./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/array-eq-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff4f3cf-4207-4504-9bfd-c8346c79e5cd/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff4f3cf-4207-4504-9bfd-c8346c79e5cd/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_8ff4f3cf-4207-4504-9bfd-c8346c79e5cd/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff4f3cf-4207-4504-9bfd-c8346c79e5cd/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/array-eq-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff4f3cf-4207-4504-9bfd-c8346c79e5cd/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_8ff4f3cf-4207-4504-9bfd-c8346c79e5cd/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 1a172ae6dd3a5207c1a2580ce55cc24497fcf78586be62b7482a56f18aa6beb2 --- 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 18:17:00,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:17:00,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:17:00,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:17:00,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:17:00,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:17:00,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:17:00,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:17:00,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:17:00,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:17:00,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:17:00,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:17:00,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:17:00,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:17:00,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:17:00,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:17:00,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:17:00,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:17:00,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:17:00,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:17:00,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:17:00,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:17:00,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:17:00,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:17:00,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:17:00,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:17:00,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:17:00,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:17:00,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:17:00,945 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:17:00,945 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:17:00,946 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:17:00,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:17:00,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:17:00,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:17:00,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:17:00,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:17:00,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:17:00,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:17:00,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:17:00,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:17:00,950 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff4f3cf-4207-4504-9bfd-c8346c79e5cd/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 18:17:00,964 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:17:00,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:17:00,964 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:17:00,964 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:17:00,965 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:17:00,965 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:17:00,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:17:00,966 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:17:00,966 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:17:00,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:17:00,966 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:17:00,966 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:17:00,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:17:00,967 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:17:00,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:17:00,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:17:00,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:17:00,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:17:00,967 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 18:17:00,967 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:17:00,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:17:00,968 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:17:00,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:17:00,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:17:00,968 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:17:00,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:17:00,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:17:00,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:17:00,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:17:00,969 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:17:00,969 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:17:00,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:17:00,969 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:17:00,970 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:17:00,970 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:17:00,970 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:17:00,970 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:17:00,970 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_8ff4f3cf-4207-4504-9bfd-c8346c79e5cd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff4f3cf-4207-4504-9bfd-c8346c79e5cd/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a172ae6dd3a5207c1a2580ce55cc24497fcf78586be62b7482a56f18aa6beb2 [2022-12-13 18:17:01,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:17:01,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:17:01,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:17:01,198 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:17:01,198 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:17:01,199 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff4f3cf-4207-4504-9bfd-c8346c79e5cd/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/array-eq-symm.wvr.c [2022-12-13 18:17:03,762 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:17:03,903 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:17:03,904 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff4f3cf-4207-4504-9bfd-c8346c79e5cd/sv-benchmarks/c/weaver/array-eq-symm.wvr.c [2022-12-13 18:17:03,908 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff4f3cf-4207-4504-9bfd-c8346c79e5cd/bin/uautomizer-uyxdKDjOR8/data/eca624695/0296187b377549a8bb47086fb9138b48/FLAG8eb87567e [2022-12-13 18:17:04,311 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff4f3cf-4207-4504-9bfd-c8346c79e5cd/bin/uautomizer-uyxdKDjOR8/data/eca624695/0296187b377549a8bb47086fb9138b48 [2022-12-13 18:17:04,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:17:04,314 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:17:04,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:17:04,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:17:04,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:17:04,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:17:04" (1/1) ... [2022-12-13 18:17:04,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f5376ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:17:04, skipping insertion in model container [2022-12-13 18:17:04,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:17:04" (1/1) ... [2022-12-13 18:17:04,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:17:04,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:17:04,460 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_8ff4f3cf-4207-4504-9bfd-c8346c79e5cd/sv-benchmarks/c/weaver/array-eq-symm.wvr.c[2251,2264] [2022-12-13 18:17:04,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:17:04,471 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:17:04,489 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_8ff4f3cf-4207-4504-9bfd-c8346c79e5cd/sv-benchmarks/c/weaver/array-eq-symm.wvr.c[2251,2264] [2022-12-13 18:17:04,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:17:04,501 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:17:04,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:17:04 WrapperNode [2022-12-13 18:17:04,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:17:04,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:17:04,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:17:04,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:17:04,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:17:04" (1/1) ... [2022-12-13 18:17:04,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:17:04" (1/1) ... [2022-12-13 18:17:04,544 INFO L138 Inliner]: procedures = 23, calls = 29, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 160 [2022-12-13 18:17:04,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:17:04,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:17:04,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:17:04,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:17:04,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:17:04" (1/1) ... [2022-12-13 18:17:04,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:17:04" (1/1) ... [2022-12-13 18:17:04,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:17:04" (1/1) ... [2022-12-13 18:17:04,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:17:04" (1/1) ... [2022-12-13 18:17:04,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:17:04" (1/1) ... [2022-12-13 18:17:04,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:17:04" (1/1) ... [2022-12-13 18:17:04,580 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:17:04" (1/1) ... [2022-12-13 18:17:04,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:17:04" (1/1) ... [2022-12-13 18:17:04,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:17:04,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:17:04,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:17:04,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:17:04,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:17:04" (1/1) ... [2022-12-13 18:17:04,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:17:04,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff4f3cf-4207-4504-9bfd-c8346c79e5cd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:17:04,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff4f3cf-4207-4504-9bfd-c8346c79e5cd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:17:04,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff4f3cf-4207-4504-9bfd-c8346c79e5cd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:17:04,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:17:04,647 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 18:17:04,647 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 18:17:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 18:17:04,648 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 18:17:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:17:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:17:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 18:17:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 18:17:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:17:04,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:17:04,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 18:17:04,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:17:04,650 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 18:17:04,741 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:17:04,743 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:17:05,108 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:17:05,115 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:17:05,116 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 18:17:05,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:17:05 BoogieIcfgContainer [2022-12-13 18:17:05,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:17:05,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:17:05,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:17:05,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:17:05,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:17:04" (1/3) ... [2022-12-13 18:17:05,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510ac21e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:17:05, skipping insertion in model container [2022-12-13 18:17:05,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:17:04" (2/3) ... [2022-12-13 18:17:05,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510ac21e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:17:05, skipping insertion in model container [2022-12-13 18:17:05,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:17:05" (3/3) ... [2022-12-13 18:17:05,130 INFO L112 eAbstractionObserver]: Analyzing ICFG array-eq-symm.wvr.c [2022-12-13 18:17:05,136 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 18:17:05,144 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:17:05,144 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-12-13 18:17:05,144 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 18:17:05,226 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 18:17:05,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 323 places, 333 transitions, 682 flow [2022-12-13 18:17:05,368 INFO L130 PetriNetUnfolder]: 17/331 cut-off events. [2022-12-13 18:17:05,368 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 18:17:05,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 331 events. 17/331 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 590 event pairs, 0 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 223. Up to 3 conditions per place. [2022-12-13 18:17:05,375 INFO L82 GeneralOperation]: Start removeDead. Operand has 323 places, 333 transitions, 682 flow [2022-12-13 18:17:05,383 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 304 places, 313 transitions, 638 flow [2022-12-13 18:17:05,386 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 18:17:05,394 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 304 places, 313 transitions, 638 flow [2022-12-13 18:17:05,396 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 304 places, 313 transitions, 638 flow [2022-12-13 18:17:05,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 304 places, 313 transitions, 638 flow [2022-12-13 18:17:05,454 INFO L130 PetriNetUnfolder]: 16/313 cut-off events. [2022-12-13 18:17:05,454 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 18:17:05,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 313 events. 16/313 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 536 event pairs, 0 based on Foata normal form. 0/262 useless extension candidates. Maximal degree in co-relation 223. Up to 3 conditions per place. [2022-12-13 18:17:05,462 INFO L119 LiptonReduction]: Number of co-enabled transitions 13068 [2022-12-13 18:17:11,429 INFO L134 LiptonReduction]: Checked pairs total: 67600 [2022-12-13 18:17:11,429 INFO L136 LiptonReduction]: Total number of compositions: 304 [2022-12-13 18:17:11,442 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:17:11,448 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;@2b9eb1f5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:17:11,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2022-12-13 18:17:11,449 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 18:17:11,449 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 18:17:11,449 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:17:11,450 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 18:17:11,450 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-12-13 18:17:11,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:11,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1202, now seen corresponding path program 1 times [2022-12-13 18:17:11,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:11,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685080021] [2022-12-13 18:17:11,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:11,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:11,530 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 18:17:11,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:11,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685080021] [2022-12-13 18:17:11,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685080021] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:17:11,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:17:11,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 18:17:11,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896699106] [2022-12-13 18:17:11,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:17:11,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 18:17:11,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:11,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 18:17:11,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:17:11,557 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 637 [2022-12-13 18:17:11,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 102 transitions, 216 flow. Second operand has 2 states, 2 states have (on average 319.5) internal successors, (639), 2 states have internal predecessors, (639), 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 18:17:11,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:17:11,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 637 [2022-12-13 18:17:11,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:17:11,745 INFO L130 PetriNetUnfolder]: 467/1318 cut-off events. [2022-12-13 18:17:11,745 INFO L131 PetriNetUnfolder]: For 66/115 co-relation queries the response was YES. [2022-12-13 18:17:11,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2089 conditions, 1318 events. 467/1318 cut-off events. For 66/115 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 8793 event pairs, 327 based on Foata normal form. 84/1196 useless extension candidates. Maximal degree in co-relation 1894. Up to 734 conditions per place. [2022-12-13 18:17:11,755 INFO L137 encePairwiseOnDemand]: 613/637 looper letters, 36 selfloop transitions, 0 changer transitions 1/78 dead transitions. [2022-12-13 18:17:11,755 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 78 transitions, 242 flow [2022-12-13 18:17:11,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 18:17:11,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 18:17:11,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 699 transitions. [2022-12-13 18:17:11,768 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5486656200941915 [2022-12-13 18:17:11,769 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 699 transitions. [2022-12-13 18:17:11,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 699 transitions. [2022-12-13 18:17:11,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:17:11,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 699 transitions. [2022-12-13 18:17:11,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 349.5) internal successors, (699), 2 states have internal predecessors, (699), 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 18:17:11,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 637.0) internal successors, (1911), 3 states have internal predecessors, (1911), 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 18:17:11,785 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 637.0) internal successors, (1911), 3 states have internal predecessors, (1911), 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 18:17:11,787 INFO L175 Difference]: Start difference. First operand has 99 places, 102 transitions, 216 flow. Second operand 2 states and 699 transitions. [2022-12-13 18:17:11,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 78 transitions, 242 flow [2022-12-13 18:17:11,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 78 transitions, 234 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 18:17:11,793 INFO L231 Difference]: Finished difference. Result has 74 places, 77 transitions, 157 flow [2022-12-13 18:17:11,795 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=157, PETRI_PLACES=74, PETRI_TRANSITIONS=77} [2022-12-13 18:17:11,799 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -25 predicate places. [2022-12-13 18:17:11,799 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 77 transitions, 157 flow [2022-12-13 18:17:11,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 319.5) internal successors, (639), 2 states have internal predecessors, (639), 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 18:17:11,800 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:17:11,800 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 18:17:11,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:17:11,800 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-12-13 18:17:11,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:11,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1343023507, now seen corresponding path program 1 times [2022-12-13 18:17:11,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:11,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336195399] [2022-12-13 18:17:11,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:11,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:11,895 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 18:17:11,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:11,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336195399] [2022-12-13 18:17:11,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336195399] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:17:11,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:17:11,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:17:11,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965549554] [2022-12-13 18:17:11,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:17:11,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:17:11,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:11,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:17:11,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:17:11,913 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 637 [2022-12-13 18:17:11,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 77 transitions, 157 flow. Second operand has 3 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 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 18:17:11,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:17:11,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 637 [2022-12-13 18:17:11,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:17:12,069 INFO L130 PetriNetUnfolder]: 467/1298 cut-off events. [2022-12-13 18:17:12,069 INFO L131 PetriNetUnfolder]: For 11/60 co-relation queries the response was YES. [2022-12-13 18:17:12,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2044 conditions, 1298 events. 467/1298 cut-off events. For 11/60 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 8539 event pairs, 327 based on Foata normal form. 0/1092 useless extension candidates. Maximal degree in co-relation 2041. Up to 732 conditions per place. [2022-12-13 18:17:12,079 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 35 selfloop transitions, 1 changer transitions 0/75 dead transitions. [2022-12-13 18:17:12,079 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 75 transitions, 225 flow [2022-12-13 18:17:12,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:17:12,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:17:12,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 965 transitions. [2022-12-13 18:17:12,084 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5049712192569336 [2022-12-13 18:17:12,085 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 965 transitions. [2022-12-13 18:17:12,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 965 transitions. [2022-12-13 18:17:12,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:17:12,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 965 transitions. [2022-12-13 18:17:12,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.6666666666667) internal successors, (965), 3 states have internal predecessors, (965), 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 18:17:12,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 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 18:17:12,100 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 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 18:17:12,100 INFO L175 Difference]: Start difference. First operand has 74 places, 77 transitions, 157 flow. Second operand 3 states and 965 transitions. [2022-12-13 18:17:12,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 75 transitions, 225 flow [2022-12-13 18:17:12,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 75 transitions, 225 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 18:17:12,104 INFO L231 Difference]: Finished difference. Result has 73 places, 75 transitions, 155 flow [2022-12-13 18:17:12,104 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=155, PETRI_PLACES=73, PETRI_TRANSITIONS=75} [2022-12-13 18:17:12,105 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -26 predicate places. [2022-12-13 18:17:12,105 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 75 transitions, 155 flow [2022-12-13 18:17:12,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 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 18:17:12,106 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:17:12,106 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:17:12,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 18:17:12,107 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-12-13 18:17:12,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:12,107 INFO L85 PathProgramCache]: Analyzing trace with hash -2137057408, now seen corresponding path program 1 times [2022-12-13 18:17:12,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:12,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097137067] [2022-12-13 18:17:12,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:12,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:12,164 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 18:17:12,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:12,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097137067] [2022-12-13 18:17:12,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097137067] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:17:12,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:17:12,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:17:12,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152890100] [2022-12-13 18:17:12,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:17:12,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:17:12,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:12,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:17:12,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:17:12,179 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 637 [2022-12-13 18:17:12,181 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 75 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 311.6666666666667) internal successors, (935), 3 states have internal predecessors, (935), 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 18:17:12,181 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:17:12,181 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 637 [2022-12-13 18:17:12,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:17:12,313 INFO L130 PetriNetUnfolder]: 467/1284 cut-off events. [2022-12-13 18:17:12,313 INFO L131 PetriNetUnfolder]: For 11/60 co-relation queries the response was YES. [2022-12-13 18:17:12,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2032 conditions, 1284 events. 467/1284 cut-off events. For 11/60 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 8390 event pairs, 327 based on Foata normal form. 0/1078 useless extension candidates. Maximal degree in co-relation 2028. Up to 730 conditions per place. [2022-12-13 18:17:12,317 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 35 selfloop transitions, 1 changer transitions 0/73 dead transitions. [2022-12-13 18:17:12,317 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 73 transitions, 223 flow [2022-12-13 18:17:12,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:17:12,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:17:12,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 965 transitions. [2022-12-13 18:17:12,319 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5049712192569336 [2022-12-13 18:17:12,319 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 965 transitions. [2022-12-13 18:17:12,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 965 transitions. [2022-12-13 18:17:12,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:17:12,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 965 transitions. [2022-12-13 18:17:12,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.6666666666667) internal successors, (965), 3 states have internal predecessors, (965), 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 18:17:12,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 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 18:17:12,332 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 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 18:17:12,332 INFO L175 Difference]: Start difference. First operand has 73 places, 75 transitions, 155 flow. Second operand 3 states and 965 transitions. [2022-12-13 18:17:12,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 73 transitions, 223 flow [2022-12-13 18:17:12,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 73 transitions, 222 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 18:17:12,334 INFO L231 Difference]: Finished difference. Result has 72 places, 73 transitions, 152 flow [2022-12-13 18:17:12,334 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=72, PETRI_TRANSITIONS=73} [2022-12-13 18:17:12,334 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -27 predicate places. [2022-12-13 18:17:12,334 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 73 transitions, 152 flow [2022-12-13 18:17:12,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 311.6666666666667) internal successors, (935), 3 states have internal predecessors, (935), 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 18:17:12,335 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:17:12,335 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:17:12,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 18:17:12,335 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-12-13 18:17:12,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:12,335 INFO L85 PathProgramCache]: Analyzing trace with hash -2139267851, now seen corresponding path program 1 times [2022-12-13 18:17:12,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:12,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826011305] [2022-12-13 18:17:12,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:12,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:12,375 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 18:17:12,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:12,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826011305] [2022-12-13 18:17:12,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826011305] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:17:12,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:17:12,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:17:12,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721563228] [2022-12-13 18:17:12,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:17:12,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:17:12,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:12,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:17:12,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:17:12,386 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 637 [2022-12-13 18:17:12,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 73 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 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 18:17:12,389 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:17:12,389 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 637 [2022-12-13 18:17:12,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:17:12,549 INFO L130 PetriNetUnfolder]: 506/1409 cut-off events. [2022-12-13 18:17:12,550 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-12-13 18:17:12,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2222 conditions, 1409 events. 506/1409 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 9212 event pairs, 327 based on Foata normal form. 0/1197 useless extension candidates. Maximal degree in co-relation 2218. Up to 733 conditions per place. [2022-12-13 18:17:12,555 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 51 selfloop transitions, 2 changer transitions 0/90 dead transitions. [2022-12-13 18:17:12,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 90 transitions, 293 flow [2022-12-13 18:17:12,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:17:12,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:17:12,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 987 transitions. [2022-12-13 18:17:12,557 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5164835164835165 [2022-12-13 18:17:12,557 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 987 transitions. [2022-12-13 18:17:12,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 987 transitions. [2022-12-13 18:17:12,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:17:12,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 987 transitions. [2022-12-13 18:17:12,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.0) internal successors, (987), 3 states have internal predecessors, (987), 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 18:17:12,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 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 18:17:12,562 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 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 18:17:12,569 INFO L175 Difference]: Start difference. First operand has 72 places, 73 transitions, 152 flow. Second operand 3 states and 987 transitions. [2022-12-13 18:17:12,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 90 transitions, 293 flow [2022-12-13 18:17:12,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 90 transitions, 292 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 18:17:12,572 INFO L231 Difference]: Finished difference. Result has 74 places, 74 transitions, 163 flow [2022-12-13 18:17:12,572 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=74, PETRI_TRANSITIONS=74} [2022-12-13 18:17:12,573 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -25 predicate places. [2022-12-13 18:17:12,573 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 74 transitions, 163 flow [2022-12-13 18:17:12,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 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 18:17:12,575 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:17:12,575 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:17:12,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 18:17:12,575 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-12-13 18:17:12,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:12,575 INFO L85 PathProgramCache]: Analyzing trace with hash -717529494, now seen corresponding path program 1 times [2022-12-13 18:17:12,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:12,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65317982] [2022-12-13 18:17:12,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:12,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:12,635 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 18:17:12,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:12,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65317982] [2022-12-13 18:17:12,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65317982] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:17:12,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:17:12,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:17:12,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401430183] [2022-12-13 18:17:12,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:17:12,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:17:12,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:12,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:17:12,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:17:12,644 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 637 [2022-12-13 18:17:12,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 74 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 314.0) internal successors, (942), 3 states have internal predecessors, (942), 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 18:17:12,646 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:17:12,646 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 637 [2022-12-13 18:17:12,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:17:12,809 INFO L130 PetriNetUnfolder]: 545/1445 cut-off events. [2022-12-13 18:17:12,809 INFO L131 PetriNetUnfolder]: For 125/145 co-relation queries the response was YES. [2022-12-13 18:17:12,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2452 conditions, 1445 events. 545/1445 cut-off events. For 125/145 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 9239 event pairs, 358 based on Foata normal form. 0/1252 useless extension candidates. Maximal degree in co-relation 2447. Up to 796 conditions per place. [2022-12-13 18:17:12,814 INFO L137 encePairwiseOnDemand]: 634/637 looper letters, 52 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2022-12-13 18:17:12,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 91 transitions, 316 flow [2022-12-13 18:17:12,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:17:12,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:17:12,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 986 transitions. [2022-12-13 18:17:12,820 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5159602302459445 [2022-12-13 18:17:12,820 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 986 transitions. [2022-12-13 18:17:12,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 986 transitions. [2022-12-13 18:17:12,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:17:12,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 986 transitions. [2022-12-13 18:17:12,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 328.6666666666667) internal successors, (986), 3 states have internal predecessors, (986), 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 18:17:12,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 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 18:17:12,825 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 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 18:17:12,825 INFO L175 Difference]: Start difference. First operand has 74 places, 74 transitions, 163 flow. Second operand 3 states and 986 transitions. [2022-12-13 18:17:12,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 91 transitions, 316 flow [2022-12-13 18:17:12,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 91 transitions, 312 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 18:17:12,827 INFO L231 Difference]: Finished difference. Result has 76 places, 75 transitions, 173 flow [2022-12-13 18:17:12,827 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=76, PETRI_TRANSITIONS=75} [2022-12-13 18:17:12,827 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -23 predicate places. [2022-12-13 18:17:12,827 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 75 transitions, 173 flow [2022-12-13 18:17:12,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 314.0) internal successors, (942), 3 states have internal predecessors, (942), 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 18:17:12,828 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:17:12,828 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:17:12,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 18:17:12,828 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-12-13 18:17:12,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:12,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1454871301, now seen corresponding path program 1 times [2022-12-13 18:17:12,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:12,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057726017] [2022-12-13 18:17:12,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:12,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:12,859 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 18:17:12,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:12,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057726017] [2022-12-13 18:17:12,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057726017] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:17:12,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:17:12,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:17:12,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915009004] [2022-12-13 18:17:12,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:17:12,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:17:12,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:12,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:17:12,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:17:12,870 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 637 [2022-12-13 18:17:12,872 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 75 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 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 18:17:12,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:17:12,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 637 [2022-12-13 18:17:12,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:17:13,121 INFO L130 PetriNetUnfolder]: 866/2086 cut-off events. [2022-12-13 18:17:13,121 INFO L131 PetriNetUnfolder]: For 251/271 co-relation queries the response was YES. [2022-12-13 18:17:13,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3890 conditions, 2086 events. 866/2086 cut-off events. For 251/271 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 12881 event pairs, 225 based on Foata normal form. 0/1850 useless extension candidates. Maximal degree in co-relation 3884. Up to 953 conditions per place. [2022-12-13 18:17:13,130 INFO L137 encePairwiseOnDemand]: 633/637 looper letters, 61 selfloop transitions, 2 changer transitions 0/97 dead transitions. [2022-12-13 18:17:13,130 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 97 transitions, 363 flow [2022-12-13 18:17:13,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:17:13,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:17:13,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 997 transitions. [2022-12-13 18:17:13,133 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.521716378859236 [2022-12-13 18:17:13,133 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 997 transitions. [2022-12-13 18:17:13,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 997 transitions. [2022-12-13 18:17:13,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:17:13,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 997 transitions. [2022-12-13 18:17:13,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 332.3333333333333) internal successors, (997), 3 states have internal predecessors, (997), 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 18:17:13,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 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 18:17:13,141 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 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 18:17:13,141 INFO L175 Difference]: Start difference. First operand has 76 places, 75 transitions, 173 flow. Second operand 3 states and 997 transitions. [2022-12-13 18:17:13,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 97 transitions, 363 flow [2022-12-13 18:17:13,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 97 transitions, 359 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 18:17:13,144 INFO L231 Difference]: Finished difference. Result has 76 places, 75 transitions, 183 flow [2022-12-13 18:17:13,144 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=183, PETRI_PLACES=76, PETRI_TRANSITIONS=75} [2022-12-13 18:17:13,145 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -23 predicate places. [2022-12-13 18:17:13,145 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 75 transitions, 183 flow [2022-12-13 18:17:13,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 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 18:17:13,146 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:17:13,146 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:17:13,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 18:17:13,146 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-12-13 18:17:13,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:13,147 INFO L85 PathProgramCache]: Analyzing trace with hash -785942287, now seen corresponding path program 1 times [2022-12-13 18:17:13,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:13,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755322137] [2022-12-13 18:17:13,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:13,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:13,461 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 18:17:13,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:13,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755322137] [2022-12-13 18:17:13,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755322137] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:17:13,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:17:13,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:17:13,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458406680] [2022-12-13 18:17:13,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:17:13,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:17:13,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:13,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:17:13,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:17:13,727 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 637 [2022-12-13 18:17:13,729 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 75 transitions, 183 flow. Second operand has 6 states, 6 states have (on average 303.8333333333333) internal successors, (1823), 6 states have internal predecessors, (1823), 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 18:17:13,729 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:17:13,729 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 637 [2022-12-13 18:17:13,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:17:14,254 INFO L130 PetriNetUnfolder]: 2775/4600 cut-off events. [2022-12-13 18:17:14,255 INFO L131 PetriNetUnfolder]: For 1126/1126 co-relation queries the response was YES. [2022-12-13 18:17:14,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9999 conditions, 4600 events. 2775/4600 cut-off events. For 1126/1126 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 25789 event pairs, 195 based on Foata normal form. 0/4237 useless extension candidates. Maximal degree in co-relation 9993. Up to 1492 conditions per place. [2022-12-13 18:17:14,288 INFO L137 encePairwiseOnDemand]: 632/637 looper letters, 151 selfloop transitions, 4 changer transitions 0/186 dead transitions. [2022-12-13 18:17:14,288 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 186 transitions, 807 flow [2022-12-13 18:17:14,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:17:14,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 18:17:14,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1953 transitions. [2022-12-13 18:17:14,295 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.510989010989011 [2022-12-13 18:17:14,295 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1953 transitions. [2022-12-13 18:17:14,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1953 transitions. [2022-12-13 18:17:14,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:17:14,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1953 transitions. [2022-12-13 18:17:14,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 325.5) internal successors, (1953), 6 states have internal predecessors, (1953), 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 18:17:14,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 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 18:17:14,313 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 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 18:17:14,313 INFO L175 Difference]: Start difference. First operand has 76 places, 75 transitions, 183 flow. Second operand 6 states and 1953 transitions. [2022-12-13 18:17:14,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 186 transitions, 807 flow [2022-12-13 18:17:14,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 186 transitions, 807 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 18:17:14,319 INFO L231 Difference]: Finished difference. Result has 80 places, 74 transitions, 189 flow [2022-12-13 18:17:14,319 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=189, PETRI_PLACES=80, PETRI_TRANSITIONS=74} [2022-12-13 18:17:14,320 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -19 predicate places. [2022-12-13 18:17:14,320 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 74 transitions, 189 flow [2022-12-13 18:17:14,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 303.8333333333333) internal successors, (1823), 6 states have internal predecessors, (1823), 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 18:17:14,322 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:17:14,322 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:17:14,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 18:17:14,322 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-12-13 18:17:14,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:14,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1823452779, now seen corresponding path program 1 times [2022-12-13 18:17:14,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:14,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621761986] [2022-12-13 18:17:14,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:14,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:14,353 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 18:17:14,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:14,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621761986] [2022-12-13 18:17:14,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621761986] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:17:14,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:17:14,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:17:14,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660768015] [2022-12-13 18:17:14,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:17:14,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:17:14,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:14,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:17:14,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:17:14,363 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 637 [2022-12-13 18:17:14,365 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 74 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 316.0) internal successors, (948), 3 states have internal predecessors, (948), 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 18:17:14,365 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:17:14,365 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 637 [2022-12-13 18:17:14,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:17:14,594 INFO L130 PetriNetUnfolder]: 946/2163 cut-off events. [2022-12-13 18:17:14,595 INFO L131 PetriNetUnfolder]: For 547/567 co-relation queries the response was YES. [2022-12-13 18:17:14,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4447 conditions, 2163 events. 946/2163 cut-off events. For 547/567 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 12865 event pairs, 231 based on Foata normal form. 0/1978 useless extension candidates. Maximal degree in co-relation 4440. Up to 1071 conditions per place. [2022-12-13 18:17:14,606 INFO L137 encePairwiseOnDemand]: 633/637 looper letters, 62 selfloop transitions, 2 changer transitions 0/96 dead transitions. [2022-12-13 18:17:14,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 96 transitions, 384 flow [2022-12-13 18:17:14,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:17:14,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:17:14,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 997 transitions. [2022-12-13 18:17:14,620 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.521716378859236 [2022-12-13 18:17:14,620 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 997 transitions. [2022-12-13 18:17:14,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 997 transitions. [2022-12-13 18:17:14,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:17:14,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 997 transitions. [2022-12-13 18:17:14,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 332.3333333333333) internal successors, (997), 3 states have internal predecessors, (997), 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 18:17:14,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 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 18:17:14,625 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 637.0) internal successors, (2548), 4 states have internal predecessors, (2548), 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 18:17:14,625 INFO L175 Difference]: Start difference. First operand has 80 places, 74 transitions, 189 flow. Second operand 3 states and 997 transitions. [2022-12-13 18:17:14,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 96 transitions, 384 flow [2022-12-13 18:17:14,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 96 transitions, 375 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 18:17:14,629 INFO L231 Difference]: Finished difference. Result has 77 places, 74 transitions, 194 flow [2022-12-13 18:17:14,629 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=77, PETRI_TRANSITIONS=74} [2022-12-13 18:17:14,629 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -22 predicate places. [2022-12-13 18:17:14,630 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 74 transitions, 194 flow [2022-12-13 18:17:14,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 316.0) internal successors, (948), 3 states have internal predecessors, (948), 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 18:17:14,630 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:17:14,630 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:17:14,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 18:17:14,631 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-12-13 18:17:14,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:14,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1514616607, now seen corresponding path program 1 times [2022-12-13 18:17:14,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:14,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118731267] [2022-12-13 18:17:14,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:14,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:14,726 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 18:17:14,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:14,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118731267] [2022-12-13 18:17:14,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118731267] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:17:14,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:17:14,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:17:14,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529060653] [2022-12-13 18:17:14,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:17:14,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 18:17:14,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:14,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 18:17:14,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 18:17:14,831 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 637 [2022-12-13 18:17:14,833 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 74 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 310.75) internal successors, (1243), 4 states have internal predecessors, (1243), 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 18:17:14,833 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:17:14,834 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 637 [2022-12-13 18:17:14,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:17:15,099 INFO L130 PetriNetUnfolder]: 1208/2852 cut-off events. [2022-12-13 18:17:15,099 INFO L131 PetriNetUnfolder]: For 523/559 co-relation queries the response was YES. [2022-12-13 18:17:15,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5689 conditions, 2852 events. 1208/2852 cut-off events. For 523/559 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 18743 event pairs, 910 based on Foata normal form. 46/2707 useless extension candidates. Maximal degree in co-relation 5682. Up to 1426 conditions per place. [2022-12-13 18:17:15,110 INFO L137 encePairwiseOnDemand]: 633/637 looper letters, 65 selfloop transitions, 3 changer transitions 0/102 dead transitions. [2022-12-13 18:17:15,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 102 transitions, 409 flow [2022-12-13 18:17:15,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 18:17:15,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 18:17:15,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1295 transitions. [2022-12-13 18:17:15,112 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5082417582417582 [2022-12-13 18:17:15,113 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1295 transitions. [2022-12-13 18:17:15,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1295 transitions. [2022-12-13 18:17:15,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:17:15,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1295 transitions. [2022-12-13 18:17:15,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 323.75) internal successors, (1295), 4 states have internal predecessors, (1295), 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 18:17:15,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 637.0) internal successors, (3185), 5 states have internal predecessors, (3185), 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 18:17:15,117 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 637.0) internal successors, (3185), 5 states have internal predecessors, (3185), 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 18:17:15,117 INFO L175 Difference]: Start difference. First operand has 77 places, 74 transitions, 194 flow. Second operand 4 states and 1295 transitions. [2022-12-13 18:17:15,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 102 transitions, 409 flow [2022-12-13 18:17:15,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 102 transitions, 409 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 18:17:15,120 INFO L231 Difference]: Finished difference. Result has 82 places, 76 transitions, 215 flow [2022-12-13 18:17:15,121 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=215, PETRI_PLACES=82, PETRI_TRANSITIONS=76} [2022-12-13 18:17:15,121 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -17 predicate places. [2022-12-13 18:17:15,121 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 76 transitions, 215 flow [2022-12-13 18:17:15,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 310.75) internal successors, (1243), 4 states have internal predecessors, (1243), 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 18:17:15,122 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:17:15,122 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 18:17:15,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 18:17:15,122 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-12-13 18:17:15,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:15,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1080028451, now seen corresponding path program 1 times [2022-12-13 18:17:15,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:15,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580284885] [2022-12-13 18:17:15,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:15,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:15,217 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 18:17:15,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:15,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580284885] [2022-12-13 18:17:15,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580284885] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:17:15,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:17:15,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 18:17:15,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393585847] [2022-12-13 18:17:15,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:17:15,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:17:15,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:15,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:17:15,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:17:15,379 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 637 [2022-12-13 18:17:15,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 76 transitions, 215 flow. Second operand has 5 states, 5 states have (on average 302.6) internal successors, (1513), 5 states have internal predecessors, (1513), 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 18:17:15,380 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:17:15,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 637 [2022-12-13 18:17:15,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:17:15,654 INFO L130 PetriNetUnfolder]: 998/2291 cut-off events. [2022-12-13 18:17:15,654 INFO L131 PetriNetUnfolder]: For 474/518 co-relation queries the response was YES. [2022-12-13 18:17:15,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4663 conditions, 2291 events. 998/2291 cut-off events. For 474/518 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 13885 event pairs, 643 based on Foata normal form. 14/2153 useless extension candidates. Maximal degree in co-relation 4653. Up to 1307 conditions per place. [2022-12-13 18:17:15,664 INFO L137 encePairwiseOnDemand]: 630/637 looper letters, 74 selfloop transitions, 9 changer transitions 0/117 dead transitions. [2022-12-13 18:17:15,664 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 117 transitions, 499 flow [2022-12-13 18:17:15,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:17:15,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 18:17:15,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1878 transitions. [2022-12-13 18:17:15,668 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4913657770800628 [2022-12-13 18:17:15,669 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1878 transitions. [2022-12-13 18:17:15,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1878 transitions. [2022-12-13 18:17:15,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:17:15,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1878 transitions. [2022-12-13 18:17:15,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 313.0) internal successors, (1878), 6 states have internal predecessors, (1878), 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 18:17:15,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 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 18:17:15,683 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 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 18:17:15,683 INFO L175 Difference]: Start difference. First operand has 82 places, 76 transitions, 215 flow. Second operand 6 states and 1878 transitions. [2022-12-13 18:17:15,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 117 transitions, 499 flow [2022-12-13 18:17:15,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 117 transitions, 495 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 18:17:15,686 INFO L231 Difference]: Finished difference. Result has 88 places, 80 transitions, 258 flow [2022-12-13 18:17:15,686 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=258, PETRI_PLACES=88, PETRI_TRANSITIONS=80} [2022-12-13 18:17:15,686 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -11 predicate places. [2022-12-13 18:17:15,687 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 80 transitions, 258 flow [2022-12-13 18:17:15,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 302.6) internal successors, (1513), 5 states have internal predecessors, (1513), 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 18:17:15,688 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:17:15,688 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 18:17:15,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 18:17:15,688 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-12-13 18:17:15,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:15,688 INFO L85 PathProgramCache]: Analyzing trace with hash -368078688, now seen corresponding path program 1 times [2022-12-13 18:17:15,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:15,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481913023] [2022-12-13 18:17:15,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:15,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:15,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 18:17:15,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:15,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481913023] [2022-12-13 18:17:15,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481913023] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:17:15,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:17:15,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:17:15,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704910597] [2022-12-13 18:17:15,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:17:15,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:17:15,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:15,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:17:15,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:17:15,947 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 637 [2022-12-13 18:17:15,949 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 80 transitions, 258 flow. Second operand has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 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 18:17:15,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:17:15,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 637 [2022-12-13 18:17:15,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:17:16,450 INFO L130 PetriNetUnfolder]: 2176/4888 cut-off events. [2022-12-13 18:17:16,450 INFO L131 PetriNetUnfolder]: For 1604/1614 co-relation queries the response was YES. [2022-12-13 18:17:16,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10552 conditions, 4888 events. 2176/4888 cut-off events. For 1604/1614 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 33079 event pairs, 1023 based on Foata normal form. 58/4626 useless extension candidates. Maximal degree in co-relation 10540. Up to 1377 conditions per place. [2022-12-13 18:17:16,464 INFO L137 encePairwiseOnDemand]: 628/637 looper letters, 159 selfloop transitions, 14 changer transitions 0/207 dead transitions. [2022-12-13 18:17:16,464 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 207 transitions, 1063 flow [2022-12-13 18:17:16,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 18:17:16,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 18:17:16,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2536 transitions. [2022-12-13 18:17:16,467 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4976452119309262 [2022-12-13 18:17:16,467 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2536 transitions. [2022-12-13 18:17:16,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2536 transitions. [2022-12-13 18:17:16,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:17:16,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2536 transitions. [2022-12-13 18:17:16,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 317.0) internal successors, (2536), 8 states have internal predecessors, (2536), 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 18:17:16,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 637.0) internal successors, (5733), 9 states have internal predecessors, (5733), 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 18:17:16,482 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 637.0) internal successors, (5733), 9 states have internal predecessors, (5733), 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 18:17:16,482 INFO L175 Difference]: Start difference. First operand has 88 places, 80 transitions, 258 flow. Second operand 8 states and 2536 transitions. [2022-12-13 18:17:16,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 207 transitions, 1063 flow [2022-12-13 18:17:16,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 207 transitions, 1060 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 18:17:16,492 INFO L231 Difference]: Finished difference. Result has 98 places, 89 transitions, 345 flow [2022-12-13 18:17:16,492 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=345, PETRI_PLACES=98, PETRI_TRANSITIONS=89} [2022-12-13 18:17:16,493 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -1 predicate places. [2022-12-13 18:17:16,493 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 89 transitions, 345 flow [2022-12-13 18:17:16,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 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 18:17:16,493 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:17:16,494 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:17:16,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 18:17:16,494 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-12-13 18:17:16,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:16,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1842983258, now seen corresponding path program 1 times [2022-12-13 18:17:16,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:16,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417705603] [2022-12-13 18:17:16,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:16,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:16,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 18:17:16,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:16,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417705603] [2022-12-13 18:17:16,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417705603] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:17:16,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:17:16,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:17:16,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828864321] [2022-12-13 18:17:16,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:17:16,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:17:16,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:16,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:17:16,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:17:17,070 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 637 [2022-12-13 18:17:17,072 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 89 transitions, 345 flow. Second operand has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 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 18:17:17,073 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:17:17,073 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 637 [2022-12-13 18:17:17,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:17:17,690 INFO L130 PetriNetUnfolder]: 2817/6044 cut-off events. [2022-12-13 18:17:17,690 INFO L131 PetriNetUnfolder]: For 3788/3876 co-relation queries the response was YES. [2022-12-13 18:17:17,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14188 conditions, 6044 events. 2817/6044 cut-off events. For 3788/3876 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 40259 event pairs, 1598 based on Foata normal form. 2/5761 useless extension candidates. Maximal degree in co-relation 14171. Up to 3310 conditions per place. [2022-12-13 18:17:17,710 INFO L137 encePairwiseOnDemand]: 631/637 looper letters, 128 selfloop transitions, 6 changer transitions 0/162 dead transitions. [2022-12-13 18:17:17,710 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 162 transitions, 864 flow [2022-12-13 18:17:17,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:17:17,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 18:17:17,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1914 transitions. [2022-12-13 18:17:17,712 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5007849293563579 [2022-12-13 18:17:17,712 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1914 transitions. [2022-12-13 18:17:17,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1914 transitions. [2022-12-13 18:17:17,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:17:17,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1914 transitions. [2022-12-13 18:17:17,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 319.0) internal successors, (1914), 6 states have internal predecessors, (1914), 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 18:17:17,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 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 18:17:17,719 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 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 18:17:17,719 INFO L175 Difference]: Start difference. First operand has 98 places, 89 transitions, 345 flow. Second operand 6 states and 1914 transitions. [2022-12-13 18:17:17,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 162 transitions, 864 flow [2022-12-13 18:17:17,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 162 transitions, 862 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-12-13 18:17:17,727 INFO L231 Difference]: Finished difference. Result has 102 places, 88 transitions, 353 flow [2022-12-13 18:17:17,727 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=353, PETRI_PLACES=102, PETRI_TRANSITIONS=88} [2022-12-13 18:17:17,728 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, 3 predicate places. [2022-12-13 18:17:17,728 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 88 transitions, 353 flow [2022-12-13 18:17:17,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 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 18:17:17,729 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:17:17,729 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:17:17,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 18:17:17,729 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-12-13 18:17:17,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:17,729 INFO L85 PathProgramCache]: Analyzing trace with hash -2032001724, now seen corresponding path program 1 times [2022-12-13 18:17:17,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:17,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142329603] [2022-12-13 18:17:17,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:17,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:17,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 18:17:17,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:17,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142329603] [2022-12-13 18:17:17,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142329603] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:17:17,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:17:17,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:17:17,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902800477] [2022-12-13 18:17:17,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:17:17,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:17:17,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:17,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:17:17,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:17:18,022 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 637 [2022-12-13 18:17:18,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 88 transitions, 353 flow. Second operand has 6 states, 6 states have (on average 301.3333333333333) internal successors, (1808), 6 states have internal predecessors, (1808), 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 18:17:18,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:17:18,024 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 637 [2022-12-13 18:17:18,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:17:18,763 INFO L130 PetriNetUnfolder]: 2655/6208 cut-off events. [2022-12-13 18:17:18,763 INFO L131 PetriNetUnfolder]: For 3442/3544 co-relation queries the response was YES. [2022-12-13 18:17:18,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14210 conditions, 6208 events. 2655/6208 cut-off events. For 3442/3544 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 43443 event pairs, 1008 based on Foata normal form. 40/5927 useless extension candidates. Maximal degree in co-relation 14192. Up to 1846 conditions per place. [2022-12-13 18:17:18,783 INFO L137 encePairwiseOnDemand]: 628/637 looper letters, 155 selfloop transitions, 17 changer transitions 0/205 dead transitions. [2022-12-13 18:17:18,783 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 205 transitions, 1181 flow [2022-12-13 18:17:18,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 18:17:18,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 18:17:18,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2830 transitions. [2022-12-13 18:17:18,786 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4936333507762079 [2022-12-13 18:17:18,787 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2830 transitions. [2022-12-13 18:17:18,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2830 transitions. [2022-12-13 18:17:18,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:17:18,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2830 transitions. [2022-12-13 18:17:18,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 314.44444444444446) internal successors, (2830), 9 states have internal predecessors, (2830), 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 18:17:18,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 637.0) internal successors, (6370), 10 states have internal predecessors, (6370), 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 18:17:18,794 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 637.0) internal successors, (6370), 10 states have internal predecessors, (6370), 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 18:17:18,794 INFO L175 Difference]: Start difference. First operand has 102 places, 88 transitions, 353 flow. Second operand 9 states and 2830 transitions. [2022-12-13 18:17:18,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 205 transitions, 1181 flow [2022-12-13 18:17:18,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 205 transitions, 1153 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 18:17:18,802 INFO L231 Difference]: Finished difference. Result has 108 places, 96 transitions, 443 flow [2022-12-13 18:17:18,802 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=443, PETRI_PLACES=108, PETRI_TRANSITIONS=96} [2022-12-13 18:17:18,803 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, 9 predicate places. [2022-12-13 18:17:18,803 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 96 transitions, 443 flow [2022-12-13 18:17:18,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 301.3333333333333) internal successors, (1808), 6 states have internal predecessors, (1808), 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 18:17:18,803 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:17:18,803 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:17:18,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 18:17:18,804 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-12-13 18:17:18,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:18,804 INFO L85 PathProgramCache]: Analyzing trace with hash 2086409162, now seen corresponding path program 1 times [2022-12-13 18:17:18,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:18,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076408153] [2022-12-13 18:17:18,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:18,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:19,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 18:17:19,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:19,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076408153] [2022-12-13 18:17:19,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076408153] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:17:19,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:17:19,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:17:19,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672690447] [2022-12-13 18:17:19,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:17:19,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:17:19,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:19,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:17:19,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:17:19,306 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 637 [2022-12-13 18:17:19,308 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 96 transitions, 443 flow. Second operand has 6 states, 6 states have (on average 304.1666666666667) internal successors, (1825), 6 states have internal predecessors, (1825), 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 18:17:19,308 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:17:19,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 637 [2022-12-13 18:17:19,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:17:20,033 INFO L130 PetriNetUnfolder]: 3177/6691 cut-off events. [2022-12-13 18:17:20,033 INFO L131 PetriNetUnfolder]: For 4917/4999 co-relation queries the response was YES. [2022-12-13 18:17:20,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16451 conditions, 6691 events. 3177/6691 cut-off events. For 4917/4999 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 44023 event pairs, 1543 based on Foata normal form. 2/6561 useless extension candidates. Maximal degree in co-relation 16430. Up to 3139 conditions per place. [2022-12-13 18:17:20,056 INFO L137 encePairwiseOnDemand]: 631/637 looper letters, 141 selfloop transitions, 6 changer transitions 0/175 dead transitions. [2022-12-13 18:17:20,057 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 175 transitions, 1075 flow [2022-12-13 18:17:20,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:17:20,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 18:17:20,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1907 transitions. [2022-12-13 18:17:20,059 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4989534275248561 [2022-12-13 18:17:20,059 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1907 transitions. [2022-12-13 18:17:20,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1907 transitions. [2022-12-13 18:17:20,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:17:20,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1907 transitions. [2022-12-13 18:17:20,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 317.8333333333333) internal successors, (1907), 6 states have internal predecessors, (1907), 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 18:17:20,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 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 18:17:20,083 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 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 18:17:20,083 INFO L175 Difference]: Start difference. First operand has 108 places, 96 transitions, 443 flow. Second operand 6 states and 1907 transitions. [2022-12-13 18:17:20,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 175 transitions, 1075 flow [2022-12-13 18:17:20,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 175 transitions, 1071 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 18:17:20,093 INFO L231 Difference]: Finished difference. Result has 111 places, 95 transitions, 449 flow [2022-12-13 18:17:20,093 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=449, PETRI_PLACES=111, PETRI_TRANSITIONS=95} [2022-12-13 18:17:20,093 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, 12 predicate places. [2022-12-13 18:17:20,093 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 95 transitions, 449 flow [2022-12-13 18:17:20,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 304.1666666666667) internal successors, (1825), 6 states have internal predecessors, (1825), 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 18:17:20,094 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:17:20,094 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:17:20,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 18:17:20,094 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-12-13 18:17:20,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:20,094 INFO L85 PathProgramCache]: Analyzing trace with hash 562114809, now seen corresponding path program 1 times [2022-12-13 18:17:20,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:20,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606373739] [2022-12-13 18:17:20,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:20,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:20,270 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 18:17:20,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:20,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606373739] [2022-12-13 18:17:20,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606373739] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:17:20,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:17:20,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:17:20,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124971530] [2022-12-13 18:17:20,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:17:20,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:17:20,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:20,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:17:20,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:17:20,554 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 637 [2022-12-13 18:17:20,556 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 95 transitions, 449 flow. Second operand has 6 states, 6 states have (on average 304.6666666666667) internal successors, (1828), 6 states have internal predecessors, (1828), 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 18:17:20,556 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:17:20,556 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 637 [2022-12-13 18:17:20,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:17:21,386 INFO L130 PetriNetUnfolder]: 2869/6347 cut-off events. [2022-12-13 18:17:21,386 INFO L131 PetriNetUnfolder]: For 5306/5450 co-relation queries the response was YES. [2022-12-13 18:17:21,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16230 conditions, 6347 events. 2869/6347 cut-off events. For 5306/5450 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 42950 event pairs, 2018 based on Foata normal form. 6/6253 useless extension candidates. Maximal degree in co-relation 16208. Up to 4029 conditions per place. [2022-12-13 18:17:21,410 INFO L137 encePairwiseOnDemand]: 632/637 looper letters, 96 selfloop transitions, 4 changer transitions 75/202 dead transitions. [2022-12-13 18:17:21,410 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 202 transitions, 1509 flow [2022-12-13 18:17:21,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:17:21,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 18:17:21,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1905 transitions. [2022-12-13 18:17:21,414 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49843014128728413 [2022-12-13 18:17:21,414 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1905 transitions. [2022-12-13 18:17:21,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1905 transitions. [2022-12-13 18:17:21,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:17:21,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1905 transitions. [2022-12-13 18:17:21,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 317.5) internal successors, (1905), 6 states have internal predecessors, (1905), 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 18:17:21,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 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 18:17:21,420 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 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 18:17:21,420 INFO L175 Difference]: Start difference. First operand has 111 places, 95 transitions, 449 flow. Second operand 6 states and 1905 transitions. [2022-12-13 18:17:21,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 202 transitions, 1509 flow [2022-12-13 18:17:21,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 202 transitions, 1473 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 18:17:21,433 INFO L231 Difference]: Finished difference. Result has 110 places, 79 transitions, 305 flow [2022-12-13 18:17:21,433 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=305, PETRI_PLACES=110, PETRI_TRANSITIONS=79} [2022-12-13 18:17:21,434 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, 11 predicate places. [2022-12-13 18:17:21,434 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 79 transitions, 305 flow [2022-12-13 18:17:21,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 304.6666666666667) internal successors, (1828), 6 states have internal predecessors, (1828), 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 18:17:21,434 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:17:21,434 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:17:21,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 18:17:21,434 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-12-13 18:17:21,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:21,435 INFO L85 PathProgramCache]: Analyzing trace with hash -964646780, now seen corresponding path program 1 times [2022-12-13 18:17:21,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:21,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730457264] [2022-12-13 18:17:21,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:21,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:21,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:21,743 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 18:17:21,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:21,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730457264] [2022-12-13 18:17:21,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730457264] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:17:21,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:17:21,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:17:21,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812382823] [2022-12-13 18:17:21,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:17:21,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:17:21,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:21,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:17:21,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:17:22,024 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 637 [2022-12-13 18:17:22,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 79 transitions, 305 flow. Second operand has 6 states, 6 states have (on average 304.5) internal successors, (1827), 6 states have internal predecessors, (1827), 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 18:17:22,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:17:22,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 637 [2022-12-13 18:17:22,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:17:22,674 INFO L130 PetriNetUnfolder]: 2746/5750 cut-off events. [2022-12-13 18:17:22,675 INFO L131 PetriNetUnfolder]: For 3783/3831 co-relation queries the response was YES. [2022-12-13 18:17:22,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14035 conditions, 5750 events. 2746/5750 cut-off events. For 3783/3831 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 36983 event pairs, 1575 based on Foata normal form. 6/5693 useless extension candidates. Maximal degree in co-relation 14013. Up to 3175 conditions per place. [2022-12-13 18:17:22,691 INFO L137 encePairwiseOnDemand]: 631/637 looper letters, 82 selfloop transitions, 6 changer transitions 43/154 dead transitions. [2022-12-13 18:17:22,691 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 154 transitions, 869 flow [2022-12-13 18:17:22,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:17:22,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 18:17:22,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1906 transitions. [2022-12-13 18:17:22,694 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4986917844060701 [2022-12-13 18:17:22,694 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1906 transitions. [2022-12-13 18:17:22,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1906 transitions. [2022-12-13 18:17:22,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:17:22,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1906 transitions. [2022-12-13 18:17:22,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 317.6666666666667) internal successors, (1906), 6 states have internal predecessors, (1906), 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 18:17:22,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 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 18:17:22,698 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 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 18:17:22,699 INFO L175 Difference]: Start difference. First operand has 110 places, 79 transitions, 305 flow. Second operand 6 states and 1906 transitions. [2022-12-13 18:17:22,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 154 transitions, 869 flow [2022-12-13 18:17:22,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 154 transitions, 768 flow, removed 26 selfloop flow, removed 15 redundant places. [2022-12-13 18:17:22,706 INFO L231 Difference]: Finished difference. Result has 92 places, 67 transitions, 230 flow [2022-12-13 18:17:22,706 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=230, PETRI_PLACES=92, PETRI_TRANSITIONS=67} [2022-12-13 18:17:22,707 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -7 predicate places. [2022-12-13 18:17:22,707 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 67 transitions, 230 flow [2022-12-13 18:17:22,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 304.5) internal successors, (1827), 6 states have internal predecessors, (1827), 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 18:17:22,707 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:17:22,707 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:17:22,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 18:17:22,707 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-12-13 18:17:22,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:22,708 INFO L85 PathProgramCache]: Analyzing trace with hash 303937613, now seen corresponding path program 1 times [2022-12-13 18:17:22,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:22,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257878442] [2022-12-13 18:17:22,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:22,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:22,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 18:17:22,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:22,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257878442] [2022-12-13 18:17:22,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257878442] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:17:22,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:17:22,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:17:22,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693301532] [2022-12-13 18:17:22,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:17:22,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:17:22,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:22,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:17:22,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:17:23,183 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 637 [2022-12-13 18:17:23,184 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 67 transitions, 230 flow. Second operand has 6 states, 6 states have (on average 304.1666666666667) internal successors, (1825), 6 states have internal predecessors, (1825), 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 18:17:23,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:17:23,184 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 637 [2022-12-13 18:17:23,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:17:23,685 INFO L130 PetriNetUnfolder]: 2418/4997 cut-off events. [2022-12-13 18:17:23,685 INFO L131 PetriNetUnfolder]: For 1216/1228 co-relation queries the response was YES. [2022-12-13 18:17:23,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11026 conditions, 4997 events. 2418/4997 cut-off events. For 1216/1228 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 29888 event pairs, 1369 based on Foata normal form. 2/4966 useless extension candidates. Maximal degree in co-relation 11012. Up to 2593 conditions per place. [2022-12-13 18:17:23,695 INFO L137 encePairwiseOnDemand]: 631/637 looper letters, 0 selfloop transitions, 0 changer transitions 146/146 dead transitions. [2022-12-13 18:17:23,695 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 146 transitions, 762 flow [2022-12-13 18:17:23,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:17:23,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 18:17:23,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1907 transitions. [2022-12-13 18:17:23,697 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4989534275248561 [2022-12-13 18:17:23,697 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1907 transitions. [2022-12-13 18:17:23,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1907 transitions. [2022-12-13 18:17:23,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:17:23,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1907 transitions. [2022-12-13 18:17:23,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 317.8333333333333) internal successors, (1907), 6 states have internal predecessors, (1907), 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 18:17:23,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 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 18:17:23,702 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 637.0) internal successors, (4459), 7 states have internal predecessors, (4459), 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 18:17:23,702 INFO L175 Difference]: Start difference. First operand has 92 places, 67 transitions, 230 flow. Second operand 6 states and 1907 transitions. [2022-12-13 18:17:23,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 146 transitions, 762 flow [2022-12-13 18:17:23,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 146 transitions, 720 flow, removed 2 selfloop flow, removed 7 redundant places. [2022-12-13 18:17:23,727 INFO L231 Difference]: Finished difference. Result has 80 places, 0 transitions, 0 flow [2022-12-13 18:17:23,728 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=637, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=80, PETRI_TRANSITIONS=0} [2022-12-13 18:17:23,728 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -19 predicate places. [2022-12-13 18:17:23,728 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 0 transitions, 0 flow [2022-12-13 18:17:23,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 304.1666666666667) internal successors, (1825), 6 states have internal predecessors, (1825), 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 18:17:23,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (61 of 62 remaining) [2022-12-13 18:17:23,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (60 of 62 remaining) [2022-12-13 18:17:23,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (59 of 62 remaining) [2022-12-13 18:17:23,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (58 of 62 remaining) [2022-12-13 18:17:23,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (57 of 62 remaining) [2022-12-13 18:17:23,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (56 of 62 remaining) [2022-12-13 18:17:23,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (55 of 62 remaining) [2022-12-13 18:17:23,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (54 of 62 remaining) [2022-12-13 18:17:23,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (53 of 62 remaining) [2022-12-13 18:17:23,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (52 of 62 remaining) [2022-12-13 18:17:23,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (51 of 62 remaining) [2022-12-13 18:17:23,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (50 of 62 remaining) [2022-12-13 18:17:23,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (49 of 62 remaining) [2022-12-13 18:17:23,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (48 of 62 remaining) [2022-12-13 18:17:23,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (47 of 62 remaining) [2022-12-13 18:17:23,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (46 of 62 remaining) [2022-12-13 18:17:23,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (45 of 62 remaining) [2022-12-13 18:17:23,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (44 of 62 remaining) [2022-12-13 18:17:23,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (43 of 62 remaining) [2022-12-13 18:17:23,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (42 of 62 remaining) [2022-12-13 18:17:23,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (41 of 62 remaining) [2022-12-13 18:17:23,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (40 of 62 remaining) [2022-12-13 18:17:23,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (39 of 62 remaining) [2022-12-13 18:17:23,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (38 of 62 remaining) [2022-12-13 18:17:23,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 62 remaining) [2022-12-13 18:17:23,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 62 remaining) [2022-12-13 18:17:23,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 62 remaining) [2022-12-13 18:17:23,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (34 of 62 remaining) [2022-12-13 18:17:23,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 62 remaining) [2022-12-13 18:17:23,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 62 remaining) [2022-12-13 18:17:23,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (31 of 62 remaining) [2022-12-13 18:17:23,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (30 of 62 remaining) [2022-12-13 18:17:23,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (29 of 62 remaining) [2022-12-13 18:17:23,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (28 of 62 remaining) [2022-12-13 18:17:23,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (27 of 62 remaining) [2022-12-13 18:17:23,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (26 of 62 remaining) [2022-12-13 18:17:23,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 62 remaining) [2022-12-13 18:17:23,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 62 remaining) [2022-12-13 18:17:23,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (23 of 62 remaining) [2022-12-13 18:17:23,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (22 of 62 remaining) [2022-12-13 18:17:23,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (21 of 62 remaining) [2022-12-13 18:17:23,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (20 of 62 remaining) [2022-12-13 18:17:23,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (19 of 62 remaining) [2022-12-13 18:17:23,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (18 of 62 remaining) [2022-12-13 18:17:23,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (17 of 62 remaining) [2022-12-13 18:17:23,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (16 of 62 remaining) [2022-12-13 18:17:23,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (15 of 62 remaining) [2022-12-13 18:17:23,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (14 of 62 remaining) [2022-12-13 18:17:23,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (13 of 62 remaining) [2022-12-13 18:17:23,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (12 of 62 remaining) [2022-12-13 18:17:23,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (11 of 62 remaining) [2022-12-13 18:17:23,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (10 of 62 remaining) [2022-12-13 18:17:23,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (9 of 62 remaining) [2022-12-13 18:17:23,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (8 of 62 remaining) [2022-12-13 18:17:23,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (7 of 62 remaining) [2022-12-13 18:17:23,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (6 of 62 remaining) [2022-12-13 18:17:23,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (5 of 62 remaining) [2022-12-13 18:17:23,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (4 of 62 remaining) [2022-12-13 18:17:23,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (3 of 62 remaining) [2022-12-13 18:17:23,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (2 of 62 remaining) [2022-12-13 18:17:23,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (1 of 62 remaining) [2022-12-13 18:17:23,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (0 of 62 remaining) [2022-12-13 18:17:23,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 18:17:23,739 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:17:23,744 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 18:17:23,744 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:17:23,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:17:23 BasicIcfg [2022-12-13 18:17:23,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:17:23,747 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:17:23,747 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:17:23,747 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:17:23,747 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:17:05" (3/4) ... [2022-12-13 18:17:23,749 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 18:17:23,753 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 18:17:23,753 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 18:17:23,757 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-12-13 18:17:23,757 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 18:17:23,757 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 18:17:23,758 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 18:17:23,790 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff4f3cf-4207-4504-9bfd-c8346c79e5cd/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 18:17:23,790 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:17:23,791 INFO L158 Benchmark]: Toolchain (without parser) took 19476.20ms. Allocated memory was 123.7MB in the beginning and 1.1GB in the end (delta: 931.1MB). Free memory was 91.8MB in the beginning and 670.4MB in the end (delta: -578.5MB). Peak memory consumption was 353.1MB. Max. memory is 16.1GB. [2022-12-13 18:17:23,791 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory was 70.7MB in the beginning and 70.6MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:17:23,791 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.76ms. Allocated memory is still 123.7MB. Free memory was 91.8MB in the beginning and 79.9MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 18:17:23,792 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.50ms. Allocated memory is still 123.7MB. Free memory was 79.9MB in the beginning and 77.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:17:23,792 INFO L158 Benchmark]: Boogie Preprocessor took 41.22ms. Allocated memory is still 123.7MB. Free memory was 77.7MB in the beginning and 75.1MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 18:17:23,792 INFO L158 Benchmark]: RCFGBuilder took 531.22ms. Allocated memory is still 123.7MB. Free memory was 75.1MB in the beginning and 48.4MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 18:17:23,792 INFO L158 Benchmark]: TraceAbstraction took 18620.93ms. Allocated memory was 123.7MB in the beginning and 1.1GB in the end (delta: 931.1MB). Free memory was 94.9MB in the beginning and 674.5MB in the end (delta: -579.6MB). Peak memory consumption was 584.4MB. Max. memory is 16.1GB. [2022-12-13 18:17:23,793 INFO L158 Benchmark]: Witness Printer took 43.14ms. Allocated memory is still 1.1GB. Free memory was 674.5MB in the beginning and 670.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 18:17:23,794 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory was 70.7MB in the beginning and 70.6MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.76ms. Allocated memory is still 123.7MB. Free memory was 91.8MB in the beginning and 79.9MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.50ms. Allocated memory is still 123.7MB. Free memory was 79.9MB in the beginning and 77.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.22ms. Allocated memory is still 123.7MB. Free memory was 77.7MB in the beginning and 75.1MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 531.22ms. Allocated memory is still 123.7MB. Free memory was 75.1MB in the beginning and 48.4MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 18620.93ms. Allocated memory was 123.7MB in the beginning and 1.1GB in the end (delta: 931.1MB). Free memory was 94.9MB in the beginning and 674.5MB in the end (delta: -579.6MB). Peak memory consumption was 584.4MB. Max. memory is 16.1GB. * Witness Printer took 43.14ms. Allocated memory is still 1.1GB. Free memory was 674.5MB in the beginning and 670.4MB in the end (delta: 4.2MB). 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: 6.0s, 304 PlacesBefore, 99 PlacesAfterwards, 313 TransitionsBefore, 102 TransitionsAfterwards, 13068 CoEnabledTransitionPairs, 8 FixpointIterations, 161 TrivialSequentialCompositions, 105 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 12 ConcurrentYvCompositions, 6 ChoiceCompositions, 304 TotalNumberOfCompositions, 67600 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17041, independent: 15926, independent conditional: 0, independent unconditional: 15926, dependent: 1115, dependent conditional: 0, dependent unconditional: 1115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7051, independent: 6909, independent conditional: 0, independent unconditional: 6909, dependent: 142, dependent conditional: 0, dependent unconditional: 142, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 17041, independent: 9017, independent conditional: 0, independent unconditional: 9017, dependent: 973, dependent conditional: 0, dependent unconditional: 973, unknown: 7051, unknown conditional: 0, unknown unconditional: 7051] , Statistics on independence cache: Total cache size (in pairs): 979, Positive cache size: 896, Positive conditional cache size: 0, Positive unconditional cache size: 896, Negative cache size: 83, Negative conditional cache size: 0, Negative unconditional cache size: 83, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: 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: 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: 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: 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: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: 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: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: 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: 84]: 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 5 procedures, 445 locations, 62 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: 17, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3071 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2003 mSDsluCounter, 718 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 425 mSDsCounter, 726 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5788 IncrementalHoareTripleChecker+Invalid, 6514 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 726 mSolverCounterUnsat, 293 mSDtfsCounter, 5788 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=449occurred in iteration=14, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 243 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 1037 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 10/10 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 36 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 18:17:23,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff4f3cf-4207-4504-9bfd-c8346c79e5cd/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