./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_4211c38b-b971-458d-8fdd-15e8c22c91e2/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211c38b-b971-458d-8fdd-15e8c22c91e2/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211c38b-b971-458d-8fdd-15e8c22c91e2/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211c38b-b971-458d-8fdd-15e8c22c91e2/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211c38b-b971-458d-8fdd-15e8c22c91e2/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211c38b-b971-458d-8fdd-15e8c22c91e2/bin/uautomizer-vX5HgA9Q3a --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 b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da --- 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-b5237d8 [2022-11-21 16:54:11,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:54:11,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:54:11,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:54:11,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:54:11,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:54:11,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:54:11,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:54:11,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:54:11,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:54:11,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:54:11,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:54:11,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:54:11,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:54:11,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:54:11,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:54:11,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:54:11,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:54:11,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:54:11,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:54:11,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:54:11,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:54:11,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:54:11,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:54:11,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:54:11,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:54:11,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:54:11,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:54:11,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:54:11,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:54:11,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:54:11,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:54:11,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:54:11,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:54:11,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:54:11,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:54:11,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:54:11,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:54:11,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:54:11,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:54:11,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:54:11,591 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211c38b-b971-458d-8fdd-15e8c22c91e2/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 16:54:11,615 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:54:11,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:54:11,616 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:54:11,616 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:54:11,617 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:54:11,617 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:54:11,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:54:11,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:54:11,618 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:54:11,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:54:11,619 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:54:11,619 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:54:11,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:54:11,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:54:11,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:54:11,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:54:11,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:54:11,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:54:11,621 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 16:54:11,621 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:54:11,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:54:11,621 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:54:11,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:54:11,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:54:11,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:54:11,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:54:11,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:54:11,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:54:11,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:54:11,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:54:11,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:54:11,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:54:11,624 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:54:11,624 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:54:11,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:54:11,625 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211c38b-b971-458d-8fdd-15e8c22c91e2/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211c38b-b971-458d-8fdd-15e8c22c91e2/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da [2022-11-21 16:54:11,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:54:11,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:54:11,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:54:11,968 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:54:11,969 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:54:11,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211c38b-b971-458d-8fdd-15e8c22c91e2/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2022-11-21 16:54:15,100 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:54:15,415 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:54:15,416 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211c38b-b971-458d-8fdd-15e8c22c91e2/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2022-11-21 16:54:15,424 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211c38b-b971-458d-8fdd-15e8c22c91e2/bin/uautomizer-vX5HgA9Q3a/data/583744c4e/2b38c77fb5cb4abab1cc66cf4c54a1f8/FLAG025f561e6 [2022-11-21 16:54:15,442 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211c38b-b971-458d-8fdd-15e8c22c91e2/bin/uautomizer-vX5HgA9Q3a/data/583744c4e/2b38c77fb5cb4abab1cc66cf4c54a1f8 [2022-11-21 16:54:15,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:54:15,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:54:15,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:54:15,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:54:15,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:54:15,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:54:15" (1/1) ... [2022-11-21 16:54:15,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32c84f6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:15, skipping insertion in model container [2022-11-21 16:54:15,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:54:15" (1/1) ... [2022-11-21 16:54:15,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:54:15,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:54:15,762 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_4211c38b-b971-458d-8fdd-15e8c22c91e2/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c[2482,2495] [2022-11-21 16:54:15,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:54:15,788 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:54:15,845 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_4211c38b-b971-458d-8fdd-15e8c22c91e2/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c[2482,2495] [2022-11-21 16:54:15,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:54:15,871 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:54:15,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:15 WrapperNode [2022-11-21 16:54:15,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:54:15,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:54:15,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:54:15,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:54:15,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:15" (1/1) ... [2022-11-21 16:54:15,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:15" (1/1) ... [2022-11-21 16:54:15,942 INFO L138 Inliner]: procedures = 25, calls = 39, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 364 [2022-11-21 16:54:15,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:54:15,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:54:15,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:54:15,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:54:15,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:15" (1/1) ... [2022-11-21 16:54:15,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:15" (1/1) ... [2022-11-21 16:54:15,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:15" (1/1) ... [2022-11-21 16:54:15,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:15" (1/1) ... [2022-11-21 16:54:15,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:15" (1/1) ... [2022-11-21 16:54:15,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:15" (1/1) ... [2022-11-21 16:54:15,986 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:15" (1/1) ... [2022-11-21 16:54:15,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:15" (1/1) ... [2022-11-21 16:54:15,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:54:15,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:54:15,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:54:15,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:54:15,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:15" (1/1) ... [2022-11-21 16:54:16,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:54:16,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211c38b-b971-458d-8fdd-15e8c22c91e2/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:54:16,034 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211c38b-b971-458d-8fdd-15e8c22c91e2/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:54:16,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211c38b-b971-458d-8fdd-15e8c22c91e2/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:54:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:54:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:54:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:54:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:54:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-21 16:54:16,084 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-21 16:54:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-21 16:54:16,085 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-21 16:54:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:54:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:54:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:54:16,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:54:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:54:16,088 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:54:16,287 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:54:16,289 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:54:17,075 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:54:17,088 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:54:17,088 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-21 16:54:17,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:54:17 BoogieIcfgContainer [2022-11-21 16:54:17,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:54:17,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:54:17,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:54:17,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:54:17,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:54:15" (1/3) ... [2022-11-21 16:54:17,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b2af641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:54:17, skipping insertion in model container [2022-11-21 16:54:17,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:15" (2/3) ... [2022-11-21 16:54:17,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b2af641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:54:17, skipping insertion in model container [2022-11-21 16:54:17,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:54:17" (3/3) ... [2022-11-21 16:54:17,101 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-array-int-symm.wvr.c [2022-11-21 16:54:17,118 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:54:17,129 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:54:17,130 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-11-21 16:54:17,130 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:54:17,316 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-21 16:54:17,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 453 places, 472 transitions, 960 flow [2022-11-21 16:54:17,713 INFO L130 PetriNetUnfolder]: 26/470 cut-off events. [2022-11-21 16:54:17,713 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 16:54:17,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 470 events. 26/470 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 933 event pairs, 0 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 271. Up to 3 conditions per place. [2022-11-21 16:54:17,728 INFO L82 GeneralOperation]: Start removeDead. Operand has 453 places, 472 transitions, 960 flow [2022-11-21 16:54:17,741 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 432 places, 449 transitions, 910 flow [2022-11-21 16:54:17,758 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:54:17,765 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;@1afa7281, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:54:17,765 INFO L358 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2022-11-21 16:54:17,769 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-11-21 16:54:17,769 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:54:17,769 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:17,770 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] [2022-11-21 16:54:17,772 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:17,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:17,777 INFO L85 PathProgramCache]: Analyzing trace with hash -264134063, now seen corresponding path program 1 times [2022-11-21 16:54:17,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:17,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385519968] [2022-11-21 16:54:17,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:17,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:18,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:54:18,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:18,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385519968] [2022-11-21 16:54:18,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385519968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:18,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:18,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:54:18,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246943380] [2022-11-21 16:54:18,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:18,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:54:18,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:18,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:54:18,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:54:18,125 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 472 [2022-11-21 16:54:18,133 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 449 transitions, 910 flow. Second operand has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:18,133 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:18,134 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 472 [2022-11-21 16:54:18,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:18,658 INFO L130 PetriNetUnfolder]: 96/1752 cut-off events. [2022-11-21 16:54:18,658 INFO L131 PetriNetUnfolder]: For 34/36 co-relation queries the response was YES. [2022-11-21 16:54:18,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1908 conditions, 1752 events. 96/1752 cut-off events. For 34/36 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11513 event pairs, 48 based on Foata normal form. 36/1492 useless extension candidates. Maximal degree in co-relation 1554. Up to 127 conditions per place. [2022-11-21 16:54:18,674 INFO L137 encePairwiseOnDemand]: 455/472 looper letters, 22 selfloop transitions, 2 changer transitions 6/434 dead transitions. [2022-11-21 16:54:18,674 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 434 transitions, 928 flow [2022-11-21 16:54:18,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:54:18,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:54:18,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1332 transitions. [2022-11-21 16:54:18,699 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.940677966101695 [2022-11-21 16:54:18,700 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1332 transitions. [2022-11-21 16:54:18,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1332 transitions. [2022-11-21 16:54:18,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:18,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1332 transitions. [2022-11-21 16:54:18,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 444.0) internal successors, (1332), 3 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:18,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:18,728 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:18,730 INFO L175 Difference]: Start difference. First operand has 432 places, 449 transitions, 910 flow. Second operand 3 states and 1332 transitions. [2022-11-21 16:54:18,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 434 transitions, 928 flow [2022-11-21 16:54:18,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 434 transitions, 920 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:54:18,757 INFO L231 Difference]: Finished difference. Result has 429 places, 428 transitions, 864 flow [2022-11-21 16:54:18,759 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=872, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=864, PETRI_PLACES=429, PETRI_TRANSITIONS=428} [2022-11-21 16:54:18,764 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -3 predicate places. [2022-11-21 16:54:18,765 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 428 transitions, 864 flow [2022-11-21 16:54:18,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:18,766 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:18,767 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:18,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:54:18,767 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:18,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:18,768 INFO L85 PathProgramCache]: Analyzing trace with hash -151250792, now seen corresponding path program 1 times [2022-11-21 16:54:18,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:18,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912449537] [2022-11-21 16:54:18,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:18,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:18,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:54:18,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:18,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912449537] [2022-11-21 16:54:18,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912449537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:18,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:18,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:54:18,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346394701] [2022-11-21 16:54:18,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:18,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:54:18,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:18,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:54:18,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:54:18,842 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 472 [2022-11-21 16:54:18,844 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 428 transitions, 864 flow. Second operand has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:18,844 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:18,844 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 472 [2022-11-21 16:54:18,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:19,293 INFO L130 PetriNetUnfolder]: 101/1740 cut-off events. [2022-11-21 16:54:19,294 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-21 16:54:19,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1885 conditions, 1740 events. 101/1740 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 11345 event pairs, 48 based on Foata normal form. 0/1453 useless extension candidates. Maximal degree in co-relation 1852. Up to 131 conditions per place. [2022-11-21 16:54:19,315 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 22 selfloop transitions, 2 changer transitions 0/427 dead transitions. [2022-11-21 16:54:19,315 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 427 transitions, 910 flow [2022-11-21 16:54:19,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:54:19,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:54:19,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1318 transitions. [2022-11-21 16:54:19,320 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9307909604519774 [2022-11-21 16:54:19,320 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1318 transitions. [2022-11-21 16:54:19,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1318 transitions. [2022-11-21 16:54:19,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:19,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1318 transitions. [2022-11-21 16:54:19,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 439.3333333333333) internal successors, (1318), 3 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:19,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:19,330 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:19,330 INFO L175 Difference]: Start difference. First operand has 429 places, 428 transitions, 864 flow. Second operand 3 states and 1318 transitions. [2022-11-21 16:54:19,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 427 transitions, 910 flow [2022-11-21 16:54:19,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 427 transitions, 906 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:54:19,339 INFO L231 Difference]: Finished difference. Result has 422 places, 427 transitions, 862 flow [2022-11-21 16:54:19,340 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=862, PETRI_PLACES=422, PETRI_TRANSITIONS=427} [2022-11-21 16:54:19,341 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -10 predicate places. [2022-11-21 16:54:19,341 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 427 transitions, 862 flow [2022-11-21 16:54:19,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:19,343 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:19,343 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:19,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:54:19,344 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:19,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:19,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1968287616, now seen corresponding path program 1 times [2022-11-21 16:54:19,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:19,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852393594] [2022-11-21 16:54:19,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:19,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:19,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:54:19,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:19,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852393594] [2022-11-21 16:54:19,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852393594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:19,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:19,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:54:19,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559014636] [2022-11-21 16:54:19,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:19,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:54:19,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:19,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:54:19,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:54:19,461 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 472 [2022-11-21 16:54:19,463 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 427 transitions, 862 flow. Second operand has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:19,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:19,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 472 [2022-11-21 16:54:19,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:19,796 INFO L130 PetriNetUnfolder]: 62/1390 cut-off events. [2022-11-21 16:54:19,796 INFO L131 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2022-11-21 16:54:19,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1470 conditions, 1390 events. 62/1390 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 8182 event pairs, 24 based on Foata normal form. 0/1187 useless extension candidates. Maximal degree in co-relation 1429. Up to 67 conditions per place. [2022-11-21 16:54:19,810 INFO L137 encePairwiseOnDemand]: 466/472 looper letters, 15 selfloop transitions, 1 changer transitions 0/422 dead transitions. [2022-11-21 16:54:19,810 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 422 transitions, 884 flow [2022-11-21 16:54:19,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:54:19,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:54:19,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2022-11-21 16:54:19,815 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.934322033898305 [2022-11-21 16:54:19,816 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2022-11-21 16:54:19,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2022-11-21 16:54:19,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:19,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2022-11-21 16:54:19,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:19,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:19,828 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:19,828 INFO L175 Difference]: Start difference. First operand has 422 places, 427 transitions, 862 flow. Second operand 3 states and 1323 transitions. [2022-11-21 16:54:19,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 422 transitions, 884 flow [2022-11-21 16:54:19,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 422 transitions, 880 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:54:19,839 INFO L231 Difference]: Finished difference. Result has 417 places, 422 transitions, 850 flow [2022-11-21 16:54:19,839 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=850, PETRI_PLACES=417, PETRI_TRANSITIONS=422} [2022-11-21 16:54:19,841 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -15 predicate places. [2022-11-21 16:54:19,841 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 422 transitions, 850 flow [2022-11-21 16:54:19,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:19,843 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:19,843 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:19,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:54:19,843 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:19,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:19,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1772562868, now seen corresponding path program 1 times [2022-11-21 16:54:19,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:19,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519942576] [2022-11-21 16:54:19,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:19,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:19,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:54:19,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:19,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519942576] [2022-11-21 16:54:19,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519942576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:19,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:19,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:54:19,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143595781] [2022-11-21 16:54:19,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:19,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:54:19,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:19,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:54:19,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:54:19,944 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 472 [2022-11-21 16:54:19,946 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 422 transitions, 850 flow. Second operand has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:19,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:19,947 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 472 [2022-11-21 16:54:19,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:20,317 INFO L130 PetriNetUnfolder]: 99/1449 cut-off events. [2022-11-21 16:54:20,317 INFO L131 PetriNetUnfolder]: For 21/22 co-relation queries the response was YES. [2022-11-21 16:54:20,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1604 conditions, 1449 events. 99/1449 cut-off events. For 21/22 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 8505 event pairs, 48 based on Foata normal form. 0/1235 useless extension candidates. Maximal degree in co-relation 1564. Up to 142 conditions per place. [2022-11-21 16:54:20,332 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 19 selfloop transitions, 2 changer transitions 0/421 dead transitions. [2022-11-21 16:54:20,332 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 421 transitions, 890 flow [2022-11-21 16:54:20,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:54:20,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:54:20,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1324 transitions. [2022-11-21 16:54:20,336 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9350282485875706 [2022-11-21 16:54:20,336 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1324 transitions. [2022-11-21 16:54:20,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1324 transitions. [2022-11-21 16:54:20,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:20,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1324 transitions. [2022-11-21 16:54:20,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:20,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:20,350 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:20,350 INFO L175 Difference]: Start difference. First operand has 417 places, 422 transitions, 850 flow. Second operand 3 states and 1324 transitions. [2022-11-21 16:54:20,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 421 transitions, 890 flow [2022-11-21 16:54:20,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 421 transitions, 889 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:54:20,360 INFO L231 Difference]: Finished difference. Result has 417 places, 421 transitions, 851 flow [2022-11-21 16:54:20,361 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=851, PETRI_PLACES=417, PETRI_TRANSITIONS=421} [2022-11-21 16:54:20,362 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -15 predicate places. [2022-11-21 16:54:20,367 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 421 transitions, 851 flow [2022-11-21 16:54:20,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:20,368 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:20,368 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:20,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:54:20,368 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:20,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:20,369 INFO L85 PathProgramCache]: Analyzing trace with hash 740670494, now seen corresponding path program 1 times [2022-11-21 16:54:20,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:20,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753733416] [2022-11-21 16:54:20,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:20,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:21,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:54:21,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:21,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753733416] [2022-11-21 16:54:21,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753733416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:21,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:21,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:54:21,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708738438] [2022-11-21 16:54:21,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:21,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:54:21,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:21,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:54:21,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:54:21,063 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 472 [2022-11-21 16:54:21,067 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 421 transitions, 851 flow. Second operand has 6 states, 6 states have (on average 359.8333333333333) internal successors, (2159), 6 states have internal predecessors, (2159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:21,067 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:21,067 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 472 [2022-11-21 16:54:21,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:27,232 INFO L130 PetriNetUnfolder]: 8692/30576 cut-off events. [2022-11-21 16:54:27,232 INFO L131 PetriNetUnfolder]: For 68/78 co-relation queries the response was YES. [2022-11-21 16:54:27,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43583 conditions, 30576 events. 8692/30576 cut-off events. For 68/78 co-relation queries the response was YES. Maximal size of possible extension queue 619. Compared 354954 event pairs, 7968 based on Foata normal form. 0/25814 useless extension candidates. Maximal degree in co-relation 43544. Up to 12966 conditions per place. [2022-11-21 16:54:27,443 INFO L137 encePairwiseOnDemand]: 460/472 looper letters, 86 selfloop transitions, 10 changer transitions 0/419 dead transitions. [2022-11-21 16:54:27,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 419 transitions, 1039 flow [2022-11-21 16:54:27,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:54:27,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:54:27,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2246 transitions. [2022-11-21 16:54:27,450 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7930790960451978 [2022-11-21 16:54:27,450 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2246 transitions. [2022-11-21 16:54:27,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2246 transitions. [2022-11-21 16:54:27,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:27,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2246 transitions. [2022-11-21 16:54:27,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 374.3333333333333) internal successors, (2246), 6 states have internal predecessors, (2246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:27,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:27,465 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:27,466 INFO L175 Difference]: Start difference. First operand has 417 places, 421 transitions, 851 flow. Second operand 6 states and 2246 transitions. [2022-11-21 16:54:27,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 419 transitions, 1039 flow [2022-11-21 16:54:27,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 419 transitions, 1035 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:54:27,475 INFO L231 Difference]: Finished difference. Result has 418 places, 419 transitions, 863 flow [2022-11-21 16:54:27,476 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=863, PETRI_PLACES=418, PETRI_TRANSITIONS=419} [2022-11-21 16:54:27,480 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -14 predicate places. [2022-11-21 16:54:27,480 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 419 transitions, 863 flow [2022-11-21 16:54:27,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 359.8333333333333) internal successors, (2159), 6 states have internal predecessors, (2159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:27,482 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:27,482 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:27,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:54:27,483 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:27,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:27,484 INFO L85 PathProgramCache]: Analyzing trace with hash 2010384283, now seen corresponding path program 1 times [2022-11-21 16:54:27,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:27,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821440321] [2022-11-21 16:54:27,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:27,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:27,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:54:27,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:27,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821440321] [2022-11-21 16:54:27,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821440321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:27,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:27,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:54:27,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49479965] [2022-11-21 16:54:27,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:27,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:54:27,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:27,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:54:27,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:54:27,558 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 472 [2022-11-21 16:54:27,561 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 419 transitions, 863 flow. Second operand has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:27,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:27,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 472 [2022-11-21 16:54:27,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:27,824 INFO L130 PetriNetUnfolder]: 65/1367 cut-off events. [2022-11-21 16:54:27,824 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-21 16:54:27,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1458 conditions, 1367 events. 65/1367 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 7907 event pairs, 24 based on Foata normal form. 0/1186 useless extension candidates. Maximal degree in co-relation 1425. Up to 69 conditions per place. [2022-11-21 16:54:27,840 INFO L137 encePairwiseOnDemand]: 466/472 looper letters, 15 selfloop transitions, 1 changer transitions 0/414 dead transitions. [2022-11-21 16:54:27,840 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 414 transitions, 885 flow [2022-11-21 16:54:27,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:54:27,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:54:27,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2022-11-21 16:54:27,843 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.934322033898305 [2022-11-21 16:54:27,843 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2022-11-21 16:54:27,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2022-11-21 16:54:27,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:27,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2022-11-21 16:54:27,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:27,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:27,853 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:27,853 INFO L175 Difference]: Start difference. First operand has 418 places, 419 transitions, 863 flow. Second operand 3 states and 1323 transitions. [2022-11-21 16:54:27,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 414 transitions, 885 flow [2022-11-21 16:54:27,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 414 transitions, 865 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:54:27,860 INFO L231 Difference]: Finished difference. Result has 410 places, 414 transitions, 835 flow [2022-11-21 16:54:27,861 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=835, PETRI_PLACES=410, PETRI_TRANSITIONS=414} [2022-11-21 16:54:27,865 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -22 predicate places. [2022-11-21 16:54:27,865 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 414 transitions, 835 flow [2022-11-21 16:54:27,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:27,866 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:27,866 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:27,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:54:27,866 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:27,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:27,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1917793416, now seen corresponding path program 1 times [2022-11-21 16:54:27,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:27,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145784949] [2022-11-21 16:54:27,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:27,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:27,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:27,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:54:27,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:27,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145784949] [2022-11-21 16:54:27,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145784949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:27,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:27,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:54:27,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091038252] [2022-11-21 16:54:27,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:27,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:54:27,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:27,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:54:27,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:54:27,937 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 472 [2022-11-21 16:54:27,939 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 414 transitions, 835 flow. Second operand has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:27,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:27,943 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 472 [2022-11-21 16:54:27,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:28,276 INFO L130 PetriNetUnfolder]: 99/1403 cut-off events. [2022-11-21 16:54:28,277 INFO L131 PetriNetUnfolder]: For 21/22 co-relation queries the response was YES. [2022-11-21 16:54:28,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1559 conditions, 1403 events. 99/1403 cut-off events. For 21/22 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 8239 event pairs, 48 based on Foata normal form. 0/1202 useless extension candidates. Maximal degree in co-relation 1519. Up to 142 conditions per place. [2022-11-21 16:54:28,291 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 19 selfloop transitions, 2 changer transitions 0/413 dead transitions. [2022-11-21 16:54:28,292 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 413 transitions, 875 flow [2022-11-21 16:54:28,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:54:28,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:54:28,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1324 transitions. [2022-11-21 16:54:28,296 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9350282485875706 [2022-11-21 16:54:28,296 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1324 transitions. [2022-11-21 16:54:28,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1324 transitions. [2022-11-21 16:54:28,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:28,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1324 transitions. [2022-11-21 16:54:28,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:28,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:28,306 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:28,306 INFO L175 Difference]: Start difference. First operand has 410 places, 414 transitions, 835 flow. Second operand 3 states and 1324 transitions. [2022-11-21 16:54:28,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 413 transitions, 875 flow [2022-11-21 16:54:28,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 413 transitions, 874 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:54:28,315 INFO L231 Difference]: Finished difference. Result has 410 places, 413 transitions, 836 flow [2022-11-21 16:54:28,316 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=832, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=836, PETRI_PLACES=410, PETRI_TRANSITIONS=413} [2022-11-21 16:54:28,317 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -22 predicate places. [2022-11-21 16:54:28,317 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 413 transitions, 836 flow [2022-11-21 16:54:28,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:28,318 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:28,318 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:28,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:54:28,319 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:28,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:28,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1207247269, now seen corresponding path program 1 times [2022-11-21 16:54:28,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:28,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945350339] [2022-11-21 16:54:28,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:28,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:28,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:54:28,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:28,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945350339] [2022-11-21 16:54:28,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945350339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:28,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:28,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:54:28,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220782589] [2022-11-21 16:54:28,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:28,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:54:28,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:28,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:54:28,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:54:28,382 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 472 [2022-11-21 16:54:28,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 413 transitions, 836 flow. Second operand has 3 states, 3 states have (on average 436.3333333333333) internal successors, (1309), 3 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:28,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:28,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 472 [2022-11-21 16:54:28,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:28,526 INFO L130 PetriNetUnfolder]: 23/635 cut-off events. [2022-11-21 16:54:28,527 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 16:54:28,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 685 conditions, 635 events. 23/635 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2175 event pairs, 5 based on Foata normal form. 0/564 useless extension candidates. Maximal degree in co-relation 646. Up to 29 conditions per place. [2022-11-21 16:54:28,533 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 19 selfloop transitions, 2 changer transitions 0/413 dead transitions. [2022-11-21 16:54:28,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 413 transitions, 879 flow [2022-11-21 16:54:28,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:54:28,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:54:28,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1327 transitions. [2022-11-21 16:54:28,538 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9371468926553672 [2022-11-21 16:54:28,538 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1327 transitions. [2022-11-21 16:54:28,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1327 transitions. [2022-11-21 16:54:28,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:28,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1327 transitions. [2022-11-21 16:54:28,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 442.3333333333333) internal successors, (1327), 3 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:28,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:28,547 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:28,547 INFO L175 Difference]: Start difference. First operand has 410 places, 413 transitions, 836 flow. Second operand 3 states and 1327 transitions. [2022-11-21 16:54:28,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 413 transitions, 879 flow [2022-11-21 16:54:28,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 413 transitions, 875 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:54:28,561 INFO L231 Difference]: Finished difference. Result has 409 places, 412 transitions, 834 flow [2022-11-21 16:54:28,562 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=834, PETRI_PLACES=409, PETRI_TRANSITIONS=412} [2022-11-21 16:54:28,565 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -23 predicate places. [2022-11-21 16:54:28,565 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 412 transitions, 834 flow [2022-11-21 16:54:28,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.3333333333333) internal successors, (1309), 3 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:28,574 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:28,574 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:28,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:54:28,574 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:28,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:28,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1544809514, now seen corresponding path program 1 times [2022-11-21 16:54:28,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:28,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122164093] [2022-11-21 16:54:28,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:28,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:29,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:54:29,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:29,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122164093] [2022-11-21 16:54:29,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122164093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:29,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:29,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:54:29,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029502001] [2022-11-21 16:54:29,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:29,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:54:29,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:29,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:54:29,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:54:29,116 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 472 [2022-11-21 16:54:29,119 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 412 transitions, 834 flow. Second operand has 6 states, 6 states have (on average 375.8333333333333) internal successors, (2255), 6 states have internal predecessors, (2255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:29,119 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:29,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 472 [2022-11-21 16:54:29,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:32,891 INFO L130 PetriNetUnfolder]: 8510/20674 cut-off events. [2022-11-21 16:54:32,891 INFO L131 PetriNetUnfolder]: For 31/398 co-relation queries the response was YES. [2022-11-21 16:54:33,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33659 conditions, 20674 events. 8510/20674 cut-off events. For 31/398 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 195450 event pairs, 2376 based on Foata normal form. 73/18055 useless extension candidates. Maximal degree in co-relation 33618. Up to 4141 conditions per place. [2022-11-21 16:54:33,245 INFO L137 encePairwiseOnDemand]: 467/472 looper letters, 265 selfloop transitions, 4 changer transitions 0/603 dead transitions. [2022-11-21 16:54:33,245 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 603 transitions, 1754 flow [2022-11-21 16:54:33,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:54:33,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:54:33,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2514 transitions. [2022-11-21 16:54:33,251 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8877118644067796 [2022-11-21 16:54:33,251 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2514 transitions. [2022-11-21 16:54:33,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2514 transitions. [2022-11-21 16:54:33,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:33,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2514 transitions. [2022-11-21 16:54:33,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 419.0) internal successors, (2514), 6 states have internal predecessors, (2514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:33,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:33,264 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:33,264 INFO L175 Difference]: Start difference. First operand has 409 places, 412 transitions, 834 flow. Second operand 6 states and 2514 transitions. [2022-11-21 16:54:33,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 603 transitions, 1754 flow [2022-11-21 16:54:33,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 603 transitions, 1750 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:54:33,275 INFO L231 Difference]: Finished difference. Result has 411 places, 411 transitions, 836 flow [2022-11-21 16:54:33,276 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=828, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=836, PETRI_PLACES=411, PETRI_TRANSITIONS=411} [2022-11-21 16:54:33,278 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -21 predicate places. [2022-11-21 16:54:33,278 INFO L495 AbstractCegarLoop]: Abstraction has has 411 places, 411 transitions, 836 flow [2022-11-21 16:54:33,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 375.8333333333333) internal successors, (2255), 6 states have internal predecessors, (2255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:33,279 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:33,279 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:33,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:54:33,280 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:33,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:33,280 INFO L85 PathProgramCache]: Analyzing trace with hash 340040794, now seen corresponding path program 1 times [2022-11-21 16:54:33,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:33,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480658988] [2022-11-21 16:54:33,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:33,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:33,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:54:33,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:33,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480658988] [2022-11-21 16:54:33,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480658988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:33,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:33,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:54:33,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772533156] [2022-11-21 16:54:33,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:33,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:54:33,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:33,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:54:33,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:54:33,345 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 472 [2022-11-21 16:54:33,347 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 411 transitions, 836 flow. Second operand has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:33,347 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:33,347 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 472 [2022-11-21 16:54:33,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:33,438 INFO L130 PetriNetUnfolder]: 20/525 cut-off events. [2022-11-21 16:54:33,438 INFO L131 PetriNetUnfolder]: For 9/10 co-relation queries the response was YES. [2022-11-21 16:54:33,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 525 events. 20/525 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1545 event pairs, 2 based on Foata normal form. 0/469 useless extension candidates. Maximal degree in co-relation 530. Up to 28 conditions per place. [2022-11-21 16:54:33,443 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 18 selfloop transitions, 2 changer transitions 0/411 dead transitions. [2022-11-21 16:54:33,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 411 transitions, 877 flow [2022-11-21 16:54:33,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:54:33,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:54:33,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1326 transitions. [2022-11-21 16:54:33,448 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9364406779661016 [2022-11-21 16:54:33,448 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1326 transitions. [2022-11-21 16:54:33,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1326 transitions. [2022-11-21 16:54:33,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:33,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1326 transitions. [2022-11-21 16:54:33,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 442.0) internal successors, (1326), 3 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:33,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:33,455 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:33,455 INFO L175 Difference]: Start difference. First operand has 411 places, 411 transitions, 836 flow. Second operand 3 states and 1326 transitions. [2022-11-21 16:54:33,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 411 transitions, 877 flow [2022-11-21 16:54:33,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 411 transitions, 870 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:54:33,462 INFO L231 Difference]: Finished difference. Result has 408 places, 410 transitions, 831 flow [2022-11-21 16:54:33,464 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=827, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=831, PETRI_PLACES=408, PETRI_TRANSITIONS=410} [2022-11-21 16:54:33,464 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -24 predicate places. [2022-11-21 16:54:33,465 INFO L495 AbstractCegarLoop]: Abstraction has has 408 places, 410 transitions, 831 flow [2022-11-21 16:54:33,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:33,466 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:33,466 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:33,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:54:33,466 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:33,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:33,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1070296566, now seen corresponding path program 1 times [2022-11-21 16:54:33,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:33,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86746902] [2022-11-21 16:54:33,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:33,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:33,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:54:33,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:33,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86746902] [2022-11-21 16:54:33,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86746902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:33,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:33,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:54:33,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181520787] [2022-11-21 16:54:33,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:33,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:54:33,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:33,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:54:33,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:54:33,528 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 472 [2022-11-21 16:54:33,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 410 transitions, 831 flow. Second operand has 3 states, 3 states have (on average 445.6666666666667) internal successors, (1337), 3 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:33,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:33,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 472 [2022-11-21 16:54:33,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:33,827 INFO L130 PetriNetUnfolder]: 24/631 cut-off events. [2022-11-21 16:54:33,828 INFO L131 PetriNetUnfolder]: For 2/9 co-relation queries the response was YES. [2022-11-21 16:54:33,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 683 conditions, 631 events. 24/631 cut-off events. For 2/9 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2096 event pairs, 6 based on Foata normal form. 1/565 useless extension candidates. Maximal degree in co-relation 644. Up to 24 conditions per place. [2022-11-21 16:54:33,833 INFO L137 encePairwiseOnDemand]: 468/472 looper letters, 11 selfloop transitions, 3 changer transitions 0/412 dead transitions. [2022-11-21 16:54:33,833 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 412 transitions, 864 flow [2022-11-21 16:54:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:54:33,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:54:33,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1347 transitions. [2022-11-21 16:54:33,837 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.951271186440678 [2022-11-21 16:54:33,837 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1347 transitions. [2022-11-21 16:54:33,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1347 transitions. [2022-11-21 16:54:33,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:33,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1347 transitions. [2022-11-21 16:54:33,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 449.0) internal successors, (1347), 3 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:33,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:33,844 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:33,844 INFO L175 Difference]: Start difference. First operand has 408 places, 410 transitions, 831 flow. Second operand 3 states and 1347 transitions. [2022-11-21 16:54:33,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 412 transitions, 864 flow [2022-11-21 16:54:33,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 412 transitions, 860 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:54:33,852 INFO L231 Difference]: Finished difference. Result has 410 places, 411 transitions, 845 flow [2022-11-21 16:54:33,852 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=827, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=845, PETRI_PLACES=410, PETRI_TRANSITIONS=411} [2022-11-21 16:54:33,853 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -22 predicate places. [2022-11-21 16:54:33,853 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 411 transitions, 845 flow [2022-11-21 16:54:33,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 445.6666666666667) internal successors, (1337), 3 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:33,854 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:33,854 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:33,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:54:33,855 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:33,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:33,855 INFO L85 PathProgramCache]: Analyzing trace with hash 87623946, now seen corresponding path program 1 times [2022-11-21 16:54:33,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:33,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653612669] [2022-11-21 16:54:33,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:33,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:33,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:54:33,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:33,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653612669] [2022-11-21 16:54:33,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653612669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:33,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:33,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:54:33,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882563799] [2022-11-21 16:54:33,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:33,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:54:33,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:33,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:54:33,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:54:33,910 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 472 [2022-11-21 16:54:33,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 411 transitions, 845 flow. Second operand has 3 states, 3 states have (on average 438.6666666666667) internal successors, (1316), 3 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:33,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:33,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 472 [2022-11-21 16:54:33,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:34,113 INFO L130 PetriNetUnfolder]: 69/1245 cut-off events. [2022-11-21 16:54:34,113 INFO L131 PetriNetUnfolder]: For 24/25 co-relation queries the response was YES. [2022-11-21 16:54:34,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1375 conditions, 1245 events. 69/1245 cut-off events. For 24/25 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6846 event pairs, 12 based on Foata normal form. 0/1109 useless extension candidates. Maximal degree in co-relation 1335. Up to 79 conditions per place. [2022-11-21 16:54:34,123 INFO L137 encePairwiseOnDemand]: 466/472 looper letters, 17 selfloop transitions, 2 changer transitions 0/412 dead transitions. [2022-11-21 16:54:34,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 412 transitions, 888 flow [2022-11-21 16:54:34,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:54:34,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:54:34,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1334 transitions. [2022-11-21 16:54:34,127 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.942090395480226 [2022-11-21 16:54:34,128 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1334 transitions. [2022-11-21 16:54:34,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1334 transitions. [2022-11-21 16:54:34,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:34,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1334 transitions. [2022-11-21 16:54:34,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 444.6666666666667) internal successors, (1334), 3 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:34,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:34,136 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:34,136 INFO L175 Difference]: Start difference. First operand has 410 places, 411 transitions, 845 flow. Second operand 3 states and 1334 transitions. [2022-11-21 16:54:34,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 412 transitions, 888 flow [2022-11-21 16:54:34,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 412 transitions, 882 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:54:34,145 INFO L231 Difference]: Finished difference. Result has 407 places, 409 transitions, 845 flow [2022-11-21 16:54:34,146 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=845, PETRI_PLACES=407, PETRI_TRANSITIONS=409} [2022-11-21 16:54:34,147 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -25 predicate places. [2022-11-21 16:54:34,147 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 409 transitions, 845 flow [2022-11-21 16:54:34,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 438.6666666666667) internal successors, (1316), 3 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:34,148 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:34,148 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:34,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:54:34,149 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:34,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:34,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1303592878, now seen corresponding path program 1 times [2022-11-21 16:54:34,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:34,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963694453] [2022-11-21 16:54:34,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:34,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:34,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:54:34,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:34,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963694453] [2022-11-21 16:54:34,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963694453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:34,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:34,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:54:34,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086646903] [2022-11-21 16:54:34,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:34,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:54:34,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:34,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:54:34,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:54:34,427 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 472 [2022-11-21 16:54:34,430 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 409 transitions, 845 flow. Second operand has 8 states, 8 states have (on average 376.0) internal successors, (3008), 8 states have internal predecessors, (3008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:34,430 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:34,430 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 472 [2022-11-21 16:54:34,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:34,966 INFO L130 PetriNetUnfolder]: 269/1757 cut-off events. [2022-11-21 16:54:34,966 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-21 16:54:34,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2493 conditions, 1757 events. 269/1757 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 11070 event pairs, 149 based on Foata normal form. 5/1595 useless extension candidates. Maximal degree in co-relation 2451. Up to 428 conditions per place. [2022-11-21 16:54:34,982 INFO L137 encePairwiseOnDemand]: 457/472 looper letters, 114 selfloop transitions, 17 changer transitions 0/457 dead transitions. [2022-11-21 16:54:34,982 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 457 transitions, 1216 flow [2022-11-21 16:54:34,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:54:34,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-21 16:54:34,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4596 transitions. [2022-11-21 16:54:34,992 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8114406779661016 [2022-11-21 16:54:34,992 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4596 transitions. [2022-11-21 16:54:34,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4596 transitions. [2022-11-21 16:54:34,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:34,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4596 transitions. [2022-11-21 16:54:35,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 383.0) internal successors, (4596), 12 states have internal predecessors, (4596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:35,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 472.0) internal successors, (6136), 13 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:35,016 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 472.0) internal successors, (6136), 13 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:35,016 INFO L175 Difference]: Start difference. First operand has 407 places, 409 transitions, 845 flow. Second operand 12 states and 4596 transitions. [2022-11-21 16:54:35,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 457 transitions, 1216 flow [2022-11-21 16:54:35,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 457 transitions, 1216 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:54:35,025 INFO L231 Difference]: Finished difference. Result has 423 places, 417 transitions, 930 flow [2022-11-21 16:54:35,026 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=845, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=930, PETRI_PLACES=423, PETRI_TRANSITIONS=417} [2022-11-21 16:54:35,027 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -9 predicate places. [2022-11-21 16:54:35,027 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 417 transitions, 930 flow [2022-11-21 16:54:35,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 376.0) internal successors, (3008), 8 states have internal predecessors, (3008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:35,029 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:35,029 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:35,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:54:35,030 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:35,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:35,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1689111661, now seen corresponding path program 1 times [2022-11-21 16:54:35,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:35,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787897467] [2022-11-21 16:54:35,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:35,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:35,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:54:35,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:35,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787897467] [2022-11-21 16:54:35,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787897467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:35,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:35,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:54:35,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147314441] [2022-11-21 16:54:35,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:35,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:54:35,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:35,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:54:35,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:54:35,108 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 472 [2022-11-21 16:54:35,109 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 417 transitions, 930 flow. Second operand has 3 states, 3 states have (on average 446.0) internal successors, (1338), 3 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:35,110 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:35,110 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 472 [2022-11-21 16:54:35,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:35,337 INFO L130 PetriNetUnfolder]: 86/1196 cut-off events. [2022-11-21 16:54:35,338 INFO L131 PetriNetUnfolder]: For 74/91 co-relation queries the response was YES. [2022-11-21 16:54:35,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1431 conditions, 1196 events. 86/1196 cut-off events. For 74/91 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6492 event pairs, 24 based on Foata normal form. 2/1072 useless extension candidates. Maximal degree in co-relation 1382. Up to 98 conditions per place. [2022-11-21 16:54:35,346 INFO L137 encePairwiseOnDemand]: 468/472 looper letters, 11 selfloop transitions, 3 changer transitions 0/419 dead transitions. [2022-11-21 16:54:35,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 419 transitions, 963 flow [2022-11-21 16:54:35,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:54:35,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:54:35,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1347 transitions. [2022-11-21 16:54:35,351 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.951271186440678 [2022-11-21 16:54:35,351 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1347 transitions. [2022-11-21 16:54:35,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1347 transitions. [2022-11-21 16:54:35,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:35,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1347 transitions. [2022-11-21 16:54:35,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 449.0) internal successors, (1347), 3 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:35,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:35,360 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:35,361 INFO L175 Difference]: Start difference. First operand has 423 places, 417 transitions, 930 flow. Second operand 3 states and 1347 transitions. [2022-11-21 16:54:35,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 419 transitions, 963 flow [2022-11-21 16:54:35,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 419 transitions, 961 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:54:35,371 INFO L231 Difference]: Finished difference. Result has 426 places, 418 transitions, 946 flow [2022-11-21 16:54:35,372 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=928, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=946, PETRI_PLACES=426, PETRI_TRANSITIONS=418} [2022-11-21 16:54:35,372 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -6 predicate places. [2022-11-21 16:54:35,373 INFO L495 AbstractCegarLoop]: Abstraction has has 426 places, 418 transitions, 946 flow [2022-11-21 16:54:35,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 446.0) internal successors, (1338), 3 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:35,374 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:35,374 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:35,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:54:35,374 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:35,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:35,375 INFO L85 PathProgramCache]: Analyzing trace with hash -287089619, now seen corresponding path program 1 times [2022-11-21 16:54:35,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:35,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724680398] [2022-11-21 16:54:35,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:35,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:35,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:35,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:54:35,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:35,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724680398] [2022-11-21 16:54:35,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724680398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:35,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:35,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:54:35,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547285459] [2022-11-21 16:54:35,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:35,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:54:35,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:35,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:54:35,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:54:35,637 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 472 [2022-11-21 16:54:35,641 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 418 transitions, 946 flow. Second operand has 8 states, 8 states have (on average 376.125) internal successors, (3009), 8 states have internal predecessors, (3009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:35,641 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:35,642 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 472 [2022-11-21 16:54:35,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:36,181 INFO L130 PetriNetUnfolder]: 256/1548 cut-off events. [2022-11-21 16:54:36,181 INFO L131 PetriNetUnfolder]: For 244/244 co-relation queries the response was YES. [2022-11-21 16:54:36,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2445 conditions, 1548 events. 256/1548 cut-off events. For 244/244 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 9562 event pairs, 141 based on Foata normal form. 4/1441 useless extension candidates. Maximal degree in co-relation 2392. Up to 427 conditions per place. [2022-11-21 16:54:36,193 INFO L137 encePairwiseOnDemand]: 457/472 looper letters, 114 selfloop transitions, 17 changer transitions 0/461 dead transitions. [2022-11-21 16:54:36,194 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 461 transitions, 1321 flow [2022-11-21 16:54:36,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:54:36,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-21 16:54:36,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4596 transitions. [2022-11-21 16:54:36,206 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8114406779661016 [2022-11-21 16:54:36,206 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4596 transitions. [2022-11-21 16:54:36,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4596 transitions. [2022-11-21 16:54:36,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:36,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4596 transitions. [2022-11-21 16:54:36,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 383.0) internal successors, (4596), 12 states have internal predecessors, (4596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:36,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 472.0) internal successors, (6136), 13 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:36,235 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 472.0) internal successors, (6136), 13 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:36,235 INFO L175 Difference]: Start difference. First operand has 426 places, 418 transitions, 946 flow. Second operand 12 states and 4596 transitions. [2022-11-21 16:54:36,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 461 transitions, 1321 flow [2022-11-21 16:54:36,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 461 transitions, 1311 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:54:36,248 INFO L231 Difference]: Finished difference. Result has 439 places, 422 transitions, 1010 flow [2022-11-21 16:54:36,249 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=940, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1010, PETRI_PLACES=439, PETRI_TRANSITIONS=422} [2022-11-21 16:54:36,249 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 7 predicate places. [2022-11-21 16:54:36,249 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 422 transitions, 1010 flow [2022-11-21 16:54:36,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 376.125) internal successors, (3009), 8 states have internal predecessors, (3009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:36,251 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:36,251 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:36,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 16:54:36,251 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:36,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:36,252 INFO L85 PathProgramCache]: Analyzing trace with hash 671563270, now seen corresponding path program 1 times [2022-11-21 16:54:36,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:36,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636502126] [2022-11-21 16:54:36,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:36,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:36,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:54:36,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:36,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636502126] [2022-11-21 16:54:36,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636502126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:36,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:36,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:54:36,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432899814] [2022-11-21 16:54:36,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:36,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:54:36,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:36,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:54:36,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:54:36,842 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 472 [2022-11-21 16:54:36,845 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 422 transitions, 1010 flow. Second operand has 6 states, 6 states have (on average 376.8333333333333) internal successors, (2261), 6 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:36,845 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:36,846 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 472 [2022-11-21 16:54:36,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:42,201 INFO L130 PetriNetUnfolder]: 7493/26580 cut-off events. [2022-11-21 16:54:42,201 INFO L131 PetriNetUnfolder]: For 539/558 co-relation queries the response was YES. [2022-11-21 16:54:42,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40522 conditions, 26580 events. 7493/26580 cut-off events. For 539/558 co-relation queries the response was YES. Maximal size of possible extension queue 485. Compared 296897 event pairs, 6797 based on Foata normal form. 4/23753 useless extension candidates. Maximal degree in co-relation 40462. Up to 11026 conditions per place. [2022-11-21 16:54:42,364 INFO L137 encePairwiseOnDemand]: 467/472 looper letters, 168 selfloop transitions, 4 changer transitions 0/517 dead transitions. [2022-11-21 16:54:42,365 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 517 transitions, 1544 flow [2022-11-21 16:54:42,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:54:42,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:54:42,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2417 transitions. [2022-11-21 16:54:42,370 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8534604519774012 [2022-11-21 16:54:42,370 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2417 transitions. [2022-11-21 16:54:42,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2417 transitions. [2022-11-21 16:54:42,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:42,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2417 transitions. [2022-11-21 16:54:42,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 402.8333333333333) internal successors, (2417), 6 states have internal predecessors, (2417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:42,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:42,383 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:42,383 INFO L175 Difference]: Start difference. First operand has 439 places, 422 transitions, 1010 flow. Second operand 6 states and 2417 transitions. [2022-11-21 16:54:42,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 517 transitions, 1544 flow [2022-11-21 16:54:42,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 517 transitions, 1529 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-21 16:54:42,417 INFO L231 Difference]: Finished difference. Result has 437 places, 421 transitions, 1001 flow [2022-11-21 16:54:42,418 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=993, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1001, PETRI_PLACES=437, PETRI_TRANSITIONS=421} [2022-11-21 16:54:42,418 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 5 predicate places. [2022-11-21 16:54:42,419 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 421 transitions, 1001 flow [2022-11-21 16:54:42,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 376.8333333333333) internal successors, (2261), 6 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:42,420 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:42,420 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:42,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 16:54:42,420 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:42,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:42,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1171973006, now seen corresponding path program 1 times [2022-11-21 16:54:42,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:42,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154884740] [2022-11-21 16:54:42,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:42,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:42,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 16:54:42,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:42,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154884740] [2022-11-21 16:54:42,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154884740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:42,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:42,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:54:42,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743175357] [2022-11-21 16:54:42,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:42,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:54:42,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:42,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:54:42,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:54:42,637 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 472 [2022-11-21 16:54:42,639 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 421 transitions, 1001 flow. Second operand has 8 states, 8 states have (on average 377.125) internal successors, (3017), 8 states have internal predecessors, (3017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:42,640 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:42,640 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 472 [2022-11-21 16:54:42,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:43,276 INFO L130 PetriNetUnfolder]: 310/2047 cut-off events. [2022-11-21 16:54:43,277 INFO L131 PetriNetUnfolder]: For 184/184 co-relation queries the response was YES. [2022-11-21 16:54:43,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3256 conditions, 2047 events. 310/2047 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 13680 event pairs, 163 based on Foata normal form. 5/1904 useless extension candidates. Maximal degree in co-relation 3195. Up to 522 conditions per place. [2022-11-21 16:54:43,296 INFO L137 encePairwiseOnDemand]: 460/472 looper letters, 111 selfloop transitions, 15 changer transitions 0/456 dead transitions. [2022-11-21 16:54:43,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 456 transitions, 1370 flow [2022-11-21 16:54:43,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:54:43,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-21 16:54:43,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3461 transitions. [2022-11-21 16:54:43,303 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8147363465160076 [2022-11-21 16:54:43,304 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3461 transitions. [2022-11-21 16:54:43,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3461 transitions. [2022-11-21 16:54:43,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:43,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3461 transitions. [2022-11-21 16:54:43,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 384.55555555555554) internal successors, (3461), 9 states have internal predecessors, (3461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:43,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 472.0) internal successors, (4720), 10 states have internal predecessors, (4720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:43,422 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 472.0) internal successors, (4720), 10 states have internal predecessors, (4720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:43,422 INFO L175 Difference]: Start difference. First operand has 437 places, 421 transitions, 1001 flow. Second operand 9 states and 3461 transitions. [2022-11-21 16:54:43,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 456 transitions, 1370 flow [2022-11-21 16:54:43,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 456 transitions, 1363 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:54:43,431 INFO L231 Difference]: Finished difference. Result has 445 places, 430 transitions, 1106 flow [2022-11-21 16:54:43,432 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=994, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1106, PETRI_PLACES=445, PETRI_TRANSITIONS=430} [2022-11-21 16:54:43,432 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 13 predicate places. [2022-11-21 16:54:43,433 INFO L495 AbstractCegarLoop]: Abstraction has has 445 places, 430 transitions, 1106 flow [2022-11-21 16:54:43,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 377.125) internal successors, (3017), 8 states have internal predecessors, (3017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:43,434 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:43,434 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:43,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 16:54:43,434 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:43,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:43,435 INFO L85 PathProgramCache]: Analyzing trace with hash -574253583, now seen corresponding path program 1 times [2022-11-21 16:54:43,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:43,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787044885] [2022-11-21 16:54:43,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:43,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:43,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 16:54:43,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:43,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787044885] [2022-11-21 16:54:43,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787044885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:43,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:43,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:54:43,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990231982] [2022-11-21 16:54:43,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:43,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:54:43,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:43,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:54:43,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:54:43,647 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 472 [2022-11-21 16:54:43,650 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 430 transitions, 1106 flow. Second operand has 8 states, 8 states have (on average 377.25) internal successors, (3018), 8 states have internal predecessors, (3018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:43,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:43,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 472 [2022-11-21 16:54:43,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:44,170 INFO L130 PetriNetUnfolder]: 344/2007 cut-off events. [2022-11-21 16:54:44,171 INFO L131 PetriNetUnfolder]: For 518/613 co-relation queries the response was YES. [2022-11-21 16:54:44,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3331 conditions, 2007 events. 344/2007 cut-off events. For 518/613 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 13764 event pairs, 151 based on Foata normal form. 10/1871 useless extension candidates. Maximal degree in co-relation 3264. Up to 508 conditions per place. [2022-11-21 16:54:44,182 INFO L137 encePairwiseOnDemand]: 459/472 looper letters, 109 selfloop transitions, 20 changer transitions 0/465 dead transitions. [2022-11-21 16:54:44,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 465 transitions, 1492 flow [2022-11-21 16:54:44,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 16:54:44,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 16:54:44,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3837 transitions. [2022-11-21 16:54:44,190 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8129237288135593 [2022-11-21 16:54:44,190 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3837 transitions. [2022-11-21 16:54:44,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3837 transitions. [2022-11-21 16:54:44,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:44,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3837 transitions. [2022-11-21 16:54:44,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 383.7) internal successors, (3837), 10 states have internal predecessors, (3837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:44,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 472.0) internal successors, (5192), 11 states have internal predecessors, (5192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:44,206 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 472.0) internal successors, (5192), 11 states have internal predecessors, (5192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:44,206 INFO L175 Difference]: Start difference. First operand has 445 places, 430 transitions, 1106 flow. Second operand 10 states and 3837 transitions. [2022-11-21 16:54:44,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 465 transitions, 1492 flow [2022-11-21 16:54:44,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 465 transitions, 1480 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:54:44,217 INFO L231 Difference]: Finished difference. Result has 454 places, 438 transitions, 1214 flow [2022-11-21 16:54:44,218 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1094, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1214, PETRI_PLACES=454, PETRI_TRANSITIONS=438} [2022-11-21 16:54:44,218 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 22 predicate places. [2022-11-21 16:54:44,218 INFO L495 AbstractCegarLoop]: Abstraction has has 454 places, 438 transitions, 1214 flow [2022-11-21 16:54:44,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 377.25) internal successors, (3018), 8 states have internal predecessors, (3018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:44,219 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:44,220 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:44,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 16:54:44,220 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:44,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:44,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1447355507, now seen corresponding path program 1 times [2022-11-21 16:54:44,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:44,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819169613] [2022-11-21 16:54:44,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:44,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:44,805 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 16:54:44,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:44,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819169613] [2022-11-21 16:54:44,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819169613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:44,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:44,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:54:44,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470810361] [2022-11-21 16:54:44,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:44,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:54:44,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:44,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:54:44,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:54:44,811 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 472 [2022-11-21 16:54:44,814 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 438 transitions, 1214 flow. Second operand has 6 states, 6 states have (on average 370.6666666666667) internal successors, (2224), 6 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:44,814 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:44,814 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 472 [2022-11-21 16:54:44,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:50,540 INFO L130 PetriNetUnfolder]: 10085/28442 cut-off events. [2022-11-21 16:54:50,540 INFO L131 PetriNetUnfolder]: For 2152/2294 co-relation queries the response was YES. [2022-11-21 16:54:50,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47604 conditions, 28442 events. 10085/28442 cut-off events. For 2152/2294 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 287180 event pairs, 1930 based on Foata normal form. 0/25746 useless extension candidates. Maximal degree in co-relation 47534. Up to 10929 conditions per place. [2022-11-21 16:54:50,748 INFO L137 encePairwiseOnDemand]: 465/472 looper letters, 218 selfloop transitions, 5 changer transitions 0/571 dead transitions. [2022-11-21 16:54:50,748 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 571 transitions, 1937 flow [2022-11-21 16:54:50,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:54:50,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:54:50,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2422 transitions. [2022-11-21 16:54:50,755 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.855225988700565 [2022-11-21 16:54:50,755 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2422 transitions. [2022-11-21 16:54:50,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2422 transitions. [2022-11-21 16:54:50,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:50,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2422 transitions. [2022-11-21 16:54:50,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 403.6666666666667) internal successors, (2422), 6 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:50,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:50,766 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:50,766 INFO L175 Difference]: Start difference. First operand has 454 places, 438 transitions, 1214 flow. Second operand 6 states and 2422 transitions. [2022-11-21 16:54:50,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 571 transitions, 1937 flow [2022-11-21 16:54:50,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 571 transitions, 1925 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:54:50,790 INFO L231 Difference]: Finished difference. Result has 453 places, 436 transitions, 1208 flow [2022-11-21 16:54:50,791 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1198, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1208, PETRI_PLACES=453, PETRI_TRANSITIONS=436} [2022-11-21 16:54:50,791 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 21 predicate places. [2022-11-21 16:54:50,791 INFO L495 AbstractCegarLoop]: Abstraction has has 453 places, 436 transitions, 1208 flow [2022-11-21 16:54:50,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 370.6666666666667) internal successors, (2224), 6 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:50,792 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:50,792 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:50,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-21 16:54:50,793 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:50,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:50,793 INFO L85 PathProgramCache]: Analyzing trace with hash 660797583, now seen corresponding path program 1 times [2022-11-21 16:54:50,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:50,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181446152] [2022-11-21 16:54:50,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:50,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:50,850 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 16:54:50,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:50,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181446152] [2022-11-21 16:54:50,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181446152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:50,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:50,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:54:50,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111951411] [2022-11-21 16:54:50,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:50,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:54:50,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:50,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:54:50,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:54:50,853 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 472 [2022-11-21 16:54:50,855 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 436 transitions, 1208 flow. Second operand has 3 states, 3 states have (on average 438.6666666666667) internal successors, (1316), 3 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:50,855 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:50,855 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 472 [2022-11-21 16:54:50,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:51,342 INFO L130 PetriNetUnfolder]: 85/1854 cut-off events. [2022-11-21 16:54:51,342 INFO L131 PetriNetUnfolder]: For 274/278 co-relation queries the response was YES. [2022-11-21 16:54:51,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2398 conditions, 1854 events. 85/1854 cut-off events. For 274/278 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10861 event pairs, 17 based on Foata normal form. 0/1720 useless extension candidates. Maximal degree in co-relation 2331. Up to 89 conditions per place. [2022-11-21 16:54:51,355 INFO L137 encePairwiseOnDemand]: 466/472 looper letters, 17 selfloop transitions, 2 changer transitions 0/437 dead transitions. [2022-11-21 16:54:51,356 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 437 transitions, 1251 flow [2022-11-21 16:54:51,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:54:51,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:54:51,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1334 transitions. [2022-11-21 16:54:51,360 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.942090395480226 [2022-11-21 16:54:51,360 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1334 transitions. [2022-11-21 16:54:51,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1334 transitions. [2022-11-21 16:54:51,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:51,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1334 transitions. [2022-11-21 16:54:51,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 444.6666666666667) internal successors, (1334), 3 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:51,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:51,366 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:51,366 INFO L175 Difference]: Start difference. First operand has 453 places, 436 transitions, 1208 flow. Second operand 3 states and 1334 transitions. [2022-11-21 16:54:51,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 437 transitions, 1251 flow [2022-11-21 16:54:51,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 437 transitions, 1241 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:54:51,376 INFO L231 Difference]: Finished difference. Result has 447 places, 434 transitions, 1204 flow [2022-11-21 16:54:51,376 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1190, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1204, PETRI_PLACES=447, PETRI_TRANSITIONS=434} [2022-11-21 16:54:51,377 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 15 predicate places. [2022-11-21 16:54:51,377 INFO L495 AbstractCegarLoop]: Abstraction has has 447 places, 434 transitions, 1204 flow [2022-11-21 16:54:51,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 438.6666666666667) internal successors, (1316), 3 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:51,377 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:51,378 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:51,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-21 16:54:51,378 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:51,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:51,378 INFO L85 PathProgramCache]: Analyzing trace with hash -219638580, now seen corresponding path program 1 times [2022-11-21 16:54:51,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:51,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478956199] [2022-11-21 16:54:51,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:51,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:51,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 16:54:51,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:51,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478956199] [2022-11-21 16:54:51,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478956199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:51,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:51,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:54:51,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088652683] [2022-11-21 16:54:51,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:51,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:54:51,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:51,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:54:51,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:54:51,908 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 472 [2022-11-21 16:54:51,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 434 transitions, 1204 flow. Second operand has 6 states, 6 states have (on average 370.8333333333333) internal successors, (2225), 6 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:51,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:51,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 472 [2022-11-21 16:54:51,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:57,415 INFO L130 PetriNetUnfolder]: 10272/28025 cut-off events. [2022-11-21 16:54:57,415 INFO L131 PetriNetUnfolder]: For 2472/2547 co-relation queries the response was YES. [2022-11-21 16:54:57,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47957 conditions, 28025 events. 10272/28025 cut-off events. For 2472/2547 co-relation queries the response was YES. Maximal size of possible extension queue 422. Compared 275837 event pairs, 1962 based on Foata normal form. 2/26215 useless extension candidates. Maximal degree in co-relation 47889. Up to 10797 conditions per place. [2022-11-21 16:54:57,606 INFO L137 encePairwiseOnDemand]: 465/472 looper letters, 222 selfloop transitions, 5 changer transitions 0/573 dead transitions. [2022-11-21 16:54:57,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 573 transitions, 1949 flow [2022-11-21 16:54:57,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:54:57,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:54:57,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2426 transitions. [2022-11-21 16:54:57,610 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.856638418079096 [2022-11-21 16:54:57,610 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2426 transitions. [2022-11-21 16:54:57,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2426 transitions. [2022-11-21 16:54:57,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:57,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2426 transitions. [2022-11-21 16:54:57,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 404.3333333333333) internal successors, (2426), 6 states have internal predecessors, (2426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:57,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:57,619 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:57,619 INFO L175 Difference]: Start difference. First operand has 447 places, 434 transitions, 1204 flow. Second operand 6 states and 2426 transitions. [2022-11-21 16:54:57,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 573 transitions, 1949 flow [2022-11-21 16:54:57,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 573 transitions, 1949 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:54:57,642 INFO L231 Difference]: Finished difference. Result has 450 places, 432 transitions, 1210 flow [2022-11-21 16:54:57,643 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1200, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1210, PETRI_PLACES=450, PETRI_TRANSITIONS=432} [2022-11-21 16:54:57,644 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 18 predicate places. [2022-11-21 16:54:57,644 INFO L495 AbstractCegarLoop]: Abstraction has has 450 places, 432 transitions, 1210 flow [2022-11-21 16:54:57,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 370.8333333333333) internal successors, (2225), 6 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:57,644 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:57,645 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:57,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-21 16:54:57,645 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:57,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:57,646 INFO L85 PathProgramCache]: Analyzing trace with hash 243456722, now seen corresponding path program 1 times [2022-11-21 16:54:57,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:57,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083226597] [2022-11-21 16:54:57,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:57,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:57,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:54:57,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:57,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083226597] [2022-11-21 16:54:57,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083226597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:57,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:57,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:54:57,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439158044] [2022-11-21 16:54:57,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:57,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:54:57,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:57,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:54:57,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:54:57,701 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 472 [2022-11-21 16:54:57,703 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 432 transitions, 1210 flow. Second operand has 3 states, 3 states have (on average 439.6666666666667) internal successors, (1319), 3 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:57,703 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:57,703 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 472 [2022-11-21 16:54:57,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:54:58,000 INFO L130 PetriNetUnfolder]: 57/1556 cut-off events. [2022-11-21 16:54:58,000 INFO L131 PetriNetUnfolder]: For 335/344 co-relation queries the response was YES. [2022-11-21 16:54:58,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2194 conditions, 1556 events. 57/1556 cut-off events. For 335/344 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 8211 event pairs, 12 based on Foata normal form. 0/1491 useless extension candidates. Maximal degree in co-relation 2126. Up to 56 conditions per place. [2022-11-21 16:54:58,015 INFO L137 encePairwiseOnDemand]: 468/472 looper letters, 14 selfloop transitions, 1 changer transitions 0/429 dead transitions. [2022-11-21 16:54:58,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 429 transitions, 1234 flow [2022-11-21 16:54:58,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:54:58,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:54:58,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1329 transitions. [2022-11-21 16:54:58,018 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9385593220338984 [2022-11-21 16:54:58,018 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1329 transitions. [2022-11-21 16:54:58,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1329 transitions. [2022-11-21 16:54:58,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:54:58,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1329 transitions. [2022-11-21 16:54:58,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 443.0) internal successors, (1329), 3 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:58,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:58,024 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:58,024 INFO L175 Difference]: Start difference. First operand has 450 places, 432 transitions, 1210 flow. Second operand 3 states and 1329 transitions. [2022-11-21 16:54:58,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 429 transitions, 1234 flow [2022-11-21 16:54:58,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 429 transitions, 1224 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:54:58,039 INFO L231 Difference]: Finished difference. Result has 444 places, 429 transitions, 1196 flow [2022-11-21 16:54:58,040 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1194, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1196, PETRI_PLACES=444, PETRI_TRANSITIONS=429} [2022-11-21 16:54:58,041 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 12 predicate places. [2022-11-21 16:54:58,041 INFO L495 AbstractCegarLoop]: Abstraction has has 444 places, 429 transitions, 1196 flow [2022-11-21 16:54:58,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 439.6666666666667) internal successors, (1319), 3 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:58,041 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:54:58,042 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:58,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-21 16:54:58,042 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:54:58,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:58,043 INFO L85 PathProgramCache]: Analyzing trace with hash -340997325, now seen corresponding path program 1 times [2022-11-21 16:54:58,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:58,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261168468] [2022-11-21 16:54:58,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:58,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:58,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:58,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 16:54:58,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:58,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261168468] [2022-11-21 16:54:58,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261168468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:58,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:58,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:54:58,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775182204] [2022-11-21 16:54:58,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:58,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:54:58,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:58,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:54:58,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:54:58,645 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 472 [2022-11-21 16:54:58,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 429 transitions, 1196 flow. Second operand has 6 states, 6 states have (on average 371.6666666666667) internal successors, (2230), 6 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:54:58,646 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:54:58,647 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 472 [2022-11-21 16:54:58,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:55:04,857 INFO L130 PetriNetUnfolder]: 9831/29703 cut-off events. [2022-11-21 16:55:04,857 INFO L131 PetriNetUnfolder]: For 3069/3199 co-relation queries the response was YES. [2022-11-21 16:55:05,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49791 conditions, 29703 events. 9831/29703 cut-off events. For 3069/3199 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 313723 event pairs, 4138 based on Foata normal form. 0/28015 useless extension candidates. Maximal degree in co-relation 49722. Up to 7102 conditions per place. [2022-11-21 16:55:05,109 INFO L137 encePairwiseOnDemand]: 465/472 looper letters, 206 selfloop transitions, 5 changer transitions 0/554 dead transitions. [2022-11-21 16:55:05,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 554 transitions, 1879 flow [2022-11-21 16:55:05,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:55:05,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:55:05,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2410 transitions. [2022-11-21 16:55:05,114 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8509887005649718 [2022-11-21 16:55:05,115 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2410 transitions. [2022-11-21 16:55:05,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2410 transitions. [2022-11-21 16:55:05,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:55:05,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2410 transitions. [2022-11-21 16:55:05,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 401.6666666666667) internal successors, (2410), 6 states have internal predecessors, (2410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:05,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:05,126 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:05,127 INFO L175 Difference]: Start difference. First operand has 444 places, 429 transitions, 1196 flow. Second operand 6 states and 2410 transitions. [2022-11-21 16:55:05,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 554 transitions, 1879 flow [2022-11-21 16:55:05,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 554 transitions, 1878 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:55:05,175 INFO L231 Difference]: Finished difference. Result has 446 places, 427 transitions, 1201 flow [2022-11-21 16:55:05,176 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1191, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1201, PETRI_PLACES=446, PETRI_TRANSITIONS=427} [2022-11-21 16:55:05,176 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 14 predicate places. [2022-11-21 16:55:05,176 INFO L495 AbstractCegarLoop]: Abstraction has has 446 places, 427 transitions, 1201 flow [2022-11-21 16:55:05,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 371.6666666666667) internal successors, (2230), 6 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:05,177 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:55:05,177 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:55:05,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-21 16:55:05,178 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:55:05,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:55:05,179 INFO L85 PathProgramCache]: Analyzing trace with hash 476838150, now seen corresponding path program 1 times [2022-11-21 16:55:05,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:55:05,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927044179] [2022-11-21 16:55:05,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:55:05,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:55:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:05,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:55:05,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:55:05,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927044179] [2022-11-21 16:55:05,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927044179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:55:05,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:55:05,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:55:05,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365603925] [2022-11-21 16:55:05,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:55:05,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:55:05,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:55:05,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:55:05,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:55:05,254 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 472 [2022-11-21 16:55:05,255 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 427 transitions, 1201 flow. Second operand has 3 states, 3 states have (on average 439.6666666666667) internal successors, (1319), 3 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:05,256 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:55:05,256 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 472 [2022-11-21 16:55:05,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:55:05,620 INFO L130 PetriNetUnfolder]: 72/1576 cut-off events. [2022-11-21 16:55:05,620 INFO L131 PetriNetUnfolder]: For 304/310 co-relation queries the response was YES. [2022-11-21 16:55:05,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2138 conditions, 1576 events. 72/1576 cut-off events. For 304/310 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 8329 event pairs, 19 based on Foata normal form. 6/1514 useless extension candidates. Maximal degree in co-relation 2070. Up to 77 conditions per place. [2022-11-21 16:55:05,629 INFO L137 encePairwiseOnDemand]: 466/472 looper letters, 8 selfloop transitions, 0 changer transitions 66/426 dead transitions. [2022-11-21 16:55:05,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 426 transitions, 1231 flow [2022-11-21 16:55:05,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:55:05,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:55:05,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1330 transitions. [2022-11-21 16:55:05,632 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9392655367231638 [2022-11-21 16:55:05,632 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1330 transitions. [2022-11-21 16:55:05,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1330 transitions. [2022-11-21 16:55:05,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:55:05,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1330 transitions. [2022-11-21 16:55:05,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 443.3333333333333) internal successors, (1330), 3 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:05,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:05,639 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:05,639 INFO L175 Difference]: Start difference. First operand has 446 places, 427 transitions, 1201 flow. Second operand 3 states and 1330 transitions. [2022-11-21 16:55:05,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 426 transitions, 1231 flow [2022-11-21 16:55:05,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 426 transitions, 1221 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:55:05,652 INFO L231 Difference]: Finished difference. Result has 440 places, 360 transitions, 874 flow [2022-11-21 16:55:05,653 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1185, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=874, PETRI_PLACES=440, PETRI_TRANSITIONS=360} [2022-11-21 16:55:05,653 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 8 predicate places. [2022-11-21 16:55:05,653 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 360 transitions, 874 flow [2022-11-21 16:55:05,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 439.6666666666667) internal successors, (1319), 3 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:05,654 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:55:05,654 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:55:05,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-21 16:55:05,655 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:55:05,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:55:05,655 INFO L85 PathProgramCache]: Analyzing trace with hash 653880946, now seen corresponding path program 1 times [2022-11-21 16:55:05,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:55:05,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610679046] [2022-11-21 16:55:05,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:55:05,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:55:05,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:06,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 16:55:06,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:55:06,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610679046] [2022-11-21 16:55:06,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610679046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:55:06,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:55:06,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:55:06,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826567269] [2022-11-21 16:55:06,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:55:06,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:55:06,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:55:06,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:55:06,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:55:06,304 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 472 [2022-11-21 16:55:06,307 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 360 transitions, 874 flow. Second operand has 6 states, 6 states have (on average 371.8333333333333) internal successors, (2231), 6 states have internal predecessors, (2231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:06,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:55:06,307 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 472 [2022-11-21 16:55:06,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:55:11,302 INFO L130 PetriNetUnfolder]: 8791/26208 cut-off events. [2022-11-21 16:55:11,302 INFO L131 PetriNetUnfolder]: For 1818/1842 co-relation queries the response was YES. [2022-11-21 16:55:11,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43250 conditions, 26208 events. 8791/26208 cut-off events. For 1818/1842 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 273288 event pairs, 3596 based on Foata normal form. 0/25124 useless extension candidates. Maximal degree in co-relation 43226. Up to 6300 conditions per place. [2022-11-21 16:55:11,497 INFO L137 encePairwiseOnDemand]: 465/472 looper letters, 203 selfloop transitions, 5 changer transitions 0/490 dead transitions. [2022-11-21 16:55:11,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 490 transitions, 1562 flow [2022-11-21 16:55:11,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:55:11,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:55:11,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2412 transitions. [2022-11-21 16:55:11,501 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8516949152542372 [2022-11-21 16:55:11,502 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2412 transitions. [2022-11-21 16:55:11,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2412 transitions. [2022-11-21 16:55:11,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:55:11,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2412 transitions. [2022-11-21 16:55:11,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 402.0) internal successors, (2412), 6 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:11,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:11,512 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:11,512 INFO L175 Difference]: Start difference. First operand has 440 places, 360 transitions, 874 flow. Second operand 6 states and 2412 transitions. [2022-11-21 16:55:11,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 490 transitions, 1562 flow [2022-11-21 16:55:11,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 490 transitions, 1484 flow, removed 14 selfloop flow, removed 23 redundant places. [2022-11-21 16:55:11,553 INFO L231 Difference]: Finished difference. Result has 371 places, 358 transitions, 802 flow [2022-11-21 16:55:11,554 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=802, PETRI_PLACES=371, PETRI_TRANSITIONS=358} [2022-11-21 16:55:11,554 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -61 predicate places. [2022-11-21 16:55:11,554 INFO L495 AbstractCegarLoop]: Abstraction has has 371 places, 358 transitions, 802 flow [2022-11-21 16:55:11,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 371.8333333333333) internal successors, (2231), 6 states have internal predecessors, (2231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:11,555 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:55:11,555 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:55:11,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-21 16:55:11,556 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:55:11,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:55:11,557 INFO L85 PathProgramCache]: Analyzing trace with hash 2059440729, now seen corresponding path program 1 times [2022-11-21 16:55:11,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:55:11,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312536029] [2022-11-21 16:55:11,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:55:11,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:55:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:11,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 16:55:11,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:55:11,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312536029] [2022-11-21 16:55:11,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312536029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:55:11,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:55:11,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:55:11,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427423979] [2022-11-21 16:55:11,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:55:11,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:55:11,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:55:11,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:55:11,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:55:11,674 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 472 [2022-11-21 16:55:11,676 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 358 transitions, 802 flow. Second operand has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:11,676 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:55:11,676 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 472 [2022-11-21 16:55:11,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:55:11,855 INFO L130 PetriNetUnfolder]: 31/886 cut-off events. [2022-11-21 16:55:11,855 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2022-11-21 16:55:11,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1061 conditions, 886 events. 31/886 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3551 event pairs, 4 based on Foata normal form. 0/862 useless extension candidates. Maximal degree in co-relation 1050. Up to 18 conditions per place. [2022-11-21 16:55:11,860 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 8 selfloop transitions, 2 changer transitions 0/358 dead transitions. [2022-11-21 16:55:11,860 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 358 transitions, 823 flow [2022-11-21 16:55:11,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:55:11,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:55:11,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1316 transitions. [2022-11-21 16:55:11,863 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9293785310734464 [2022-11-21 16:55:11,863 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1316 transitions. [2022-11-21 16:55:11,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1316 transitions. [2022-11-21 16:55:11,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:55:11,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1316 transitions. [2022-11-21 16:55:11,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.6666666666667) internal successors, (1316), 3 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:11,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:11,869 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:11,869 INFO L175 Difference]: Start difference. First operand has 371 places, 358 transitions, 802 flow. Second operand 3 states and 1316 transitions. [2022-11-21 16:55:11,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 358 transitions, 823 flow [2022-11-21 16:55:11,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 358 transitions, 813 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:55:11,877 INFO L231 Difference]: Finished difference. Result has 367 places, 357 transitions, 794 flow [2022-11-21 16:55:11,878 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=794, PETRI_PLACES=367, PETRI_TRANSITIONS=357} [2022-11-21 16:55:11,879 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -65 predicate places. [2022-11-21 16:55:11,879 INFO L495 AbstractCegarLoop]: Abstraction has has 367 places, 357 transitions, 794 flow [2022-11-21 16:55:11,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:11,879 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:55:11,880 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:55:11,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-21 16:55:11,880 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting thread2Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:55:11,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:55:11,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1223463020, now seen corresponding path program 1 times [2022-11-21 16:55:11,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:55:11,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676598368] [2022-11-21 16:55:11,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:55:11,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:55:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:11,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 16:55:11,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:55:11,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676598368] [2022-11-21 16:55:11,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676598368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:55:11,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:55:11,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:55:11,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504089293] [2022-11-21 16:55:11,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:55:11,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:55:11,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:55:11,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:55:11,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:55:11,993 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 472 [2022-11-21 16:55:11,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 357 transitions, 794 flow. Second operand has 3 states, 3 states have (on average 437.3333333333333) internal successors, (1312), 3 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:11,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:55:11,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 472 [2022-11-21 16:55:11,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:55:12,158 INFO L130 PetriNetUnfolder]: 37/752 cut-off events. [2022-11-21 16:55:12,158 INFO L131 PetriNetUnfolder]: For 29/31 co-relation queries the response was YES. [2022-11-21 16:55:12,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 900 conditions, 752 events. 37/752 cut-off events. For 29/31 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2731 event pairs, 6 based on Foata normal form. 0/732 useless extension candidates. Maximal degree in co-relation 889. Up to 25 conditions per place. [2022-11-21 16:55:12,164 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 0 selfloop transitions, 0 changer transitions 357/357 dead transitions. [2022-11-21 16:55:12,164 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 357 transitions, 815 flow [2022-11-21 16:55:12,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:55:12,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:55:12,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1316 transitions. [2022-11-21 16:55:12,167 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9293785310734464 [2022-11-21 16:55:12,167 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1316 transitions. [2022-11-21 16:55:12,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1316 transitions. [2022-11-21 16:55:12,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:55:12,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1316 transitions. [2022-11-21 16:55:12,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.6666666666667) internal successors, (1316), 3 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:12,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:12,173 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:12,173 INFO L175 Difference]: Start difference. First operand has 367 places, 357 transitions, 794 flow. Second operand 3 states and 1316 transitions. [2022-11-21 16:55:12,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 357 transitions, 815 flow [2022-11-21 16:55:12,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 357 transitions, 811 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:55:12,179 INFO L231 Difference]: Finished difference. Result has 366 places, 0 transitions, 0 flow [2022-11-21 16:55:12,179 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=788, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=366, PETRI_TRANSITIONS=0} [2022-11-21 16:55:12,180 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -66 predicate places. [2022-11-21 16:55:12,180 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 0 transitions, 0 flow [2022-11-21 16:55:12,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.3333333333333) internal successors, (1312), 3 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:55:12,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (73 of 74 remaining) [2022-11-21 16:55:12,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (72 of 74 remaining) [2022-11-21 16:55:12,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (71 of 74 remaining) [2022-11-21 16:55:12,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (70 of 74 remaining) [2022-11-21 16:55:12,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (69 of 74 remaining) [2022-11-21 16:55:12,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (68 of 74 remaining) [2022-11-21 16:55:12,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (67 of 74 remaining) [2022-11-21 16:55:12,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (66 of 74 remaining) [2022-11-21 16:55:12,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (65 of 74 remaining) [2022-11-21 16:55:12,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (64 of 74 remaining) [2022-11-21 16:55:12,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (63 of 74 remaining) [2022-11-21 16:55:12,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (62 of 74 remaining) [2022-11-21 16:55:12,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (61 of 74 remaining) [2022-11-21 16:55:12,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (60 of 74 remaining) [2022-11-21 16:55:12,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (59 of 74 remaining) [2022-11-21 16:55:12,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (58 of 74 remaining) [2022-11-21 16:55:12,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (57 of 74 remaining) [2022-11-21 16:55:12,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (56 of 74 remaining) [2022-11-21 16:55:12,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (55 of 74 remaining) [2022-11-21 16:55:12,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (54 of 74 remaining) [2022-11-21 16:55:12,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (53 of 74 remaining) [2022-11-21 16:55:12,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (52 of 74 remaining) [2022-11-21 16:55:12,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (51 of 74 remaining) [2022-11-21 16:55:12,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (50 of 74 remaining) [2022-11-21 16:55:12,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (49 of 74 remaining) [2022-11-21 16:55:12,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (48 of 74 remaining) [2022-11-21 16:55:12,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (47 of 74 remaining) [2022-11-21 16:55:12,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (46 of 74 remaining) [2022-11-21 16:55:12,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (45 of 74 remaining) [2022-11-21 16:55:12,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (44 of 74 remaining) [2022-11-21 16:55:12,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (43 of 74 remaining) [2022-11-21 16:55:12,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (42 of 74 remaining) [2022-11-21 16:55:12,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 74 remaining) [2022-11-21 16:55:12,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (40 of 74 remaining) [2022-11-21 16:55:12,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (39 of 74 remaining) [2022-11-21 16:55:12,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (38 of 74 remaining) [2022-11-21 16:55:12,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (37 of 74 remaining) [2022-11-21 16:55:12,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (36 of 74 remaining) [2022-11-21 16:55:12,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (35 of 74 remaining) [2022-11-21 16:55:12,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (34 of 74 remaining) [2022-11-21 16:55:12,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (33 of 74 remaining) [2022-11-21 16:55:12,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (32 of 74 remaining) [2022-11-21 16:55:12,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (31 of 74 remaining) [2022-11-21 16:55:12,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (30 of 74 remaining) [2022-11-21 16:55:12,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 74 remaining) [2022-11-21 16:55:12,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 74 remaining) [2022-11-21 16:55:12,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (27 of 74 remaining) [2022-11-21 16:55:12,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (26 of 74 remaining) [2022-11-21 16:55:12,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (25 of 74 remaining) [2022-11-21 16:55:12,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (24 of 74 remaining) [2022-11-21 16:55:12,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (23 of 74 remaining) [2022-11-21 16:55:12,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (22 of 74 remaining) [2022-11-21 16:55:12,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (21 of 74 remaining) [2022-11-21 16:55:12,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (20 of 74 remaining) [2022-11-21 16:55:12,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (19 of 74 remaining) [2022-11-21 16:55:12,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (18 of 74 remaining) [2022-11-21 16:55:12,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (17 of 74 remaining) [2022-11-21 16:55:12,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (16 of 74 remaining) [2022-11-21 16:55:12,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (15 of 74 remaining) [2022-11-21 16:55:12,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (14 of 74 remaining) [2022-11-21 16:55:12,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (13 of 74 remaining) [2022-11-21 16:55:12,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (12 of 74 remaining) [2022-11-21 16:55:12,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (11 of 74 remaining) [2022-11-21 16:55:12,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (10 of 74 remaining) [2022-11-21 16:55:12,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (9 of 74 remaining) [2022-11-21 16:55:12,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (8 of 74 remaining) [2022-11-21 16:55:12,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (7 of 74 remaining) [2022-11-21 16:55:12,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (6 of 74 remaining) [2022-11-21 16:55:12,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (5 of 74 remaining) [2022-11-21 16:55:12,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (4 of 74 remaining) [2022-11-21 16:55:12,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (3 of 74 remaining) [2022-11-21 16:55:12,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (2 of 74 remaining) [2022-11-21 16:55:12,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (1 of 74 remaining) [2022-11-21 16:55:12,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (0 of 74 remaining) [2022-11-21 16:55:12,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-21 16:55:12,200 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:55:12,208 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:55:12,209 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:55:12,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:55:12 BasicIcfg [2022-11-21 16:55:12,214 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:55:12,215 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:55:12,215 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:55:12,215 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:55:12,216 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:54:17" (3/4) ... [2022-11-21 16:55:12,218 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:55:12,224 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-21 16:55:12,224 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-21 16:55:12,232 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-21 16:55:12,232 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 16:55:12,233 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 16:55:12,233 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:55:12,295 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211c38b-b971-458d-8fdd-15e8c22c91e2/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:55:12,295 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:55:12,296 INFO L158 Benchmark]: Toolchain (without parser) took 56847.16ms. Allocated memory was 228.6MB in the beginning and 12.3GB in the end (delta: 12.1GB). Free memory was 194.4MB in the beginning and 9.8GB in the end (delta: -9.6GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2022-11-21 16:55:12,296 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 151.0MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:55:12,296 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.62ms. Allocated memory is still 228.6MB. Free memory was 194.4MB in the beginning and 181.5MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 16:55:12,297 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.77ms. Allocated memory is still 228.6MB. Free memory was 181.5MB in the beginning and 177.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:55:12,297 INFO L158 Benchmark]: Boogie Preprocessor took 48.84ms. Allocated memory is still 228.6MB. Free memory was 177.8MB in the beginning and 174.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:55:12,297 INFO L158 Benchmark]: RCFGBuilder took 1098.61ms. Allocated memory is still 228.6MB. Free memory was 174.4MB in the beginning and 139.6MB in the end (delta: 34.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-21 16:55:12,298 INFO L158 Benchmark]: TraceAbstraction took 55120.57ms. Allocated memory was 228.6MB in the beginning and 12.3GB in the end (delta: 12.1GB). Free memory was 138.8MB in the beginning and 9.8GB in the end (delta: -9.7GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. [2022-11-21 16:55:12,298 INFO L158 Benchmark]: Witness Printer took 80.40ms. Allocated memory is still 12.3GB. Free memory was 9.8GB in the beginning and 9.8GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:55:12,304 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 151.0MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.62ms. Allocated memory is still 228.6MB. Free memory was 194.4MB in the beginning and 181.5MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.77ms. Allocated memory is still 228.6MB. Free memory was 181.5MB in the beginning and 177.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.84ms. Allocated memory is still 228.6MB. Free memory was 177.8MB in the beginning and 174.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1098.61ms. Allocated memory is still 228.6MB. Free memory was 174.4MB in the beginning and 139.6MB in the end (delta: 34.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 55120.57ms. Allocated memory was 228.6MB in the beginning and 12.3GB in the end (delta: 12.1GB). Free memory was 138.8MB in the beginning and 9.8GB in the end (delta: -9.7GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. * Witness Printer took 80.40ms. Allocated memory is still 12.3GB. Free memory was 9.8GB in the beginning and 9.8GB 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: - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: 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: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: 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, 667 locations, 74 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: 54.8s, OverallIterations: 27, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 47.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1013 SdHoareTripleChecker+Valid, 4.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1013 mSDsluCounter, 1642 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 802 mSDsCounter, 755 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3787 IncrementalHoareTripleChecker+Invalid, 4542 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 755 mSolverCounterUnsat, 840 mSDtfsCounter, 3787 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1214occurred in iteration=18, InterpolantAutomatonStates: 133, 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: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 3421 NumberOfCodeBlocks, 3421 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3394 ConstructedInterpolants, 0 QuantifiedInterpolants, 4949 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 PerfectInterpolantSequences, 16/16 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 44 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 16:55:12,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4211c38b-b971-458d-8fdd-15e8c22c91e2/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE