15 of 72 remaining) [2022-12-13 18:26:23,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (14 of 72 remaining) [2022-12-13 18:26:23,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (13 of 72 remaining) [2022-12-13 18:26:23,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (12 of 72 remaining) [2022-12-13 18:26:23,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (11 of 72 remaining) [2022-12-13 18:26:23,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (10 of 72 remaining) [2022-12-13 18:26:23,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (9 of 72 remaining) [2022-12-13 18:26:23,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (8 of 72 remaining) [2022-12-13 18:26:23,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (7 of 72 remaining) [2022-12-13 18:26:23,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (6 of 72 remaining) [2022-12-13 18:26:23,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (5 of 72 remaining) [2022-12-13 18:26:23,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (4 of 72 remaining) [2022-12-13 18:26:23,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (3 of 72 remaining) [2022-12-13 18:26:23,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (2 of 72 remaining) [2022-12-13 18:26:23,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (1 of 72 remaining) [2022-12-13 18:26:23,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (0 of 72 remaining) [2022-12-13 18:26:23,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 18:26:23,534 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:26:23,538 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 18:26:23,538 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:26:23,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:26:23 BasicIcfg [2022-12-13 18:26:23,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:26:23,541 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:26:23,541 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:26:23,541 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:26:23,541 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:26:04" (3/4) ... [2022-12-13 18:26:23,543 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 18:26:23,547 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 18:26:23,547 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 18:26:23,547 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-12-13 18:26:23,550 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-12-13 18:26:23,551 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 18:26:23,551 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 18:26:23,551 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 18:26:23,577 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1fb53f5-70a5-47c0-ac16-76c1cabb21eb/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 18:26:23,577 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:26:23,578 INFO L158 Benchmark]: Toolchain (without parser) took 19516.79ms. Allocated memory was 140.5MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 105.1MB in the beginning and 1.0GB in the end (delta: -934.5MB). Peak memory consumption was 657.8MB. Max. memory is 16.1GB. [2022-12-13 18:26:23,578 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 140.5MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:26:23,578 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.48ms. Allocated memory is still 140.5MB. Free memory was 104.6MB in the beginning and 92.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 18:26:23,578 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.82ms. Allocated memory is still 140.5MB. Free memory was 92.5MB in the beginning and 89.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 18:26:23,579 INFO L158 Benchmark]: Boogie Preprocessor took 24.91ms. Allocated memory is still 140.5MB. Free memory was 89.4MB in the beginning and 87.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:26:23,579 INFO L158 Benchmark]: RCFGBuilder took 585.90ms. Allocated memory is still 140.5MB. Free memory was 87.3MB in the beginning and 57.9MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-13 18:26:23,579 INFO L158 Benchmark]: TraceAbstraction took 18643.42ms. Allocated memory was 140.5MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 57.3MB in the beginning and 1.0GB in the end (delta: -986.5MB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2022-12-13 18:26:23,579 INFO L158 Benchmark]: Witness Printer took 36.53ms. Allocated memory is still 1.7GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 18:26:23,581 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 140.5MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.48ms. Allocated memory is still 140.5MB. Free memory was 104.6MB in the beginning and 92.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.82ms. Allocated memory is still 140.5MB. Free memory was 92.5MB in the beginning and 89.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.91ms. Allocated memory is still 140.5MB. Free memory was 89.4MB in the beginning and 87.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 585.90ms. Allocated memory is still 140.5MB. Free memory was 87.3MB in the beginning and 57.9MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 18643.42ms. Allocated memory was 140.5MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 57.3MB in the beginning and 1.0GB in the end (delta: -986.5MB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * Witness Printer took 36.53ms. Allocated memory is still 1.7GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.5s, 431 PlacesBefore, 118 PlacesAfterwards, 437 TransitionsBefore, 115 TransitionsAfterwards, 65286 CoEnabledTransitionPairs, 8 FixpointIterations, 145 TrivialSequentialCompositions, 230 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 65 ConcurrentYvCompositions, 9 ChoiceCompositions, 453 TotalNumberOfCompositions, 162741 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 93907, independent: 92744, independent conditional: 0, independent unconditional: 92744, dependent: 1163, dependent conditional: 0, dependent unconditional: 1163, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 37949, independent: 37788, independent conditional: 0, independent unconditional: 37788, dependent: 161, dependent conditional: 0, dependent unconditional: 161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 93907, independent: 54956, independent conditional: 0, independent unconditional: 54956, dependent: 1002, dependent conditional: 0, dependent unconditional: 1002, unknown: 37949, unknown conditional: 0, unknown unconditional: 37949] , Statistics on independence cache: Total cache size (in pairs): 2517, Positive cache size: 2441, Positive conditional cache size: 0, Positive unconditional cache size: 2441, Negative cache size: 76, Negative conditional cache size: 0, Negative unconditional cache size: 76, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 717 locations, 72 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 18.5s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 555 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 377 mSDsluCounter, 107 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 88 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 958 IncrementalHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 88 mSolverCounterUnsat, 107 mSDtfsCounter, 958 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=263occurred in iteration=10, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 131 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 42 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 18:26:23,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1fb53f5-70a5-47c0-ac16-76c1cabb21eb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE